[BitStillrhile]

Originally posted by Apocalypse
I filed online for the first time and this was part of the instructions:

STEP 3 - Mail your signed form(s) within 48 hours after you receive notification that the IRS has accepted your return
Mail Form 8453-OL to the address above.
Retain the proof of mailing to avoid a late filing penalty.
We recommend you use this method to send your 8453-OL:
- U.S. Postal Service certified mail

I received the 8453OL last night. With the post office closed Monday, how can I mail within 48 hours?

Also, I guess I have to walk in to the post office to get the mail certified? I think that's for if you file on April 15th. I don't think you have to hurry.