Is it an Estimated payment or a payment with an extension or a refund applied from last year?
To change Federal or State Estimated Taxes Paid, including a state estimated payment made in January for the prior year, go to
Federal on left or at top (Personal for Home & Business)
Deductions and Credits at top
Then scroll way down to Estimates and Other Taxes Paid
Estimated Taxes - click the start button
Then change the amount to zero.