What the notice is
When CBP determines on review that a continuous bond no longer adequately protects the revenue, it issues a written insufficiency notice. The notice states the new minimum amount CBP will accept and gives the principal a defined cure window in which to file a larger replacement bond. CBP reviews bonds on a rolling basis; a notice typically follows a period in which duties paid outpaced the bond's sizing, a change in the merchandise or PGA profile, or a specific entry that exceeded the penal sum.
What happens if you do nothing
At the end of the cure window CBP renders the existing bond insufficient and refuses to accept further entries on it. Cargo already on the water arrives with no bond to enter against. The practical consequences are demurrage, storage, missed delivery windows and, for PGA merchandise, holds that compound daily. A lapsed cure is far more expensive than the premium difference on a larger bond.
How to cure it
- Do not take the number on the notice at face value. It is a floor, calculated on history. Your next twelve months may look different.
- Project forward. Have your broker pull the last twelve months of duties from ACE and adjust for known changes: new suppliers, tariff shifts, planned volume.
- Size above the projection. A replacement bond that just clears the notice invites the next notice. Leave room.
- File the replacement, not a rider. An increase in penal sum on a continuous bond requires a new bond, effective on a stated date; it is transmitted electronically by the surety.
- Confirm CBP has accepted it before the cure window closes. Your broker can see the new bond in ACE.
When the financials no longer support the bond
An insufficiency cure is routine when the principal's financial statements still support the program. When they do not — a start-up whose duties grew faster than its balance sheet, an importer with a recent claim, a business in transition — the standard market may decline the larger bond. This is where non-standard programs earn their keep. Customs-Bonds.com writes replacement bonds on a collateralized or guaranteed basis when the standard program cannot, and the bond is equally acceptable to CBP.
Insufficiency in a falling-tariff year
The post-Learning Resources environment cuts both ways. Importers whose 2025 duties were inflated by tariffs later invalidated may find CBP's formula now overstates their exposure; those importers can request a downward resizing at renewal. Importers whose volume grew during the same period may still receive notices based on the inflated history. In both cases the answer is the same: size to a forward projection, and document it.
Frequently asked questions
How long is the cure window on an insufficiency notice?
CBP sets a defined period in the notice, commonly 30 days. Treat the date as firm.
Can I cure with a rider instead of a new bond?
No. An increase in the penal sum of a continuous bond requires a replacement bond.
Will my premium go up?
Premium is rated on the penal sum, so a larger bond costs more; the increase is small relative to the cost of a lapsed bond.
