Source: https://mochatrade.com/learn/glossary/tariff

# Tariff
URL: https://mochatrade.com/learn/glossary/tariff
Last modified: 2026-10-17

A tariff is a tax on imports. In the US the president can set many of them [alone, effective the moment they are announced](https://mochatrade.com/learn/us-market-structure/who-moves-us-stocks), which is why one post can reprice the market without a vote. Tariffs reach [inflation](https://mochatrade.com/learn/us-market-structure/us-inflation-explained) and sit with [the shocks that come with no calendar](https://mochatrade.com/learn).

## Related terms

- Dual mandate: https://mochatrade.com/learn/glossary/dual-mandate
- PCE: https://mochatrade.com/learn/glossary/pce
- Term premium: https://mochatrade.com/learn/glossary/term-premium
- Core CPI: https://mochatrade.com/learn/glossary/core-cpi
- Gross margin: https://mochatrade.com/learn/glossary/gross-margin
- US ETF: https://mochatrade.com/learn/glossary/us-etf