Priortax 9.0 10 1669 877-289-7580 File your current 2018 and prior year federal and state returns going back through 2005 Priortax Logo $ 1460 Broadway 10036 New York, New York,

Why can’t I e-file prior year tax returns using your program?

You can always e-file your current year return with PriorTax. The IRS typically closes e-filing for current year taxes during October after tax season. 

However, the IRS does not accept any e-filed prior year returns. All prior year returns have to be paper filed and mailed to the IRS. This is true not just of PriorTax but for all online tax preparation companies.