# United States tariff lines under HS 8473.21

> The United States tariff splits HS 8473.21 (parts and accessories of the machines of heading 8470: Of the electronic calculating machines of subheading 8470 10, 8470 21 or 8470 29) into 1 national line: 8473.21.00.00 (of the electronic calculating machines of subheading 8470.10, 8470.21 or 8470.29). Every United States line under 8473.21 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/847321
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 84](https://border.bot/countries/united-states/hs-codes/84) / [8473.21](https://border.bot/countries/united-states/hs-codes/847321)

## Key facts

- HS subheading: [8473.21](https://border.bot/hs-codes/847321)
- Duty (MFN): Free
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

## United States lines under 8473.21

The United States tariff splits HS 8473.21 (parts and accessories of the machines of heading 8470: Of the electronic calculating machines of subheading 8470 10, 8470 21 or 8470 29) into 1 national line: 8473.21.00.00 (of the electronic calculating machines of subheading 8470.10, 8470.21 or 8470.29).

Every United States line under 8473.21 is free of general (MFN) duty.

- [8473.21.00.00](https://border.bot/countries/united-states/hs-codes/8473210000) Parts and accessories of the machines of heading 8470, Of the electronic calculating machines of subheading 8470.10, 8470.21 or 8470.29. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 8473.21 yet.

- [The Harmonized System text for 8473.21](https://border.bot/hs-codes/847321)

- Previous subheading: [8472.90](https://border.bot/countries/united-states/hs-codes/847290) Other
- Next subheading: [8473.29](https://border.bot/countries/united-states/hs-codes/847329) Parts and accessories (other than covers, carrying cases and the like) suitable for use solely or principally with machines of headings 8470 to 8472

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8473.21?

The United States tariff splits HS 8473.21 (parts and accessories of the machines of heading 8470: Of the electronic calculating machines of subheading 8470 10, 8470 21 or 8470 29) into 1 national line: 8473.21.00.00 (of the electronic calculating machines of subheading 8470.10, 8470.21 or 8470.29).

### What is the duty on HS 8473.21 in the United States?

Every United States line under 8473.21 is free of general (MFN) duty.

## 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/847321.json