A. The Department maintains many P.O. Boxes. Generally, a tax return is processed more efficiently when it is mailed using the return envelope provided with the return. However, if you have misplaced or lost the return envelope, you should mail the return to the address that is printed on the return.
This answer is intended to provide general information concerning a frequently asked question about a current position, policy, or practice associated with the taxes administered by the Connecticut Department of Revenue Services. It may include an informal interpretation of Connecticut tax law by the Department of Revenue Services (DRS). However, it is not intended to serve as a legal ruling.