Should we file joint if divorced summer last year?

[DoninGA]

No.  If you are not legally married as of 12/31/2025 then you can only file your 2025 tax return as Single or if you have a qualifying dependent, Head of Household.

[VolvoGirl]

If you used Turbo Tax last year you should start a brand new account for yourself and not transfer from last year. You can not remove a spouse, especially if they are the first one listed on your return. Online is only good for 1 return. But you can use the same email address for 5 accounts. Start another Online return here. Sign up and start a new account.
https://turbotax.intuit.com/personal-taxes/online

Getting Divorced article
https://turbotax.intuit.com/tax-tips/marriage/getting-divorced/L20NC66cf

Video tips for Divorced couples
https://turbotax.intuit.com/tax-tips/marriage/video-tax-tips-for-divorced-couples/L8YqvF7p5

[DavidD66]

No.  If you were unmarried (divorced) as of December 31 you cannot use the filing status Married Filing Joint.  You have to file as Single, or if you qualify, Head of Household.