It sounds like you made estimated payments for tax year 2021. Make sure to enter the payments you made with the original voucher into TurboTax so that you can get credit for the payments made, otherwise, your tax liability would be overstated.
If you have entered the estimated payments and you still did not pay enough resulting in a balance due on your return, you can schedule your payment with your tax return when you are ready to e-file. I don't see the purpose of making another payment right before you file unless you are considering filing an extension.
@kathyuhl
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