Tax Day: Refunds from the IRS — and from Customs

On Tax Day 2026 millions of American households sent their annual returns to the Internal Revenue Service. Fortune 500 companies, meanwhile, were banking large court-ordered cash refunds from US Customs and Border Protection. Money was flowing in both directions at once.

April, the Treasury's big month

April is normally the best month of the year for federal finances. Final payments on the previous year's individual income taxes arrive alongside quarterly estimated payments, and the Treasury's cash balance at the Federal Reserve swells, often allowing it to pay down Treasury bills for a few weeks. This year part of that seasonal surplus is being handed straight back to importers. The timing softens the blow to the Treasury's cash position, since refunds paid during the April inflow can be absorbed without an immediate burst of extra borrowing, but it does not change the total the government owes.

Customs writes the cheques

On 4 March the Court of International Trade issued a strict order enforcing the Supreme Court's ruling that the IEEPA tariffs were invalid. That left the Treasury legally bound to start paying refunds. Multinationals that had paid hundreds of millions in unconstitutional border taxes watched the cash come back, a large non-operating boost to liquidity that landed just as federal tax receipts reached their annual peak.

Speed depends on paperwork. Entries that Customs has not yet finalised can be adjusted and refunded electronically, while those already finalised require formal protests, so the companies receiving cash first are those whose imports were recent or whose customs teams kept their claims open. Large retailers and electronics groups with dedicated trade-compliance staff are well placed. Smaller importers are likely to wait longer.

The IRS takes its share

There is a neat symmetry that the irony of the day obscures. Most companies deducted their tariff payments as a cost of doing business when they paid them, which lowered their taxable income in 2025. Under the long-standing tax principle that recovering a previously deducted expense counts as income, the refunds will be taxable when received, at the corporate rate of 21 per cent set in 2017. Part of every customs cheque therefore returns to the Treasury through the corporate tax system, although not until companies make their estimated tax payments later in the year.

Refunds fund the buybacks

Accounting rules treat customs refunds, plus the statutory federal interest paid on them, as pre-tax income that flows straight through the income statement. Boards in retail, carmaking and consumer electronics moved quickly to approve large accelerated share repurchases with the money, which lifts earnings per share without any help from the underlying business.

An accelerated repurchase works through a bank. The company pays a lump sum up front, the bank borrows shares and delivers them immediately, and it then buys shares in the market over the following months to close its position, with a final settlement for any difference in price. The share count falls at once, so earnings per share rise in the next reporting period. Since 2023 companies have paid a 1 per cent excise tax on the value of shares they repurchase, a small cost that has not changed the preference for buybacks.

The earnings effect is doubly flattering. The refund itself inflates reported profits for the quarter in which it is booked, and the buyback it funds shrinks the number of shares over which future profits are spread. Analysts will strip out the refund as a one-off gain, but the lower share count persists, which makes year-on-year comparisons of earnings per share look better for some time.

Many households will also receive money back this spring. The tax law signed in July 2025 created new deductions for tips and overtime pay and raised the cap on deductions for state and local taxes, and those changes apply to the 2025 tax year, so a large number of filers are entitled to bigger refunds than usual. The two streams of refunds differ in one respect: households are recovering their own overpaid income tax, while companies are recovering duties whose cost was at least partly passed on to those same households through higher prices.

Winners and losers of the day

Shareholders of large importers are the clearest winners, receiving cash that was once a cost of doing business. Banks arranging repurchases collect fees. Households gain little directly: most paid higher prices while the tariffs were in force and will see no refund, and many are writing cheques to the IRS in the same week. Smaller importers wait longer for their money. The Treasury loses revenue it had counted on, recovers part of it through corporate tax, and must borrow the rest.

The Treasury will show the net effect soon. At the end of April it publishes its borrowing estimate for the coming quarter, alongside the quarterly refunding announcement that sets auction sizes. That estimate will reveal how much extra borrowing officials expect the refunds to require, and whether they plan to fund it with bills or longer-dated debt.

The defence of buybacks

The strongest counterargument is that buybacks are a sensible use of a windfall. A one-off refund is not a reason to commit to new factories or permanent hiring, especially when trade policy remains uncertain and new surcharges are being imposed under other statutes. Returning the cash to shareholders lets them redeploy it, and it avoids the risk of managers spending it on projects they would not otherwise have funded. The criticism holds, though, for companies that raised prices to cover the tariffs and now keep both the higher prices and the refund.

The signals to watch are refunds and customs receipts in the daily Treasury statement, company disclosures of refund amounts and their tax treatment in quarterly filings, the pace of new repurchase authorisations, and capital spending guidance for the rest of the year. The irony of this Tax Day is plain enough. Households are paying the IRS while the Treasury sends hundreds of millions back to companies, and most of that cash will probably go on buybacks within the year rather than on new investment.