TSA's biggest budget line is a paycheck. Washington stopped sending it for 76 days.

The Transportation Security Administration is not, mostly, a technology agency or a regulator.▸ It is a payroll. Screener salaries and benefits are the single largest thing TSA buys with its money — bigger than every X-ray machine, dog, and federal air marshal combined. So when the government shut down for 76 days starting February 14, 2026, and that payroll stopped moving, the system didn't degrade gracefully. It lost more than a thousand of the people running it.

TSA asked Congress for $11.6 billion for FY2026, funded mostly by direct appropriation with a smaller slice from PreCheck and other vetting fees.▸ Strip away every category the agency spends money on — canine teams, Federal Air Marshals, checkpoint technology, headquarters — and one line still swallows almost half the budget: screener personnel, compensation, and benefits, $5.51 billion, 47 cents of every dollar TSA asked for. Everything else — training, private-contractor screening under the Screening Partnership Program, airport management, canines, checkpoint technology, Federal Air Marshals, regulation, cargo security, intelligence, and the agency's own headquarters — splits the remaining 53 cents.

That $5.51 billion isn't the enacted number — it's the request, and Congress doesn't always take requests as written.▸ The same FY2026 budget proposed eliminating 1,173 exit-lane screening positions at 99 airports to save $98.5 million; the bipartisan bill that finally funded DHS through the rest of the fiscal year, signed April 30, 2026, restored that money instead of cutting it. Whatever the final figure lands on, the shape of the budget doesn't move: TSA is a screening workforce with some equipment attached, not the other way around. Which is exactly why a funding lapse hits it differently than it hits an agency that mostly buys things instead of paying people.

A shutdown doesn't touch the sankey chart above — Congress eventually appropriates the money either way.▸ What it touches is the humans waiting on it. DHS's payroll runs roughly $1.6 billion every two weeks, and when the government shut down on February 14, 2026, that stopped along with everything else at the department. TSA officers — who are excluded from the federal pay scale that guarantees other agencies' essential workers get paid on time — kept showing up to work checkpoints without paychecks.

The curve bends upward the longer the lapse dragged on.▸ By day 32, DHS itself was reporting 366 officers gone, alongside checkpoint callout rates that hit 55% at Houston's Hobby Airport on a single day that March. By day 66 the total had reached 830. By day 74 — two days before the shutdown finally ended — it was 1,110, a pace of roughly 35 departures a day in the shutdown's final stretch. DHS's own assessment of what that means: "this loss has significantly decreased TSA's ability to meet passenger demand," and every one of those seats takes four to six months to refill, because a screener has to be trained and certified before working a checkpoint alone. The shortage didn't show up in a budget document. It showed up as understaffed lanes, going into a summer that included the FIFA World Cup.

Budget figures are TSA's FY2026 President's Budget request, not the final enacted appropriation, which Congress can and did adjust before signing the bill that ended the shutdown. Resignation counts are DHS's own running tallies as released during the shutdown and may be revised.