Blog · 16 October 2026

IEEPA Tariff Refunds and the Tax Benefit Rule (§111): How US CPA Firms Should Treat CBP Duty Recoveries

By Keshav Bansal, CA

IEEPA tariff refunds are moving from litigation headlines into client cash and tax workpapers. In an October 6, 2026 court filing summarized by Forvis Mazars (“From the Hill,” October 13, 2026), U.S. Customs and Border Protection (CBP) reported that, as of October 2, 2026, approximately $136.6 billion in potential and certified refunds had been accepted for processing through the Consolidated Administration and Processing of Entries (CAPE) system, about $126 billion (including interest) had been certified and sent to the U.S. Department of the Treasury for disbursement, and roughly $1.1 billion across 20,362 refunds was held because Automated Clearing House (ACH) information was missing. Those recoveries follow Learning Resources, Inc. v. Trump (U.S. February 20, 2026), in which the Supreme Court held that the International Emergency Economic Powers Act (IEEPA) does not authorize the President to impose tariffs. For US CPA firms, the customs win is only half the story: the tax benefit rule under IRC §111, inventory costing under Treas. Reg. §1.471-3 and §263A, and timing under the all-events test decide how duty recoveries hit taxable income.

What CBP reported—and why Phase 3 matters

Forvis Mazars attributes the October 2 snapshot to CBP’s October 6 filing: 297,887 CAPE declarations submitted, 209,262 passing file validations, covering 27.4 million entries. Steptoe (Kendler et al., reporting on early October 2026 developments) places the same CAPE scale in context after the Supreme Court’s February 20, 2026 holding and subsequent Court of International Trade (CIT) reliquidation orders. CBP’s public IEEPA duty-refunds page describes CAPE inside the Automated Commercial Environment (ACE) as consolidating IEEPA duty refunds—including interest—rather than processing entry by entry, with valid refunds generally issued within 60–90 days after an accepted CAPE declaration unless further review is needed.

Phase 3 of CAPE opened on October 6, 2026 for finally liquidated entries. RSK (CBP Sets October 6 Deployment Date for CAPE Phase 3) and Steptoe both stress that Phase 3 currently covers plaintiffs in pending CIT litigation for whom the CIT ordered reliquidation—and who provided a valid importer-of-record (IOR) number to CBP by July 30, 2026. It is not a general filing pathway for every importer with finally liquidated IEEPA entries. Firms counseling importers should separate (1) customs eligibility and CAPE mechanics from (2) federal income tax recognition—the focus of this guide.

The tax benefit rule (§111) in plain terms

IRC §111(a) provides that gross income does not include income attributable to the recovery of an amount deducted in a prior taxable year to the extent that amount did not reduce tax under chapter 1. In other words, a recovery is taxable when the earlier deduction produced a tax benefit, and excludable only to the extent it did not. Treas. Reg. §1.111-1 extends that recovery-exclusion concept beyond the statute’s classic “bad debts, prior taxes, and delinquency amounts” language to other previously deducted losses, expenditures and accruals (with stated exceptions such as depreciation). For clients who paid IEEPA duties and later recover them, the first question is whether the duty outlay reduced taxable income in a prior year—and by how much.

Duties on merchandise are typically inventoriable costs, not freestanding §162 period deductions. Treas. Reg. §1.471-3(b) includes, in the cost of purchased merchandise, the net invoice price plus transportation or other necessary charges incurred in acquiring possession of the goods; taxpayers subject to §263A must also capitalize additional inventory costs under the UNICAP rules. When the original dutiable cost sat in inventory (or flowed through cost of goods sold), the recovery analysis follows the goods—not a simple “deduction then income” label.

Inventory, COGS and where the refund lands

Map each refund to the goods that carried the duty:

• Goods sold in a prior year. If inventoriable duty cost already reduced taxable income through COGS (or an equivalent inventoriable charge) in an earlier year, a refund of that cost is generally income in the recovery year under the tax benefit rule—subject to the §111 exclusion for any portion that produced no tax benefit.
• Goods sold in the current year. A refund tied to units sold this year ordinarily reduces COGS (or otherwise lowers inventoriable cost associated with those sales) rather than appearing as a standalone “other income” plug, consistent with treating the duty as part of inventory cost.
• Goods still in ending inventory. Reduce inventory cost for the related units so ending inventory and future COGS reflect the true net duty cost. Do not leave a windfall as miscellaneous income while inventory remains overstated.

Keep entry-level support: entry numbers, Chapter 99 IEEPA lines removed in ACE, CAPE declaration IDs, refund and interest amounts, and a tie to SKU or lot. That documentation mirrors the substantiation discipline in inventory cases such as our guide to COGS and records after Risan. Related federal excise timing work for CPA firms includes Form 720 semimonthly deposits and federal diesel excise developments—different taxes, same need to separate the levy from how the books and return report it.

Interest, customer pass-backs and method of accounting

Interest paid with a CBP refund is separate ordinary income. Do not net it into inventory or COGS. If the client passes all or part of a duty recovery back to customers, that remittance is a separate deduction (or other treatment driven by the contract) when paid or accrued under the client’s method—not an automatic wash against the refund.

Cash-method taxpayers generally include refunds when received. Accrual-method taxpayers include income when all events have occurred that fix the right to receive the income and the amount can be determined with reasonable accuracy (§451; Treas. Reg. §1.451-1(a)). Rev. Rul. 2003-3 holds that a state or local income or franchise tax refund accrues when the taxpayer receives payment or notice that the refund claim has been approved, whichever is earlier, because approval involves substantive governmental review—not a mere ministerial step. RSM (July 30, 2026) applies that same all-events logic to IEEPA tariff refunds: filing a CAPE claim alone may not fix the right while CBP retains authority to review, adjust or deny. RSM also flags §451(b) / Reg. §1.451-3 for taxpayers with an applicable financial statement: book recognition of a refund does not automatically accelerate tax inclusion for a government refund claim. Confirm each client’s facts before locking estimated payments or ASC 740 positions.

Checklist for US CPA firms

• Reconcile CAPE to the general ledger: accepted declarations, certified amounts, Treasury disbursements and any ACH holds (Forvis Mazars reported ~$1.1 billion stuck for missing ACH data as of October 2).
• Trace duties to inventory layers: prior-year COGS vs current-year sales vs ending inventory; adjust the right bucket.
• Split principal and interest; treat interest as ordinary income.
• Apply §111 where a prior deduction produced no tax benefit; document the recovery-exclusion computation.
• Test accrual timing under the all-events test and, where relevant, Rev. Rul. 2003-3’s approval-or-payment approach—plus any §451(b) AFS overlay.
• Document customer pass-backs separately; do not assume simultaneous netting.

Where Tax Brew fits

Tax Brew supports US CPA firms with US tax return preparation support and bookkeeping cleanup when import duty refunds, inventory and multi-entity workpapers need reconstruction. Your firm keeps the advice, the representation and the signature. The first 20 hours are free for qualifying engagements. See our services, or email info@taxbrewglobal.com.

Sources: Forvis Mazars, “From the Hill: October 13, 2026” (Spencer Heywood & Michael Cornett; CBP Oct. 6, 2026 court filing figures as of Oct. 2, 2026); Learning Resources, Inc. v. Trump, No. 24-1287 (U.S. Feb. 20, 2026) (SCOTUSblog case page; holding that IEEPA does not authorize tariffs); Steptoe, “Relief in Sight: CIT Certifies Class for IEEPA Tariff Refunds for Certain Importers” (Kendler, Wang, Wang & Kays; Phase 3 Oct. 6, 2026; July 30, 2026 IOR cutoff); RSK, “CBP Sets October 6 Deployment Date for CAPE Phase 3”; RSM US, “Navigating the tax impact of IEEPA tariff refunds” (July 30, 2026); CBP, “International Emergency Economic Powers Act (IEEPA) Duty Refunds” (CAPE / ACE; 60–90 day guidance); 26 U.S.C. §111; Treas. Reg. §§1.111-1, 1.451-1(a), 1.471-3; IRC §263A; Rev. Rul. 2003-3, 2003-1 C.B. 253. This is general information, not legal advice. As of 16 October 2026.