If you used online TurboTax do NOT mess around and start changing the return that you filed. You will make a a big mess of it and you will not be able to transfer it for your 2021 return next year. Instead, create a "dummy" account for playing if you want to try out different scenarios. The desktop software lends itself much better to this than online does.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
