UPDATE (March 5, 2026): The IEEPA refund process is now court-directed. On March 4, CIT Judge Eaton ordered CBP to liquidate and reliquidate entries without IEEPA duties. Importers no longer need to file individual PSCs for IEEPA refunds. Read the latest: CIT Orders IEEPA Tariff Refunds; Appeal Expected. For background on the Supreme Court ruling, see our full analysis.
Post Summary Corrections: Your Window to IEEPA Tariff Refunds May Be Closing
The Supreme Court decision on IEEPA tariff validity could trigger billions in refunds—but only for importers who file the right paperwork before critical deadlines.
The $200 Billion+ Question Heading to the Supreme Court
Since 2018, U.S. importers have paid over $200 billion+ in tariffs imposed under the International Emergency Economic Powers Act (IEEPA). Now, the Supreme Court is reviewing whether these tariffs exceeded executive authority—and if they strike them down, importers who acted proactively could see massive refunds.
The catch? You must file Post Summary Corrections (PSCs) or protests within strict statutory deadlines, or you forfeit all refund rights permanently.
Understanding Post Summary Corrections
A Post Summary Correction (PSC) is a formal amendment to an import entry filed through ACE (Automated Commercial Environment). Think of it as placing a legal marker on your entry that says, "If the Supreme Court invalidates these tariffs, I want my refund."
Key PSC Facts:
- Must be filed before entry liquidation (typically 314 days after entry date)
- Requires filing at least 15 days before liquidation for CBP processing
- Preserves all refund rights if tariffs are struck down
- Can be filed by importers or their licensed customs brokers
- No penalty for filing if tariffs are ultimately upheld
Critical Deadlines You Cannot Miss
Understanding the timeline is crucial:
Before Liquidation (Days 0-299)
- Best Option: File PSC to preserve all rights
- Action Required: Submit through ACE system
- Cost: Minimal filing fees
- Success Rate: 100% if filed correctly
After Liquidation but Within 180 Days
- Only Option: File formal protest
- Action Required: Submit protest with supporting documentation
- Cost: Higher than PSC, requires more documentation
- Success Rate: Variable, depends on protest grounds
After 180 Days Post-Liquidation
- Options: None
- Refund Potential: $0
- Legal Remedies: None available
Why Timing Matters More Than Ever
The Supreme Court could announce its decision any day. When that happens:
- Immediate Rush: Thousands of importers will scramble to file PSCs
- System Overload: ACE systems may experience delays
- Broker Availability: Licensed brokers will be overwhelmed
- Processing Delays: CBP's 15-day processing requirement becomes critical
Importers who wait risk missing deadlines due to factors beyond their control.
What Entries Qualify for PSC Filing?
Any entry filed under IEEPA would qualify for a refund. Eligible entries include:
- Any entry where IEEPA authority was used for tariff imposition
- Entries subject to IEEPA tariffs that haven't liquidated (check your notices carefully)
The PSC Filing Process
Step 1: Entry Review
- Identify all entries subject to IEEPA tariffs
- Verify liquidation status through ACE
- Calculate potential refund amounts
- Prioritize high-value entries if resources are limited
Step 2: Documentation Preparation
- Gather entry summaries
- Compile tariff payment records
- Prepare legal basis for refund claim
- Document classification and valuation
Step 3: ACE System Filing
- Access ACE with valid credentials
- Submit PSC with proper reason codes
- Include supporting documentation
- Verify submission confirmation
Step 4: Monitoring
- Track acknowledgment from CBP
- Monitor liquidation status
- Maintain filing records
- Prepare for potential CBP questions
Common PSC Filing Mistakes to Avoid
1. Waiting Too Long
Filing on day 299 leaves no room for errors or system issues. File by day 285 for safety.
2. Incorrect Reason Codes
Using wrong codes can invalidate your PSC. Work with experienced brokers who know the system.
3. Incomplete Documentation
Missing documents delay processing and risk missing deadlines.
4. DIY Without Experience
ACE is complex. One wrong click can jeopardize millions in refunds.
5. Ignoring Liquidation Notices
Many importers don't track liquidation dates until it's too late.
Cost-Benefit Analysis
PSC Filing Costs:
- Broker fees: $100-250 per entry
- Time investment: 1-2 hours per entry
- Documentation: Minimal if records are organized
Potential Refunds:
- IEEPA tariffs: Varies by product and tariff code
- Average importer refund potential: $50,000-$5,000,000+
ROI Example: A company that imported $10 million in steel products could recover $2.5 million in tariffs—making the $250 PSC filing fee a 10,000x return on investment.
What Happens After Filing?
If Supreme Court Strikes Down Tariffs:
- CBP will process refunds for valid PSCs/protests
- Refunds typically issued within 90-120 days
- Interest may accrue from payment date
- No further action needed from importers
If Supreme Court Upholds Tariffs:
- PSCs remain on file but inactive
- No penalties or negative consequences
- Positions preserved for future challenges
- Minimal cost for significant protection
FAQs About PSC Filing
Q: Can I file PSCs myself without a broker?
A: Yes, if you are a self filer, period.
Q: How do I check if my entries have liquidated?
A: Check ACE, review CBP notices, or contact your broker for liquidation status.
Q: What if I have hundreds of entries?
A: Prioritize high-value entries first, then work systematically through the rest.
Q: Is there a deadline extension available?
A: No. Federal law provides no extensions for PSC or protest deadlines.
Take Action Today
The window for PSC filing closes daily as entries liquidate. Every day of delay means some importers lose refund rights forever.
Your Next Steps:
- Inventory all entries subject to IEEPA tariffs
- Verify liquidation status immediately
- Calculate potential refund amounts
- Contact a licensed customs broker
- File PSCs well before deadlines
Don't let procedural deadlines cost you millions in potential refunds. The Supreme Court's decision could come any day—be ready.
Need Help with Post-Summary Corrections?
Need help with post-summary corrections? Contact our brokerage team for expert assistance with PSC filing and protect your refund rights.
Need help filing PSCs? Strix's licensed customs brokers have filed millions of successful entries. Get your PSC assessment and protect your refund rights today.