TariffCalc US beta
Calculate duties

Data transparency

Know exactly what the calculator knows.

Every published dataset has an authority, release, effective date, retrieval timestamp and content checksum.

US HTS, Section 301 and Phase 25 Section 232 registries published with version controls

Database connected. Schema version 1.0.0-rc.18.

Customs fee

Merchandise Processing Fee

Customs value × 0.3464%, subject to FY2026 minimum and maximum

0.346400% Min $33.58 · Max $651.50
Official source

Customs fee

Harbor Maintenance Fee

Customs value × 0.125% for covered ocean cargo

0.125000%
Official source

Additional-duty registry

China Section 301 Chapter 99 headings

Published
Registry headings
24
Deterministic rates
13
Review headings
11
Registry effective
2026-07-21
9903.88.01 25%
9903.88.02 25%
9903.88.03 25%
9903.88.04 25%
9903.88.15 7.5%
9903.88.21 Manual review
9903.88.22 Manual review
9903.88.23 Manual review
9903.88.24 Manual review
9903.88.25 Manual review
9903.88.26 Manual review
9903.88.27 Manual review
9903.88.28 Manual review
9903.88.69 Manual review
9903.88.70 Manual review
9903.91.01 25%
9903.91.02 50%
9903.91.03 100%
9903.91.05 50%
9903.91.06 25%
9903.91.07 50%
9903.91.08 100%
9903.91.09 Manual review
9903.91.11 25%
How Section 301 is calculated

Phase 25 additional-duty rule

Section 232 primary steel: Annex I-A / China

Beta
Rule count
1
Ordinary scope
39 locked Annex I-A prefixes; complete 10-digit descendants
Chapter 99
9903.82.02
Origin
China only
Rate
50%
Basis
Full customs value
Rule effective in app
2026-07-21
Implementation
Source contract implemented; Phase 25 final regression deferred
External professional review
Not obtained or claimed
Section 232 scope and basis Strengthening Actions Taken To Adjust Imports of Aluminum, Steel, and Copper Into the United States Executive Office of the President · 2026-04-09 Section 232 scope and basis Proclamation 11032 Annex I-A — 50% Section 232 Tariff on Full Value The White House · 2026-06-01 Section 232 scope and basis Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper Into the United States Executive Office of the President · 2026-06-04
View the exact Section 232 coverage contract

Release operations

Staged updates and preserved history

Auditable

Candidate USITC releases are imported as drafts, compared against the published schedule, and activated only after review. Phase 26 can prepare this discovery/fetch/staging pipeline from an allowlisted official USITC source, but it cannot publish automatically and is not scheduled in the supplied package. Previous schedules remain archived for date-correct calculations and rollback.

Visible versions
1
Current version
2026HTSRev12
Comparison scope
Codes, rates, notes, measures
Rollback
Preserved archived schedule
Official update preparation
Available; manual publication only
Scheduled updater
Not configured in supplied package
View tariff data changelog

US beta coverage

What is and is not automated

Included General/base HTS rate

Free, simple percentage, and selected unqualified specific or compound rates.

Included Explicitly confirmed MPF and ocean HMF

Formal-entry MPF requires a formal-entry selection. HMF requires ocean mode plus confirmation of covered vessel cargo and subject port use.

Included Supported China Section 301 headings

Explicit 9903.88 and 9903.91 references with deterministic percentage formulas are added to the estimate.

Included China-origin primary-steel Annex I-A Section 232 beta

9903.82.02 at 50% of full customs value for complete 10-digit descendants of the 39 locked primary-steel prefixes.

Review Steel derivatives, aluminum/copper, other origins, Section 122 and other Chapter 99

Other products, origins, special tiers, exclusions and measures are not automatically added.

Review AD/CVD, quotas and safeguards

Case scope, exporter, quota availability and other facts require separate rule data.

Review Preferences and rules of origin

The Special column is retained for research but eligibility is not automatically claimed.

Calculation methodology Official data sources Report a possible error