anderslee2020/us-harmonized-tariff-schedule-hts

US Harmonized Tariff Schedule (HTS) — codes, descriptions, duty rates

Every numbered line of the Harmonized Tariff Schedule of the United States (Revision 23 (2026), effective 11/10/2026) as one flat CSV: 29,861 rows from 4-digit headings down to 10-digit statistical reporting numbers, with the full official description path, the general (MFN), special and column 2 duty rates, and units of quantity. Built from the official USITC export; nothing is retyped or estimated.

The HTS is hierarchical: a 10-digit line such as 6109.10.00.12 reads only "Men's (338)" on its own. Here each line also carries full_description, the text of every level above it (including the unnumbered "Of cotton:" style levels), and 10-digit lines that print no rate carry the rate of the 8-digit line they belong to, as the schedule intends.

File

hts.csv — 29,861 rows, 23,533 of them declarable (a line with no more detailed lines under it, i.e. what goes on an entry). UTF-8, comma-separated, official order.

Column	Description
hts_code	Code with dots, e.g. 6201.40.70.00
digits	Same code without dots (keep it as text: leading zeros matter, e.g. 0101210010)
level	4 heading, 6 subheading, 8 tariff line, 10 statistical reporting number
chapter, heading	First 2 and 4 digits
indent	Indent level in the published schedule (0 = heading)
description	The line's own text as published
full_description	Every level from the heading down, joined with >
general_rate	Column 1 General (normal trade relations / MFN) rate as published: a percentage, Free, a specific rate (¢/kg, ¢/liter, $/No.) or a compound rate (¢/kg + %)
special_rate	Column 1 Special rate with the trade-program codes it applies to, e.g. Free (AU,BH,CL,…)
column2_rate	Column 2 rate (countries without normal trade relations)
rates_from	Set when the rates were taken from a parent line (the 8-digit line) because this line prints none
units	Units of quantity for reporting (e.g. doz., kg)
declarable	yes if no more detailed line exists under this code

What the rates do not include

The rates on a chapter 1–97 line are its base rates. Chapters 98 and 99 are in the file as published, but their additional duties are not added to any other line: duties in chapter 99 (Section 301 tariffs on goods of China, Section 232 steel/aluminum, reciprocal and other temporary duties), antidumping/countervailing duties, quotas and merchandise processing fees are not added in. Check those separately for the country of origin.

Example

import pandas as pd
hts = pd.read_csv("hts.csv", dtype=str)
hts[hts.digits == "6109100012"][["hts_code", "full_description", "general_rate", "rates_from"]]
# 6109.10.00.12 | T-shirts, singlets, tank tops and similar garments, knitted or crocheted > Of cotton >
#                 Men's or boys' > Other T-shirts > Men's (338) | (rate of 6109.10.00) | 6109.10.00
lines = hts[hts.declarable == "yes"]          # what can go on an entry
hts[hts.full_description.str.contains("lithium", case=False) & (hts.level == "10")]

Source and updates

U.S. International Trade Commission, Harmonized Tariff Schedule of the United States, Revision 23 (2026) (release 2026HTSRev23), downloaded from the official HTS export. USITC publishes several revisions a year; this dataset gets a new version when a new revision takes effect. Classification is decided by the General Rules of Interpretation, section and chapter notes and CBP rulings, not by the text of one line; HS code decision guides with CBP rulings for common products are at https://hs-code.net/.

License

The HTS is a work of the U.S. Government and is in the public domain in the United States; this compilation is released under CC0 1.0. Not affiliated with or endorsed by USITC or U.S. Customs and Border Protection.