By itself, TurboTax is only designed to prepare end-of-the-year tax returns. If you use an accounting program such as QuickBooks for your rideshare self-employment, that will help you prepare quarterly estimates.
Intuit offers an online cloud-based version of QuickBooks called QuickBooks self-employment (QBSE) which is a monthly subscription. There is one price for QBSE alone for a few dollars more per month you get a version that also includes TurboTax self-employment version to prepare your tax return at the end of the year. The online QBSE is accessible from any web connected computer, but it’s limited in that it can only handle one business. If you had more complicated business needs, you would need to buy QuickBooks to install on your own computer, which is more expensive up front but has more capabilities.
I just had a look and there are a lot of different QuickBooks subscription packages, so make sure you buy what you really want.
https://quickbooks.intuit.com/self-employed/
