Where do I mail supporting documentation for 2024 return?

[Jkellyd1]

Does anyone know where I would mail a supporting letter I need to provide to the IRS?  The letter supports an entry I made concerning an investment procedure in my tax preparation and it needs to be included.

Would I send it to the normal address one would send a "hard" copy of their tax return if they were mailing it?  Or is there a different address for written correspondence that is "outside" of the "normal" correspondence when completing a tax return? Thank you in advance!

[xmasbaby0]

Did the IRS send YOU a letter to request more information?   If the IRS wants or needs more information from you they will request it in a letter.