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CBP Form 301: how to file the Customs Bond

Bought from a CBP-approved surety, usually through your customs broker, who files it electronically. A continuous bond covers a year of entries.

U.S. Customs and Border ProtectionUS federalUpdated October 15, 2026

Agency
U.S. Customs and Border Protection
Where it applies
US federal
How it's filed
Filed on the agency's portal
Fee
VariesNo CBP fee. The surety charges a premium; a continuous bond is at least $50,000 of coverage.
How long it takes
At least 5 business days for review.
Renewal
Continuous bonds renew yearly.

The form, line by line

LineWhat goes there
HeaderBroker filer code (when a customs broker files the bond)
Section ISingle transaction bond or continuous bond (not both)Single transaction bond / Continuous bond
Section ISingle transaction only: entry number (or ISF transaction number) this bond secures
Section ISingle transaction only: transaction date
Section ISingle transaction only: 4-digit port code
Section IContinuous bond only: effective date
Section II, code 1Activity code 1, importer or broker: limit of liability (whole dollars)Answer only the activity this bond covers: the answer ticks that box. A continuous bond is at least $50,000.
Section II, code 1aActivity code 1a, drawback payments refunds: limit of liability (whole dollars)
Section II, code 16Activity code 16, Importer Security Filing (ISF): limit of liability (whole dollars)
PrincipalPrincipal: full name and legal description, physical address (not a P.O. box) and state of incorporationOne per line: the name; the legal description and state (e.g. a Delaware limited liability company); street, City, ST ZIP.
PrincipalPrincipal's CBP identification number (EIN with its 2-digit suffix, e.g. 12-3456789-00, or the CBP-assigned number)
Section IIITrade names or unincorporated divisions that may use this bond, with their CBP identification numbersOne per line: CBP number, complete name (e.g. 12-3456789-01, Lotus Tea House LLC DBA Lotus Tea).

Official links

Checked against the agency's own page.

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