Critical Deadlines: Entries typically liquidate at 314 days. Missing the 180-day protest deadline is an absolute bar to recovery.

    Check Your Entries Now

    Expert Post Summary Correction Filing Services

    Any pre-liquidation entry error — a wrong HTS classification, an undervalued shipment, a missed exemption, an overpaid tariff — can potentially be corrected through a PSC. The catch: the window is per-entry, and it doesn't wait for anyone.

    Reviewed by the Strix licensed brokerage team (U.S. customs broker, filer code 8ND) · Last reviewed August 14, 2026

    • File PSCs within 300-day window (15 days before liquidation)
    • Protest liquidated entries within 180 days
    • Licensed customs brokers with ACE expertise
    • Get your PSC assessment—know your potential recovery
    Get Your PSC Assessment
    • Licensed Since 2006
    • Millions of Entries Filed
    • Certified Direct Filing
    • Montana-Based

    What a Post Summary Correction Can Fix

    A Post Summary Correction lets you amend a customs entry before it liquidates — fixing the kind of errors that cost real money if they go uncorrected. That includes a misclassified HTS code, an incorrect valuation, a missed trade-agreement or exemption claim, and overpaid duties under any tariff program, including IEEPA, the forced-labor Section 301 tariffs, the expired Section 122 surcharge, and antidumping/countervailing duty (AD/CVD) entries.

    The catch doesn't change with the news cycle: you have to file before your entry liquidates, or the PSC option is gone for that entry — permanently. That's a standing rule, not a temporary one.

    Critical Numbers You Need to Know

    PSC

    Post Summary Correction process

    314

    Days until typical entry liquidation

    300

    Day PSC filing deadline

    180

    Days to protest after liquidation

    15+

    Days buffer needed before liquidation

    $0

    Your refund if you miss deadlines

    Expert Post Summary Correction Filing

    Comprehensive Entry Review

    We analyze your entries for classification, valuation, and duty errors — including classification, valuation, and certain tariff-program errors — identifying entries still inside the PSC window. As of August 2026, IEEPA recoveries run first through CBP CAPE, not as a PSC headline.

    ACE System Filing

    Our ACE-certified team handles all technical aspects of PSC submission, ensuring accuracy and compliance with CBP requirements.

    Liquidation Monitoring

    We track your entry liquidation dates, filing PSCs with sufficient time buffer to protect your refund rights.

    Documentation Support

    We prepare all supporting documentation, including legal basis for refund claims and duty recalculation worksheets.

    Extension Assistance

    When needed, we request liquidation extensions to preserve your filing rights while you gather documentation or a correction is finalized.

    Protest Filing

    For recently liquidated entries still within the 180-day window, we file formal protests to preserve refund claims.

    Don't Let Deadlines Destroy Your Refund Rights

    Day 0

    Entry Date

    Your import entry is filed
    Day 300

    PSC Deadline

    Last day to file PSC (15+ days before liquidation)
    Day 314

    Typical Liquidation

    Entry liquidates — PSC window closes; protest may still apply
    Day 494

    Protest Deadline

    180 days after liquidation — protest window typically closes

    Safe Zone

    Days 0-299: PSC filing available

    Warning Zone

    Days 314-493: Only protest option

    Dead Zone

    Day 494+: Administrative protest window typically closed; CIT may still be available in some cases

    Before Liquidation

    File PSC to preserve all options and maximize your refund potential.

    After Liquidation

    Only protest option remains with strict 180-day deadline.

    After 180 Days

    Administrative protest is typically closed. Court of International Trade review may still be available in limited cases — talk with a licensed broker.

    No Exceptions

    Federal law provides no relief for missed deadlines, regardless of circumstances. Missing the protest deadline usually bars recovery at CBP. Some matters can still be taken to the Court of International Trade.

    Simple Process, Transparent Pricing

    Our Process

    1. 01

      PSC Assessment

      We review your entries and calculate potential refunds
    2. 02

      Engagement

      Simple agreement with clear terms
    3. 03

      PSC Preparation

      Our experts prepare all filings
    4. 04

      ACE Submission

      We file through official CBP systems
    5. 05

      Monitoring

      We track status and handle CBP correspondence
    6. 06

      Refund Processing

      We ensure that all refunds are processed per regulatory guidelines

    Transparent Fee Structure

    • Initial assessment provided
    • $150 per PSC entry (includes up to 10 lines)
    • 200+ corrections minimum
    • No hidden charges or hourly billing

    Questions about pricing?

    Our team can provide a custom quote based on your specific needs.

    Get Custom Quote

    Common Questions About PSC Filing

    Any entry where duties, fees, or classifications need correction may qualify for a PSC. Entries that haven't liquidated can be amended through the PSC process.

    We can check liquidation status through ACE. Generally, entries liquidate 314 days after entry unless extended.

    Yes, if you are a self filer. The PSC must be filed by a licensed customs broker or self-filed if you self-file your customs entries. If you self-filed the original entry, you can self-file your PSC. Otherwise your PSC must be filed by a licensed customs broker.

    CBP typically processes PSC-related refunds within 90-120 days. Processing times may vary depending on volume and complexity.

    A PSC can correct duty overpayments from most tariff programs on an entry that hasn't liquidated yet — including IEEPA duties, the forced-labor Section 301 tariffs, and the expired Section 122 import surcharge, along with standard classification and valuation errors. Antidumping and countervailing duty (AD/CVD) entries follow additional rules, so those are worth a direct conversation with a broker. Learn more about the forced-labor Section 301 tariffs.

    Protect Your Refund Rights Today

    Your PSC and protest deadlines run on your entries' clocks, not the news cycle — miss one and that entry's recovery is gone for good. Find out where you stand before it is.

    • Know your correction options before deadlines close
    • Ensure proper filing before deadlines
    • Maximize your refund recovery
    • Avoid losing recovery rights to a missed deadline

    Get Your PSC Assessment

    Find out your potential refund amount and critical deadlines.

    We'll respond promptly with your personalized PSC assessment

    Why Choose Strix for PSC Filing?

    • Licensed Customs Brokers - CHB licensed since 2006
    • Certified direct filing capabilities
    • Proven Track Record - Millions of entries filed
    • Deadline Management - Certified direct filing expertise
    • Full Service - From assessment through refund receipt
    • National Coverage - All U.S. ports of entry

    Have questions? We're here to help.

    (406) 922-6600 · sales@strixsmart.com

    Related Services

    IEEPA Duty Refund Recovery

    As of August 2026, IEEPA recoveries run primarily through CBP's CAPE process. Strix consults on and prepares CAPE packages; the importer of record or original filer submits the declaration through ACE.

    Recover IEEPA duties through CBP's CAPE process

    Section 122 Import Surcharge

    Paid the 10% Section 122 surcharge on entries between February and July 2026? Understand how the surcharge worked, which exemptions applied, and whether a correction may be worth filing.

    Review the Section 122 surcharge

    Forced-Labor Tariff Overpayments

    Paying the new 10–12.5% forced-labor Section 301 tariff since July 24, 2026? Check whether your entries qualify for an exemption before they liquidate.

    See the forced-labor tariff exemptions