Look up U.S. tariff treatment for any HTS code as of any past, present, or future date. Source-backed tariff resolution powered by canonical HTS data.
All tariff rates are resolved from the TariffCatalog measure database. Verify results against official tariff databases before filing.
Enter HTS code, origin, and entry date, then run the tool to see a source-backed tariff resolution. No signup is required.
An as-of tariff calculator resolves HTS-classified duty rates as they applied on a specific date. Use it to confirm historical tariff stacks, verify current duty treatment, or check whether announced future tariffs are effective on a planned entry date. Powered by canonical U.S. tariff measure data. Results reflect available source-backed information for the queried date.
The resolver matches the entered HTS code, origin country, destination, and entry date against the versioned tariff measure database. Each applicable measure layer contributes its ad valorem rate, specific rate, or fixed fee to the total calculation. Measures are filtered by effective date range, geographic scope, and product scope.
Use this tool when you need to verify what tariff treatment applied to an HTS code and origin on a past entry date, or to preview a future tariff before it takes effect. Required inputs: HTS code, country of origin, and entry date. Optional inputs: customs value, currency, and quantity.
Verify results against the USITC HTS database and the official tariff measure source before filing. Tariff measures may change between database updates.
Official source notes and calculator assumptions should be reviewed before shipment, label purchase, invoice filing, or customs entry.
The resolver matches the entered HTS code, origin country, destination, and entry date against the versioned tariff measure database. Each applicable measure layer contributes its ad valorem rate, specific rate, or fixed fee to the total calculation. Measures are filtered by effective date range, geographic scope, and product scope.
An importer entered HTS 6109.10.0012 (cotton T-shirt), origin CN, destination US, entry date 2025-01-15, customs value USD 1,500. The result shows the base MFN duty rate applicable on that date and any Section 301 additional tariff layer, along with verification notes and source references.
Verify results against the USITC HTS database and the official tariff measure source before filing. Tariff measures may change between database updates.
This tool provides planning estimates and document preparation support only. Confirm final classifications, duty treatment, and filing requirements with official tariff databases or qualified trade professionals.
As-of means a tariff rate is resolved at a single point in time — a past entry date, today, or a future effective date. The as-of calculator finds the versioned tariff measure that was or will be active on the date you specify, then resolves the applicable duty rate from that layer.
Yes. Enter the HTS code, country of origin, and the historical entry date. The resolver will return the tariff treatment as it was effective on that date, including any additional tariff programs that were active at the time.
A historical query uses a past entry date and resolves measures that were active then. A future-effective query uses a future date — the resolver shows measures that are announced or currently effective and may carry a "needs_verification" note since announced tariffs may change before their effective date.
Future-effective tariff measures may not yet have a fully parsed rate expression or confirmed effective date in the source data. The needs_verification note signals that the rate should be confirmed against the most current official source before relying on it for filing or quoting.
If a Section 301 Chapter 99 measure was active for the HTS code, origin, and entry date you enter, it will appear as a separate tariff layer in the results with its own rate expression, measure name, and source reference. Excluded products or suspended rates are flagged in the verification notes.
No. The as-of result is an estimate backed by the tariff measure database. Customs may apply additional processing rules, bonding requirements, or post-entry adjustments. Verify all rates and classifications with USITC, CBP, or a qualified customs broker before filing.
Use the AI HS Code Finder, CSV Catalog Checker, and Import Duty Calculator to prepare customs data before shipping.
