Simple answer: you can just do the whole thing when you file for 2021.
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You should make estimated tax payments for the current tax year if both of the following apply:
- 1. You expect to owe at least $1,000 in tax for the current tax year, after subtracting your withholding and credits.
- 2. You expect your withholding and credits to be less than the smaller of: 90% of the tax to be shown on your current year’s tax return, or 100% of the tax shown on your prior year’s tax return. (110% if your income will be more than $150K) . Your prior year tax return must cover all 12 months.
TurboTax (TT) can prepare the quarterly payment vouchers. In your 2020 software (any version will work), enter at:
Federal Taxes or Personal (H&B version)
-Other Tax Situations
-Other Tax Forms
-Form W-4 and Estimated Taxes - Click the Start or Update button
On the next screen answer No to the W-4 question
If your goal is just to avoid the underpayment penalty, then paying 100% of the prior year tax liability is the “safe haven”
Or you can obtain blank IRS Form 1040-ES from the IRS. The form and instructions are at this link: https://www.irs.gov/pub/irs-pdf/f1040es.pdf
You can also pay Federal directly here. Be sure to select 1040ES:
https://www.irs.gov/Payments
You will not be able to do NC estimated payments, in TT, because you do not have NC software. But you do not need to do NC estimates since your 2020 NC income was 0.
