Amending 2020 IRS payment now Due with new adjusted unemployment benefit

[Shakeley15]

Efiled 2020 return. Return was Accepted by IRS bit payment due has not been sent in yet.  Payment is due in May now, but we are eligible for the new unemployment deduction which will change what we owe. What do we do?  File an Amended return?  Wait for us to hear from IRS, if they are making adjustments?  Send them a letter with our now "wrong" payment coupon with some kind of money (with not knowing how much is actually now due)?

[ee-ea]

ee this from the IRS    https://www.irs.gov/newsroom/irs-to-recalculate-taxes-on-unemployment-benefits-refunds-to-start-in-m...

and this FAQ

https://ttlc.intuit.com/community/internal-revenue-service/help/how-is-my-state-taxing-unemployment-...