Do I need resale price & cost plus methods?

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Answer

Resale price suits a distributor that adds no significant value; cost plus suits a manufacturer or service provider under low risk. The requirement usually turns on whether a transaction happened at all, not on how large it was.

Whether you need it

Resale price suits a distributor that adds no significant value; cost plus suits a manufacturer or service provider under low risk. Both require the tested party's accounts to be classified the same way as the comparables'.

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When the rule breaks

The resale price and cost plus methods test a gross margin, which makes them sensitive to something most groups do not control: consistent accounting classification between cost of sales and operating expense.

Do I need resale price & cost plus methods?
ItemAmount
RevenueC$36,000,000
Operating margin reported1%
Operating profit reportedC$360,000
Assumed tested range5% – 9%
Profit at the bottom of the rangeC$1,800,000
Potential adjustmentC$1,440,000

A margin below the range invites an adjustment of C$1,440,000 in this jurisdiction — and unless the other country makes a corresponding adjustment, that profit is taxed twice. The documentation is what turns this into a conversation rather than an assessment.

Treat these numbers as a worked example rather than advice — they exist to make the mechanics visible, and the rates and thresholds are assumed for the illustration. For a real filing, we verify each figure with the authority that publishes it, for your year.

Your next step

The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on Resale price & cost plus methods. Send us the facts and we will tell you what has to be filed and what it costs.

Reviewed for accuracy for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. General information, not advice for your circumstances — call our 24-hour helpline to discuss your own position.

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The search that brings most people to this page is international tax accountant. It is answered here for resale price & cost plus methods: what creates the obligation, which filings discharge it, and the fee agreed before the work starts.

Files that look like this one

Case study 1

Restating a distributor's accounts to its comparables' classification

A distributor sat below its gross margin range while its operating result looked ordinary. The cause was inbound freight and warehousing in cost of sales, where most of the comparable companies reported them as operating expenses. We rebuilt the tested party's cost of sales on the comparables' basis using the underlying ledger detail. The engagement produced a restated gross margin, a reconciliation from the statutory accounts to the tested figures, and a documented classification review, so the margin comparison rested on a stated basis instead of on whichever presentation the accounts happened to use.

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Case study 2

Defining the cost base for an intercompany service centre

A support centre charged its affiliates a mark-up on costs, but the base had grown to include expenses incurred purely on the affiliates' behalf and an unexplained share of group overhead. We separated the costs of performing the service from the pass-through items, set out a written allocation basis for shared overhead, and applied the definition across the period under review. The work produced a stated cost base, restated mark-up figures for each year on that consistent base, and a policy document so the composition would not drift again in later periods.

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Case study 3

Moving from a gross margin method to an operating margin test

A group had tested its distributor on gross margin for years against comparables whose disclosure did not reveal what their cost of sales contained. Neither side could be restated with confidence. We documented the attempt, quantified how much the classification uncertainty could move the comparison, and selected an operating margin test instead. The engagement produced a reasoned method change with the earlier analysis retained in the file, and a range built on an indicator the available financial data could actually support, rather than one that depended on disclosure nobody had.

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Case study 4

Aligning a manufacturer's chart of accounts with its comparable set

A contract manufacturer earning a cost plus return kept its accounts in a format inherited from its parent, so production overheads, quality control and engineering support were spread across categories in a way no comparable company used. We mapped each account to the classification the comparables applied and agreed the mapping with the finance team. The work produced a documented account mapping, a restated cost base and gross margin for the years under review, and a reporting change so future accounts would produce the tested figures directly.

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Case study 5

Excluding pass-through recharges from a cost plus arrangement

A service provider recharged travel and third-party licence fees to affiliates and applied its mark-up to the whole amount. The recharges were incurred on the affiliates' instruction and carried no work or risk. We reviewed each category of recharge for who instructed it, who bore the risk and what the provider added. The engagement produced a written position on which costs carry a mark-up and which are recharged at cost, a restated charge for the period, and revised intercompany invoicing that showed the two elements separately.

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Case study 6

Answering a classification query raised on a distributor's gross margin

A review queried why a distributor's gross margin differed from the comparables cited in its own study, and the study had said nothing about accounting classification. We reconciled the tested party's cost of sales line by line to the categories the comparable companies reported, identified the items causing the difference, and showed the comparison on both bases. The work produced a classification reconciliation appended to the existing study, which allowed the discussion to move onto the pricing itself rather than onto whether the two sets of margins measured the same thing.

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Case study 7

Documentation Built to the US Standard

The US requirements differ from the OECD-aligned ones in what has to exist at the time of filing, and a file prepared for one regime can leave the other unprotected. The engagement builds to whichever governs.

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Case study 8

A Canadian Working in the US on a Work Visa

Immigration status and tax residence are different tests, and a visa says nothing about which country taxes the salary. The file fixes residence, applies the employment article, and sequences the two returns so the credit lands where it is usable.

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Questions that come up on Resale price & cost plus methods

Should a distributor be tested on gross margin or operating margin?

It depends on how much you trust the accounting. The resale price method tests a gross margin, which is closer to the transaction and therefore attractive in principle. It is also fragile, because the gross margin depends entirely on where costs sit: warehousing, inbound freight, warranty and distribution staff can appear in cost of sales for one company and in operating expenses for another. If your tested party classifies differently from the comparables and you cannot restate either, the gross margin comparison is measuring bookkeeping rather than pricing, and an operating margin is the more reliable test.

Our comparables put warehousing in operating costs and we put it in cost of sales?

Then the gross margins are not comparable as they stand, and the difference can be larger than the margin you are testing. There are three ways out. Restate your own accounts to the comparables' basis, if the underlying detail exists. Restate the comparables, if their disclosure is good enough to allow it — often it is not. Or move to a method that tests an operating margin, where the classification difference washes out because both cost categories sit above the line. Whichever route you take, record the classification review itself, because a reviewer will want to see that the question was asked.

Is cost plus the right method for our intercompany service centre?

It frequently is, where the centre performs a defined service under instruction, takes no significant risk and owns nothing valuable. The method suits exactly that profile: a manufacturer or service provider operating in low-risk conditions, earning a mark-up on its costs. Two things then decide whether it holds. The cost base has to be defined and consistently applied, so that what sits inside it does not drift from year to year. And the comparables' cost bases have to be built the same way, since a mark-up quoted on a different base is a different mark-up.

Which costs belong in the cost base for a cost plus mark-up?

The costs of performing the service, defined once and applied consistently. The questions that actually arise are about the edges: whether pass-through expenses incurred on someone else's behalf belong in the base at all, how shared overhead is allocated to the activity, and whether costs recharged from elsewhere in the group go in gross or net. There is no single answer, but there is a requirement: state what the base contains, apply the same definition to the comparables so far as their disclosure allows, and keep the definition stable. A base that changes composition makes the mark-up series meaningless.

Can I use the resale price method if our distributor also does marketing?

It becomes harder as the distributor's own contribution grows. The method suits a reseller that adds no significant value: it buys, holds briefly and sells on. Where the entity is also building the brand in its market, funding campaigns and taking decisions about how the product is positioned, it is doing something the comparables may not do, and the gross margin has to cover activities that differ between them. At that point either the comparable set has to be narrowed to similarly active distributors, or the analysis is better run on an operating margin that captures the marketing spend.

Why did our gross margin test fail when the operating margin worked?

Usually because of classification rather than pricing. A gross margin is the difference between sales and cost of sales, so every cost that sits on one side of that line for you and the other side for a comparable shifts the comparison. Operating margin sits below both categories, so those differences cancel out. If your operating result is inside the range and your gross result is not, the first thing to check is the composition of cost of sales on each side. Keep that reconciliation in the file, because it also explains the method you chose.

What is double taxation?

Double taxation means the same income being taxed by two authorities. It comes in two forms: juridical, where two countries each tax one person on one amount, and economic, where two different people are taxed on the same underlying profit — a company on its earnings and a shareholder on the dividend paid out of them. Relief comes from a treaty, a foreign tax credit, or an exemption, and which one applies depends on the income type. How to avoid double taxation sets out the routes.

What happens if I have not filed for several years?

Missed years are handled as one package, not one at a time, because the route chosen for the first year determines the relief available for the rest. Each country has a disclosure or relief programme with its own conditions, and entering the right one — before the authority contacts you — is usually what keeps penalties down. Filing quietly outside a programme forfeits that protection. See catching up on missed returns.

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