Charitable donations error, form 8283. Need to amend tax return

[oscarkris]

i e-filed 2018 tax return today and noticed that I made error in my charitable deductions (not in my favor). Tax return now accepted by IRS. I owe this year (no refund). Should I amend via form 1040X after payment due on April 15 or amend now (i know i'll owe more)?

[Leonard]

No, you do not have to wait until you make your payment on April 15 to file an amendment to your tax return that has been accepted by the IRS.

The link below has information of filing an amended tax return that you may find useful.

https://ttlc.intuit.com/replies/3288565