The $800 duty-free allowance on imported parcels is gone. If you priced your products before that changed, your margins are built on numbers that no longer exist — and most sellers don’t find out until the accounts come in.

Landed Cost Rebuilder rebuilds the real cost of every product you import: supplier price, freight, duty, the broker fee spread across your shipment, platform fees and outbound shipping. Then it tells you which products are losing money, and the exact price that puts your margin back.

It goes further than any free calculator:

• The exact duty rate at which each product stops being profitable — know your exposure before a rate change, not after
• The cash a shipment ties up before a single unit sells, and how many units you must sell to get it back
• What you can safely pay yourself once tax and the next shipment are funded
• Compare three suppliers, countries or shipping methods side by side

Works for US, EU and UK importers — the EU ended its €150 duty-free exemption in July 2026.

Runs in any browser. Nothing to install, no account, no subscription. Your figures stay on your own device and it works offline. Includes demo data so you can try everything before entering anything real, plus backup and restore so your catalogue is never lost.

Includes a 4-page quick start guide.

Reprice one product correctly and it has paid for itself many times over.