Entry Duty Calculator Changelog

May 2026

Entry-form UX: layout, inputs, toggles, and validation

• Country of Origin dropdown now shows the full ISO-3166 country list.

April 2026

US Section 232 — steel and aluminum (including derivatives)

• Implemented the April 2026 Section 232 Annex revision, overhauling how metals tariffs stack.
• Annex 2026 calculations now auto-add aluminum, copper, and Annex I-B derivative materials so you do not have to enter them manually.
• Added HS 7602 and 7603 (aluminum waste/scrap and powders) to the Section 232 aluminum rules.
• Aluminum entries with unknown processing country are now treated as Russia-origin for Annex 2026, producing the conservative high duty.
• Annex 2026 duties on US-processed aluminum are now treated as material penalties rather than ignored.
• Section 232 UK and US reduced rates now check the total product threshold before applying.
• Fixed a false-positive less-than-15% metal exemption and stopped the calculator from auto-adding Russia aluminum where it should not for Annex 2026.
• Several Annex 2026 fixes covering material auto-addition, exclusion handling, and rate selection.
• Weight-threshold exempt entries (less than 15% metal) no longer incorrectly suppress the Section 122 surcharge.
• Motorcycle exclusion 9903.82.13 now correctly zeroes the 200% Russia aluminum penalty.
• Fixed a Section 232 steel rate that was displaying 50% for entries dated before June 4, 2025; the historical rate is now applied.
• When an HS code falls under a multi-metal Annex 2026 prefix, the calculator now preserves all relevant metals rather than dropping some.
• Added support for exclusion code 9903.82.01 for Section 232 entries with no metal content.

US Section 232 — automotive and auto parts (including USMCA interaction)

• Calculator now outputs the Section 232 Auto exclusion code for non-automotive products that fall in the same HS range.
• Calculator synthesizes the Section 232 Auto exclusion code on entries used for non-automotive purposes so you see it as a claimable option.
• Restored Section 232 Auto Parts duties on HS codes that fall outside the narrow automotive list when used in autos.
• When Section 232 Auto applies, the calculator now suppresses Annex 2026 metals duties on those same auto parts to avoid double duty.
• When the motorcycle exemption fully suppresses Section 232, the Section 122 10% surcharge is now still applied.
• The automotive Section 232 HS-code fallback now only fires when the entry date is within the Section 232 Auto effective dates.

US Section 232 — wood, timber, and furniture

• Narrowed the Section 232 timber HS prefix from all of 9403 to wooden-only subheadings, preventing over-application to non-wood furniture.

IEEPA reciprocal and country-specific tariffs

• Corrected the EU reciprocal tariff rate for the August 7-17, 2025 window.
• Corrected the China and Hong Kong reciprocal tariff start date to April 9, 2025.
• Corrected the China reciprocal tariff May 13, 2025 boundary so entries on either side use the right rate.

USMCA, Mexico, and Canada coverage

• Added Mexico and Canada tariff strategies, allowing the calculator to compute duties when the destination is MX or CA.

EU and customs union destination support

• Expanded the calculator to support 122 countries via a country-strategy pattern.
• Added a full EU tariff stacking strategy so the calculator can compute duties for EU member-state destinations using the common external tariff.

Section 301, Section 122, and other US trade remedies

• Expired Section 301 Chapter 99 code 9903.91.04 and added the display name for 9903.91.06.
• Russia NTR-suspension Chapter 99 code is now displayed for Column 2 rates.

Chapter 99 display names and exclusion code visibility

• Chapter 99 display names regenerated from the canonical USITC spreadsheet.
• Chapter 99 header descriptions updated to Altana canonical names.

Entry-form UX: layout, inputs, toggles, and validation

• IEEPA toggle is now shown but disabled when it is not relevant for the entry.
• Calculator now warns you when an entered HS code has validity concerns.

HS code handling: validation, prefix matching, and HS98

• Calculator now supports historical HS codes by filtering on entry date.

Partner branding (Expeditors, Kuehne+Nagel, Scarbrough)

• Added Kuehne+Nagel brand configuration to the entry duty calculator.

Tariff rate priority, sort order, and CBP ACE compliance

• Calculator now merges regulatory effective dates into period boundaries so rate changes line up with effective dates.

Errors, edge cases, and reliability

• Calculator API now returns the correct HTTP status code on error paths so embedded callers can react properly.

March 2026

US Section 232 — steel and aluminum (including derivatives)

• Russia aluminum line items that the calculator adds on a full-shipment basis are now flagged so you can tell which lines were auto-added.
• Section 122 surcharge now applies when the Section 232 steel rate is 0% for US-origin material.
• 9903.81.92 steel US melt/pour code now displays for same-country US country-of-origin imports.

US Section 232 — automotive and auto parts (including USMCA interaction)

• Section 232 penalty duties now surface their possible exclusion codes so you can see what to claim.

US Section 232 — semiconductors

• Fixed three output issues affecting Section 232 Semiconductor calculations.
• When you answer No to the Section 232 Semiconductor toggle, the calculator now emits exclusion code 9903.79.02.

US Section 232 — wood, timber, and furniture

• Section 232 wood furniture penalty is now restricted to four specific HS10 codes rather than broader prefixes.
• Removed HS prefix 4409 from the Section 232 timber program so prepared wood is not over-tariffed.
• Added country-specific Chapter 99 codes for Section 232 on kitchen cabinets and vanities.

IEEPA reciprocal and country-specific tariffs

• Calculator now scales correctly under high-volume use.
• Updated changed tariff codes for Brazil IEEPA.
• When both flat and conditional reciprocal tariffs exist for an HS code, the calculator now filters out the flat variant.
• Reciprocal on-water exemption now respects an entry deadline.
• Corrected the reciprocal on-water exemption (9903.01.28) entry deadline from August 7 to June 17.
• Added a retroactive correction so EU reciprocal tariffs use the IEEPA format for the affected window.

USMCA, Mexico, and Canada coverage

• Date-gated the USMCA IEEPA exclusions for Mexico and Canada so they only fire within the correct window.
• Calculator now injects the correct reciprocal exclusion code for Mexico and Canada USMCA entries.
• Free trade agreement claims are now preserved through Nexus preprocessing so they are honored downstream.

EU and customs union destination support

• When an HS code lookup misses for a customs-union member, the calculator now falls back to the union-level rate.
• Added Liechtenstein and Monaco to the supported destinations dropdown via customs-union aliasing.

Civil aircraft exemption (9903.02.76 and related codes)

• Added the correct Chapter 99 tariff code for the Switzerland civil aircraft exclusion.
• EU derivative steel penalties now output civil aircraft exemption 9903.02.76 when applicable.

Section 301, Section 122, and other US trade remedies

• Section 301 exclusions now surface as user-declarable Additional Potential Codes so you can claim them.
• Added Section 122 to the CBP HTS sort order so it sorts correctly on the printable summary.

Annex II and reciprocal exclusion handling

• Prevented false-positive deduplication when injecting reciprocal exclusion codes.

Chapter 99 display names and exclusion code visibility

• Added USITC display-name mapping so Chapter 99 codes show their official short names.

Entry-form UX: layout, inputs, toggles, and validation

• Date inputs are now validated and invalid dates are handled gracefully.

HS code handling: validation, prefix matching, and HS98

• HS codes starting with 98 (Chapter 98) are now filtered out of the calculator.

Tariff flags (ADD/CVD/Quota) and special handling

• Calculator now synthesizes the MHDVP penalty when it is missing from the underlying data source.

February 2026

US Section 232 — steel and aluminum (including derivatives)

• Fixed Column 2 base-rate selection and corrected Section 232 aluminum penalty calculations.
• For GB origin, the generic Section 232 aluminum rate now applies before any UK-specific penalty rate.
• India steel imports past the in-transit window now use the correct Section 232 exclusion code 9903.01.87.
• 200% Russia aluminum penalty no longer applies when aluminum composition is 0%.
• When a material composition is not provided, the calculator now defaults to the worst-case 100% composition rather than skipping the penalty.

US Section 232 — automotive and auto parts (including USMCA interaction)

• When Section 232 Auto Parts suppresses IEEPA on a Brazil entry, the calculator now correctly outputs the 9903.01.83 IEEPA Brazil exclusion code.
• Suppressed the automotive exclusion code 9903.94.06 when Section 232 Semiconductor is active.
• Fixed GB Section 232 Auto Parts stacking issues that produced wrong totals.
• Calculator now infers whether a product is for automotive use from its HS code when you do not select it.
• Section 232 Auto and Medium-and-Heavy-Duty Vehicle Parts (MHDVP) penalties are now filtered by automotive-use classification.
• When MHDVP applies, it now takes precedence over Section 232 Aluminum penalties.
• When the Section 232 Auto or MHDVP override is active, all aluminum penalties are suppressed.
• Fixed post-IEEPA termination filtering and corrected automotive inference for laptop HS codes.

US Section 232 — semiconductors

• Improved Section 232 Semiconductor HS6 inference and corrected the exclusion code shown.

US Section 232 — wood, timber, and furniture

• Fixed an issue where timber Section 232 duties were appearing twice on the same entry.
• Corrected the HS codes and rates used for timber Section 232.
• Reclassified wood Section 232 duties as whole-good duties and switched the materials input to a dropdown for these entries.
• Country-specific Section 232 wood furniture tariff codes are now auto-applied based on country of origin.
• Added kitchen cabinets, vanities, and country-specific wood penalties to the recognized wood-penalty list.

IEEPA reciprocal and country-specific tariffs

• Fixed reciprocal tariff date-based formula and the zeroing of base rates when reciprocal applies.
• Fixed Japan reciprocal bug-window handling for base-rate zeroing and the in-transit exemption.
• Corrected IEEPA naming for EU, Japan, and Korea reciprocal tariffs.
• IEEPA Brazil exclusion is now emitted on its exact effective date rather than the day after.
• Handled the IEEPA India (9903.01.84) termination effective February 7, 2026.
• Fixed several IEEPA transit-exemption issues affecting China tariff codes.
• Closed reciprocal tariff coverage gaps across all countries and improved civil-aircraft exemption handling alongside it.
• Reciprocal tariff codes are no longer emitted on entries dated before the program's effective date.
• Prevented duplicate reciprocal exclusion codes from appearing in the output.
• Added 129 missing Executive Order codes to the Brazil Annex I(a) product list under 9903.01.81.

USMCA, Mexico, and Canada coverage

• Fixed several USMCA Canada tariff calculation issues.
• Canadian energy duties now use the government's official list, and softwood lumber uses the correct rate.

Civil aircraft exemption (9903.02.76 and related codes)

• Implemented the civil aircraft exemption in the entry duty calculator.
• Added an effective-date check for the GB civil aircraft exemption (9903.96.01).
• EU civil aircraft exemption now returns the correct 9903.02.76 code for copper.
• Civil-aircraft-use is now only auto-inferred for Chapter 88 HS codes, eliminating false positives elsewhere.
• Automotive use and civil aircraft use auto-inference are now mutually exclusive.

Section 301, Section 122, and other US trade remedies

• Fixed Section 301 composite-rate double counting in the output.
• Section 301 now uses the AddDuty notes rate, preventing duplicate Section 301 lines.
• Added Section 122 (import surcharge) support to the calculator.
• Added missing Section 122 exclusion codes to the Additional Potential Codes UI.

Annex II and reciprocal exclusion handling

• Added missing Section 232 exclusion codes for copper.
• Fixed Annex II exclusion handling for copper HTS 7419.80.5050 after Section 232 applies.
• Corrected country-of-origin restrictions and date boundaries on Annex II exemptions.
• Preserved leading zeros on HS codes when emitting Annex II exclusions.
• Closed Annex II exclusion gaps across all five tariff programs.
• Corrected Annex II exclusion handling and migrated each program's product list to YAML for auditability.
• Country-specific reciprocal exclusions are no longer applied to Section 232 material lines.

Chapter 99 display names and exclusion code visibility

• Added broader tariff exemption and exclusion code support to the calculator.
• Informational material exclusions are now user-declarable rather than auto-applied.

Entry-form UX: layout, inputs, toggles, and validation

• Renamed the "Unit Count" field to "Quantity".
• Moved the Unit Count field to the main form and added a dynamic unit-type label.
• Rearranged the entry form layout and added exclusion-codes UI.
• Material composition inputs now accept leading zeros.
• Renamed "Special Program" to "Preferential Tariff Programs" in the UI.
• Material composition entries now accept 0% values.
• Material composition fields now reset when the input is cleared.
• Added an IEEPA tariff zeroing toggle to the entry duty calculator.
• Expanded DR-CAFTA textile exclusion handling and now require an explicit FTA claim from you.

Per-unit, compound, and ad-valorem-equivalent duty handling

• Fixed compound duty rate calculations for rates that omit an explicit calculation method.
• Added an ad-valorem-equivalent rate to the compound duty display.
• Stale duty results are now cleared when you switch to a per-unit HS code.
• Per-unit duty rates now preserve full numeric precision instead of rounding.

HS code handling: validation, prefix matching, and HS98

• Increased the HS-code search debounce to reduce API load and flicker.
• Calculator now blocks duty calculation for HS10 codes that require a secondary HS10.

Materials, composition, and material penalty handling

• Materials with undefined composition are now filtered out at all API call sites.

Comparison grid, deep linking, and presentation

• Fixed mobile text cutoff in the duty calculator card title.
• Synced the comparison grid with the main calculator output and fixed a tooltip.

Tariff flags (ADD/CVD/Quota) and special handling

• Fixed an Australia FTA tariff stacking issue.

Errors, edge cases, and reliability

• Duty totals are now displayed based on data presence rather than internal status, so partial results no longer flash empty.

January 2026

US Section 232 — steel and aluminum (including derivatives)

• Added Section 232 steel derivative penalties to the calculator's recognized duty list.
• Fixed multiple Section 232 steel and aluminum stacking issues that produced incorrect totals.
• Fixed UK steel penalty incorrectly applying to all non-US steel; it now applies only when the steel is UK-origin.
• Corrected the Chapter 99 code used for the US steel melt-and-pour exemption.

US Section 232 — automotive and auto parts (including USMCA interaction)

• Goods classified as subject to Section 232 Auto are now correctly assessed even when USMCA is claimed, for entries on or after October 17, 2025.
• IEEPA duties are no longer applied when the Section 232 Auto override is active.
• Calculator no longer auto-adds materials when the Section 232 Auto override is active.

US Section 232 — semiconductors

• Implemented Section 232 Semiconductor and Logic IC tariffs in the calculator.
• Section 232 Semiconductor entries now correctly suppress Russia aluminum penalties.

IEEPA reciprocal and country-specific tariffs

• Added a loading-date input to support IEEPA in-transit exemptions and two key hard-coded loading-date rules.
• Fixed the reciprocal in-transit exemption for countries like Cambodia where it was not firing.

USMCA, Mexico, and Canada coverage

• USMCA calculations now filter out transship penalties; also corrected several subtle issues in non-USMCA cases.

Annex II and reciprocal exclusion handling

• Reciprocal exclusion now uses Annex II code 9903.01.32 for HTS 8473.30.5100.

HS code handling: validation, prefix matching, and HS98

• Section 232 penalties now apply via HS code prefix matching, not exact match.
• Replaced a confusing HS code error message with clearer guidance.

Partner branding (Expeditors, Kuehne+Nagel, Scarbrough)

• Applied Expeditors branding to the entry duty calculator.
• Additional Expeditors branding adjustments.

Tariff flags (ADD/CVD/Quota) and special handling

• Same-country (US-to-US) tariff calculations now run using the GEN tariff only.

Tariff rate priority, sort order, and CBP ACE compliance

• HTS code sort order now matches CBP ACE reporting requirements on the printable output.

Errors, edge cases, and reliability

• Fixed a double-fetch and double-render issue that was producing inconsistent output.
• Deduplicated special-program and FTA entries that were appearing twice on the same entry.

December 2025

Foundational launch of the entry duty calculator

• Released an embedded version of the entry duty calculator that renders without the Nexus navigation sidebar for use inside partner sites.
• Added stem, semantic, and text search to the HS code picker in the entry duty calculator.

US Section 232 — automotive and auto parts (including USMCA interaction)

• Section 232 automotive entries now show the proper Chapter 99 exclusion codes 9903.94.02, 9903.94.03, and 9903.94.06.

IEEPA reciprocal and country-specific tariffs

• Implemented CSMS #67045953 reciprocal tariff reporting changes.
• Implemented India's Russia-oil penalty in-transit exemption (9903.01.85).
• India IEEPA handling now adapts based on what underlying data is available.

USMCA, Mexico, and Canada coverage

• Removed confusing notes about how USMCA applicability was being inferred.

Materials, composition, and material penalty handling

• Improved material inference for unknown Section 232 penalties.

Conditional and threshold-capped tariff support

• Added data-driven support for conditional and threshold-capped tariffs (e.g., Korea reciprocal tariffs, EU Section 232 Auto).

November 2025

US Section 232 — steel and aluminum (including derivatives)

• Steel Section 232 duties no longer apply to entries dated before the program's effective date.
• Added steel melt/pour and aluminum smelt/cast processing-detail inputs to drive Section 232 calculations.
• Calculator now accepts structured aluminum and steel processing-rules inputs.

US Section 232 — automotive and auto parts (including USMCA interaction)

• Improved how the calculator captures whether a good is for automotive use, with better defaults across the form and the backend.

Annex II and reciprocal exclusion handling

• Annex II exclusion no longer incorrectly removes Section 301 tariffs.

Chapter 99 display names and exclusion code visibility

• Removed duplicate and invalid HS exclusion codes from the output.

Per-unit, compound, and ad-valorem-equivalent duty handling

• Fixed per-unit duty calculations so they no longer round to whole numbers.

Tariff rate priority, sort order, and CBP ACE compliance

• Improved pattern matching for conditional tariffs and penalty rules.

October 2025

US Section 232 — steel and aluminum (including derivatives)

• Added a country-of-smelt input so aluminum Section 232 calculations can reflect the smelt country, not just the country of origin.
• Added aluminum Section 232 processing-detail inputs and fixed several aluminum stacking issues.
• UK steel penalty now applies at 25% regardless of the steel's country of origin.

US Section 232 — automotive and auto parts (including USMCA interaction)

• Auto parts entries no longer also receive aluminum Section 232 duties; Section 232 Auto now takes precedence over Section 232 Auto Parts.
• Added behavior for goods that are subject to Section 232 Auto even when claiming USMCA.

US Section 232 — wood, timber, and furniture

• Added support for Section 232 wood tariffs.

Chapter 99 display names and exclusion code visibility

• Improved how tariff exclusions are surfaced in the calculator output.

Materials, composition, and material penalty handling

• Material penalty calculations no longer use country alone, and new unknown penalties are no longer auto-flagged.
• Fixed frontend-backend inconsistency and calculation errors for penalty materials.

Comparison grid, deep linking, and presentation

• Various duty calculator display fixes.

Errors, edge cases, and reliability

• Batch calculator API now degrades gracefully when tariff data is missing for some entries.
• Russia is now selectable in the country-of-origin dropdown.

September 2025

Foundational launch of the entry duty calculator

• Added the duty stacking calculator module that combines base duty rates with regime-specific surcharges.
• Strengthened the calculator's core calculation logic and broadened internal test coverage.
• Added validation and clearer naming for material composition inputs so you get cleaner errors when entering blends.
• Calculator now handles prohibited items, items that require special handling, and per-unit duty rates.
• Calculator now works for historical entry dates, not just today's date.

USMCA, Mexico, and Canada coverage

• Improved USMCA nullification logic so duties are correctly removed when the entry qualifies.
• Country-of-origin and USMCA logic were converted to a streaming model, reducing latency.

Annex II and reciprocal exclusion handling

• Fixed reciprocal tariff exclusions for goods covered by Annex II.

Chapter 99 display names and exclusion code visibility

• Calculator now displays which tariffs are excluded for an entry.

Materials, composition, and material penalty handling

• Consolidated materials without additional duties into a single line item to simplify the output.

Comparison grid, deep linking, and presentation

• Added the country duty comparison grid, deep linking into the calculator, and the Scarbrough partner logo.

Tariff flags (ADD/CVD/Quota) and special handling

• Improved how the calculator surfaces ADD, CVD, and quota flags.
• Fixed quota flag handling so quotas are correctly marked on the output.

Tariff rate priority, sort order, and CBP ACE compliance

• Reordered tariff rate priority so the correct rate wins when multiple programs apply.

Errors, edge cases, and reliability

• Removed silent failure paths so data errors surface to you instead of being hidden.
• Total duty is now reported as unknown when one of the inputs makes the monetary calculation incomplete.

August 2025

Foundational launch of the entry duty calculator

• First release of the entry duty calculator with country-of-origin support, USMCA claiming, basic PGA handling, and initial duty calculation.
• Introduced the tariff stacking backend endpoint that powers duty calculations.