Federal employee pay during a shutdown
About 1.4 million active-duty military personnel, some reservists and about 1.3 million civilian federal workers will still report to work during the shutdown and would be entitled to their pay. If the shutdown drags on, their pay could be delayed. It’s likely they would eventually be paid what they’re owed a few days after the government reopens, but that must happen about four days before their next scheduled pay day for the payroll system to issue their checks on time.
For another 800,000 civilian employees whose jobs are not exempt from furloughs and would be sent home, Congress must decide whether to reimburse their lost pay. Here is the pay schedule for employees who will not be furloughed:

*If they are in a drill status, could get paid up to eight times a month.
SOURCE: Congressional Research Service, staff reporting.