Documents and forms. Donation Letter – Tax ID. November 9, 2020.FCPS accepts donations of new or gently used items. All charitable and civic organizations that wish to solicit in Fairfax County must first register with VDACS. If you donated to a nonprofit at one of our locations, you are able to access an electronic copy of our nonprofit partners' tax receipt below. The City of Fairfax Fire Department will supply a donation receipt letter with our tax ID number for your tax submission. The NRA Foundation Tax ID number is: 52-1710886. Or you can donate through Paypal Giving Fund. Our Federal Tax ID number is 54-1722709. ​. Completion of this online form allows FCPS to better support donors, track donations, and send thank you tax receipts.