3 Tariff Scenarios: What Happens If Tariffs Double, Halve, or Stay

What is the baseline US tariff rate going into 2026?

The “effective tariff rate” is not a single posted number — it is the weighted average of all import duties actually collected as a share of total import value. Before 2018, this rate was roughly 1.7% (World Bank data). The Section 301 tariffs on Chinese goods pushed it to around 3-4% by 2019. Additional rounds of tariffs in 2025-2026 on a broader set of trading partners pushed the weighted effective rate into the 7-12% range.

For context: at 10% effective, the US tariff regime is comparable to where it stood in the 1950s. At 20%, it would approach Smoot-Hawley-era levels not seen since 1930. The political and economic stakes of each scenario are therefore not symmetrical — doubling carries more historical weight than halving.

Tariffs do not affect all households equally. A household that buys a new car and new electronics every few years has more tariff exposure than one that buys used goods locally. The estimates below use Tax Foundation and PIIE modeling for an average US household (median income ~$78,000, two adults).

Scenario comparison: CPI impact, household costs, and GDP by tariff path

Sources: Tax Foundation (2025 tariff modeling), Peterson Institute for International Economics, Congressional Budget Office. CPI impact is a one-time level shift in the year of imposition, not an ongoing annual rate increase. Household cost is estimated annual increase vs. a no-tariff counterfactual.

What happens if tariffs double to ~20%?

Doubling the effective tariff rate from 10% to 20% would cover a much wider range of import categories than current tariffs. At present, high tariffs are concentrated on Chinese goods (electronics, machinery, chemicals) and steel/aluminum from all sources. A doubling scenario would likely require broad new tariffs on consumer goods from allied trading partners — the EU, Japan, South Korea, Vietnam — which have so far been spared the steepest rates.

The Federal Reserve's modeling (March 2025) estimates that a 10-percentage-point increase in effective tariff rates produces a one-time CPI level shift of 1.5–2.5 percentage points. This is not a persistent inflation increase — the price level rises once and then stabilizes. But “stabilizes” at a higher level: if CPI is at 115 before the tariff increase, it moves to 116.5–117.5 and stays there.

For a household spending $78,000 annually, with roughly 25% of that on imported or import-competing goods, a 20% effective rate adds an estimated $2,100–$3,400 per year in higher costs. Electronics take the biggest hit: a laptop that costs $1,200 could see its retail price rise $150–$200 if Chinese-origin components face 20%+ duties with no supply chain re-routing.

Which goods are most affected by doubled tariffs?

Electronics and apparel are the most exposed categories — they have high import content and limited domestic substitutes. Autos face significant exposure too, as supply chains span US-Mexico-Canada-Japan-Germany. Food is least affected: the US is a net agricultural exporter, and most grocery staples are domestically produced.

What happens if tariffs halve to ~5%?

A return to 5% effective rates would require rolling back the Section 301 China tariffs (currently 19-25% on many categories) and the Section 232 steel and aluminum duties. This would represent a significant policy reversal — these tariffs have bipartisan support as of 2026, having been maintained through two administrations.

If tariffs were halved, the CPI effect would be a negative one-time level shift of 0.3–0.6 percentage points. This would be felt as a price decrease (or slower price increase) in the categories most affected: electronics, apparel, and imported auto parts. The PIIE estimates that full removal of the China tariffs alone would reduce consumer prices by 0.26% — halving them would produce roughly half that benefit.

Which goods drop in price first if tariffs fall?

Electronics respond fastest. Smartphone, laptop, and TV prices are set in highly competitive markets with thin retail margins. When import costs fall, retailers pass through most of the savings quickly to maintain market share. Consumers would likely see lower prices within 1–3 months of tariff reduction.

Apparel follows in 3–6 months, as clothing is ordered seasonally and retailers clear existing inventory before repricing. Auto prices take longer — 6–18 months — because dealers have long inventory cycles and manufacturers use tariff relief to rebuild margins before cutting prices.

Food prices are largely unresponsive to tariff changes in either direction. The US is a net food exporter, and most grocery staples (beef, chicken, corn, wheat, dairy) are domestically sourced. The main food exposure is imported produce (fruits, vegetables from Mexico and Central America) and commodities like coffee and cocoa.

What happens if tariffs stay at current levels?

The “tariffs stay” scenario is the base case as of early 2026. Businesses and consumers have partially adapted to the 10% effective rate over the past several years, which means the acute inflation impact has mostly already occurred. The ongoing drag is more about competitiveness and supply chain friction than about new price increases.

In the stay scenario, the main effects are structural rather than inflationary: supply chains continue to diversify away from China toward Vietnam, Mexico, and India; domestic manufacturing in tariff-protected industries (steel, aluminum, solar panels) remains higher than it would otherwise be; and the US runs a slightly smaller trade deficit than in the pre-tariff era (though the overall trade deficit has not meaningfully declined, per Census Bureau data).

For households, “tariffs stay” means absorbing the existing $1,000–$1,700 annual cost increase as the new normal. Wages adjust over time to reflect higher consumer prices — the Federal Reserve's wage-price models suggest full pass-through takes 2–3 years — so the real purchasing power impact diminishes as nominal wages catch up.

Category-level impact across all three scenarios

Import share = share of US consumption supplied by imports (Census Bureau). Price impact estimates based on PIIE and Tax Foundation pass-through modeling. Electronics includes smartphones, laptops, TVs, and consumer electronics. Autos includes new and used vehicles plus aftermarket parts.

What does history tell us? The 2018–2019 tariff precedent

The 2018–2019 Section 301 tariffs on Chinese goods provide the best recent data point for how US tariffs actually affect prices. Research published in the American Economic Review (Fajgelbaum et al., 2020) found that US consumers bore nearly 100% of the cost — Chinese exporters did not lower their yuan-denominated prices to offset the tariff, and US importers passed the full duty to retail buyers.

A University of Chicago study on washing machine tariffs (Flaaen, Hortaçsu, and Tintelnot, 2020) found that a 20% tariff raised washer retail prices by $86 on average. More striking: dryer prices rose $92, even though dryers were not directly tariffed. Manufacturers used the cover of washing machine price increases to raise prices on the companion product simultaneously.

The second insight from 2018–2019: supply chains shift, but slowly. US imports from China fell 20% between 2018 and 2021 — but most of that trade redirected to Vietnam, Mexico, and India rather than being reshored to the US. The domestic manufacturing jobs that tariff proponents hoped to create materialized in small numbers (steel added ~8,000 jobs per Peterson Institute estimates), but the jobs created were vastly outnumbered by jobs lost in downstream industries that use steel and aluminum as inputs.

How businesses and consumers adapt in each scenario

In the tariffs double scenario, businesses accelerate supply chain shifts. Companies that had been slowly moving production out of China speed up. Apple, which began moving iPhone assembly to India and Vietnam starting in 2022, would likely complete that transition faster under doubled tariffs. Consumers substitute: buying refurbished electronics instead of new, delaying car purchases, shopping at secondhand apparel stores. Some manufacturing returns to the US in tariff-protected sectors, but at higher cost — which keeps prices elevated even after reshoring.

In the tariffs halve scenario, the supply chain shifts of the past five years create an asymmetry. Companies that built Vietnam and India supply chains do not immediately return to China — the sunk costs and geopolitical risk calculus have changed. So tariff relief would improve margins for importers more than it cuts prices for consumers, at least in the first year. Over 2–3 years, competitive pressure brings prices down.

In the tariffs stay scenario, adaptation continues at the current pace. The share of US imports from China fell from 21% in 2017 to 14% in 2023 (Census Bureau). This trend continues as companies complete multi-year supply chain diversification projects. The economy settles into a new equilibrium with higher prices in tariffed categories, modestly more domestic production in protected sectors, and continued geopolitical decoupling from China.

To see how these price changes compound over time and affect your purchasing power, use our free Inflation Calculator to model the impact of a 1–2% tariff-driven CPI shift on your household budget.

Frequently asked questions about tariff scenarios

What is the current US tariff rate in 2026?

The effective US tariff rate sits between 7% and 12% in early 2026 — the weighted average of all import duties actually collected as a share of total import value. This is up from roughly 1.7% before 2018, reflecting the Section 301 China tariffs, Section 232 steel and aluminum duties, and additional tariffs imposed in 2025-2026.

How much do tariffs raise prices for consumers?

Research from the Peterson Institute for International Economics found that US consumers bore roughly 100% of the cost of the 2018-2019 China tariffs. At the current 7-12% effective rate, tariffs add an estimated $1,000–$1,700 per household annually. Doubling tariffs to ~20% would push that cost to $2,100–$3,400 per year.

What would happen to inflation if tariffs doubled?

CBO and Federal Reserve models estimate a one-time CPI level shift of 1.5–2.5 percentage points above baseline if the effective tariff rate doubles from ~10% to ~20%. This is a level shift — prices jump once and then stabilize at the higher level, rather than continuing to rise year after year.

Which goods get cheaper if tariffs are cut?

Electronics drop first (1–3 months), then apparel (3–6 months), then autos (6–18 months). Food prices are largely unaffected since most US groceries are domestically produced. The PIIE estimates that full removal of China tariffs alone would reduce consumer prices by 0.26%.

What happened to prices after the 2018-2019 tariffs?

Studies in the American Economic Review found that US consumers paid the full 2018-2019 tariff costs — Chinese exporters did not reduce their prices to absorb the duty. The washing machine tariff raised average washer prices by $86, while dryer prices rose $92 in sympathy despite not being directly tariffed.

Data sources: Tax Foundation tariff modeling (effective rate estimates, household cost impacts); Peterson Institute for International Economics (pass-through analysis, CPI impact modeling); Congressional Budget Office (GDP and macroeconomic effects); Federal Reserve Board (inflation pass-through estimates, March 2025). Supply chain share data from US Census Bureau Foreign Trade statistics. All figures independently verified against accurate.software inflation calculators. Analysis by the staff at accurate.software.