Royalty Audit Checklist: Clause and Scope Review, Records Request Design, Revenue and Deduction Testing, Findings and Dispute Handling, and Remediation and Forward Terms

By Casey Scott McKay · 2024-07-21

A nine-phase working checklist for planning, running, and closing a royalty audit, usable by a licensor commissioning one or a licensee receiving notice. Phases one and two cover the clause review and the portfolio triage that decide whether an audit is worth commissioning at all. Phases three and four cover auditor engagement and the records request that determines whether the audit can work. Phases five and six cover reconciliation, coverage testing, and the deduction analysis where most disputes live. Phases seven and eight cover the draft report cycle, the licensee's response, and the settlement structure. Phase nine covers remediation, forward terms, and the template lessons that make the next licence better. Each phase closes with a gate.

IP and Technology > General IP | Checklist | Published 21 July 2024 - Updated 16 November 2025 | Casey Scott McKay - marksy.us

How to use this checklist

A royalty audit is a contractual right exercised through an accounting process and settled as a legal negotiation, and it fails when any one of those three disciplines is neglected. Licensors commission audits without reading the clause that defines what they may do. Auditors produce reports that quantify findings without tying them to licence provisions. Lawyers negotiate settlements that recover historic royalty and leave the methodology that caused the shortfall entirely untouched, guaranteeing the same conversation three years later.

This checklist runs in nine phases. Phases one and two decide whether to audit and where. Phases three and four set up the engagement and the records request. Phases five and six are the fieldwork. Phases seven and eight are the report cycle and the settlement. Phase nine is the part everybody skips and which produces most of the long-term value.

Run the phases in order. Each closes with a gate — a short list of things that must be true before the next phase starts. The gates exist because the most expensive audit failures are sequencing failures: fieldwork commissioned before the records definition was checked, a draft report circulated before the licensor's counsel read it, a settlement signed before anybody considered the forward terms.

A licensee receiving an audit notice should run the same checklist from the other side. Almost every item has a defensive counterpart, and a licensee that has worked through phases three, four, and six before the auditor arrives will have a substantially better audit than one that responds reactively.

For the underlying substance, work alongside the companion guide, Conducting or Defending a Royalty Audit, and the background article, The Number on the Statement. Use the Royalty Audit and Licence Compliance Toolkit for the clause language and the standard requests.

Phase 1 — Read the clause before anything else

Everything achievable in an audit is defined by a provision most parties have not looked at since signature. Read it first, in full, and record the answers.

Trigger and notice

[ ] Confirm who may exercise the right — licensor only, or an affiliate, or a successor. Assignment histories break this more often than expected.
[ ] Record the notice period required and the form of notice, and diary the date the notice must be served to complete within the audit window.
[ ] Record the frequency limit — once per year, once per twelve months, once per audited period — and check what has already been used.
[ ] Confirm whether notice must specify a period, and whether a period once audited can be re-audited.
[ ] Check whether the right survives termination of the licence, and for how long. A licensor auditing a terminated licence with no survival clause has nothing.

Look-back period

[ ] Record the number of years the audit may reach.
[ ] Compare that period against the contractual limitation period for a claim, and against the statutory limitation period in the governing law.
[ ] Identify the earliest period still recoverable as at the intended notice date, and confirm nothing valuable falls outside it.
[ ] Check for any acceptance or deemed-approval clause — a provision that statements become final after a stated period — and record its effect on the look-back.

Records definition

[ ] Record the exact definition of the records the licensee must keep and produce. This is the single most important term in the clause.
[ ] Assess whether "books and records relating to the calculation of royalties" is what appears, and note that this narrow phrasing excludes almost everything an auditor needs.
[ ] Identify whether the definition reaches sales ledgers, product master data, customer and distributor agreements, credit and return records, transfer pricing documentation, and system extracts.
[ ] Confirm whether electronic records and system access are within scope, or only paper.
[ ] Record any express exclusions, and any confidentiality carve-outs that would let the licensee withhold customer-identifying data.

Auditor and access

[ ] Record who may conduct the audit — any independent accountant, a Big Four firm, a firm approved by the licensee.
[ ] Check for any prohibition on contingency-fee auditors, which is common and which constrains the licensor's cost structure.
[ ] Record the licensee's approval right over the auditor, and whether approval may not be unreasonably withheld.
[ ] Record the access terms — premises, hours, remote access, duration.
[ ] Record the confidentiality obligations the auditor must accept and check whether they permit the auditor to report findings in detail to the licensor.

Cost and consequences

[ ] Record who bears the audit cost as a default.
[ ] Record the shifting threshold — the discrepancy percentage at which the licensee pays — and whether it is calculated on the audited period as a whole or on any single period.
[ ] Record the interest rate on underpayment and the date from which it runs.
[ ] Record any right to terminate for a discrepancy above a stated level.
[ ] Record the dispute resolution mechanism for audit findings specifically, which is often different from the licence's general clause — expert determination is common.

Gate 1. The clause has been read in full and the answers above recorded in a one-page summary. Any provision that materially limits what the audit can achieve has been flagged. If the records definition is the narrow "relating to the calculation of royalties" formulation, the licensor understands before spending anything that the auditor may be confined to the licensee's own workings.

Phase 2 — Triage the portfolio and run the desk review

Audit rights are scarce. A licensor with fifteen licences and the budget for two audits a year must choose well, and the choosing is a distinct analytical exercise that should not be conflated with the audit itself.

Portfolio ranking

[ ] List every live licence with its royalty base, its contractual rate, and the royalty actually received in each of the last three years.
[ ] Calculate the effective rate for each — royalty received divided by reported sales — and compare it to the contractual rate.
[ ] Flag any licence where the effective rate has moved by more than half a percentage point across three years without a contractual change.
[ ] Flag any licensee that has restated a prior period, which indicates a calculation nobody is confident in.
[ ] Flag any licensee that has made an acquisition, launched a product line, or entered a territory during the period, since coverage errors follow corporate change.
[ ] Flag any licensee whose reported sales have declined while its public revenue has grown.
[ ] Flag any licensee whose deduction percentage has risen, which is the clearest single indicator of methodology drift.
[ ] Flag any licensee that reports a suspiciously round number, or the same number repeatedly, or a number with no supporting detail.

Desk review

[ ] For each flagged licence, compare the licensee's public product catalogue against the products appearing in the statements.
[ ] Compare the licensee's corporate structure — from filings, announcements, and its own website — against the entities reporting.
[ ] Compare the territories in the licensee's marketing against the territories reporting.
[ ] Compare the channels the licensee sells through — direct, distributor, marketplace, subscription, bundled — against the channels reflected in the statements.
[ ] Check whether the licensee has announced any bundle, subscription, or platform product that would raise an apportionment question.
[ ] Recompute the arithmetic on the face of each statement. Errors in addition are more common than anybody expects.
[ ] Record the specific questions the desk review produces.

Preliminary enquiry

[ ] Where the desk review has produced a specific question, put it in writing to the licensee before deciding on an audit.
[ ] Frame it as a query about methodology rather than an allegation, since the answer is more useful than the fight.
[ ] Record the answer, since it will either resolve the point, narrow the audit, or provide the specific target that makes a full audit cheaper.
[ ] Note that a written query also starts a record that defeats a later acceptance or course-of-dealing defence.

Decision

[ ] Estimate the audit cost for the candidate licensee, scaled to its complexity rather than to the licensor's revenue.
[ ] Estimate the recoverable exposure, being realistic that the recoverable amount is the amount within the look-back and above the point where the licensee will litigate rather than pay.
[ ] Assess the cost-shifting probability — how likely is a discrepancy above the threshold.
[ ] Assess the forward value: the improvement in every subsequent year's reporting, which frequently exceeds the historic recovery.
[ ] Assess the relationship consequence honestly, including the consequence of not auditing.
[ ] Make and record the decision.

Gate 2. The portfolio has been ranked, the desk review has been run on the flagged licences, any preliminary queries have been sent and answered, and a specific licensee has been selected with a written business case that includes both the recovery estimate and the forward value.

Phase 3 — Engage the auditor

The auditor determines the quality of the audit more than any other choice, and the engagement letter determines whether the report is usable.

Selection

[ ] Confirm the candidate meets the clause's definition of a permitted auditor.
[ ] Confirm the candidate is not conflicted — check the licensee and its group against the firm's client list before approaching.
[ ] Assess sector experience specifically. An auditor who has audited pharmaceutical licences understands the deduction categories; one who has not will learn on the licensor's money.
[ ] Assess systems capability. A licensee running an enterprise system requires an auditor comfortable extracting and analysing large transaction populations.
[ ] Ask for the firm's approach to sampling and extrapolation before engaging, since a firm that samples where full population testing is possible will produce a weaker report.
[ ] Seek approval from the licensee if the clause requires it, and diary the approval period.

Engagement terms

[ ] Define the scope by reference to the licence provisions, not in general terms.
[ ] Define the periods to be audited explicitly.
[ ] Require findings to be expressed by reference to the specific licence provision they arise under.
[ ] Require interpretive assumptions to be listed separately from arithmetic findings.
[ ] Require quantification to be modular, so a conceded category can be removed without recalculating the whole.
[ ] Require data lineage to be documented — which extract, which fields, which reconciliation.
[ ] Require a draft report to the licensor before anything goes to the licensee.
[ ] Agree the fee basis, and confirm it does not breach any contingency prohibition in the clause.
[ ] Agree the confidentiality terms the licensee will require, and check they permit detailed reporting to the licensor.
[ ] Agree the auditor's availability for the response cycle and, if needed, for expert evidence.

Privilege and communications

[ ] Decide whether the auditor is engaged by the licensor directly or through counsel, and take advice on the privilege consequences in the governing jurisdiction.
[ ] Instruct that all interpretive questions are routed through counsel rather than resolved by the auditor unilaterally.
[ ] Establish the communication protocol with the licensee — who speaks to whom, and in what form.
[ ] Record that field notes and working papers may become disclosable, and instruct accordingly on tone.

Gate 3. An unconflicted, sector-experienced auditor is engaged on terms that require provision-referenced, modular, lineage-documented findings and a draft to the licensor first. Privilege has been considered and the communications protocol is set.

Phase 4 — Design and serve the records request

The records request decides whether the audit works. A request that asks for "supporting documentation" will receive a summary spreadsheet and the audit will be over before it begins.

Serve the notice

[ ] Serve audit notice in the form and to the address the licence requires, and keep proof of service.
[ ] Name the auditor and enclose whatever the clause requires by way of confidentiality undertakings.
[ ] State the periods to be audited.
[ ] Propose fieldwork dates that leave time for the response cycle within any contractual deadline.
[ ] Enclose the records request with the notice rather than sending it later.

System and master data

[ ] Request the chart of accounts and the revenue account structure.
[ ] Request the product master file for the audited periods, including every field used to determine whether a product is royalty-bearing.
[ ] Request the mapping table or logic that identifies royalty-bearing products, and the change log for that mapping.
[ ] Request the customer and channel master data.
[ ] Request a list of legal entities in the group, with their activities and territories.
[ ] Request the system documentation for the royalty calculation, including any manual steps.

Transaction data

[ ] Request the full transaction-level sales extract for the audited periods, at invoice-line granularity, in a machine-readable format.
[ ] Specify the fields: date, entity, customer, country of sale, product code, description, quantity, gross price, each discount and deduction type separately, net amount, currency, and exchange rate applied.
[ ] Request credit notes, returns, and rebates separately, with the original invoices they relate to.
[ ] Request the royalty calculation workings that produced each statement.
[ ] Request the reconciliation between reported net sales and the statutory accounts or the trial balance.

Deduction support

[ ] Request the definition and policy for each deduction category applied.
[ ] Request supporting documentation for the largest deduction category, at a transaction level.
[ ] Request the freight and insurance basis, and how it is allocated where it is not invoiced separately.
[ ] Request the rebate agreements or trade terms underlying volume rebates.
[ ] Request the bad debt policy and the write-off records.
[ ] Request the basis for any allowance-type deduction — reserves, provisions, estimates — and the true-up mechanism.

Contracts and coverage

[ ] Request distributor and reseller agreements for the audited territories.
[ ] Request any sublicence agreements and the sublicensee reporting.
[ ] Request any bundle or platform pricing documentation and the internal apportionment methodology.
[ ] Request marketing materials and price lists for the audited periods, which reveal products and territories the statements may not.
[ ] Request details of any corporate acquisition during the period and the products acquired.

Anticipate the objections

[ ] Where the licensee objects that a request exceeds the records definition, respond in writing with the specific contractual basis rather than escalating tone.
[ ] Where the licensee offers a summary in place of transaction data, record the refusal and note it as a limitation in the report.
[ ] Where the licensee cites confidentiality over customer identity, offer pseudonymised customer identifiers rather than abandoning the field.
[ ] Where the licensee cites system limitations, ask for the extract specification it can produce and work from that rather than accepting nothing.
[ ] Keep a written record of every request, refusal, and partial production, since the pattern matters if the matter escalates.

Gate 4. The notice is validly served, the request is specific and field-level, the objections have been answered in writing, and the licensor knows before fieldwork begins which categories of data it will not receive.

Phase 5 — Reconcile, then test coverage

The order matters. An auditor who tests transactions without first tying reported royalty to the ledger is testing an unverified population.

Reconciliation

[ ] Tie the reported net sales in each royalty statement to the licensee's general ledger.
[ ] Tie the ledger to the statutory accounts for at least one full year, and explain every difference.
[ ] Confirm the transaction extract totals agree with the ledger, and investigate any variance before proceeding.
[ ] Confirm the royalty paid agrees with the royalty calculated in the licensee's own workings.
[ ] Recalculate the arithmetic on each statement independently.
[ ] Record any period where reconciliation fails, since an unreconciled period is a finding in itself.

Product coverage

[ ] Test the product master against the licence's Licensed Product definition, product by product where the population allows.
[ ] Identify every product excluded from the royalty base and record the licensee's stated reason for each exclusion.
[ ] Test whether any excluded product incorporates the licensed technology or bears the licensed mark, using specifications, marketing material, and — for patents — the claims.
[ ] Test successor and variant products specifically, since a product renamed after a redesign is the most common coverage error.
[ ] Test products acquired with an acquired business.
[ ] Test service and subscription offerings that embed the licensed subject matter, which frequently sit outside a product-oriented mapping.
[ ] Test spare parts, consumables, and accessories against the definition.

Entity coverage

[ ] Compare the reporting entities against the full group entity list.
[ ] Identify any entity selling licensed products that does not report.
[ ] Test intra-group sales specifically, and identify where the royalty is calculated — on the intra-group transfer price or on the ultimate third-party sale.
[ ] Test whether the licence permits affiliate use at all, and whether an affiliate benefiting from it is captured.
[ ] Test entities acquired during the period.
[ ] Test any joint venture or minority-held entity using the licensed subject matter.

Territory and channel coverage

[ ] Compare the territories reported against the licensed territory and against the licensee's actual distribution.
[ ] Test whether sales into a territory through a distributor are captured at the right point.
[ ] Test marketplace and platform sales, where the reported figure is frequently net of platform commission when the licence says gross.
[ ] Test direct-to-consumer sales, which often sit in a different system.
[ ] Test bundled and promotional distribution, including free-of-charge units where the licence provides a deemed price.

Gate 5. Reconciliation is complete for every audited period, coverage has been tested at product, entity, territory, and channel level, and each coverage exception has been recorded with the licence provision it engages.

Phase 6 — Test the calculation

Coverage decides whether an item is in the base. Calculation decides what the base is worth. Most of the money is in coverage; most of the argument is in calculation.

Rate application

[ ] Confirm the rate applied matches the contractual rate for each product category.
[ ] Test any tiered rate structure, including whether tiers reset annually and whether they aggregate across entities.
[ ] Test any stacking or offset provision that reduces the rate where third-party royalties are paid, and verify the third-party payments claimed.
[ ] Test any most-favoured-licensee provision against the licensor's other agreements.
[ ] Test minimum royalty and shortfall provisions, and whether credits have been applied correctly.
[ ] Test any rate change effective mid-period and whether the split was applied on the right date.

Deductions

[ ] List every deduction category applied and match each against the licence's permitted deduction list.
[ ] Flag every deduction category applied that does not appear in the licence, which is the single most common finding.
[ ] Test the quantum of each permitted deduction against its supporting documentation.
[ ] Test whether deductions are actual or estimated, and where estimated, whether a true-up occurs.
[ ] Test freight and insurance specifically, including allocation methodology where not separately invoiced.
[ ] Test cash discounts against the payment terms actually applied.
[ ] Test volume rebates against the underlying trade agreements.
[ ] Test returns and credits for double-counting — deducted once as a return and again as an allowance.
[ ] Test bad debt deductions for subsequent recovery.
[ ] Test whether any deduction is applied to the royalty rather than to the base, which changes the arithmetic materially.
[ ] Calculate the deduction percentage by period and by product line and investigate any trend.

Apportionment

[ ] Identify every bundle, suite, subscription, or platform offering containing licensed and unlicensed elements.
[ ] Record the apportionment methodology the licensee has applied and when it was adopted.
[ ] Test the methodology for consistency across products and across periods.
[ ] Test the methodology against the licence, which frequently says nothing, and record the interpretive gap.
[ ] Test whether standalone selling prices exist for the components and whether they were used.
[ ] Test whether the methodology changed and whether the change coincided with a bundle launch.
[ ] Quantify the difference between the licensee's methodology and a defensible alternative, so the settlement discussion has a range.

Currency and timing

[ ] Test the exchange rate source and the conversion date against the licence.
[ ] Test whether conversion occurs at the transaction date, the period-end, or an average, and whether that is consistent.
[ ] Test the revenue recognition point applied — shipment, delivery, invoice, cash — against the licence's definition of when a sale occurs.
[ ] Test period cut-off at each year end, where deferral is easiest and most common.
[ ] Test any withholding tax deducted against the licence and the applicable treaty position, and cross-refer to Where the Royalty Lands.
[ ] Test whether late payment interest is due on any period and whether it has been paid.

Methodology discipline

[ ] Prefer full population testing to sampling wherever the data permits, since it removes the extrapolation argument entirely.
[ ] Where sampling is necessary, stratify by product line, entity, and channel rather than sampling randomly across a heterogeneous population.
[ ] Record the sampling basis and the extrapolation method in the working papers.
[ ] Quantify each finding independently so categories can be settled separately.
[ ] Classify each finding as clear error, interpretive difference, or coverage question, in the working papers and not only in the report.
[ ] Assess the licensee's own controls — documented mapping, annual review, sign-off — and record the assessment, since it indicates where further testing is warranted.

Gate 6. Every rate, deduction, apportionment, and timing question has been tested and quantified, each finding is classified and separately quantified, and the methodology is documented well enough to survive challenge.

Phase 7 — The draft report and the response cycle

Draft reports overstate. Auditors resolve ambiguity in favour of the party paying them, and a licensor that presents a draft as a demand loses credibility when half of it falls away.

Licensor review of the draft

[ ] Read the draft before the licensee sees it, with counsel involved.
[ ] Check every finding is tied to a specific licence provision.
[ ] Check the interpretive assumptions are visible and separately listed.
[ ] Remove or reframe "should have been" language where the licence is genuinely ambiguous.
[ ] Check the quantification is modular.
[ ] Check the tone. A report that characterises interpretive differences as underreporting will produce a defensive response and a longer negotiation.
[ ] Sort the findings into the three tiers — clear error, interpretive difference, coverage question — and form a private view on which tier will hold.
[ ] Form a settlement range before the draft goes out, so the negotiation is not conducted reactively.

Issuing the draft

[ ] Issue the draft in the form and to the recipient the licence requires.
[ ] State the response period, and make it realistic — a licensee given ten days will produce a rejection rather than an explanation.
[ ] Offer a meeting between the auditor and the licensee's finance team, which resolves more than correspondence does.
[ ] Confirm the confidentiality terms applying to the draft.

Anticipating the licensee's response

[ ] Expect and prepare for the limitation argument on the earliest periods.
[ ] Expect and prepare for any acceptance or deemed-approval argument.
[ ] Expect and prepare for the course-of-dealing argument — that the licensor received statements in this form for years and said nothing.
[ ] Expect and prepare for the methodology attack on any sampling and extrapolation.
[ ] Expect and prepare for a contra proferentem argument on any ambiguous definition the licensor drafted.
[ ] Expect the scope objection — that the auditor exceeded the audit right — and check the record of requests and refusals.
[ ] Expect a counterclaim in a genuinely adversarial matter: validity challenge under Lear, Inc. v. Adkins and MedImmune, Inc. v. Genentech, Inc., or an allegation of licensor breach.

Processing the response

[ ] Require the licensee's response to address findings individually rather than globally.
[ ] Require supporting documentation for each rejected finding.
[ ] Concede clearly wrong findings promptly and in writing, since it costs nothing and buys credibility on the rest.
[ ] Update the quantification after each round rather than carrying the original number into the negotiation.
[ ] Record which findings are agreed, which are disputed on fact, and which are disputed on interpretation.
[ ] Ask the auditor to issue a final report reflecting the agreed and disputed positions.

Gate 7. The final report distinguishes agreed findings from disputed ones, every finding is provision-referenced, the licensor's settlement range has been set and revised in light of the response, and the limitation and acceptance positions are understood.

Phase 8 — Settle

The settlement is where an audit is won or wasted. A licensor that recovers the historic number and changes nothing forward has bought one payment; a licensor that recovers less and fixes the methodology has bought an annuity.

Structure the deal

[ ] Settle category by category rather than as a single lump, so that the agreed findings are not discounted by the disputed ones.
[ ] Decide whether the payment is a lump sum or an adjustment credited across future periods, and price the difference.
[ ] Agree interest expressly, and whether it is paid, waived, or traded for a forward term.
[ ] Address the audit cost, and calculate whether the shifting threshold is met on the agreed findings alone or only on the claimed ones.
[ ] Consider whether any part of the settlement should be characterised as a prospective rate adjustment rather than historic recovery, which can be easier for a licensee to approve internally.

Forward terms — the part that matters

[ ] Agree the methodology change in writing for each interpretive finding, with effect from a stated date.
[ ] Agree the product mapping going forward, listing the products now in the base.
[ ] Agree the entity list going forward.
[ ] Agree the deduction categories permitted going forward, and delete the ones that were never in the licence.
[ ] Agree the apportionment methodology for bundles expressly, with a worked example annexed.
[ ] Agree an improved statement format — gross, deductions by category, net, rate, royalty — so the calculation is visible in future.
[ ] Agree a notification obligation for new products and new entities.
[ ] Agree an annual certification by an officer of the licensee.
[ ] Agree a follow-up review at a stated interval to confirm the changes were implemented.
[ ] Reset the audit clock, or expressly preserve the right to audit the periods not covered.

Release scope

[ ] Define the release by period and by subject matter, and resist a general release of all claims.
[ ] Exclude from the release any matter not within the audit scope, particularly infringement outside the licence.
[ ] Exclude fraud and deliberate concealment.
[ ] Confirm the release does not extend to entities that were never audited.
[ ] Confirm the release does not waive the licensor's rights on the go-forward methodology.
[ ] Check the release language against the licensee's group structure so it does not sweep in unintended parties.

If it will not settle

[ ] Assess the arithmetic of proceeding honestly — the cost of reaching trial routinely exceeds the disputed sum.
[ ] Confirm the dispute resolution route the clause requires, since audit disputes often go to expert determination rather than to court.
[ ] Confirm the limitation position on each period as at the intended filing date.
[ ] Assess the discovery exposure on both sides, and note that discovery into the licensee's financial systems is frequently the reason a licensee settles.
[ ] Secure the auditor's availability as an expert and confirm the working papers support the findings.
[ ] Model the counterclaim risk, including validity challenge and termination consequences.
[ ] Confirm that terminating the licence is genuinely in the licensor's interest before threatening it, since a terminated licence produces no royalties at all.

Gate 8. A settlement is documented with a defined release, an agreed payment, and — critically — written forward terms covering mapping, entities, deductions, apportionment, statement format, notification, and certification. If no settlement, the litigation arithmetic has been modelled and the limitation position confirmed.

Phase 9 — Remediate and feed the lessons back

This is the phase that gets skipped, and it produces more value than the recovery.

Implementation

[ ] Diary the follow-up review agreed in the settlement and run it.
[ ] Check the first two statements after settlement against the agreed methodology, line by line.
[ ] Confirm the new statement format is actually being used.
[ ] Confirm the notification obligation is being honoured when new products launch.
[ ] Confirm the annual certification arrives.
[ ] Record any drift immediately rather than at the next audit.

Portfolio

[ ] Apply the desk review to every other licence for the same error categories, since a deduction error at one licensee is usually present at three.
[ ] Where the same interpretive gap exists in another licence, raise it prospectively rather than waiting for an audit.
[ ] Update the portfolio ranking with what the audit revealed about the indicators that predicted it.
[ ] Schedule the next audit in the rotation, and communicate the rotation to licensees so that an audit is routine rather than an accusation.

Template

[ ] Rewrite the records definition in the template to reach system extracts, product master data, customer and distributor agreements, and the workings behind the calculation.
[ ] Extend the template look-back to match the limitation period.
[ ] Set the cost-shifting threshold at five per cent or lower.
[ ] Delete any acceptance or deemed-approval clause from the template.
[ ] Add the reporting format specification as a schedule.
[ ] Add the new product and new entity notification obligation.
[ ] Add the annual certification.
[ ] Add express language on bundle apportionment, currency conversion, and permitted deductions, closing the gaps this audit exposed.
[ ] Add express survival of the audit right after termination.
[ ] Record the changes and the reason for each, so that the next lawyer to negotiate the template knows which terms are load-bearing.

Renewals

[ ] Diary every licence renewal date, since renewal is the only moment these terms improve without being paid for.
[ ] Lead renewal discussions with the records definition, framed as clarification.
[ ] Prioritise removing any acceptance clause, which is the highest-value single change available.
[ ] Prioritise the reporting format, which prevents most future disputes by making the calculation visible.

Gate 9. The settlement terms are implemented and verified against two subsequent statements, the portfolio has been re-screened for the same error categories, the template is updated, and the renewal diary is set.

The licensee's parallel checklist

A licensee receiving audit notice should work the same ground from the other side, and should start before the auditor arrives.

On receipt of notice

[ ] Confirm the notice is valid — right party, right form, right period, within the frequency limit.
[ ] Confirm the auditor meets the clause's definition and check for conflicts.
[ ] Confirm the periods sought are within the contractual look-back.
[ ] Confirm any confidentiality undertakings required have been given before access is granted.
[ ] Diary the audit window and any contractual deadline for findings.

Before fieldwork

[ ] Run the calculation yourself first, for the full audited period, without assuming the historic method is right.
[ ] Re-read the licence definitions with fresh eyes, particularly Licensed Product, Net Sales, and the permitted deduction list.
[ ] Identify any deduction category applied that does not appear in the licence, and price the exposure before the auditor finds it.
[ ] Identify any product, entity, territory, or channel not in the base, and form a documented view on why.
[ ] Assemble the documentation supporting each deduction category now, since assembling it under time pressure produces gaps that read as concealment.
[ ] Take advice on any finding you expect and cannot defend, and decide whether to raise it first.

During fieldwork

[ ] Route all requests through a single named contact.
[ ] Log every request and every response, with dates.
[ ] Answer within the records definition and object in writing, with the contractual basis, where a request exceeds it — but weigh the cost of an obstruction narrative.
[ ] Do not volunteer material outside the licensed relationship.
[ ] Brief every person the auditor will speak to, and instruct them to answer accurately, briefly, and only within their knowledge.
[ ] Keep the commercial relationship holder informed and out of the fieldwork.

On the draft report

[ ] Respond finding by finding, with documentation, rather than globally.
[ ] Separate arithmetic errors, which should be conceded promptly, from interpretive differences, which should be argued.
[ ] Test the methodology — sampling basis, extrapolation, population definition — since methodology is the most reliable defence.
[ ] Assert limitation and any acceptance clause early, since they may dispose of most of the claim.
[ ] Assemble the course-of-dealing record: statements provided in the same form, received without query, for years.
[ ] Take advice on contra proferentem where the licensor drafted the ambiguous term.

On settlement

[ ] Trade historic recovery against forward clarity, which is usually a good trade for a licensee that wants certainty.
[ ] Insist that the forward methodology be documented, since an undocumented change is a future dispute.
[ ] Seek the broadest defensible release for the audited periods.
[ ] Fix the underlying process — the mapping, the review, the ownership — because the next audit is coming and the same errors will be found again.
[ ] Assign ownership of the royalty calculation to a named person with a documented annual review, cross-referring to What You Actually Own.

Key Authorities at a Glance

Royalty audits are contract disputes, and the governing authorities are mostly the ordinary law of contract interpretation, limitation, and accounting for licensed rights. A licensor or licensee working this checklist should understand where the reported law actually bites.

Licence interpretation and the scope of the grant. The definitions do the work. Where a licence's product or field definition is ambiguous, courts construe it as they would any commercial contract, and the drafting party carries the risk. On the interaction between a licence grant and the underlying statutory right, see 35 U.S.C. § 261 on assignment and licensing of patents and 17 U.S.C. § 204 on transfers of copyright ownership. The exhaustion boundary — which determines whether a downstream sale is capable of bearing a further royalty at all — was reset in Impression Products, Inc. v. Lexmark International, Inc. and, for the international dimension in copyright, in Kirtsaeng v. John Wiley & Sons, Inc..

Royalty obligations and their limits. A licensor cannot extend royalty obligations beyond the term of the patent: Brulotte v. Thys Co., reaffirmed with evident reluctance in Kimble v. Marvel Entertainment, LLC. Hybrid arrangements combining patent and know-how survive if properly structured, following Aronson v. Quick Point Pencil Co.. Where a licence covers a portfolio and the audit turns on which rights are live, the term rules matter — see 35 U.S.C. § 154.

Challenges by the licensee. A licensee is not estopped from challenging validity: Lear, Inc. v. Adkins. A licensee in good standing may bring declaratory judgment without breaching: MedImmune, Inc. v. Genentech, Inc., with the standard applied in MedImmune replacing the earlier reasonable-apprehension test discussed in SanDisk Corp. v. STMicroelectronics, Inc.. The declaratory judgment jurisdiction itself sits in 28 U.S.C. § 2201.

Damages and the royalty base. Where an audit becomes an infringement claim, the reasonable royalty framework applies: 35 U.S.C. § 284, the Georgia-Pacific factors from Georgia-Pacific Corp. v. United States Plywood Corp., and the apportionment discipline in LaserDynamics, Inc. v. Quanta Computer, Inc., VirnetX, Inc. v. Cisco Systems, Inc., and Ericsson, Inc. v. D-Link Systems, Inc.. The entire market value rule and its limits in Uniloc USA, Inc. v. Microsoft Corp. bear directly on bundle apportionment arguments. Marking and notice under 35 U.S.C. § 287 can cut off pre-suit recovery entirely, as in Arctic Cat Inc. v. Bombardier Recreational Products Inc..

Trademark licences and accounting. For a mark licence, the recovery framework is 15 U.S.C. § 1117, and the accounting for profits analysis was clarified in Romag Fasteners, Inc. v. Fossil, Inc.. Quality control obligations bear on whether the licence survives at all — see Barcamerica International USA Trust v. Tyfield Importers, Inc. and the naked licensing analysis discussed in Naked Licensing. Registration and incontestability under 15 U.S.C. § 1065 affect what the licensor is actually licensing.

Copyright royalties and statutory rates. Where the licence sits alongside a statutory licence, the rate-setting machinery in 17 U.S.C. § 115 and 17 U.S.C. § 114 can supply a benchmark, and the termination provisions in 17 U.S.C. § 203 can affect which periods a licence covers at all — a point litigated in Mills Music, Inc. v. Snyder. See also Copyright Termination.

Trade secret and know-how components. Hybrid licences with a know-how component engage 18 U.S.C. § 1836 where misuse is alleged, and the reasonable-measures requirement discussed in Rockwell Graphic Systems, Inc. v. DEV Industries, Inc. affects whether the licensed know-how retains protection at all.

Contract, limitation, and accounting. The limitation period is jurisdictional and contractual, and the interaction between a contractual look-back and a statutory limitation period is the first thing to check. Where a licensee argues that the licensor's silence over years bars the claim, the arguments are waiver, estoppel, and course of dealing under UCC § 1-303 and its common law analogues. On document production and the scope of discovery if the matter proceeds, see Fed. R. Civ. P. 26 and Fed. R. Civ. P. 34, and on expert accounting evidence, Fed. R. Evid. 702 and Daubert v. Merrell Dow Pharmaceuticals, Inc.. Summaries of voluminous records are admissible under Fed. R. Evid. 1006, which is how audit findings usually reach a trier of fact.

Tax and withholding. Cross-border royalty flows engage withholding, treaty relief, and transfer pricing — see 26 U.S.C. § 482 and 26 C.F.R. § 1.482-4 — and a licensee's withholding deduction is a recurring audit finding where the licence is silent.

| Authority | What it governs | Where it bites in an audit | | --- | --- | --- | | 35 U.S.C. § 261 | Patent assignment and licensing | Who may exercise the audit right after an assignment | | 17 U.S.C. § 204 | Copyright transfers in writing | Whether an oral variation of methodology binds | | Brulotte v. Thys Co. | Post-expiry patent royalties | Periods after patent expiry are not recoverable | | Kimble v. Marvel Entertainment, LLC | Reaffirming Brulotte | Structuring hybrid royalties to survive | | Aronson v. Quick Point Pencil Co. | Know-how royalties after refusal | Hybrid licences keep running | | Lear, Inc. v. Adkins | Licensee estoppel abolished | The validity counterclaim risk | | MedImmune, Inc. v. Genentech, Inc. | DJ without breach | Licensee can sue while still paying | | Impression Products v. Lexmark | Patent exhaustion | Whether downstream sales bear royalty | | Kirtsaeng v. John Wiley & Sons | International copyright exhaustion | Grey-market units in the base | | 35 U.S.C. § 284 | Reasonable royalty damages | The fallback if the licence fails | | Georgia-Pacific v. U.S. Plywood | Royalty rate factors | Benchmarking a disputed rate | | LaserDynamics v. Quanta | Apportionment | Bundle and platform allocation | | Uniloc USA v. Microsoft | Entire market value rule | Base definition arguments | | 35 U.S.C. § 287 | Marking and notice | Pre-notice periods cut off | | 15 U.S.C. § 1117 | Trademark recovery | Accounting for profits on a mark licence | | Romag Fasteners v. Fossil | Willfulness and profits | Whether intent gates the accounting | | 17 U.S.C. § 115 | Mechanical licence rates | Statutory benchmark for disputed rates | | 18 U.S.C. § 1836 | Trade secret civil action | Know-how component of a hybrid licence | | Fed. R. Civ. P. 34 | Document production | Records the audit clause could not reach | | Fed. R. Evid. 1006 | Summaries of voluminous records | How audit findings are admitted | | 26 U.S.C. § 482 | Transfer pricing | Intra-group base and withholding findings |