Why are my estimated tax payments showing up under income and again under deductions?

[JulieH1]

Did you enter them this way?

Enter any federal, state or local estimated tax payments you’ve made under Estimates, in the Estimates and Other Taxes Paid section. You'll find this section in Deductions & Credits under either the Federal Taxes tab or the Personal tab, depending on the product. For a shortcut, type “estimates paid” in the search box and use the “Jump to” link.

Your state and local tax payments are automatically transferred to your state return. We’ll also use them to determine whether you’d benefit from itemized deductions, instead of a standard deduction.

If so,  it could be just a display issue on that summary page.

If you are using the Desktop software.....Switch to "Forms Mode"

Open the "Tax Payments" worksheet and check all the data on that form....look for any double-entered data.  If it's OK there, it will go into your final tax forms OK  (but yeah, you'll need to double-check the final paper forms)