Yes. You can add this extra payment while you're preparing your 1040X. In Deductions and Credits, under Estimates and Other Taxes Paid, choose Estimates. Next select, Federal Estimated taxes for 2024, and at the bottom of that page select +Add another payment under the Additional Payments section. Enter the date paid and the amount, then continue. Include a summary explanation for this change in your reason for amending too.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"