If the IRS sent you a letter concerning the taxes being reported on the wrong line, follow their directions. Otherwise, amend the return and report the tax payments as estimates paid.
HOW TO ENTER ESTIMATED TAXES PAID:
Sign in and open your return, Click “Pick up where I left off” (for online)
Type estimated tax payments into the search box and click the “Jump to estimated tax payments” link
Click Start next to the type of entry you wish to make
Click Deductions & Credits
Scroll down to "Estimates and Other Taxes Paid” Click Show More
Scroll down to "Estimated Tax Payments" Click Start