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Customs Bonds Explained: Single Entry vs. Continuous Bonds

By ANKPOST Operations Team · 2026-06-12

What is a customs bond?

A customs bond is a contract between an importer, a surety company, and CBP that guarantees payment of duties, taxes, and fees owed on imported goods, required for most formal entries valued over $2,500 or for shipments subject to other agency requirements such as FDA or USDA holds. Independent dispatch data indicates that ACE entry filings without a valid bond on file are rejected at submission, and field-level tracking shows this is among the more common first-time-importer errors causing entry delays at West Coast ports.

In this article

Cost structure / standard tiers

Importers choose between a single-entry bond (covering one shipment) and a continuous bond (covering all entries over a 12-month period), with cost scaling differently for each.

Bond Type Coverage Typical Annual Cost
Single-entry bond One shipment, bond amount = entry value + duties/taxes $50-150 per shipment (minimum premium)
Continuous bond (minimum) All entries, 12 months, $50,000 minimum bond amount $300-500/year
Continuous bond (higher tier) 10% of prior 12-month duties/taxes/fees, above the $50,000 floor Scales above $500/year for higher-volume importers
Bond insufficiency penalty/replacement Bond amount too low for actual liability Re-filing fees + potential entry holds until corrected

CBP recalculates continuous bond sufficiency periodically based on actual duty payments, and importers whose duty liability grows (e.g., due to Section 301 tariffs) may need to increase their bond amount.

Risk mitigation / operational guidance

For importers making more than 3-5 entries per year, a continuous bond is almost always cheaper than stacking single-entry bond fees, and it also covers ISF bond requirements under one instrument. Review bond sufficiency annually, especially if the product mix shifts toward higher-duty categories such as goods subject to Section 301 tariffs, since an insufficient bond can trigger entry holds even for established importers. Work with a customs broker or surety provider that monitors bond sufficiency automatically rather than waiting for a CBP insufficiency notice, which arrives with a short cure window. Keep the bond's listed importer of record name and EIN current — mismatches between bond records and entry filings are a common cause of rejected ACE submissions. Note that switching surety providers requires advance notice and a transition period to avoid coverage gaps.

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