Check what you actually paid on entries you already filed.
Every line recomputed at that entry’s own date and origin, then set beside what the rest of the trade paid on the same tariff line that month.
A single 7501 — the entry-summary form your broker files. About ninety seconds, no account. You get every line where the filed amount doesn’t match, every line we couldn’t price, and why.
A folder of them, as a .zip. Same reading on every entry, plus the part only a book can show: which correction windows — the dated deadlines to amend an entry you already filed — are closing, which entries were re-filed and what changed, and where one code was treated two ways across importers.
Or look at one first — both real, de-identified:
One entry → A whole book, 434 entries →
Who runs this, and the conflict. Built and run by Mrigank Singh, who also runs an India–US freight forwarder (Intoglo). That is an economic interest in this subject and it is stated here rather than found later. We do not file with CBP, take no fee on any refund, and take no money from anyone this measures. The disclosure in full.
What happens to your file. It is read on this server and never sent anywhere else. Your report is a private link that expires in 30 days unless you sign in to keep it, and a copy is archived here to improve the checker — never web-served, never sold. What we keep, and how to have it deleted.
Informational only — not legal or customs advice, and not a determination of what anyone owes or is owed. Only U.S. Customs and Border Protection determines the correct duty. Review every item with a licensed customs broker before acting. A figure you think is wrong: mrigank@intoglo.com — corrections are published in the corrections log, never quietly patched.