# United States tariff lines under HS 2918.22

> The United States tariff splits HS 2918.22 (carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives: O-Acetylsalicylic acid, its salts and esters) into 2 national lines: 2918.22.10.00 (O-Acetylsalicylic acid (Aspirin)) and 2918.22.50.00 (salts and esters of O-acetylsalicylic acid). The general (MFN) duty is 6.5% on all 2 lines.

Source: https://border.bot/countries/united-states/hs-codes/291822
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 29](https://border.bot/countries/united-states/hs-codes/29) / [2918.22](https://border.bot/countries/united-states/hs-codes/291822)

## Key facts

- HS subheading: [2918.22](https://border.bot/hs-codes/291822)
- Duty (MFN): 6.5%
- National lines: 2
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2918.22

The United States tariff splits HS 2918.22 (carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives: O-Acetylsalicylic acid, its salts and esters) into 2 national lines: 2918.22.10.00 (O-Acetylsalicylic acid (Aspirin)) and 2918.22.50.00 (salts and esters of O-acetylsalicylic acid).

The general (MFN) duty is 6.5% on all 2 lines.

- [2918.22.10.00](https://border.bot/countries/united-states/hs-codes/2918221000) Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, O-Acetylsalicylic acid, its salts and esters, O-Acetylsalicylic acid (Aspirin). Duty (MFN): 6.5%
- [2918.22.50.00](https://border.bot/countries/united-states/hs-codes/2918225000) Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives, O-Acetylsalicylic acid, its salts and esters, Salts and esters of O-acetylsalicylic acid. Duty (MFN): 6.5%

## In other countries

No other national tariff on border.bot has live lines under 2918.22 yet.

- [The Harmonized System text for 2918.22](https://border.bot/hs-codes/291822)

- Previous subheading: [2918.21](https://border.bot/countries/united-states/hs-codes/291821) Salicylic acid and its salts
- Next subheading: [2918.23](https://border.bot/countries/united-states/hs-codes/291823) Other esters of salicylic acid and their salts

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2918.22?

The United States tariff splits HS 2918.22 (carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives: O-Acetylsalicylic acid, its salts and esters) into 2 national lines: 2918.22.10.00 (O-Acetylsalicylic acid (Aspirin)) and 2918.22.50.00 (salts and esters of O-acetylsalicylic acid).

### What is the duty on HS 2918.22 in the United States?

The general (MFN) duty is 6.5% on all 2 lines.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/291822.json