Plain English
If two unrelated companies trade with each other, they sign a contract. Related companies should do the same — an intercompany agreement records what each entity actually does, who bears which risks, and how the price is calculated, so that the paperwork matches reality. Without one, a tax authority has nothing to test the actual conduct against, and inconsistencies between agreement, invoice and ledger become the first thing an auditor pulls on.
Technical definition
An intercompany agreement is a legally binding contract between associated enterprises documenting the terms of a controlled transaction — scope of services or goods, pricing mechanism, payment terms, IP ownership, termination rights and liability allocation — and forms part of the evidentiary basis for the accurate delineation of the transaction under Chapter I of the OECD Guidelines.
Why it matters
Tax authorities increasingly test whether contractual terms match actual conduct; a missing, outdated or generic agreement undermines the credibility of the entire transfer pricing position, even if the pricing itself is arm's length. It is also frequently the first document requested at the start of a transfer pricing audit.
How it works in practice
- 01Identify every material intercompany transaction flow requiring a written agreement (services, goods, licensing, financing).
- 02Draft or update the agreement to reflect actual functions, assets and risks, not a boilerplate template.
- 03Align pricing terms in the agreement with the methodology used in the benchmarking study.
- 04Have the agreement executed by authorized signatories in each jurisdiction, respecting local legal formalities.
- 05Review and refresh agreements periodically, and whenever the underlying business model or entity roles change.
Worked example
Agreement drafted years after conduct began
A UK shared service centre has been invoicing group entities for IT support since 2019, but no written agreement was ever signed. During a 2025 audit, the tax authority asks for the contract governing the arrangement and finds only a 2024 draft, backdated in name but executed after the fact. Because the agreement post-dates several years of conduct, the auditor treats the actual invoicing and cost allocation pattern as the primary evidence and disregards the contract's stated terms, forcing the group to justify pricing purely from ledger and functional evidence rather than a clean legal document.
Common mistakes
- Using a single generic template across dissimilar transaction types.
- Never updating agreements after a business reorganization or entity role change.
- Pricing terms in the agreement that do not match what is actually invoiced.
- Missing signatures or execution dates that create doubt about when terms took effect.
Audit red flags
- Agreements dated after the conduct they purport to govern.
- No agreement at all for a material, recurring intercompany flow.
- Agreement terms directly contradicted by invoice descriptions or ledger postings.
Documentation & data
Documents to hold
- Signed, dated intercompany agreement for each material transaction category.
- Central register mapping agreements to entities, transaction types and renewal dates.
- Amendment log recording changes and their effective dates.
Data you need
- Inventory of all current intercompany transaction flows.
- Legal entity signing authority matrix.
- Prior audit findings on contractual gaps, if any.
Who owns this internally: Group tax and legal jointly, with input from the business owner of each transaction flow.
Jurisdiction notes
- Germany
- Tax authorities routinely request intercompany agreements at the outset of an audit and treat gaps as a documentation deficiency.
- OECD
- Chapter I guidance on accurate delineation treats the actual conduct of the parties as taking precedence over contractual terms where the two diverge.
Notes by role
Advisors & consultants
Draft agreements to mirror the functional analysis language used in the local file — inconsistent wording between the two is an easy audit finding.
In-house tax teams
Maintain a single master register of agreements; teams that manage them per-entity in local folders routinely lose track of renewal dates.
Frequently asked
- Can an intercompany agreement override actual conduct for tax purposes?
- No. Under OECD Chapter I, where the agreement and the actual conduct of the parties diverge, the conduct governs the transfer pricing analysis.
- Do agreements need to be re-signed every year?
- Not usually — but they should be reviewed whenever pricing methodology, scope or risk allocation changes materially.
Sources & status
- Primary source
OECD Transfer Pricing Guidelines, Chapter I (accurate delineation of the actual transaction)
OECD, 2022
- Primary source
OECD Transfer Pricing Guidelines, Chapter V (documentation)
OECD, 2022
Reference material only, not advice on a specific fact pattern. Reviewed 2026-06-30.
Careers
How this shows up in the job
Being able to draft or review an intercompany agreement, not just a policy memo, is a practical skill advisors are tested on in technical interviews.
Careers in transfer pricing