In CSMS # 69428352, published August 3, 2026, CBP announced changes to the procedures for processing Post Summary Corrections (PSCs). These modifications were announced in Federal Register Notice 91 FR 41053, “Modification and Clarification of the National Customs Automation Program Test Regarding Post Summary Corrections” issued July 6, 2026.

Electronic Payment

Effective August 5, 2026, filers must electronically remit payment for increases in duties, taxes, and fees resulting from a PSC via Automated Clearinghouse (ACH). CBP will not accept checks or cash for any increase in duties, taxes or fees beginning August 5, 2026, resulting from a PSC.

Filers should visit Automated Clearinghouse on CBP.gov or contact ACH-CUSTOMS@cbp.dhs.gov to participate in either the ACH Debit or ACH Credit payment programs with CBP, or to obtain the specific information needed to submit a PSC payment to CBP.

A summary of the steps for payment submission using the ACH Debit or ACH Credit payment programs can be found in CSMS #69428352.

Full Payment of Additional Duties, Taxes, and Fees Requirement

Filers must remit payment in full for additional duties, taxes, and fees resulting from a PSC at the time of PSC submission or wait until CBP issues a bill reflecting the full amount of the increase at the time of liquidation. CBP will not accept partial payment of increased duties, taxes, and fees resulting from a PSC. If a filer decides to wait for billing at liquidation for the additional duties, taxes and fees to make payment, ACE will not allow the filer to submit subsequent PSCs until the initial PSC is paid.

Payment of Interest

CBP will not accept payment for interest on additional duties, taxes and fees prior to liquidation. Filers should only pay any interest after CBP issues a bill for the interest that is due on the PSC.

PSC Timeframe Filing Exceptions for Suspended Entries

A PSC may be filed outside of the 300-day timeframe, when the subject entry meets all of the following criteria:

• Liquidation of the entry is suspended beyond 300 days after the date of entry, and
• The entry has an associated suspension basis (such as Countervailing Duty (CVD) Suspend, Antidumping Duty (ADD) Suspend, AD/CVD Suspend, subject to Enforce and Protect Act (EAPA), or subject to court injunction) at the time of PSC filing.

This timeframe was implemented by CBP in 2022 following a decision by the U.S. Court of International Trade.

For further information about this and other Customs matters, contact George Tuttle III at geo@tuttlelaw.com or 415-986-8780.

The information in this article is general in nature and is not intended to constitute legal advice or to create an attorney-client relationship with respect to any event or occurrence and may not be considered as such.

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