Each year TurboTax needs a newer Operating System. Can I skip upgrading and use my older Operating System with online tax prep?

[Bill-in-NC]

Can TurboTax online work with an Operating System that is too old for the downloaded program?

[macuser_22]

Yes.  You only need a browser for online.   Be aware, that the online features and pricing are different and online accounts are only good for ONE tax return.

[Bill-in-NC]

Thank you for your prompt reply! I don't doubt that you are correct, but I would appreciate corroboration from  another member. Does everyone agree with this answer?

[SteamTrain]

Sure...Just a browser, but there are minimum browser requirements too...though they do go quite a way back.

https://ttlc.intuit.com/community/system-requirements/help/turbotax-online-system-requirements/01/25...

...other..

1) no Forms Mode

2)  State for Deluxe & higher versions is always an added purchase not indicated in the main price you see on the main pricing page.

3)   Free is not always available for a person's situation....Free version will only do the very very simplest of tax returns.  No itemized deductions...no brokerage transactions...no SE income.....certain credits can't be used.

(and an opinion:  never use a smartphone...always use a large-screen computer)