"Ready to mail" means ready for YOU to print, sign and mail yourself. TurboTax does not mail it for you.
https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...
Be sure to attach copies of your W2s and any 1099s that have withholding on them. You have to mail federal and state in separate envelopes because they go to different places. Get a tracking number from the post office when you mail them for proof of filing.
To change to e-filing:
https://ttlc.intuit.com/questions/3399683-how-do-i-change-from-mail-to-e-file-in-turbotax-online?jum...
