My spouse and I filed married when we werent supposed to. Do i need to refile both of out returns?

[DoninGA]

If you were legally married on or before 12/31/2024 and were living together, then you had to file your 2024 tax return as either Married Filing Jointly or Married Filing Separately. 

[Opus 17]

Please tell us more about your situation, and what you think you did wrong and for which tax years?

[Mike9241]

You can change your filing status from married filing jointly to married filing separately by filing an amended return using Form 1040-X. However, this must be done before the due date of the original return, without regard to extensions. Once the due date has passed, you cannot change from a joint return to separate returns for that year.

the only exception i can see to this is if you could not legally file a joint return under US tax laws.

so we need to know more about your situation since you say you have a spouse which means you are married