Originally Posted by
Blumie
It's tax day after all.
Prefer inside security at LAX, but have enough time to go out if need be, or anywhere at SFO.
After 9/11, most airports removed letter boxes from airports.
I'd guess that the AC would accept the tax form(s), if you had paid the proper postage.
At
https://www.google.com/search?source.........0.&pbx=1
they show two po's--but not in the terminals.
Didn't mailing tax forms go away with the horse and buggy--doesn't (nearly

) everyone efile?