Can I amend my return to change filing status from Married Filing Jointly to Married Filing Separately after the original filing deadline of April 15th, 2024 has passed?

[VolvoGirl]

No.  You can't amend to change from Joint to MFS after the due date of the return.   See note at top of this article

https://ttlc.intuit.com/turbotax-support/en-us/help-article/small-business-processes/switch-filing-j...