"How much will tariffs cost me" doesn't have one universal answer — it depends on the tariff rate for the specific product, and on how much of that added cost the seller actually passes on to the price tag versus absorbs elsewhere.
Tariff impact on price, the arithmetic that gets skipped
On a $1,000 item with a 25% tariff and full (100%) cost pass-through, the added cost is $250 — a new price of $1,250. But at 50% pass-through, the same 25% tariff only adds $125 to the price, because the importer or retailer is absorbing the other half of the cost instead of passing all of it to the buyer.
How much will tariffs cost me, when rates keep changing
2026 has been a genuinely volatile year for US tariff policy: reciprocal tariffs imposed under one legal authority were struck down by the Supreme Court in February 2026 and partially replaced, while separate sector-specific tariffs — 50% on steel and aluminum, 25% on passenger vehicles under Section 232 — remain in force under different legal authority entirely. A calculator that hardcodes "the tariff rate for country X" risks being wrong within weeks; entering the rate that actually applies to a specific product (checked against CBP.gov or USTR.gov) avoids that problem.
Import tariff calculator logic, and why pass-through matters
Economic research on tariff pass-through shows it isn't automatic or uniform — competitive markets and thin margins can lead sellers to absorb part of a tariff's cost rather than pass all of it to consumers, at least temporarily. Modeling a pass-through percentage below 100% gives a more realistic (and often lower) estimate of the actual price impact than assuming every dollar of tariff cost lands on the price tag.
