US Customs and Border Protection will activate the CAPE refund portal at 8 a.m. Eastern time on Sunday, April 20, beginning the process of returning roughly $127 billion in International Emergency Economic Powers Act tariff duties that the Supreme Court struck down earlier this year. Friday is the final pre-launch day. The agency confirmed the window in a trade information notice posted late Wednesday. [1] [2]

The paper covered this portal's mechanics yesterday in a long look at who the $150 billion in refunds actually reaches. The short version: refunds flow to importers who wrote the checks to CBP, not to the consumers who paid higher retail prices downstream. The refund-eligible figure has since tightened to $127 billion as CBP narrowed Phase 1 entry-type scope, but the structural point is unchanged. [1]

What has changed is the calendar. Sunday morning is no longer hypothetical. It is 48 hours away.

The portal — Customs Automated Processing Environment — launches in a phased architecture. Phase 1 covers formal entries with standard duty assessments and entries subject to anti-dumping or countervailing duty adjustments. Subsequent phases, on timelines CBP has not yet published, will add entry types covering duty drawbacks, warehouse entries, and foreign-trade-zone withdrawals. Trade attorneys interviewed by Supply Chain Dive expect the full multi-phase cycle to extend through 2027 at minimum, with appeals of denied claims likely to stretch further. [1]

The constitutional architecture is what has not been discussed enough. The Supreme Court ruled the IEEPA tariffs an unlawful exercise of executive authority. The executive branch now spends Sunday morning paying for that unlawful authority in the form of refunds to the private parties on which it was imposed. The administration that lost the case is implementing the remedy. Neither the Treasury nor CBP has commented on the symbolic weight of this. The system is functioning as designed — court strikes down, executive refunds — and the silence about what the sequence means is the clearest signal that the mechanism works.

CBP has estimated an initial processing timeline of 60 to 90 days per claim. Trade attorneys expect backlogs to stretch that meaningfully. A single importer with hundreds of entries during the IEEPA tariff window faces a filing burden that runs into weeks of legal and accounting work per claim bundle. Wharton Budget Model's earlier estimate of $175 billion in total eligible refunds across all entry types remains the upper-bound figure; CBP's $127 billion covers only Phase 1. [2]

What Sunday will look like operationally: importers and customs brokers log into the portal, submit CAPE Declarations identifying specific entries and duty amounts, and wait. The automated verification checks run against CBP's entry database. Claims that survive the automated pass move to manual review. Claims that fail drop into a queue for clarification or denial. Most of the $127 billion will not clear in the first week. Most will not clear in the first quarter. But the first dollar refunded Sunday will still be a first dollar — a court-ordered reversal entering the accounting system of a customs agency that has never before processed refunds at this scale.

The absence of a consumer mechanism remains the story MSM has not pressed. The price increases consumers paid during the IEEPA tariff window — on electronics, clothing, industrial components — will not be traced back through supply chains and rebated at the register. The refund architecture does not contemplate that, and no administrative system could do it. The tariffs flowed one direction, consumer-ward. The refund flows the other direction, importer-ward. The consumer-to-importer leg of the original cost transfer is permanent.

The question Sunday raises is whether an administrative apparatus built to refund unlawful tariffs becomes a model. Future administrations that impose emergency-powers economic measures now know the cost. They know the court may strike the measure down. They know the executive will be asked to build the refund portal. That knowledge has a deterrent effect on some theories of executive power. On others, it has none. Sunday is the first test of how much the precedent holds.

At 8 a.m. EDT, the CAPE login page goes live. By 9 a.m., the first claims will be filed. By the end of next week, the first refunds — partial, preliminary, inevitably delayed — will begin to move. The judicial branch did its part months ago. Sunday is the day the executive branch writes the check.

-- HENDRIK VAN DER BERG, Brussels