How many tax returns can I file with Turbo Tax?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/start-another-return-turbotax...
The 5 efile limit is from the IRS. It's to prevent fraud and people filing fake returns. To do more you have to sign up as a ERO - Electronic Returns Originator and be an authorized E-file provider. And you can't buy another Desktop program to get more efiles.
