@debbiedragon Are you efiling them all? Even if you buy more programs it should only let you efile 5. You can use one program and print and mail the rest after the first 5 Efiles.
Read the IRS rules and restrictions for self-prepared e-file providers.
https://www.irs.gov/pub/irs-pdf/p1345.pdf
Page 31
5. Ensure that it does not transmit or accept for transmission more than five electronic returns originating from one software package or from one e-mail address;
This requirement is spelled out in detail in the ERO providers contract with the IRS.
And to prepare more than five e-files, you will need to sign up with the IRS as an ERO - an Electronic Returns Originator. How to become an Authorized E-file Provider…..
http://www.irs.gov/Tax-Professionals/e-File-Providers-&-Partners/Become-an-Authorized-e-file-Provide...
