Underpayment penalty not calculating right

Forum|Forum|4 months ago
February 8, 2026
1 reply
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Hello,

I am sure I owe an underpayment penalty, but the software isn't calculating it. I even lowered my estimated payments by a lot, and it still didn't calculate it. My token number is: [removed].

Thanks

Mike9241

Level 15

This forum has no access to your return. Perhaps you don't owe the penalty.

There will be no federal penalties for not prepaying enough taxes if withholding and

timely estimated tax payments equal or exceed 90% of your 2025 tax or
timely estimated tax payments equal or exceed 100% of your 2024 tax (110% if your 2024 adjusted gross income was more than $150K) or
the balance due after subtracting taxes withheld from 90% of your 2025 tax is less than $1,000 or
your total taxes are less than $1,000

in the form 2210, if you check that the IRS should calculate your penalty, TurboTax will not compute any.