The Thrift Savings Plan, or TSP, is a savings account for federal employees, both civilians and those in the military. The TSP is administrated by the Federal Retirement Thrift Investment Board. If you have moved, you'll want to update your TSP address as soon as possible, to ensure your statements arrive at the correct location. Only a former federal employee can change the address on his own. Current employees must contact the agency that employs them for assistance.
Visit Tsp.gov. Click on the "Forms and Publications" link. Under Browse Topics, click "Address/Name Change." Click on form TSP-9 to download it. Print the form out. You'll need a PDF viewer, such as Adobe Acrobat Reader to do so.
Fill out the first box. Check whether the account is for a civilian employee account, or for a uniformed employee account. Input your full name, date of birth, TSP account number, and telephone number.
Fill out the second box. Input your new address, including the zip code. It's not necessary to input your old address.
Make a copy of the completed form to keep for your personal records, if desired.
Sign and date TSP-9, and mail the form to the following address:
Thrift Savings Plan P.O. Box 385021 Birmingham, AL 35238
Fax the form, if you'd prefer not to mail it. Fax it to 866-817-5023. On the cover letter, put your name and "Attention: Thrift Savings Plan."