Personal Finance
How the U.S. has used tariffs through history — and why Trump is different
Shipping containers are seen at the Port of Montreal in Montreal, Canada, on Feb. 3, 2025.
Andrej Ivanov | Afp | Getty Images
President Donald Trump imposed broad tariffs on China on Tuesday, while tariff threats hang over other major trading partners like Canada, the European Union and Mexico.
That may lead some to wonder: How have tariffs been wielded through U.S. history, and is Trump unique in his use of them?
The ‘three Rs’ of tariffs
The U.S. has used tariffs since its founding in the 18th century.
In fact, the Tariff Act of 1789 was among the first bills ever passed by Congress.
Since then, the U.S. has used tariffs to achieve three broad goals, said Douglas Irwin, an economics professor at Dartmouth College and past president of the Economic History Association.
Irwin calls them the “three Rs” — revenue, restriction (import barriers to protect domestic industry) and reciprocity (a bargaining chip to cut deals with other countries).
Using tariffs for revenue
Tariffs are taxes on U.S. imports, paid by the entity that’s importing the foreign good. Those taxes raise revenue to help fund the federal government.
For roughly the first third of the nation’s history — from its founding until the Civil War — the revenue motivation was “paramount” as a driver to impose import duties, Irwin said. The federal government relied on tariffs for about 90% or more of its revenue during that period, he said.
But things changed after the Civil War, Irwin said. The U.S. started to impose other taxes, like excise taxes, that made the nation less reliant on tariffs.
Tariffs generated about half of federal revenue from about 1860 to 1913, when the income tax was created, Irwin said.
The scale of the government expanded significantly in the 1930s — with the creation of New Deal programs like Social Security — and later for defense spending during WWII and the Cold War, said Kris James Mitchener, an economics professor at Santa Clara University who studies economic history and political economy.
Today, “tariffs simply cannot raise enough revenue to fund government expenditure,” Mitchener said. “There’s no possible way you could support the size of the U.S. military on tariff revenue.”
Restriction and reciprocity
From the Civil War to the Great Depression, the U.S. primarily used tariffs as a restrictive measure on imports, to insulate the domestic market from foreign competition, Irwin said.
For example, the Tariff Act of 1930, popularly known as the Smoot-Hawley Tariff, levied protective tariffs on roughly 800 to 900 different types of goods, accounting for about 25% of all goods imported to the U.S., Mitchener said.
Then, the post-Depression era — especially the post-World War II period — ushered in an era of “reciprocity,” Irwin said.
The U.S. helped create the General Agreement on Tariffs and Trade in 1948, the precursor to the World Trade Organization, which set global rules for trade and ushered in an era of low tariffs.
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That said, the U.S. also used tariffs as a reciprocal bargaining chip before WWII.
For example, before the U.S. annexed Hawaii, it signed a free-trade agreement with the Kingdom of Hawaii in 1875. The treaty allowed for duty-free imports of Hawaiian sugar and other agricultural products into the U.S. In exchange, the U.S. got exclusive access to the harbor that would later be known as Pearl Harbor.
How the president’s tariff power grew
U.S. import taxes before the WWII era were pretty high, ranging from 20% to 50%, sometimes even reaching 60%, Irwin said. They have been “very low” since 1950 or so, he said.
The average duty on goods subject to a tariff was about 2% to 4% in the 2010s before Trump’s first term, Mitchener said.
“That’s what President Trump is trying to overturn, this sort of low period of tariffs we’ve had since World War II,” Irwin said.
Before 1934, it was Congress — not presidents — that had power over tariff rates and negotiations, said Andrew Wender Cohen, a history professor at Syracuse University.
But Democrats — then known as the political party of free trade — had an enormous majority around the New Deal era and passed the Reciprocal Trade Agreements Act of 1934, granting the president the right to negotiate tariffs in certain cases, Cohen said.
“That’s when the president gains a much more substantial authority,” Cohen said.
That power accelerated after 1948 during the “transformation of the whole global economic order,” he said.
Why Trump tariff policy is ‘very unusual,’ economists say
President Donald Trump in the Oval Office of the White House on Feb. 03, 2025.
Anna Moneymaker | Getty Images News | Getty Images
That said, Trump’s use of tariff policy is “very unusual” among modern U.S. presidents, Cohen said.
For one, Trump “likes all three Rs” — revenue, restriction and reciprocity, Irwin said.
For example, on the campaign trail, he suggested that tariffs could replace the U.S. income tax to fund the government. He said during his campaign that they would create U.S. factory jobs and has threatened to use them to strongarm Denmark to give up Greenland.
However, there are tradeoffs, Irwin said. For example, restricting imports somewhat negates tariffs’ ability to raise revenue, because it diminishes the tax base for tariffs, he said. (Those additional duties may cause companies to import less or push people to buy less, for instance.)
“You can’t really achieve all three objectives at same time,” he said.
Additionally, no previous president has tried to link a U.S. drug crisis to trade policy, as Trump did with fentanyl.
“That’s a novel take,” Mitchener said.
Many presidents have used tariffs. For example, George W. Bush, Ronald Reagan and Richard Nixon applied tariffs to protect the U.S. steel industry, as Trump did in his first term, Irwin said.
“What’s unusual about Trump is, he’s not just picking out particular industries that he thinks are of strategic importance, but he’s blocking imports across the board almost with some of these countries,” Irwin said.
Trump imposed a 10% additional tariff on all Chinese goods, for example, and threatened a 25% tariff on imports from Canada and Mexico.
“No president in recent memory has really used tariffs across the board or in a broad-brush way to achieve various objectives,” Irwin said. “They’ve sort of adhered to the rule that we belong to the WTO. That means we keep our tariffs low as long as other countries keep their tariffs low.”
Cohen agreed.
Global trade treaties, like the United States-Mexico-Canada Agreement (USMCA) Trump signed in his first term, establish a mechanism for nations to file grievances for alleged unfair trade practices, Cohen said. Nations can generally raise tariffs as a retaliatory measure if trade rules are breached, per the treaty terms, he said.
Trump’s recent unilateral tariff announcements are unique in this regard, he said.
“I can’t think of any precedent for that,” Cohen said.
“While the executive branch was given much more power since 1934, it’s always been subject to the specific terms of the agreements,” he said.
The Federal Reserve held interest rates steady at the conclusion of its policy meeting on Wednesday.
In what could be Jerome Powell’s last as chair before President Donald Trump’s yet-to-be-confirmed nominee Kevin Warsh takes the helm, central bankers maintained the federal funds rate in a target range of 3.5% to 3.75%.
Inflation has surged since the war with Iran began, leaving policymakers with limited room to act, according to Sean Snaith, the director of the University of Central Florida’s Institute for Economic Forecasting. “We’re in a kind of suspended animation — between Iran and the Fed transition,” Snaith said.
Before the oil shock, inflation was holding above the Fed’s 2% target but not worsening. Now the jump in energy costs could have longer-term inflationary effects, economists say.
For Americans struggling in the face of higher gas prices and overall affordability challenges, the central bank’s decision to keep interest rates unchanged does little to ease budgetary pressures. “The cavalry isn’t coming anytime soon,” Snaith said.
How the Fed decision impacts you
The Fed’s benchmark sets what banks charge each other for overnight lending, but also has a trickle-down effect on many consumer borrowing and savings rates.
Short-term rates are more closely pegged to the prime rate, which is typically 3 percentage points above the federal funds rate. Longer-term rates, such as home loans, are more influenced by inflation and other economic factors.
Credit cards
Most credit cards have a short-term rate, so they track the Fed’s benchmark.
After the Fed cut rates three times in the second half of 2025, the average annual percentage rate has stayed just under 20%, according to Bankrate.
“Without Fed rate cuts, there’s not much reason to expect meaningful declines anytime soon, so carrying a balance will remain very expensive,” said Matt Schulz, chief credit analyst at LendingTree.
Mortgage rates
Fixed mortgage rates, on the other hand, don’t directly track the Fed but typically follow the lead of long-term Treasury rates.
Concerns about how the Iran war will impact the U.S. economy have already pushed the average rate for a 30-year, fixed-rate mortgage up to 6.38% as of Tuesday, from 5.99% at the end of February, according to Mortgage News Daily.
That leaves homeowners with existing low mortgage rates “feeling stuck,” said Michele Raneri, vice president and head of U.S. research and consulting at TransUnion. “Mortgages, more than any other credit type, work on a churn,” she said, referring to how a dip in rates can boost borrowing activity.
Student loans
Federal student loan rates are also fixed and based in part on the 10-year Treasury note, so most borrowers are somewhat shielded from Fed moves and recent economic uncertainty.
Current interest rates on undergraduate federal student loans made through June 30 are 6.39%, according to the U.S. Department of Education. Interest rates for the upcoming school year will be based in part on the May auction of the 10-year note.
Car loans
Auto loan rates are tied to several factors, including the Fed’s benchmark. Because financing costs remain elevated, new car buyers are taking on longer loans to keep their monthly payments manageable, according to the latest data from Edmunds.
Even so, with the rate on a five-year new car loan near 7%, the average monthly payment on a new car rose to $773 in the first quarter of 2026, an all-time high.
“Car buyers are in a tough spot right now because they’re getting squeezed from both ends: high sticker prices and high interest rates, with neither showing any signs of letting up,” said Joseph Yoon, consumer insights analyst at Edmunds.
“Until the rate picture shifts, buyers will keep stretching loan terms to make payments work, which only adds to the total cost of ownership down the road,” Yoon said.
Savings rates
While the Fed has no direct influence on deposit rates, the yields tend to be correlated with changes in the target federal funds rate. So, although rates on certificates of deposit and high-yield savings accounts have fallen from recent highs, they are holding above the annual rate of inflation.
For now, top-yielding online savings accounts and one-year CD rates pay around 4%, according to Bankrate.
“Yields on high-yield savings accounts and certificates of deposit are down from their peaks of a few years ago, but they’re still strong compared to what we’ve seen for most of the past decade,” Schulz said.
Milan Markovic | E+ | Getty Images
The average tax refund is 11.2% higher this season, compared with about the same period in 2025, according to the latest IRS filing data.
As of April 10, the average refund amount for individual filers was $3,397, up from $3,055 about one year ago, the IRS reported on Friday.
The IRS data reflects about 114 million individual returns received, out of about 164 million expected through Tax Day. Next week’s filing update is expected to include data through the April 15 deadline.
President Donald Trump‘s 2025 legislation, rebranded to the “working families tax cuts,” was a key talking point for Republicans on Tax Day.
With the November midterm elections approaching and Republicans defending slim majorities in Congress, many GOP lawmakers have highlighted Trump’s tax breaks and higher average refunds.
Meanwhile, affordability has been top of mind for many Americans amid rising costs of gas, electricity, food and other living expenses.
For filers who expected a refund this season, nearly one-quarter, or 23%, planned to use the funds to pay down credit card debt, and the same share said they would save the payment, according to the CNBC and SurveyMonkey Quarterly Money Survey, released in April. It polled 3,494 U.S. adults at the end of March.
Who benefited from Trump’s ‘big beautiful bill’
“It’s been a great tax season for the American people,” many of whom have benefited from Trump’s tax breaks, Treasury Secretary Scott Bessent said during a White House press briefing on Wednesday.
More than 53 million filers claimed at least one of Trump’s “signature new tax cuts” — the deductions for tip income, overtime earnings, seniors and auto loan interest — the Department of the Treasury also announced on Wednesday.
Those filers, who claimed the deductions on Schedule 1-A, have seen an average tax cut of over $800, according to the Treasury. Tax cuts can trigger a higher refund or reduce taxes owed, depending on the filer’s situation.
Some filers who itemize tax breaks have also seen benefits from the bigger federal deduction limit for state and local taxes, known as SALT. Trump’s legislation raised that cap to $40,000, up from $10,000, for 2025.
The latest SALT deduction limit change is expected to primarily benefit higher earners, according to a May 2025 analysis of various proposals from the Tax Foundation.
The Treasury has not released data on how many filers have claimed the SALT deduction during the 2026 filing season.
Traders work at the New York Stock Exchange on April 16, 2026.
NYSE
U.S. stocks climbed to record highs on Thursday against a backdrop of war, an oil supply shock and economic forecasts warning of stunted growth amid a protracted conflict.
Many investors may be thinking: Why?
Largely, it’s because the stock market is a barometer of what investors think will happen in the future, rather than an assessment of the present day, according to economists and market analysts.
Investors are essentially shrugging off the Middle East conflict as a blip that will be resolved relatively quickly, they said.
“The stock market isn’t trying to price what’s happening today,” said Joe Seydl, a senior markets economist at J.P. Morgan Private Bank. “The stock market is always trying to price what the world is going to look like six to 12 months from now.”
Why stocks have been ‘resilient’
The S&P 500, a U.S. stock index, fell about 8% in the initial weeks of the Iran war, from the start of the conflict on Feb. 28 to a recent low on March 30.
But stocks have rebounded since then, erasing all losses since the beginning of the war. The S&P 500 closed at an all-time high on Thursday — about 11% higher than its nadir at the end of March. That followed a record close on Wednesday.
“The market has remained very resilient in the face of the war and has rallied strongly on the prospect that it will be resolved,” said Mark Zandi, chief economist at Moody’s.
A ship waits to pass through the Strait of Hormuz following the two-week temporary ceasefire between the US and Iran, which is conditional on the opening of the strait, in Oman on April 8, 2026.
Shady Alassar | Anadolu | Getty Images
And while investors cheered the possibility of a diplomatic off-ramp to the conflict, the temporary ceasefire has appeared tenuous, with the U.S. and Iran each accusing the other of breaking the agreement.
Nations haven’t been able to reach a peace deal ahead of the ceasefire’s end. Vice President JD Vance said U.S. officials left peace talks in Pakistan over the weekend after the Iranian delegation refused to agree to American demands not to develop a nuclear weapon.
The markets ‘have memory’
Ultimately, the stock market is signaling a collective belief that tensions will ratchet down, the war will end in the near term and oil flows through the Strait of Hormuz will normalize, economists said.
That’s largely because investors have been conditioned to believe that President Donald Trump will back off if the economic pain becomes too intense, economists said — the so-called “TACO” trade, shorthand for “Trump always chickens out.”
“Investors strongly believe — and have been conditioned to believe — he’s going to stand down, find a way to pivot, declare victory and move on,” Zandi said.
Trump has pushed back on the notion of backing down, framing his brinkmanship as a savvy negotiating tactic.
Economists pointed to a recent example of this dynamic: in April 2025 during so-called liberation day, when the Trump administration levied a host of tariffs on U.S. trading partners.
Within days — after the stock market had cratered more than 12% — Trump announced a 90-day pause on those tariffs. Stocks then saw one of their biggest daily rallies in history following Trump’s reversal.
Investors remember that Trump often de-escalates geopolitical shocks — which is why they’ve seized on positive headlines that hint at progress in peace talks, for example, Seydl said.
“The markets have memory,” Seydl said.
AI stocks and the ‘tech boom’
Traders celebrating at the New York Stock Exchange on April 15, 2026, as the S&P 500 closed above the 7,000 level for the first time.
NYSE
There are other factors underpinning market resilience during wartime, economists said.
One is the investors’ enthusiasm for artificial intelligence and technology stocks, which account for almost half of the S&P 500’s market capitalization, Zandi said.
“Those stocks run on their own dynamic independent of anything, including the war in Iran,” Zandi said. “I think we would have been down a lot more and it would have been harder for us to recover had it not been for the very, very optimistic perspectives on AI.”
We’re in the middle of a “tech boom” — and investors are likely to remain optimistic until they think the tech cycle has run its course, Seydl said.
More broadly, stock investors are essentially making a bet on the future earnings growth of a company — and the earnings backdrop has been “pretty solid,” Seydl said.
Consumer spending appears to be stable, for example, economists said. And companies are getting a boost to their after-tax earnings from the GOP’s so-called “big beautiful bill,” which, among other things, made it easier to write off investments upfront and therefore reduce their tax liability, Zandi said.
Going forward
Experts said there will be an economic hit from the Iran war, though.
“Despite the recent news of a temporary ceasefire, some damage is already done, and the downside risks remain elevated,” Pierre-Olivier Gourinchas, director of research at the International Monetary Fund, wrote Tuesday.
A protracted conflict risks deep and global economic pain, he wrote.
Even if the conflict is short-lived — as the broad market expects — stocks are unlikely to march much higher until it’s clear the U.S. is on the other side of the war and its economic fallout, Zandi said.
If investors are incorrect, and President Trump doesn’t back down or quickly extricate the U.S. from the war, the stock market may see a “full-blown correction” or worse, Zandi said. A stock market correction is a decline of at least 10% from recent highs.
“Everyone thinks they know what the script is,” Zandi said. “Now they just need to follow the script. If they don’t, the market will have some real problems.”
The uncertainty provides yet another example of why the average investor with a long time horizon should stick to their investment plan and ignore the noise, experts said.
“Trying to time the market is very difficult if not impossible for the average investor,” Seydl said. “It’s better to take a long-term perspective and ride out bouts of volatility.”
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