Well Oct 15 is the last day you can efile. Then online shuts down to get ready for the next year.
Some advantages of the Desktop CD/Download program over the Online version, https://ttlc.intuit.com/community/choosing-a-product/help/what-are-the-advantages-of-the-turbotax-cd...
The Online versions are only good for one return per account. And you may need to upgrade to a higher version to enter certain things. See the Online versions here, https://turbotax.intuit.com/personal-taxes/online/
All the Desktop versions have the same forms so you can use a lower version. You just get more help in the higher versions. You can see and buy the Desktop versions here, https://turbotax.intuit.com/personal-taxes/cd-download/
And the Desktop program can do unlimited returns and efile 5 Federal for free.
You can see and enter directly into the actual forms.
There is a What-If worksheet.
Basic does not include a free state program and has some other limitations like doesn’t import from It’s Deductible.
Deluxe and above include one free state program download to prepare returns for the same state. Then each state return is 19.99 to efile (goes up to 24.99 in March). Or you can print and mail state for free. If you need to also file a state return for a different state it is 39.99 to buy an additional state program.
