Sending forms to IRS

[Akka]

I see the suggested way to send tax forms to IRS is registered or certified mail with return receipt required. Local USPS office told me that for return receipt they need someone to do a signature and that's tricky for PO box addresses so they just deliver a slip asking the addressee to come to USPS, sign the return receipt and collect the documents. I know that is not going to work for IRS. Trying to understand how return receipt option works for others. Will asking for a return receipt cause any delay in document delivery if this is true for PO box address.

[AkinaLO]

Are you trying to decide of you should send a return receipt with your documents?

[Akka]

@AkinaLO yes

[Critter]

The IRS gets thousands of pieces of mail each day ... they will NOT sign anything ... just put a tracking number on the letter.

[Critter]

https://www.usps.com/taxes/

[Susieq]

I send my forms to IRS Certified mail, but I do not request return receipt.  You can still track certified mail and get online tracking that will indicate the return has been received.  In my opinion,  the return receipt doesn't add anything to the tracking info.

You can also get a "proof of mailing", which is less expensive and shows you mailed the return.  However, I prefer paying a few extra dollars and being able to track, which you can't with proof of mailing.  

You can also send many returns electronically.  

[JamesG1]

I mail many forms to the IRS and states by certified with return receipt. 

Many times, it is not required but I feel much better knowing that I have done as much as I can to prove that I mailed tax documents on a timely basis.

See also this Turbotax help.