I must supply requested information to the IRS per their 12C letter. I do not want to fax it and mailing is an option. It says to mail to the address at the top of the first page of the letter. All that is there (besides my own address) in top left corner of the first page is:
IRS Internal Revenue Service
OSC
Ogden, UT [removed]
Is that a valid return address for the IRS?
Thanks!
