After you file

I don't think it is a big deal.
1. If you are due a refund from your original return, wait to receive that refund before filing Form 1040X to claim an additional refund. Amended returns take up to 12 weeks to process. You may spend your original refund while you wait for any additional refund.
2. If you owe more tax, file your Form 1040X and pay the tax as soon as possible. This will reduce any interest and penalties.
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