2025 form 1040-X

Forum|Forum|5 months ago
February 28, 2026
4 replies
38 views

Line 5 of 1040-X does appear to be doing the math correctly. Turbotax is not subtracting line 4b (Enhanced Deduction for Seniors) from line 3. I am using Turbotax Deluxe Desktop for 2025.

MelindaS1

Level 6

Verify that the enhanced senior deduction factored in correctly onto your original 1040 filing - see Line 13b.

Is the enhanced senior deduction flowing onto Line 4b of the 2025 1040-X in columns A, B, and C? Or is the issue you're seeing isolated to one of the columns: A, B, C? Can you share some of the numbers you're seeing vs. what you'd expect to see for Line 3 minus Line 4b = Line 5?

We'll need specifics to determine if the issue is with the calculation of 1040-X, or if it is elsewhere in your tax return input. If there's a software issue, you may need to send a token of your tax return file so it can be escalated for investigation.

More guidance:

What should I know before amending my return?

Here are some things to know before you begin:

Make sure you really need to amend.

Wait until your return has been accepted (or mailed if paper-filing).

Use the same TurboTax account you used to file your original return.

Once you begin your amendment, you'll see your original return. Only make changes to the areas of your return that need amending. The refund calculator will start new at $0 and only reflect the changes in the refund or tax due.

Any changes you make to amend your federal return will automatically be transferred over to your state return.