I finished my amended tax return and was wondering if I am to mail anything to the state of Colorado or if turbo tax efiles the amended return since Colorado allows that?

[DoninGA]

TurboTax does not e-file amended state tax returns.  You will have to print and mail the amended state return.

See this TurboTax support FAQ for how to print a tax return for mailing - https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...

[Critter-3]

In the FILE tab read the screens carefully ... if the CO amended return is allowed (in the TT system) it will be a choice in step 2 ... if not  then pick to mail it in and when you print the return the mailing instructions will be included. 

[fanfare]

Mail or e-File -- State or Federal --    You must do the filing of your tax return(s).