# Single entry vs continuous customs bond: which do you need
Every ocean shipment into the United States needs a customs bond behind it, and the choice between a single entry vs continuous customs bond is one of the first real decisions a new importer makes. Get it wrong and you either overpay for coverage you do not need or scramble to arrange a bond while your container sits at the port.
A customs bond is a financial guarantee to US Customs and Border Protection. It promises that if duties, taxes, or penalties go unpaid, the surety company behind the bond pays CBP and collects from you later. CBP requires it because they release most cargo before the final duty calculation is settled. The bond is what lets that trust-based system work. Understanding the single entry vs continuous customs bond choice starts with this guarantee function, because both bond types do the same job and differ only in duration and pricing.
What a customs bond actually does
Think of the bond as CBP's insurance policy on your shipment, except you pay the premium. When your goods arrive, CBP wants assurance that the duties owed will actually get paid, that you will comply with regulations, and that any penalties assessed can be collected. The bond provides that assurance.
Without a valid bond, your goods do not clear. The broker cannot file the entry, the container stays at the terminal, and storage charges start accumulating. This is why the bond question comes before the shipment, not after. First-time importers who discover the bond requirement when the vessel is already at sea end up paying rush fees and learning about the process under pressure.
The bond does not pay your duties for you. That is a common misunderstanding. You still pay the duties; the bond just guarantees to CBP that the money exists. If a penalty gets assessed against you, for an ISF violation, say, the surety pays CBP and then comes to you for reimbursement. The bond protects CBP, not you.
Single entry bonds: how they work
A single entry bond covers one shipment. It is purchased for a specific entry, tied to that entry's value and details, and it expires when that entry is done. If you import twice a year, you buy two bonds, one per shipment.
The cost scales with the shipment. Single entry bonds are priced per transaction, so a small shipment costs less to bond than a large one. For importers who ship rarely, this is the economical choice: you pay only for the coverage you use, when you use it.
The trade-off is administrative. Every shipment needs its own bond arranged before arrival. Your broker can usually set this up, but it is one more thing to coordinate per shipment, and rush arrangements cost more. This per-shipment rhythm is the defining trait on the single entry side of the single entry vs continuous customs bond comparison. There is also less room for error: if a penalty lands on a single entry bond, that bond's coverage is what stands behind it, and the next shipment needs a fresh one regardless.
Single entry bonds also interact with the ISF. The ISF filing has to be covered by a bond too, and importers using single entry bonds need that coverage arranged for each shipment. This is another detail to confirm with your broker rather than assume, because an ISF filed without proper bond coverage behind it creates its own problems.
Continuous bonds: how they work
A continuous bond covers all of your entries for a full year. You buy it once, it stays in force for twelve months, and every shipment you import during that period rides on the same bond. Renew it annually and you never think about bonding per shipment again.
This is the standard choice for regular importers. If you bring in goods monthly, or even several times a year, the continuous bond is simpler and usually cheaper than buying single entry bonds one at a time. One purchase, one renewal date, coverage for everything.
The continuous bond also covers your ISF filings for the year, which removes a recurring coordination item. And because it is always in force, there is no per-shipment scramble: the bond is simply there when the broker needs it. For businesses with steady import volume, that reliability is worth as much as the cost savings. Always-on coverage is the strongest argument on the continuous side of the single entry vs continuous customs bond debate.
There is one structural point to understand. A continuous bond has a set coverage amount for the year, and CBP can require a higher amount if your import volume or duty exposure grows. If your business scales fast, your broker should review whether the bond amount still fits. An under-bonded importer can face demands for additional security at an inconvenient moment.
Single entry vs continuous customs bond: the cost comparison
The single entry vs continuous customs bond math is straightforward once you know your shipment frequency. A continuous bond is an annual purchase. Single entry bonds are per-shipment purchases. Somewhere between a handful of shipments a year, the annual bond becomes cheaper than the stack of single entry bonds, and the exact crossover depends on your shipment values and your surety's pricing. Run the single entry vs continuous customs bond numbers on your own volume before deciding; rules of thumb are no substitute for a broker quote.
But cost is not the whole comparison. The continuous bond also buys administrative simplicity: bonds arranged once instead of per shipment, no rush fees, ISF coverage handled for the year. For a business importing monthly, the time saved coordinating bonds across twelve shipments has real value beyond the premium difference.
There is also a risk dimension. Penalties assessed against a continuous bond draw on the same annual coverage, which is fine until the claims stack up. Importers with compliance problems sometimes find their surety unwilling to renew, which is a business problem, not just a cost problem. Keeping filings accurate protects the bond relationship the same way it protects everything else.
The practical way to compare: ask your broker to price both for your actual situation. Give them your expected shipment count and values for the year, and get a quote for a continuous bond alongside the per-shipment cost of single entry bonds. The numbers will make the single entry vs continuous customs bond decision obvious, and the broker does this comparison routinely.
Which one do you need
Import once or twice a year, with no plans to scale: single entry bonds. You pay per shipment, you avoid an annual commitment, and the administrative overhead of arranging a bond per shipment is trivial at that volume.
Import several times a year or more: continuous bond. The math favors it, the administration disappears, and your ISF filings stay covered. This is where most growing import businesses land, usually after their second or third shipment makes the per-shipment routine feel silly.
Import regularly but with lumpy, unpredictable timing: continuous bond anyway. The annual coverage means a surprise shipment does not trigger a scramble, and the cost difference at moderate volume is small enough that the convenience wins.
New importer, first shipment, unsure about the future: start with a single entry bond and revisit after the first few shipments. There is no penalty for switching later. Many importers start single entry, and the moment they find themselves importing quarterly, they switch to continuous and never look back. That upgrade path is the most common resolution to the single entry vs continuous customs bond question in practice.
One more consideration: if you import through multiple brokers or forwarders, a continuous bond in your company's name covers entries filed by any of them. With single entry bonds, each broker arranges their own per shipment, which works but adds coordination. Centralized coverage is another quiet advantage of the annual bond.
Conclusion
The bond decision follows your shipment frequency, and that is the whole single entry vs continuous customs bond question in one sentence. Occasional importers do fine with single entry bonds bought per shipment. Anyone importing regularly should hold a continuous bond for the year and stop thinking about it. Either way, arrange the bond before the vessel sails, confirm ISF coverage with your broker, and revisit the choice when your volume changes. The bond amount should be reviewed as the business scales, because an under-bonded importer finds out at the worst possible moment.
FAQ
### What is the difference between a single entry and a continuous customs bond?
A single entry bond covers one specific shipment and expires when that entry closes. A continuous bond covers all of an importer's shipments for a full year. The single entry vs continuous customs bond choice comes down to shipment frequency: rare shippers buy per shipment, regular shippers buy annually, and the single entry vs continuous customs bond math in the article above shows how to find your crossover point.
### How many shipments make a continuous bond worth it?
It depends on your shipment values and your surety's pricing, but the crossover usually sits at a handful of shipments per year. Ask your broker to price both options against your expected volume. Most importers shipping quarterly or more find the continuous bond cheaper and simpler.
### Does a continuous bond cover ISF filings?
Yes, a continuous import bond generally covers ISF obligations for the year, which is one of its administrative advantages. Importers using single entry bonds need ISF coverage arranged per shipment. Confirm the specifics with your broker, since bond terms and CBP requirements change.
### Can I switch from single entry to continuous later?
Yes, and many importers do exactly that. Start with single entry bonds while your volume is uncertain, then move to a continuous bond when the shipment count justifies it. There is no penalty for switching; it is a routine change your broker handles. Switching is so common that most brokers treat the single entry vs continuous customs bond decision as temporary by default.