The Desktop installed program can do unlimited returns and efile 5 for free.
You can buy the Desktop CD or the Download program here,
https://turbotax.intuit.com/personal-taxes/cd-download
You can move your online return to the Desktop program without paying for Online. First save your return as a tax data file from Online
https://ttlc.intuit.com/community/saving/help/how-do-i-save-my-turbotax-online-return-as-a-tax-data-...
See how to switch to the Desktop program,
https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-switch-from-turbotax-online-to-th...
