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Thank you so much! To confirm:

1) there is no deadline for both federal and state taxes to submit my amendment?

2) the 3 year deadline to receive my refund is also for state taxes?

3) If I filed in Feb-2025, does that mean that I can submit my amendment by Feb-2028? If so, is there a specific month to submit it for both federal and state purposes?

4) If I decide to wait 3 years to submit my amendment to receive my refund, do I submit my tax return next year the regular way? or does having a pending amendment change anything in the tax filing process?