Is the first sale rule still worth using in 2026?

Last reviewed June 2026. Customs rules on this are still evolving — the regulations and court decisions are changing fast. We keep this post updated as the picture develops; for your specific situation, ask us.

First sale valuation is one of the more powerful, and more technical, ways to legally lower your duty bill. With tariffs where they are, the savings can be significant. But two things changed the calculus in 2026, so if you use first sale (or could), it’s worth a fresh look.

What first sale is

In a typical import, you pay duty on what you paid for the goods. But many goods pass through a middleman: a factory sells to a trading company, which sells to you. In qualifying multi-tier transactions, the “first sale” rule lets duty be assessed on the first sale in that chain (the factory-to-middleman price), which is lower than what you paid, so your dutiable value drops, and so does your duty.

At a 25%+ effective tariff, shaving the dutiable value can be real money on every shipment.

Why it’s more powerful, and more scrutinized, right now

• More powerful: the higher the tariff, the more a lower dutiable value saves you. 2026 tariffs make first sale worth more than it was a few years ago.
• More scrutinized: CBP has been enforcing the documentation requirements more strictly, and it’s under a legislative threat, with a bill introduced to eliminate the principle entirely. So the savings are real, but the ground is shifting.

(Confirm the current legal status before building a strategy around it — this is actively contested.)

The catch: it lives or dies on documentation

First sale isn’t a checkbox; it’s a valuation position you have to be able to prove. That means a clean paper trail showing the first sale was a bona fide, arm’s-length transaction for export to the U.S. Done sloppily, it’s a penalty waiting to happen. Done properly, it holds up. This is exactly the kind of thing where a broker who works valuation, not just files entries, earns their keep.

Should you use it?

First sale tends to be worth exploring when:

• Your goods move through a middleman (trading company / vendor) before reaching you,
• Your duty rates are high enough that a lower dutiable value moves the needle,
• You can get the documentation from your supply chain to support it.

If that describes you and nobody has looked at first sale for your imports, you may be leaving money on the table, or you may be exposed if it’s being claimed without the paperwork to back it.

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First sale is one of the levers we check in a duty-savings review, alongside classification, FTAs, and drawback. If your goods pass through a middleman and you’re paying high duties, it’s worth a careful look at whether first sale applies, and whether your documentation would survive scrutiny.

Sources & further reading

• CBP — CROSS customs rulings database
• Congress.gov — track legislation
• CBP — Trade