Federal employees fall into two groups during a lapse, and both are generally made whole afterward. Furloughed employees are sent home without pay; excepted employees keep working without pay until funding is restored. The Government Employee Fair Treatment Act of 2019 provides that both groups receive retroactive pay at the earliest date possible after the lapse ends, regardless of scheduled pay dates. In practice the pay is therefore delayed rather than lost, although how automatically that guarantee applies has at times been disputed, so a household is wise to treat the timing as uncertain rather than assured. The delay is real regardless: a worker still has to cover rent, a mortgage, and groceries during the gap, which is why a shutdown is a cash-flow event for federal households even though the pay is eventually restored. Federal contractors are in a weaker position, since they are not covered by that guarantee and back pay for them depends on their contracts and on any separate legislation.
Benefits and government services divide along how they are funded. Programs paid from mandatory spending, including Social Security retirement and disability benefits and Medicare, generally continue during a shutdown because their funding does not depend on the annual appropriations that lapsed. What can slow is the staffing around them: new claims, replacement cards, and customer-service functions may be reduced. Programs that depend on annual appropriations are more exposed; the specifics vary by shutdown and by how long it lasts, which is one reason it is a mistake to treat any single episode as the template.
Several ordinary financial transactions run through federal agencies and can therefore stall. The IRS may suspend some functions, which can delay certain services or filings depending on the season and the agency's contingency plan. Small Business Administration loan approvals can pause, delaying financing for small businesses. Mortgage processing can be affected where a loan depends on federal action, for example verification of Social Security numbers or IRS tax transcripts, or programs run by the FHA, VA, or USDA, so a home purchase can be delayed. The Thrift Savings Plan, the retirement plan for federal workers, continues to operate, though a furloughed employee's own contributions pause with their paychecks.
Markets are the last piece. Historically, financial markets have generally weathered shutdowns without lasting damage, and reacting to a shutdown by selling investments has usually been the wrong move. That said, the added political uncertainty can contribute to short-term volatility, and a particularly long shutdown can begin to weigh on economic growth and on government data releases that markets and policymakers rely on. For a long-term investor, the sound posture is generally to treat a shutdown as noise rather than a signal, while recognizing that a directly affected worker's situation is a genuine cash-flow problem to plan around.