I cannot efile even though it says I can. Why?

[Confused too]

Although I have used Turbo Tax to file Partnership returns for years, this year it indicates that the required 8453-PE is unsupported and I will be required to mail in the returns. An additional cost I was not planning.

[JotikaT2]

It depends.

Some forms have not been released for filing by some state agencies. 

Some forms have been updated and TurboTax is working on ensuring all of your calculations are processed correctly.

I have attached a link to assist you in determining if this is the reason you are unable to file.  

Federal forms release dates

State forms availability

[CassLO]

@DR-V  Some forms may not be available for e-file yet. Please see the TurboTax help topics below for assistance:

When a tax return can't be e-filed no matter what you do

IRS forms availability table for TurboTax individual (personal) tax products

State forms availability table for TurboTax individual (personal) tax products