CBP Form 7501 Entry Summary Header & Value Block Auditor
Audits CBP Form 7501 Entry Summary blocks for importer of record, port code, entered value, and duty calculation accuracy.
Notice: engineering verification utility. Use test or de-identified data and verify results independently before relying on them.
How it works
Standard: CBP Form 7501 Instructions & ACE Customs Guidelines
Formula: Verify Block 27 (Duty), Block 28 (Tax), Block 29 (Other), and Block 30 (Total) calculations
Checks: Mathematical consistency across entry summary fee blocks
Calculated locally in browser memory; nothing leaves your browser.
Deterministic local-first client-side execution. Provided as-is without warranty.