Should I Mail My Tax Return Certified?
Mailing your tax return via Certified Mail can provide proof of mailing and delivery, which matters most when filing close to a deadline or when a lost return could have serious consequences. However, it costs extra, takes longer than many electronic options, and does not guarantee that the IRS will accept or process your return without errors. For most filers who are able, electronic filing with confirmation is faster and usually simpler. If you must use paper mail, Certified Mail with Return Receipt Requested is a reasonable safeguard.