You can start a new return in TurboTax Standard Online using the info from last year. Then continue through the return until you get to the Income part of the Interview. You’ll then see an Upgrade link at the bottom of the left side menu. You can click on it to upgrade to TurboTax Self-Employed Online.

If you have a code for Standard, you can still use it, you’ll just be asked to pay the difference in price.