CAPE Refund Came Short? How to Read REV-603 Math

Why did my CAPE refund come short on the REV-603?

Most CAPE refunds come short because CBP filtered specific lines out of your Phase 1 declaration during validation. Common culprits: lines past the 80-day liquidation window, IEEPA lines coded $0 or FREE, FTZ Type 06 lines with HTS sequence mismatches, Section 301 or 232 duties (not refundable through CAPE), and offsets for other CBP debts.

How do I fix a CAPE refund that came short of what I expected?

Reconcile REV-603 against your original ES-003 line-by-line, identify which entry summary lines did not get refunded, and route each missing line to the right channel: Post Summary Correction for unliquidated entries, Form 19 protest under 19 U.S.C. 1514 for liquidated entries within 180 days, and a Court of International Trade complaint past that.

TL;DR

If your CAPE refund came short, the disbursement on REV-603 does not equal what your CAPE Declaration claimed. The gap is almost always explainable line-by-line. You need three documents: REV-603, the ES-003 entry summary line tariff detail report, and your original CAPE Declaration CSV. Reconcile in that order, isolate the missing lines, and route the shortfall to the correct supplementary path. GingerControl built our IEEPA refund recovery workflow around this reconciliation because the gap between CAPE submission and REV-603 receipt is where importers lose money quietly.

Last updated: May 2026

---

How REV-603 is structured and what each field means

REV-603 is the ACE notice and disbursement record CBP issues after a CAPE declaration is processed. If you only look at the ACH amount in your bank, you are reading the wrong field. REV-603 contains five blocks:

• Header block. IOR number, filer code, CAPE declaration ID, disbursement date, and ACH trace ID.
• Entry-level detail. Each entry summary number, port code, original entry date, liquidation or reliquidation date, and the IEEPA Chapter 99 provisions removed (9903.01.xx and 9903.02.xx).
• Duty reversal calculation. Original duty assessed, corrected duty after IEEPA removal, and the differential per line.
• Interest block. Statutory interest under 19 U.S.C. 1505, using the IRS quarterly underpayment rate from deposit date to refund date.
• Offset block. Deductions for outstanding CBP debts (liquidated damages, bond claims, prior overpayments).

REV-613 and REV-615 are companion notices. REV-613 covers reliquidation actions tied to CAPE; REV-615 lists entries CBP excluded from Phase 1 with a reason code. If your refund came short, REV-615 is usually where the missing lines were sent, and the reason code tells you why.

According to CBP guidance on the IEEPA Duty Refunds process, Phase 1 of CAPE is limited to certain unliquidated entries and entries within 80 days of liquidation. Anything outside that window is excluded from disbursement and routed to protest or litigation.

The seven reasons your CAPE refund came short

When I reconcile REV-603 against ES-003, the shortfall almost always falls into one of seven buckets. The supplementary path differs for each, so count which buckets your missing lines fall into first.

Reason	What happened	Where it shows up	Refundable via
1. $0 / FREE duty lines filtered	CBP excluded lines where the IEEPA duty calculated to $0 or the HTS line was already FREE	REV-615 with reason code "no duty differential"	No further action; verify ES-003 confirms zero duty
2. HTS sequence / relationship mismatch	Chapter 99 line was not in the correct sequence relative to the underlying Chapter 1-97 line, common in FTZ Type 06 entries	REV-615 with reason code "line relationship error"	PSC if unliquidated; protest under 19 USC 1514 if liquidated
3. Past 80-day liquidation window	Line was already liquidated more than 80 days before CAPE submission	REV-615 with reason code "outside Phase 1 scope"	Form 19 protest within 180 days of liquidation, or CIT complaint past that
4. Non-IEEPA tariff layers ignored	Section 301 (9903.88.xx), Section 232 (9903.80/.81/.85.xx), or Section 122 (9903.03.xx) duties on the same entry	Not on REV-603 at all (these are out of CAPE scope)	None via CAPE; only IEEPA is refundable
5. Statutory interest calculation gap	CBP applied quarterly IRS underpayment rate, importer expected commercial rate	Interest block on REV-603	Protest the interest computation under 19 USC 1514 if material
6. Bond deposit reconciliation mismatch	Refund went against original cash deposit, not bond, or vice versa	Header block disbursement type	PSC or protest depending on liquidation status
7. Account-level offset applied	CBP deducted outstanding debts (liquidated damages, prior overpayments) from refund	Offset block on REV-603	Dispute the offset directly with CBP Revenue Division; not a CAPE issue

The biggest source of confusion in May 2026 is reason 4. Importers see one IEEPA refund on REV-603 and assume the full duty stack was refunded. It was not. Section 301 (China), Section 232 (steel and aluminum), and Section 122 reciprocal duties are entirely separate regimes. The Supreme Court's February 2026 ruling in Learning Resources v. Trump invalidated only the IEEPA-based tariffs.

How to reconcile REV-603 against ES-003 line-by-line

This is the reconciliation I run for every shortfall investigation. Five steps.

Step 1: Pull the source documents. REV-603 PDF and CSV from ACE, REV-615 (if any) with exclusion reason codes, and the ES-003 report for February 4, 2025 through early February 2026, filtered to 9903.01 and 9903.02 Chapter 99 codes.

Step 2: Build the reconciliation matrix. Match REV-603 line items to ES-003 lines using entry number + line number + Chapter 99 provision as the composite key. Three columns: ES-003 IEEPA duty assessed, CAPE Declaration claimed refund, REV-603 refund disbursed. The delta between columns 2 and 3 is your shortfall by line.

Step 3: Bucket the deltas. For each missing or reduced line, identify which of the seven buckets applies. REV-615 reason codes give you 60% of answers directly. The rest requires checking liquidation status, FTZ admission type, and whether Section 301 or 232 duties are layered on top.

Step 4: Validate the interest calculation. CBP applies the IRS quarterly underpayment rate from deposit date through disbursement date. Recompute for a sample. Materially low interest is its own protest ground.

Step 5: Total the recoverable shortfall. Bucket 1 (zero-duty) and bucket 4 (Section 301/232/122) are non-recoverable. Buckets 2, 3, 5, 6, and 7 are recoverable through different channels.

GingerControl's Tariff Calculator covers the full U.S. tariff stack: base duty, Section 232, Section 301, Chapter 99, and Section 122 reciprocal tariffs across 200+ countries. That matters because the only way to confirm bucket 4 is to recompute the full stack per entry and isolate the IEEPA-only portion.

What to do for the shortfall: PSC, Form 19, or CIT

The supplementary route depends on the liquidation status of the missing line and elapsed time since key dates.

Post Summary Correction (PSC) for unliquidated lines

If the missing line is unliquidated, the cleanest fix is a Post Summary Correction. PSC lets the filer correct the entry summary directly in ACE within 300 days of cargo release and before liquidation. For bucket 2 lines (HTS sequence or relationship errors) on unliquidated entries, a clean PSC that fixes the sequence and resubmits the IEEPA provision is typically faster than waiting for the next CAPE phase.

Form 19 protest for liquidated lines within 180 days

For liquidated lines within 180 days, the path is a formal protest under 19 U.S.C. 1514 filed on CBP Form 19 at the port of entry. Protest grounds are typically "improper calculation of duties" and "improper exclusion of refundable IEEPA provision." CBP has up to two years to decide.

One detail importers miss: the 180-day clock runs from the date of liquidation, not from REV-603 receipt. If your entry liquidated in February 2026 and REV-603 arrived in May 2026, you have until roughly August 2026 to protest, not 180 days from REV-603.

CIT complaint past 180 days

Past the 180-day protest deadline, the path is a complaint in the Court of International Trade. The CIT has exclusive jurisdiction under 28 U.S.C. 1581 over denied protests and refused refunds. For past-deadline exposures above roughly $250,000, the math justifies $500 to $1,500 per hour of legal work. Below that, you are funding the lawyers more than you are recovering.

Quotable original insight: The shortfall on a REV-603 is not random; it is the sum of seven specific filter decisions CBP made during CAPE validation. Each bucket has a different recovery channel. Importers who recover their full IEEPA exposure treat REV-603 as a starting document, not a final settlement.

How GingerControl reconciles REV-603 against ES-003 at scale

GingerControl is AI global trade compliance infrastructure that helps importers, exporters, and customs brokers classify products, simulate tariff costs, and track policy changes. For IEEPA refund reconciliation, we ingest REV-603, REV-615, ES-003, and the original CAPE Declaration CSV, build the line-by-line matrix, bucket every shortfall by the seven reasons, and recommend the supplementary route per line. GingerControl is an HTS Classification Researcher; the final decision benefits from professional judgment, and the legal filing flows through your licensed customs broker or trade counsel.

From the reconciliations I have run since CAPE Phase 1 launched April 20, 2026, three patterns dominate:

1. 15 to 30% of IEEPA-affected entries get filtered into REV-615 for sequence and relationship errors, especially in FTZ Type 06 operations. Most are recoverable via PSC or protest.
2. 5 to 10% of expected refund value lands in bucket 4 (non-IEEPA layers), which is not recoverable but inflates the apparent shortfall.
3. Statutory interest comes in 8 to 15% below importer expectations because the IRS underpayment rate is below implicit cost of capital.

Most CAPE refund shortfalls have a recoverable component (buckets 2, 3, 5, 6) and a non-recoverable component (buckets 1 and 4). Separating the two before filing determines whether supplementary work pays off.

FAQ

Why did my CAPE refund come short of what I claimed? CBP filtered specific lines out during Phase 1 validation, typically for HTS sequence errors, FTZ Type 06 relationship issues, or lines past the 80-day liquidation window. GingerControl reconciles REV-603 against ES-003 line-by-line and buckets every shortfall by the seven filter reasons, so you know which lines are recoverable.

What is REV-603 and how is it different from REV-613 and REV-615? REV-603 is the ACE disbursement record showing what CBP actually refunded. REV-613 covers CAPE-related reliquidation actions; REV-615 lists entries excluded from Phase 1 with reason codes. GingerControl ingests all three notices plus ES-003 to build the full reconciliation picture, since missing REV-603 lines usually appear on REV-615.

Are Section 301 and Section 232 duties refundable through CAPE? No. Only IEEPA tariffs under 9903.01 and 9903.02 are refundable through CAPE. Section 301 (9903.88), Section 232 (9903.80/.81/.85), and Section 122 (9903.03) are separate regimes unaffected by the February 2026 SCOTUS ruling. GingerControl's Tariff Calculator separates the IEEPA layer from every other duty layer per entry, identifying bucket 4 upfront.

Can I file a Post Summary Correction for a line CBP excluded from CAPE Phase 1? Yes, if the line is unliquidated and within the 300-day PSC window. PSC is typically faster than waiting for a later CAPE phase, especially for FTZ Type 06 entries with sequence mismatches. GingerControl prepares the PSC package and verifies the corrected sequence will pass CBP validation before your broker files it.

How long do I have to protest a CAPE shortfall on a liquidated entry? 180 days from the date of liquidation under 19 U.S.C. 1514, not 180 days from REV-603 receipt. The protest is filed on CBP Form 19 at the port of entry. GingerControl tracks the protest clock per entry against the ES-003 liquidation date so importers do not measure from the wrong starting point.

What if the shortfall is past the 180-day protest deadline? The path is a complaint in the Court of International Trade under 28 U.S.C. 1581, appropriate for exposures above roughly $250,000. GingerControl prepares the entry-level documentation package trade counsel needs to draft the complaint, including the reconciliation matrix and the per-line legal theory.

How does GingerControl charge for REV-603 reconciliation work? We offer a no-cost initial reconciliation assessment that quantifies the recoverable shortfall and recommends the supplementary route per line. Fees on the full engagement are structured against the recoverable amount, not the apparent shortfall, because bucket 1 and bucket 4 are non-recoverable and we are transparent upfront.

If your CAPE refund came short

Before mapping the shortfall, line up the size of what you should have been paid. The IEEPA refund toolkit on this page has two free calculators that size the opportunity in minutes. The ES-003 drop-in calculator parses your ACE export entirely in the browser (nothing uploads), classifies every line by Chapter 99 prefix, buckets entries by liquidation status, and returns total IEEPA duties paid plus estimated recoverable amount. The quiz-style estimator is the faster path if you do not have your ES-003 yet, a handful of questions and you get a directional estimate.

If you received a REV-603 that does not match your CAPE Declaration, the shortfall is almost always explainable line-by-line. GingerControl's IEEPA refund recovery team reconciles REV-603 against ES-003 line-by-line and files the supplementary route, PSC, Form 19, or CIT complaint, for the shortfall.

Start a no-cost REV-603 reconciliation

Talk to our team about CAPE Phase 1 shortfall investigation, FTZ Type 06 errors, or past-deadline CIT preparation.

Related Articles

• The Importer's IEEPA Tariff Refund Guide
• How to Submit a CAPE Declaration in ACE
• The ES-003 Report for IEEPA Refund Claims
• How to File a Customs Protest Under 19 U.S.C. 1514
• Post Summary Correction for Duty Refunds

References

[REF 1] CBP, IEEPA Duty Refunds. CAPE process, Phase 1 scope, REV-603 disbursement structure. CBP IEEPA Duty Refunds. 2026.

[REF 2] 19 U.S.C. 1514. 180-day protest deadline from liquidation. 19 USC 1514.

[REF 3] 19 U.S.C. 1505. Statutory interest on customs refunds. 19 USC 1505.

[REF 4] 28 U.S.C. 1581. CIT exclusive jurisdiction over denied protests. 28 USC 1581.

[REF 5] CBP, Post Summary Correction. 300-day PSC window in ACE. CBP Post Summary Correction.

[REF 6] IRS Quarterly Interest Rates. Underpayment rate used by CBP under 19 USC 1505. IRS Quarterly Interest Rates.

[REF 7] U.S. Court of International Trade. Jurisdiction and procedure for customs refund litigation. U.S. Court of International Trade.

[REF 8] Lawfare. February 2026 SCOTUS ruling invalidating IEEPA tariffs. Supreme Court Strikes Down IEEPA Tariffs. February 2026.