The PDF below details information about taking out a loan from your TSP Account. The main issue is whether the TSP will let you take out a loan. Here is what they say about loans during furloughs:
Can I take a TSP loan while I am furloughed?
If the furlough is expected to last 30 days or less—yes. If the furlough will last more than 30 days—no. . . .
We are trying to find out if the TSP has determined how long they ‘expect’ this furlough to last. That answer will determine whether it’s even possible to take a loan. Whether it is a good idea to take a TSP Loan for this purpose is a separate calculation. If you’re considering this option you probably should contact TSP ASAP. The TSP is open for business during the shutdown.
YOU SHOULD ALSO CONSIDER CONTACTING YOUR CREDIT UNION- MANY HAVE LOAN PROGRAMS FOR THE SHUTDOWN
Here is the TSP’s PDF “Effect of Nonpay Status on Your TSP Account”:tspfs04