You filed on March 26th and your return was rejected? You didn't resend your return until April 21st and it was rejected again?
You only have 5 days to correct a reject after the filing deadline for it to be considered a timely filed return. Your April 21st submission was already passed the April 15th deadline.
Are you due a refund or are do you have a balance due? If you are getting a refund there will be no penalty. If you have a balance due, you will have a failure to file penalty since it is past the deadline and interest will be accruing on your balance due as of April 15th.
What was you return rejected for?
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