Plain English
A net profit indicator measures how much profit a company makes relative to its sales, costs or assets. In transfer pricing, it is used to compare the tested party's result to independent companies doing similar things.
Technical definition
A net profit indicator is a measure of net profit relative to a base such as sales, costs or assets. Common indicators include the operating margin, return on assets, return on sales and Berry ratio. It is used under the transactional net margin method to determine whether the profits realised in a controlled transaction are arm's length.
Why it matters
The choice of net profit indicator drives the outcome of a TNMM analysis. The wrong base can produce a misleading range and an indefensible price.
How it works in practice
- 01Identify the tested party and its financial profile.
- 02Choose a profit indicator that reflects the value creation of the tested party.
- 03Common choices: operating margin/sales, full-cost mark-up/costs, return on assets/assets.
- 04Build a comparable set using the same profit indicator.
- 05Apply the indicator to the controlled base to derive the arm's length range.
Worked example
Distribution entity
A tested distributor has net operating profit of EUR 2m on sales of EUR 100m. The operating margin is 2%. Comparable limited-risk distributors earn operating margins of 1.5% to 3.0%. The controlled result falls within the range, supporting the arm's length nature of the buy-in price.
Common mistakes
- Using a profit indicator that does not match the tested party's functions.
- Mixing accounting standards without adjustment.
- Using net profit after interest or tax instead of operating profit.
- Ignoring differences in asset intensity.
Audit red flags
- Profit indicator changes year to year to force a result inside the range.
- Indicator base includes non-arm's length costs.
- No explanation for why the chosen indicator is most reliable.
Documentation & data
Documents to hold
- Profit indicator policy.
- Reconciliation of financials to the indicator base.
- Comparable profit indicator study.
- Working papers explaining the choice of indicator.
Data you need
- Operating profit of tested party.
- Sales, cost or asset base.
- Comparable profit indicators.
- Accounting policy notes.
Who owns this internally: Transfer pricing team and economists.
Jurisdiction notes
- OECD
- The TNMM and net profit indicators are described in Chapter II of the OECD Guidelines.
- United States
- Reg. §1.482-5 describes profit level indicators for the comparable profits method.
Notes by role
CFOs & finance leaders
Make sure your statutory operating profit reconciles to the TP operating profit used in the indicator.
Frequently asked
- What is the most common net profit indicator?
- Operating margin on sales is the most common for distribution; full-cost mark-up is common for contract manufacturers; return on assets is used for asset-heavy functions.
Sources & status
- Primary source
OECD Transfer Pricing Guidelines, Chapter II
OECD, 2022
Reference material only, not advice on a specific fact pattern. Reviewed 2026-06-30.
Careers
How this shows up in the job
Interviewers often ask you to compare profit indicators. Know when to use operating margin versus Berry ratio versus return on assets.
Careers in transfer pricing