I thought I knew. Then I followed the money.
THINGS I NEED TO UNDERSTAND • SEPTEMBER 16, 2026
A section where I take something I realized I did not understand well enough, learn it properly, and share what I found.
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I thought I understood tariffs. Honestly, this seemed like one of the easier ones.
A country puts a tariff on goods coming from another country. The other country pays the tariff. The imported product becomes more expensive. Maybe people buy more American-made products instead. That's pretty much how I had it filed away in my head.
Then I tried to answer one ridiculously simple question:
Who actually writes the check?
If the United States puts a tariff on something made in China, does the Chinese manufacturer send money to Washington? Does the Chinese government? Does Walmart? Does the customer?
I realized I didn't actually know. So I followed the money.
Let's make this as simple as possible. Imagine an American company imports a product from China. Its customs value is $100. For our example, let's say the United States imposes a 20 percent tariff on that product.
The shipment arrives at an American port. And here's the first thing I didn't understand:
China doesn't get a bill from the United States government.
The Chinese government doesn't write a check to the U.S. Treasury. The foreign manufacturer generally doesn't send the tariff payment either. The U.S. importer — the American company bringing the product into the country — is responsible for the duty.
On our $100 product, a 20 percent tariff means another $20 is due when it enters the United States. That money is collected by U.S. Customs and Border Protection.
So before we've gotten any further than the port, I already had to change the way I thought about tariffs. When we say America is putting a tariff “on China,” we're describing where the product came from. We're not necessarily describing who sends the money to the U.S. government.
That's the American importer.
But that leads to a much more interesting question.
Our importer now has a product that used to cost $100 to bring into the country and, in this simplified example, now costs $120 before all the other expenses involved in getting it onto a store shelf. Somebody has to deal with that extra $20. But it doesn't necessarily have to be one person.
The American importer could absorb some of it and make less profit. The importer could tell the Chinese manufacturer, “I can't keep buying this from you at $100 anymore,” and negotiate the price down.
A wholesaler could accept a smaller margin. A retailer could absorb some of the increase. The retailer could raise the price. Or some combination of all of those things could happen.
Which means the question “Who pays the tariff?” is actually two different questions.
Who sends the tariff payment to the government? That's relatively straightforward.
Who ultimately bears the economic cost? That's much more complicated.
And those two answers are not necessarily the same.
This was the distinction I had been missing.
Suppose the foreign manufacturer wants badly enough to keep the American customer's business that it cuts the price from $100 to $95. Now the foreign company is bearing part of the economic burden.
Maybe the importer absorbs another few dollars. Maybe the retailer takes a smaller margin. Maybe the price on the shelf still goes up. The cost has been divided.
Or imagine the manufacturer refuses to lower its price. The importer pays the tariff and passes most of that additional expense through the supply chain. Eventually, the customer may see a higher price.
Or the customer may look at that price and say: Nope. I'll buy something else.
Now the tariff has changed not just a price, but a purchasing decision. And perhaps that's exactly what policymakers wanted it to do.
This is where the purpose of a tariff started to come into focus for me. A tariff isn't only about collecting money. It's also designed to change incentives.
If an imported product becomes more expensive, an American-made alternative may become more competitive. An importer might find a supplier in another country. A company might decide to manufacture more of the product in the United States. Consumers might buy less of the tariffed product. Those are all possible responses.
And that helps explain why the effect of a tariff can't be measured simply by looking at the amount collected at Customs. You have to watch what happens afterward. Now we're talking about the actual economic effects.
Fortunately, we don't have to guess. Since 2018, we've had several rounds of American tariffs that economists have been able to study.
The U.S. International Trade Commission examined the tariffs imposed under Sections 232 and 301 beginning in 2018. Its conclusion surprised me. U.S. importers bore nearly the full cost of those tariffs. Import prices rose at about the same rate as the tariffs. In other words, foreign exporters generally did not cut their prices to offset the new duties.
That doesn't mean every American shopper immediately paid the entire tariff. That's another distinction worth making. Researchers who followed those same tariffs all the way into stores found a more complicated picture. Prices at the border rose by nearly the full tariff. Prices on store shelves rose less — which suggests retailers absorbed part of it through smaller margins.
The 2025 tariffs added a new wrinkle. Economists at the Federal Reserve Bank of New York found that foreign exporters did start trimming their prices — a little. By November 2025, they were absorbing about 14 percent of the cost. Across the year, nearly 90 percent of the burden still fell on American firms and consumers.
So the foreign country can pay something. Just not by writing the check.
Timing mattered, too. Federal Reserve researchers found that tariff-related price increases did not appear on store shelves the day a tariff took effect. They built up gradually.
Businesses had inventory purchased before the tariffs. Some absorbed higher costs temporarily. Some delayed price increases because they didn't know whether the tariffs would last.
By December 2025, retail prices for goods imported from China were up about 8.5 percent from a year earlier. Prices for American-made goods were up less than 2 percent.
Here's where the economists don't fully agree. One Federal Reserve Board study estimated that roughly 30 percent of the tariff cost had reached shoppers by the end of 2025. A Dallas Fed analysis published in May 2026 found evidence roughly consistent with full pass-through. Part of that gap is when they measured. Part is what they measured against — the tariff rates that were announced, or the duties that were actually collected. And in mid-2026, other Fed economists said more price increases were still working their way through.
So the simple sentence — “The foreign country pays the tariff.” — doesn't really describe what happens.
But neither does: “The consumer pays every penny of it.”
The real answer travels through a supply chain.
I started with one question: Who pays a tariff? Now I realize that question isn't precise enough. There are two questions.
Who writes the check to the government? The U.S. importer generally does.
And then: Who ultimately bears the cost?
That can be the foreign producer. The American importer. The wholesaler. The retailer. The consumer. Or some combination of them.
And the proportions can change depending on the product, the market, competition, exchange rates, available alternatives and how much leverage each participant has.
That's the piece I didn't understand. A tariff may be imposed on goods from another country. But that doesn't tell you who ultimately pays for it.
You have to follow the money.
Understanding that answer left me with several new questions.
What determines how much of a tariff a business can absorb before it has to raise prices?
When does a foreign manufacturer decide to lower its price rather than risk losing the American market?
How long does it usually take before a tariff imposed at the border becomes visible on a store shelf?
And perhaps the biggest one:
When does a tariff actually succeed in moving production back to the United States — rather than simply moving the supply chain to another country?
When I started, I thought “Who pays a tariff?” had a one-word answer.
It doesn't.
The check is the easy part. The American importer writes it.
Everything after that gets worked out between a factory overseas, a company at the port, a store, and a shopper deciding whether the new price is worth it. The split can change from one product to the next, and from one month to the next. There isn't one percentage you can slap on every product and call it the answer.
That's where the easy explanation fell apart for me. It wasn't wrong so much as it was answering a simpler question than the one that matters.
So if you pick something up off a store shelf and ask me how much of its price is the tariff — and who quietly absorbed the rest before it got there —
“I don’t know.”
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Facts in this piece come from U.S. customs regulations (19 CFR 141.1); the U.S. International Trade Commission’s 2023 report on the Section 232 and 301 tariffs; Cavallo, Gopinath, Neiman and Tang (American Economic Review: Insights, 2021); and 2026 research from the Federal Reserve Board and the Federal Reserve Banks of New York, Dallas and Minneapolis.
First published September 16, 2026. Last updated September 16, 2026.
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