Who actually pays a tariff?

By the Business News Analysis desk · Published September 29, 2026 · Updated October 6, 2026

A tariff is paid at the border by the importer, but the cost can land on consumers, businesses or foreign exporters. Here is how tariffs work and what research on recent US tariffs found.

Tariffs are back at the center of economic policy debates, and one question comes up again and again: who pays? The short legal answer is simple. The economic answer, which is the one that matters for prices and profits, depends on the product, the market and how long the tariff lasts.

How a tariff is collected

A tariff, also called a duty, is a tax on imported goods. In the United States, it is collected by U.S. Customs and Border Protection (CBP) when goods enter the country. The party legally responsible for paying it is the importer of record, usually the US company bringing the goods in, or a customs broker acting for it. The foreign exporter does not send a payment to the US Treasury.

Duty rates are listed in the Harmonized Tariff Schedule of the United States, which classifies products in detail. Most duties are charged as a percentage of the goods' customs value; some are charged per unit. On top of normal rates, the government can impose additional tariffs under specific laws, for example Section 232 (national security) or Section 301 (unfair trade practices) of US trade law, and those can apply to particular products or countries.

Where the cost ends up

Economists distinguish between who writes the check and who bears the burden, known as the incidence of a tax. The importer pays the duty, but it then has three broad options:

Pass it on to its customers through higher prices, so that businesses further down the chain and ultimately consumers pay more.
Absorb it through lower profit margins.
Push it back onto the foreign supplier by negotiating a lower pre-tariff price, so the exporter effectively pays part of it.

Which happens depends on bargaining power. If buyers can easily switch to a supplier in a country without the tariff, or to a domestic producer, the foreign exporter may have to cut its price. If there are few alternatives, and demand does not fall much when prices rise, more of the cost tends to pass through to buyers.

What research on recent US tariffs found

The tariffs the United States imposed in 2018 and 2019, including those on steel, aluminum, washing machines, solar panels and a wide range of Chinese goods, gave economists a large natural experiment. Several widely cited studies using detailed import data, including work by economists at the Federal Reserve Bank of New York, Princeton and Columbia, and a separate team at UCLA, Yale and other universities, found that the prices US importers paid rose by close to the full amount of the tariffs. In other words, foreign exporters on average did not cut their prices much, and the cost was borne mostly within the United States, by importers, the businesses that buy from them, and consumers.

Later research suggested the picture was more mixed in some sectors and over longer periods, with some costs absorbed by retailers' margins rather than showing up fully in shelf prices, and with supply chains shifting some production to other countries. But the central finding, that US buyers bore most of the direct cost, has held up across studies.

Effects beyond the price tag

Tariffs affect more than the price of the taxed good:

Domestic competitors can raise their prices too, because the imported alternative is now more expensive. That helps protected producers but costs their customers.
Manufacturers that use imported inputs, such as steel or components, face higher costs, which can make their own products less competitive.
Retaliation by trading partners can hit exporters. After 2018, US agricultural exports were a major target of retaliatory tariffs, and the federal government made large payments to farmers to offset losses.
Trade diversion: importers may switch to suppliers in countries not subject to the tariff, which can reduce imports from the targeted country without reducing total imports much.
Government revenue rises, which is a real fiscal effect, but that revenue comes from US importers.

The statutes behind an extra tariff

The ordinary duty rates live in the Harmonized Tariff Schedule maintained by the U.S. International Trade Commission. Additional tariffs are usually imposed under a named statute, and the statute tells you who decides and on what finding.

Section 232 of the Trade Expansion Act of 1962, codified at 19 U.S.C. § 1862, is the national-security route. The Secretary of Commerce investigates the effect of imports of an article on national security, on a request, on an application, or on the Secretary's own motion, and consults the Secretary of Defense. If the report finds that the article is being imported in quantities or circumstances that threaten to impair national security, the President decides whether to concur. If the President concurs, the President determines the action needed to adjust those imports and must implement it within 15 days of that determination.

Section 301 of the Trade Act of 1974, at 19 U.S.C. § 2411, is the unfair-trade route. The U.S. Trade Representative, subject to any specific direction from the President, is required to act when a determination finds that US rights under a trade agreement are being denied, or that a foreign act, policy, or practice violates a trade agreement or is unjustifiable and burdens or restricts US commerce, with exceptions written into the statute. A separate provision covers acts the Trade Representative finds unreasonable or discriminatory. Among the authorized actions, subsection (c) lets the Trade Representative impose duties or other import restrictions on the goods of the foreign country. The legal payer is still the importer of record. The statute changes the rate. It does not send the bill to the foreign exporter.

What one widely cited study measured

Mary Amiti, Stephen Redding, and David Weinstein, writing in the Journal of Economic Perspectives in 2019, looked at the tariffs the United States introduced during 2018. Their abstract reports complete pass-through of those tariffs into the domestic prices of imported goods, so that the full incidence, as of the period they studied, fell on domestic consumers and importers. They estimated a reduction in aggregate US real income of $1.4 billion per month by the end of 2018. They also reported higher prices for intermediate and final goods, changes in supply chains, and fewer imported varieties, and they found a similar pattern in countries that retaliated. That $1.4 billion figure is a 2018 result for the 2018 tariffs. It is not a measure of later tariff rounds, and it is an estimate of real-income loss, not a count of customs revenue.

Pablo Fajgelbaum, Pinelopi Goldberg, Patrick Kennedy, and Amit Khandelwal studied the same 2018 increase, and the retaliation that followed, in the Quarterly Journal of Economics in 2020. Their abstract reports that prices of the imports targeted by the tariffs did not fall, which implies complete pass-through into duty-inclusive prices. They estimated losses to US consumers and firms that buy imports of $51 billion, or 0.27 percent of GDP. After counting tariff revenue and gains to domestic producers inside a general-equilibrium model, they estimated an aggregate real-income loss of $7.2 billion, or 0.04 percent of GDP. Those are short-run estimates for 2018. They are not a running tally of later tariff rounds, and they are not a measure of who signed the customs form. The form is still the importer's.

How to read tariff news

Look at what is covered. A headline rate may apply to a narrow list of products, or have exclusions and phase-in dates.
Consider alternatives. The easier it is to source elsewhere, the more of the cost may fall on the foreign supplier, and the more trade will shift rather than shrink.
Watch timing. Companies often import ahead of a tariff taking effect, which distorts trade data for a few months before and after.
Separate the legal payer from the economic burden. "The importer pays" and "consumers pay" can both be true at once.

The bottom line

Tariffs are paid to US Customs by importers. How much of that cost ends up with consumers, US businesses or foreign exporters depends on competition and alternatives, but the best evidence from recent US tariffs is that most of the burden stayed at home.