What is the difference between a single entry bond and a continuous bond?

A single transaction bond covers one entry and is purchased per shipment, sized to the entry's value plus duties; a continuous bond covers all your entries at all ports for a year, sized at a minimum of 10 percent of your annual duties, taxes, and fees. The cost structures differ completely: one scales with every shipment, the other is a flat annual premium. GingerControl's free customs bond calculator sizes the continuous bond from your actual duty numbers so the comparison starts from real inputs.

How many entries per year make a continuous bond worth it?

Run the break-even: divide your annual continuous bond premium by your true all-in cost per single transaction bond, including the ISF bond and any per-bond broker handling fee. The result is the entry count where continuous wins, and for most importers with regular shipments it lands surprisingly low, often in the single digits to low teens of entries per year. Ask your surety for both quotes and do the division before defaulting to per-shipment bonds.

What hidden costs come with single transaction bonds?

Three that importers routinely miss: a separate ISF bond requirement on ocean shipments that continuous bonds include automatically, per-bond broker handling charges that stack on every shipment, and higher STB sizing on entries subject to stacked tariffs because the bond covers value plus duties. Under today's tariff stack, that last one quietly inflated STB costs across the board. The comparison is never premium versus premium alone.

How is a continuous bond amount calculated?

The standard formula is 10 percent of the duties, taxes, and fees you paid in the previous 12 months, with a $50,000 minimum, rounded per surety conventions. Stacked tariffs push that duty base up fast, which is how importers hit bond saturation and CBP insufficiency notices. GingerControl's bond calculator runs the sizing math, and our bond sufficiency guide covers the saturation problem for importers already holding a continuous bond.

Do I still need single transaction bonds after buying a continuous bond?

Rarely, the continuous bond covers regular entries at every port, but certain situations still call for an STB, such as some FDA-regulated or high-risk entries where CBP requires enhanced bonding. Treat those as exceptions to price case by case rather than a reason to stay on per-shipment bonds. Your broker should flag the exceptions; your default should be whichever side of the break-even you sit on.

Should a new importer start with single entry bonds?

Only if genuinely importing a handful of shipments with no growth expected, the first rung of the Bond Decision Ladder. The mistake is staying on that rung out of inertia: import volume grows, per-shipment bonds keep getting bought, and nobody reruns the math. Put a reminder on the fourth shipment. GingerControl works with importers on exactly this kind of spend hygiene as part of its financial-visibility work, where bond costs sit alongside duty and fees in one managed view.

Single Entry Bond vs Continuous Bond: Finding Your Break-Even Point

GingerControl compares single entry bonds vs continuous customs bonds: the break-even entry count, the hidden STB add-ons, and the decision ladder for growing importers.

Chen Cui· Co-Founder of GingerControl· July 22, 2026

Connect with me on LinkedIn! I want to help you :)

Reviewed by: Michael Weick, LCB / CCS

Customs compliance manager with 42 years of experience (ex Subaru of America, Merck, and Motorola).

TL;DR

The single-entry versus continuous bond decision is a break-even calculation, not a rule of thumb: price both from your surety, count the hidden single-transaction add-ons like ISF bonds and per-bond broker handling, and the continuous bond usually wins earlier than importers expect, often within a single quarter of regular importing.

Which bond should you buy, single entry or continuous?

Whichever side of the break-even you sit on, and the break-even is a five-minute calculation most importers never run. A single transaction bond (STB) is bought per shipment; a continuous bond is a flat annual premium covering every entry at every port. The decision is pure arithmetic once you have two quotes and an honest count of the STB's hidden add-ons.

The bond decision is a break-even calculation: annual continuous premium divided by true all-in cost per single transaction bond equals the entry count where continuous wins. The all-in STB cost must include the separate ISF bond on ocean shipments and per-bond broker handling, which is why the real break-even usually arrives earlier than the premium-only comparison suggests, and why importers who "aren't big enough for a continuous bond" often already are.

Last updated: July 2026

What each bond costs, structurally

Factor	Single transaction bond	Continuous bond
Covers	One entry, one port	All entries, all ports, 12 months
Sizing	Entry value plus all duties and fees	At least 10% of prior-12-month duties, taxes, fees; $50,000 minimum
Pricing	Per shipment, scales with entry size	Flat annual premium
ISF bond (ocean)	Separate add-on per shipment	Included
Broker handling	Often charged per bond issued	None per entry
Tariff-stack sensitivity	Every STB grows with stacked duties on that entry	Grows at renewal via the 10% base, see the bond saturation guide

Two structural notes. First, today's stacked tariff environment inflates both sides, but it inflates STBs on every shipment immediately, while the continuous bond absorbs the increase once a year at renewal. Second, what bonds are and why CBP requires them is covered in our customs bonds explainer, this page is only the purchase decision.

The Break-Even Entry Count

Quotable insight: The bond break-even is the cheapest recurring decision in importing to get right and the most common to never revisit: annual continuous premium divided by all-in STB cost, where all-in means bond plus ISF bond plus per-bond broker handling. Importers buy their first STB for a first shipment, the setting becomes the default, and years later a company clearing an entry a week is still paying per-shipment bonding that a five-minute division would have retired.

Run it with your own numbers, the formula needs three inputs:

Continuous quote: annual premium for your required bond size, run your duty numbers through the free customs bond calculator to get the size before calling the surety
All-in STB cost: bond premium + ISF bond (ocean) + broker handling per bond, from your last three broker invoices, the broker invoice audit method applies here
Divide: premium ÷ all-in STB cost = break-even entries per year; compare against your actual entry count from last year's entry data

The Bond Decision Ladder: a handful of one-off shipments, STBs are fine; regular importing at any real cadence, run the break-even; growing volume with stacked-tariff exposure, continuous plus an annual sufficiency check so CBP's insufficiency letter never surprises you.

Where bond costs fit the bigger picture

Bond premiums are small next to duty, which is exactly why they escape management, they are the classic unowned line in customs spend. GingerControl is a trade compliance AI platform that helps importers, exporters, and customs brokers classify products, simulate tariff costs, and track policy changes, and its financial-visibility work puts bond costs, duty, and fees in one entry-grounded view per entity. Size your bond with the free calculator, and if the bigger spend picture is the real question, talk to our team, the free 30-minute compliance audit covers bonding posture alongside duty.

References

[REF 1] U.S. Customs and Border Protection, bond requirements under 19 CFR part 113 Data cited: single transaction and continuous bond structures, sizing conventions Source: 19 CFR part 113

[REF 2] GingerControl, continuous bond sufficiency analysis Data cited: 10 percent of duties/taxes/fees sizing basis and saturation dynamics under stacked tariffs Source: Bond saturation guide

Written by

Chen Cui

Co-Founder of GingerControl

Building scalable AI and automated workflows for trade compliance teams.

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Frequently Asked Questions

What is the difference between a single entry bond and a continuous bond?: A single transaction bond covers one entry and is purchased per shipment, sized to the entry's value plus duties; a continuous bond covers all your entries at all ports for a year, sized at a minimum of 10 percent of your annual duties, taxes, and fees. The cost structures differ completely: one scales with every shipment, the other is a flat annual premium. GingerControl's free customs bond calculator sizes the continuous bond from your actual duty numbers so the comparison starts from real inputs.
How many entries per year make a continuous bond worth it?: Run the break-even: divide your annual continuous bond premium by your true all-in cost per single transaction bond, including the ISF bond and any per-bond broker handling fee. The result is the entry count where continuous wins, and for most importers with regular shipments it lands surprisingly low, often in the single digits to low teens of entries per year. Ask your surety for both quotes and do the division before defaulting to per-shipment bonds.
What hidden costs come with single transaction bonds?: Three that importers routinely miss: a separate ISF bond requirement on ocean shipments that continuous bonds include automatically, per-bond broker handling charges that stack on every shipment, and higher STB sizing on entries subject to stacked tariffs because the bond covers value plus duties. Under today's tariff stack, that last one quietly inflated STB costs across the board. The comparison is never premium versus premium alone.
How is a continuous bond amount calculated?: The standard formula is 10 percent of the duties, taxes, and fees you paid in the previous 12 months, with a $50,000 minimum, rounded per surety conventions. Stacked tariffs push that duty base up fast, which is how importers hit bond saturation and CBP insufficiency notices. GingerControl's bond calculator runs the sizing math, and our bond sufficiency guide covers the saturation problem for importers already holding a continuous bond.
Do I still need single transaction bonds after buying a continuous bond?: Rarely, the continuous bond covers regular entries at every port, but certain situations still call for an STB, such as some FDA-regulated or high-risk entries where CBP requires enhanced bonding. Treat those as exceptions to price case by case rather than a reason to stay on per-shipment bonds. Your broker should flag the exceptions; your default should be whichever side of the break-even you sit on.
Should a new importer start with single entry bonds?: Only if genuinely importing a handful of shipments with no growth expected, the first rung of the Bond Decision Ladder. The mistake is staying on that rung out of inertia: import volume grows, per-shipment bonds keep getting bought, and nobody reruns the math. Put a reminder on the fourth shipment. GingerControl works with importers on exactly this kind of spend hygiene as part of its financial-visibility work, where bond costs sit alongside duty and fees in one managed view.

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