Yes the Desktop program includes 5 federal efiled and NY is free to efile. You can buy whenever or wherever you want. There will be many updates before efiling opens and after. So the program will need updating frequently, I think at least once a week. You can buy it here or wherever you find a good price. Like Costco usually has a coupon in Jan.
Https://turbotax.intuit.com/personal-taxes/cd-download/
