Supercargo

Guides and free tools

For Amazon sellers who import

Updated · By Joshua Giles, founder of Supercargo (JG Core Ltd)

The questions importers actually search for (duty, landed cost, refunds, the reports in ACE), answered with tools that work on your own numbers.

GuideIEEPA tariff refunds: who qualifies, deadlines and how to claimFive eligibility checks from CBP’s rules, the 80-day CAPE window, protests for older entries, and how to find your IEEPA duty.GuideCBP CAPE portal: how to file a CAPE DeclarationACE account and ACH set-up, the CSV format, CBP’s rejection messages explained, and the refund statuses.GuideTariff refund checks: who gets paid, how, and whenCBP pays importers by ACH, not cheque, 60–90 days after acceptance. Where shoppers, parcel recipients and importers each stand.GuideTariff refunds for businesses: the four routesIEEPA refunds through CAPE, post-summary corrections, protests and drawback: what each recovers, the deadline, and who files.GuideFedEx, UPS and DHL tariff refundsPaid duty to a courier? Who claims depends on whose name is on the entry. What each carrier has said, and when you file CAPE yourself.Kit · £49 / $59 / €55IEEPA Tariff Refund KitThe guide as a PDF, an entry tracker that dates every 80-day and 180-day window, ten questions for your broker, and a letter for DDP suppliers.StatisticsIEEPA tariff refund statistics 202650 sourced figures: $166 billion collected from 330,566 importers, what CAPE has accepted and paid, and the legal record.Cost guideWhat IEEPA refund filing costsPublished broker fees for CAPE refunds, per entry or as a percentage, with a worked example.ComparisonAlternatives for landed cost and dutyNine ways to get duty-inclusive cost per unit, from a free ES-003 spreadsheet to post-entry audits, with published prices.Free toolFBA reimbursement claim deadline calculatorRefunded but never returned, lost in a fulfilment centre, broken by the carrier: when each claim opens, when it closes, and what it is worth.GuideTariff stacking in 2026: how Section 232, 301 and the China duty add upThe layers, the rules by Chapter 99 note, and worked stacks from 27% to 53.4% on real kitchen and home codes.GuideCBP Form 7501 explained: from the entry summary to landed cost per unitAn annotated entry summary, block by block, and the arithmetic that turns it into a cost per unit.Guide + free analyserThe ES-003 report: find every dollar of IEEPA duty on your entriesRun the report in ACE, drop the file in, and see IEEPA duty by entry and which entries are still inside CBP’s refund window. Runs in your browser; nothing is uploaded.Free toolUS import duty and landed cost calculatorDuty on published HTSUS rates with every Chapter 99 line kept separate, and what the published file leaves out.Free downloadLanded cost spreadsheet template (Excel and Google Sheets)Per-SKU landed cost for a shipment: US customs value basis, Chapter 99 lines separate, MPF with its minimum and maximum, HMF on vessel shipments.Data2026 US duty rates for kitchen and home HTS codesThe full duty stack for China origin, code by code (general rate, Section 232, Section 301), each line sourced and dated.UK toolAir vs sea freight: the UK import duty on the air billUK customs value is CIF, so flying adds a statutory share of the air freight to the duty base. Eight worked cases.

Start with the audit

Your last twelve months of entries, reconciled to the unit, for a fixed £900$1,200€1,050. Refunded in full if the variance is under 2%.

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