Error in "capital gains/loss" form. Error corrected, but capital loss (3K) still not on line 13 of the 1040X form. Please advise.

[MarilynG]

Line 13 on Form 1040X is 'Estimated Tax Payments'.  The changed amount in Capital Gains would show on Line 1, Adjusted Gross Income (screenshot).

However, you would also have a new Form 1040 to attach to the Form 1040X when you mail in your Amended Return, and this would reflect a change in Capital Gains on Line 13. 

If you have not already filed, you don't need to Amend your Return; you can simply make the needed changes in the appropriate section of TurboTax.

Here's some helpful info:

https://ttlc.intuit.com/replies/5370831