One Law Guarantees the Back Pay. It Only Covers Some of the Workforce.

The government shut down on October 1, 2025, and stayed shut for 43 days — the longest full shutdown in U.S. history, per the Congressional Research Service's shutdown record.▸ Every one of the roughly 800,000 federal employees who went unpaid during that stretch is, by law, owed every cent back. Every one of the more than one million federal contract employees who also went unpaid is owed nothing — not by that law, not by any law.

Federal agencies run on two kinds of labor: employees on the government's own payroll, and contractors performing work the government has hired out.▸ A lapse in appropriations stops paying both. Only one of them has a law behind them.

Per the Office of Personnel Management's own accounting, about 400,000 federal employees were furloughed — barred from working at all — and another 400,000 were "excepted," required to keep working with no paycheck.▸ OPM put the bill for repaying just the furloughed group at "about $5 billion." Both groups get paid back automatically, because the Government Employee Fair Treatment Act of 2019 (Public Law 116-1) requires it: "furloughed as a result of a covered lapse in appropriations shall be paid... at the earliest date possible after the lapse in appropriations ends."

The Professional Services Council — the trade association representing government contractors — put the contractor side of the same shutdown at "over a million" employees, writing that they "often bear the brunt of shutdowns... even though many are legally barred from working."▸ PSC's own shutdown fact sheet states the legal gap plainly: GEFTA "guarantees back pay for all federal government personnel... Contractors follow different procedures – and have never received back pay." Not some years. Never.

This isn't a one-time oversight.▸ It is the standing arrangement, tested against three record-length shutdowns in a row.

Each shutdown has been longer than the last — 16 days in 2013, 35 in 2018–19, 43 in 2025.▸ Federal employees were made whole after all three, eventually by one-off legislation and, since 2019, automatically under GEFTA. Contract employees were not made whole after any of them. PSC's own fact sheet dates the pattern back at least to 2013: "tens of thousands of contractors were furloughed" in that shutdown and the one that followed, and none were guaranteed repayment.

In January 2026, the guarantee for federal employees itself came under pressure.▸ OPM quietly stripped the back-pay commitment from its shutdown guidance, replacing language promising retroactive pay with a line stating that "Congress will determine via legislation whether furloughed employees receive pay" — a position the Office of Management and Budget had first floated in October 2025: that GEFTA doesn't automatically guarantee back pay at all. A four-day partial shutdown followed at the end of January. Congress ended it on February 3, 2026 by passing a funding bill that explicitly reasserted agencies "shall" pay furloughed employees under GEFTA — restoring, for federal employees, the guarantee that had briefly been in doubt. No comparable reassertion exists for contractors. Rep. James Walkinshaw's True Shutdown Fairness Act, reintroduced the same day to extend a pay guarantee to contract employees too, remains a bill, not a law.

Figures describe the Oct. 1 – Nov. 12, 2025 lapse in appropriations specifically; the January–February 2026 partial shutdown and guidance dispute are a separate, later event, described only where explicitly dated above.