Yes, TurboTax will work with Big Sur software. Here's what you'll need to use TurboTax. TurboTax is compatible with all common web browsers and operating ... (Big Sur). Safari 14.x; Chrome 83.x; Firefox 77.x; Edge; Opera 64.x. Mac OS X ...
Please see the link below for more information:
Mac OS 11.0 (Big Sur)
