The 5 e-file limit for one e-mail address, one software package, one computer, one IP address, etc. is a IRS requirement, not TurboTax. That limit is imposed on all self-prepared e-file providers and is defined in the IRS e-file regulations for e-file providers. Years ago, the IRS picked "5" as the cutoff between self-prepared e-file and professional e-file that must use professional software.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
