Q. I am a CSRS postal retiree wanting to get state tax withheld. Cannot find an address to send form W-4P.
A. To arrange for tax withholding, call OPM at 1-888-767-6738.
Q. I am a CSRS postal retiree wanting to get state tax withheld. Cannot find an address to send form W-4P.
A. To arrange for tax withholding, call OPM at 1-888-767-6738.