#1 Single Transaction Bond vs Continuous Bond: Which Customs Bond Should You Buy?

The Wrong Bond Type Can Quietly Add Cost to Every Shipment

Once an importer realizes a formal entry needs a customs bond, the next question is usually: should I buy a single transaction bond or a continuous bond?

This is not just a compliance choice. It is an economics decision. The right answer depends on shipment frequency, duty exposure, and whether you are testing a product or operating a repeat import program.

The Two Main Customs Bond Types

Single Transaction Bond

A single transaction bond, often shortened to STB, covers one import transaction. It is usually considered when:

• You are importing once
• You are testing a supplier
• You have infrequent formal entries
• You do not want to commit to an annual bond yet

Continuous Bond

A continuous bond covers repeated activity over the bond term and is the standard choice for recurring importers. It is generally the cleaner option when:

• You import throughout the year
• You use more than one port
• You need a reusable compliance setup
• You want less bond friction on every entry

STB vs Continuous Bond Comparison

Topic	Single Transaction Bond	Continuous Bond
Coverage	One import transaction	Repeated entries during bond term
Best for	One-off or occasional imports	Recurring importers
Buying pattern	Per shipment	Usually annual
Cost structure	Per-entry premium	Annual premium
Admin burden	Repeated setup	One setup, then reuse
Port flexibility	Transaction specific	Better fit for repeated entries across operations

The Core Economic Question

The simplest decision framework is:

• If you expect one or two formal entries, STB may be cheaper
• If you expect ongoing importing, continuous usually becomes more efficient

That is because an STB has to be arranged again and again. A continuous bond spreads the fixed setup across many entries.

Real-World Decision Scenarios

Scenario 1: First product test

You are importing one $9,000 test shipment from a new supplier. You are not sure the product will reorder.

Best first look: Single transaction bond

Why: You do not yet know whether importing will become a recurring program.

Scenario 2: Amazon FBA replenishment model

You expect monthly or bi-monthly shipments.

Best first look: Continuous bond

Why: Repeated formal entries make the annual setup cleaner and usually more cost-effective over time.

Scenario 3: Seasonal importer

You import three large shipments per year around holiday inventory.

Best answer: Compare both

Why: Depending on value and premium quotes, the break-even point may go either way.

The Administrative Difference Matters Too

Many importers compare only premium. That misses the workflow cost.

A continuous bond helps because:

• The bond is already on file
• Your broker does not need to rework bond setup every time
• Scaling to additional entries is easier
• Multi-shipment operations get simpler

If your goal is to build a repeatable importing process, operational simplicity has value, even before you compare premiums.

How the Bond Amount Logic Differs

For planning purposes:

• A continuous bond typically keys off the prior year's duties, taxes, and fees, with a common minimum of $50,000
• A single transaction bond usually keys off the entered value plus duties, taxes, and fees for that one shipment

That means a shipment with very high duty exposure can make an STB quote look less attractive than expected.

When Continuous Bonds Usually Win

Continuous bonds usually become the better answer when:

• You import more than a couple of times per year
• Your goods arrive through multiple ports
• You want predictable repeat operations
• You are already building annual landed-cost budgets

For the cost mechanics behind those bond amounts, see Customs Bond Cost Guide.

Common Mistakes

Choosing STB because it feels "smaller"

That works only if the importing pattern actually stays small.

Buying a continuous bond too late

Some importers arrange multiple STBs in a short period, then realize they effectively recreated the cost of a continuous bond the hard way.

Ignoring tariff exposure

If your goods carry higher duties or trade-remedy duties, the bond discussion becomes more important, not less.

Quick Decision Table

Import Pattern	Usually Start Here
1 shipment	STB
2-3 shipments with uncertain future volume	Compare both
Monthly importing	Continuous
Multiple suppliers and repeated entries	Continuous
New importer testing market fit	STB first, then reassess

FAQ

Can a continuous bond cover more than one port?

Yes. That is one reason frequent importers prefer it. It is designed for ongoing import activity rather than one isolated entry.

Is a continuous bond always cheaper?

No. It is usually more efficient for recurring importing, but not always cheaper for a one-time shipment.

If I only import once this year, should I still get a continuous bond?

Usually not as a first assumption. Start by comparing a single transaction bond against the probability of repeat shipments.

Can I start with an STB and switch later?

Yes. Many first-time importers do exactly that. They use an STB for an initial shipment, then move to a continuous bond once the sourcing model becomes repeatable.

Pick the Bond Type That Matches the Business You Actually Have

Do not choose a bond type based on habit. Choose it based on shipment frequency, duty exposure, and whether the import program is experimental or recurring. TariffCheck helps you understand the full import-cost picture so bond decisions are made with real numbers, not guesswork. Estimate your shipment economics here.