I meant to file married joint and accidently hit married seperate. Can I amend and how?

Yes, you can file an amendment to change your filing status from Married Filing Separately to Married Filing Jointly.

 

Refer to the TurboTax article How to Change Your Tax Filing Status for more information.

 

Don't make any changes until your tax return is fully processed, which means you have received your refund or if you have a balance due, it's deducted from your account. If your tax return is pending, don't make any changes. 

 

Follow the instructions below to prepare your amendment:

 

1. Open TurboTax.
2. Scroll down to Your tax returns & documents and select 2024 for the year you want to amend.
3. Select Amend (change) return, then Amend using TurboTax Online.
4. On the screen OK, let's get a kickstart on your 2024 amended return, select the reason.
5. On the next screen, select Something Else and Continue.
6. On the screen Tell us which 2024 return(s) you want to amend, select 2024 Federal or State.
7. TurboTax will guide you through the screens to prepare your amendment.

For more information and instructions, review the TurboTax articles  How to Correct Federal Tax Returns, How to File an Amended Tax Return with the IRS and  Video: How to Amend Your Tax Return.