A TariffCalc result is an estimate—not filing advice.

What the current US beta can calculate

• Deterministic general HTS rates supported by the bundled USITC release.
• FY2026 formal-entry Merchandise Processing Fee when formal entry is explicitly selected.
• Harbor Maintenance Fee when covered commercial-vessel cargo is explicitly confirmed.
• Supported China Section 301 duties when the ordinary HTS line explicitly references a deterministic Chapter 99 heading.
• The locked China-origin primary-steel Annex I-A Section 232 family under 9903.82.02, limited to complete 10-digit descendants of the 39 published prefixes in the Phase 25 contract.

Canada controlled-beta limitation

When the Canada gate is enabled, TariffCalc supports only its locked T2026 exact-item MFN contract and optional standard federal import GST. It does not determine preferential eligibility or rules of origin and does not automate SIMA/trade-remedy duties, surtaxes, Chapters 98/99, excise or provincial tax treatment. Canada results remain review-required.

United Kingdom beta

United Kingdom controlled-beta limitation

When the UK gate is enabled, TariffCalc supports only its locked UKGT v1.33 commodity-code set, MFN Free/simple ad-valorem rates, and an optional standard 20% import-VAT estimate using explicit GBP inputs. It does not determine preference eligibility, suspensions, quotas, trade remedies, excise, special procedures or Northern Ireland treatment. UK results remain review-required.

Australia beta

Australia controlled-beta limitation

When the Australia gate is enabled, TariffCalc supports only its locked Schedule 3 eight-digit classification set, General Free/simple ad-valorem rates, optional standard 10% import GST using explicit AUD inputs, and optional standard Import Processing Charge tiers. It does not determine preferential eligibility, concessions, dumping/countervailing duties, safeguards, excise-equivalent customs duty, WET/LCT, biosecurity charges, quotas, permits or foreign-exchange conversion. Australia results remain review-required.

What remains outside automatic coverage

Other Section 232 families or origins, Section 122, antidumping and countervailing duties, safeguards, quotas, excise taxes, special entry fees, preference eligibility, Chapter 98 treatment and description-specific exclusions may change the amount. An uncovered or ambiguous condition is flagged for review instead of silently treated as zero.

Your inputs determine the result

The service does not determine a legally binding classification, origin or customs value. Verify that shipping and insurance are not counted twice, that the complete 10-digit statistical code is used where required, and that the selected date matches the intended entry or withdrawal date.

Dates and data releases matter

The beta calculates only dates covered by an installed published schedule and does not calculate future entry dates. A saved result preserves its source version; it does not update automatically when official rules change.

Support does not convert an estimate into advice

Product-support, correction, pilot or commercial conversations can explain TariffCalc behavior and record a concern, but they do not create a customs-broker, legal, tax or filing-advisory relationship.

Internal validation is not professional sign-off

TariffCalc validates source checksums, deterministic formulas, live official-data cases and fail-closed behavior internally. The beta does not claim an external customs-professional approval. For a material shipment, unusual facts or an actual filing, consult a licensed customs broker, qualified trade professional or the responsible authority.