The simple version

• A 10 percent global tariff imposed February 24, 2026 under Section 122 of the Trade Act of 1974 is set to expire by statute on July 24, 2026.
• Section 122 runs 150 days, and the President cannot extend it unilaterally; only Congress can extend or replace it.
• Dallas Fed research estimates the realized tariff changes added about 0.80 percentage points to 12-month core PCE inflation through March 2026.
• Yale Budget Lab estimates average annual household cost from about $517 (lowest income decile) to $2,175 (top decile), in 2025 dollars.
• This explains where those costs show up. It does not predict whether Congress extends the tariff or what replaces it.

On February 24, 2026, the Trump administration imposed a 10 percent tariff on most imports under Section 122 of the Trade Act of 1974, applying to roughly $1.2 trillion (about 34 percent) of annual imports per Yale Budget Lab tracking. The move came four days after the Supreme Court ruled 6-3 on February 20 that the International Emergency Economic Powers Act (IEEPA) does not authorize tariffs, vacating the legal basis for earlier IEEPA-based tariff actions. Section 122 is a different statute, and Congress wrote it with a hard expiration: 150 days, period. That clock runs out July 24, 2026.

The President cannot extend Section 122 unilaterally. Only Congress can extend or replace it, and the political appetite for doing so remains unclear. Without congressional action, the 10 percent rate falls back automatically.

What the tariff has actually done to prices

Federal Reserve Bank of Dallas research released May 5, 2026 by economist Ron Mau gives the most direct measurement so far. Mau estimates that realized tariff changes added about 0.80 percentage points to the 12-month core Personal Consumption Expenditures (PCE) inflation rate through March 2026. Put differently: absent tariff pass-through, core PCE inflation would have been roughly 2.3 percent rather than the higher reported figure. The Dallas Fed paper concludes the price-level effects peaked in the first quarter of 2026.

That number reflects what central bank researchers measure in actual data, not a projection. The pass-through has shown up most directly in durable goods, non-durable goods, and imported food categories. The San Francisco Fed's March 2026 'Effects of Tariffs on the Components of Inflation' analysis showed similar results, with goods inflation moving on tariff timing while services inflation stayed roughly stable.

What it costs the average household

The Yale Budget Lab's April 8, 2026 update modeled annual household costs across income deciles in 2025 dollars, assuming Section 122 tariffs expire on schedule:

• Lowest 10 percent of households: about $517 per year.
• Top 10 percent of households: about $2,175 per year.
• As a share of after-tax-and-transfer income: 1.1 percent for the bottom decile, 0.4 percent for the top decile. The burden is roughly three times heavier for the lowest-income households as a share of income.
• If Section 122 is extended permanently: the same range rises to about $813 (bottom decile) and $3,424 (top decile).

Tax Foundation's separate April 2026 estimate puts the average across-the-board household burden at roughly $1,500 in 2026, which Tax Foundation describes as the largest U.S. tax increase as a share of GDP since 1993. The two organizations use different definitions of household and tax unit, which is why the figures do not match exactly. Both methods agree on direction and order of magnitude.

The numbers

• Tariff rate: 10 percent on roughly $1.2 trillion (about 34 percent) of annual imports (Yale Budget Lab).
• Statutory window: 150 days, expiring July 24, 2026.
• Inflation impact: about 0.80 percentage points added to 12-month core PCE through March 2026 (Dallas Fed).
• Household cost if it expires on schedule: about $517 per year in the bottom decile, about $2,175 in the top; 1.1 percent versus 0.4 percent of after-tax income.
• If extended permanently: about $813 (bottom) to $3,424 (top). Tax Foundation's separate estimate averages roughly $1,500 per household in 2026.

The Real Cost lens

Take roughly the middle of the Yale Budget Lab's expire-on-schedule range: about $1,346 per year for a household between the second and ninth deciles. If Section 122 lapses in July and replacement tariffs come in lower, this is more or less a one-year cost. If Congress extends, or the USTR's Section 301 investigations fill the gap with similar tariff rates, the burden continues.

$1,346 per year, redirected into a low-cost index fund at 7 percent (long-run S&P 500 average), compounds to roughly $135,000 over 30 years. That is the opportunity cost of carrying a recurring tariff burden, not the direct cost. The direct cost itself ($1,346 multiplied by 30 equals about $40,380) is real money on its own.

Where the cost shows up in a real household budget

Tariff pass-through hits durable goods (appliances, electronics, furniture, vehicles) and non-durable goods (clothing, household supplies) far more than services. The Cleveland Fed's Inflation Nowcasting and the Minneapolis Fed's March 2026 analysis both note that services inflation has not moved meaningfully on tariff news. So the budget categories with the most visible price changes are: groceries (especially imported categories), clothing, household goods, and big-ticket items like cars and appliances.

Morningstar's April 2026 forecast expected durable goods prices to rise about 4.5 percent in 2026 and non-durable goods (apparel, textiles, food, paper) to rise about 5.6 percent, with beef and veal prices up around 9.4 percent on the year. Households shopping these categories see the tariff math more directly than households whose spending tilts toward services like rent, insurance, and healthcare.

What to watch between now and July 24

• USTR Section 301 investigations. On March 11, 2026, USTR opened Section 301 cases targeting excess manufacturing capacity (16 economies) and forced labor enforcement (60-plus economies). Ambassador Greer signaled intent to conclude these on an accelerated timeline before Section 122 expires.
• Section 232 product expansions. The administration retains the ability to add product categories under Section 232 (national security) without Section 122.
• Any congressional action on extension. The 'Reclaim Trade Powers Act' is moving in the opposite direction (returning tariff authority to Congress), so a Section 122 extension is not assumed.
• April 2026 CPI release, scheduled May 12, 2026 at 8:30 a.m. ET (BLS).

What this means

For a household budget this is mostly a goods-price story, not a services one: the pass-through lands on durable goods like appliances, electronics, furniture, and vehicles, and on non-durable goods like clothing, groceries, and household supplies, while rent, insurance, and healthcare have barely moved on tariff news. Whether it is a one-year cost or an ongoing one depends on July 24. If Section 122 lapses and is not replaced at similar rates, the burden eases; if Congress extends it or Section 301 and 232 actions fill the gap, it continues. The practical move is to watch the July 24 deadline and the listed Section 301 and 232 actions before assuming the cost is temporary, rather than timing a big purchase on tariff headlines alone.

What this is NOT

Not a prediction about whether Congress extends Section 122 or USTR replaces it. Not a position on whether the tariff policy is good or bad. Not advice to buy now or wait. Just the measured price-level impact through March 2026, the household cost estimates from primary research, and the statutory clock that runs out July 24.

Sources

• Federal Reserve Bank of Dallas, 'Effects of realized tariff changes on PCE prices peaked in first quarter 2026' by Ron Mau, May 5, 2026 (dallasfed.org/research/economics/2026/0505-mau)
• Yale Budget Lab, 'State of U.S. Tariffs: April 8, 2026' (budgetlab.yale.edu)
• Tax Foundation, 'Tariff Tracker: 2026 Trump Tariffs and Trade War by the Numbers,' April 2026 update (taxfoundation.org)
• Federal Reserve Bank of San Francisco, 'Effects of Tariffs on the Components of Inflation,' March 2026 (frbsf.org)
• Federal Reserve Bank of Minneapolis, 'Tariffs can't explain rising goods inflation,' 2026 (minneapolisfed.org)
• Section 122 of the Trade Act of 1974 (19 U.S.C. § 2132)
• Bureau of Labor Statistics, Consumer Price Index release schedule (bls.gov/schedule/news_release/cpi.htm)