The limit of 5 e-files is imposed by the IRS, not by TurboTax. TurboTax has tightened up the enforcement of the IRS limit this year. (They might have done so at the insistence of the IRS, but I don't know that for sure.) The fact that you found a way to get around the IRS limit in the past does not mean that you can do it this year. You may be done with TurboTax, but you will not find any other do-it-yourself tax software that allows you to e-file more than 5 returns, because they are all subject to the same IRS limit.
