Treas. Reg. 1.482-5: Comparable Profits Method (CPM) and the PLI Menu

Treas. Reg. Section 1.482-5 is the comparable profits method (CPM) section of the section 482 regulations. The method compares the profits of the controlled party in the transaction with the profits of comparable independent parties in comparable transactions — one-sided, on the tested party’s profitability indicator (the PLI) from the regulation’s menu. It is the US workhorse: the method that carries the routine-party pricing where no uncontrolled price exists, and the method the Indian TNMM answers in its own dialect.

Section purpose

In plain English, Section 1.482-5 says: where the transaction cannot be priced on an uncontrolled price or a direct resale margin, the routine party’s return is benchmarked on what an independent party earns for the same kind of contribution. The method prices the routine contribution by reference: the tested party is the party whose intangibles and functions are the least complex in the transaction, the comparison is the tested party’s PLI against the PLI of comparable independent parties performing the same kind of transaction, and the differences that materially affect the PLI are adjusted for.

The operative standard

• One-sided testing, on the least-complex party. The comparison is made with the party whose intangibles and functions are the least complex in the transaction — the routine party, not the valuable one. The method prices the routine contribution by referencing what an independent party earns for it; it does not value the entrepreneurial contribution directly. The tested-party selection is the method’s first decision, and the one the examination re-litigates first.
• A PLI, not a price. The method compares a profitability indicator of the controlled party with the same indicator of the comparable independent parties — the regulation’s menu of six indicators, below — and adjusts the comparables for the differences that materially affect the PLI. The method does not compare prices; it compares the return the economics produce.
• Transaction-comparable data. The comparables are independent transactions of the same or similar kind — a contract manufacturer’s comparable is an independent contract manufacturer running a comparable contract, not just any company in the industry. The transaction basis is the CPM’s structural difference from the TNMM (the company pool) — the split the CPM vs TNMM mapping draws.

The PLI menu

Section 1.482-5(b)(3) lists the indicators the method may use:

PLI	Formula	Typical use
Gross margin	(resale price − purchase cost) ÷ resale price	Resellers, distributors
Net profit margin	Net profit ÷ revenue	General routine service providers
Cost-based mark-up	Gross profit ÷ operating cost	Contract manufacturers, service providers
Selling price to value added	Sales price ÷ (sales price − COGS)	Trading operations
Inventory mark-up	Gross profit ÷ average inventory cost	Inventory-intensive resellers
Other reasonable indicator	Fact-specific	Where none of the above isolates the routine return

The list is a menu, not a ranking: the choice follows the tested party’s economics — the PLI must isolate the routine contribution and be measurable from reliable data, the same discipline the TNMM PLI decision runs on.

Key elements

Element	The content
The tested party	The party whose intangibles and functions are the least complex in the transaction — the routine party
The comparison	The tested party’s PLI against the PLI of comparable independent parties performing the same or similar transaction
The PLI menu	The six Section 1.482-5(b)(3) indicators — the gross margin, the net profit margin, the cost-based mark-up, the selling price to value added, the inventory mark-up, the other reasonable indicator
The adjustments	The comparability adjustments for the differences that materially affect the PLI — the functional, contractual and economic differences, adjusted or the comparables discarded
The order of preference	Ninth in the US order — after the direct-price and cost-based routes, before the other method — the Section 1.482-1 ranking that makes the CPM the method of last resort among the named methods, and the workhorse in practice
The documentation	The tested-party selection, the PLI choice, the transaction comparables, the adjustments — the Section 1.6662-6 content for the method

How it maps to the OECD method set

• The CPM is the TNMM’s cousin. The one structural difference is what is compared with what: the CPM compares the tested party’s PLI with the PLI of independent parties who did the same kind of transaction (transaction comparables); the TNMM compares the tested party’s PLI with the same PLI computed across a pool of comparable companies (company comparables, the IQR range built from the pool’s distribution). The CPM vs TNMM guide is the mapping; the CPM guide carries the US discipline.
• The one-sided testing is the shared logic. The OECD’s TNMM is likewise one-sided on the least-complex party — the tested party selection discipline is the same in both dialects, and the methods overview keeps the two in one comparison.
• The PLI menu is wider than the OECD’s list. The OECD guidelines carry the same core indicators (the gross margin, the net cost plus, the operating margin, the return on capital); the US menu’s trading and inventory indicators are the commodity-specific extensions the CPM guide lists.

Practice notes for the Indian group with a US affiliate

• The TNMM pool is the CPM comparables, in practice. The Indian file’s TNMM analysis — the pool, the PLI, the adjustments, the range — is the CPM answer in the OECD dialect: the same economics, the same tested party, the pool statistics standing in for the transaction comparables. One study, two presentations, the same defence.
• The selection record is the first document read. The tested-party selection (the least-complex analysis, on the facts) is what both examinations re-litigate first — the how to choose a method framework documents the decision the way the Section 1.6662-6 content list asks.
• The GILTI carry-through. For the US parent of the Indian entity, the controlled transactions’ pricing feeds the tested income computation — the US-side consequence of the Indian adjustment, unpriced where the cross-border file ignores it. The US transfer pricing guide carries the interaction.

Related docs

• US transfer pricing — the Section 482 overview
• Treas. Reg. 1.482-1 — the order of preference
• CPM guide — the US method in depth
• CPM vs TNMM — the dialect mapping