CBP Form 4811 is the Special Address Notification. Importers use it to name a third party, such as their customs broker, to receive CBP notices of liquidation, bills and refunds on their behalf. It can also be done electronically in the ACE Portal.
What Is CBP Form 4811?
CBP Form 4811, Special Address Notification, lets an importer of record designate an agent, or "notify party", to receive notices of liquidation, bills and refunds. Once processed, entry summaries can name the notify party as the recipient. It matters even more now that CBP issues refunds electronically, including tariff refunds.
Who Uses CBP Form 4811?
- Importers of record who want a broker or other third party to receive CBP notices, bills or refunds
- Customs brokers acting as notify parties for clients
Key Rules at a Glance
| Topic | What applies |
|---|---|
| Purpose | Designate a notify party to receive notices of liquidation, bills and refunds |
| How to submit | By email to the importer's assigned Center of Excellence and Expertise, or in the ACE Portal Notify Parties tab (CBP's electronic equivalent) |
| ACE Portal | Since January 2, 2026, trade account owners can add notify parties directly. Edits and removals still go by email |
| Electronic refunds | From February 6, 2026, CBP issues refunds electronically. A designated third party must enroll in ACH refunds in its ACE Portal account |
| IEEPA refunds | CBP can refund only to the importer of record or the Form 4811 notify party with U.S. bank details in ACE |
How to File Form 4811
- Decide who should receive notices, bills and refunds.
- Complete Form 4811, or add the notify party in the ACE Portal Notify Parties tab.
- If refunds should go to the third party, make sure they enroll in ACH refunds in ACE.
- Check that entry summaries name the notify party where needed.
Related CBP Forms and Official Sources
Related forms: CBP Form 5291 (power of attorney) · CBP Form 400 (ACH debit application) · CBP Form 19 (protest)
Official sources:
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Frequently Asked Questions
What is CBP Form 4811?
It is the Special Address Notification that lets an importer designate a third party, such as a customs broker, to receive notices of liquidation, bills and refunds.
Can I file Form 4811 electronically?
Yes. CBP treats the ACE Portal Notify Parties tab as the electronic equivalent of Form 4811.
Does Form 4811 affect tariff refunds?
Yes. For IEEPA duty refunds, CBP says it can refund only to the importer of record or the Form 4811 notify party with U.S. bank information in ACE.
