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US importers bore almost all the costs of the tariffs examined for 2018–2021, the USITC concluded. But the bill at the border is not the same as the bill at the checkout.
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Who pays when a country imposes import tariffs? The answer starts with the importer, but it does not end there. Businesses can absorb higher costs or pass them on. That distinction is essential to understanding the effects of trade policy.
For the US tariffs that the USITC examined over 2018–2021, import prices including tariffs rose, on average, by almost as much as the tariffs themselves. The costs therefore fell almost entirely on US importers. The report was published in 2023. [1][2]
An importer can pass costs on, but can also accept a lower margin. How the bill is ultimately shared depends, among other things, on competition and the scope to raise prices.
The importer and the consumer are different links in the chain. That distinction is also central to the 2019 analysis by Matthew Higgins, Thomas Klitgaard and Michael Nattinger. Their contribution on the New York Fed website provides additional insight, but does not examine exactly the same period and questions as the later USITC report. [3]
The USITC estimated that the tariffs increased output among US steel and aluminium producers. For businesses using those materials, higher input costs instead reduced production. [1]
Those sector differences make a simple overall judgement difficult. More output in one industry does not automatically mean a gain for the whole economy. The report does not provide a comprehensive assessment of the policy's net economic effect. [2]
The steel and aluminium tariffs took effect under Trump on 23 March 2018. The subsequent research shows how the costs of the measures examined passed through during that period. [2]
The key distinction remains the one between
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Who pays the tariff does not necessarily bear all its ultimate costs. The finding that importers face higher import costs does not establish how much is passed on to retail prices. A business may, for example, reduce its margin or raise its selling price.
A simple worked example illustrates the distinction. If a product costs €100 at import and a €10 tariff is added, import costs total €110. The retail price does not follow directly: margins, other costs and competition also matter. This is a hypothetical example, not a measured price effect.
Assessing new tariffs therefore requires current data and a precise scope: which product, which country and which period? Research covering 2018–2021 provides background, not a ready-made answer for a later measure.