topic Re: Underpayment penalties in Get your taxes done using TurboTax

Underpayment penalties

user17750638846 — Wed, 01 Apr 2026 18:27:11 GMT

how to fill 'Long-term capital gains and losses' screen for penalty recalculation?
I had stock capital gain $30000 for 2025 and $10000 Capital Loss Carryover from 2024. The net capital gain for 2025 was $20000. My actual gain for 1/1/2025 to 3/31/2025 was $ 8000. Should I fill amount $8000? Or fill amount -$2000(8000- 10000) for 1/1/2025 to 3/31/2025?
Since I had $10,000 carry over from 2024, I didn't pay estimated tax in early 2025 when I got gain $8,000. If Turbo Tax subtracts $10,000 at end of year, I have to pay penalty for the gain I had at early 2025. It doesn't make a sense for me.

What is the right way to fill that screen?

Thank you.

Re: Underpayment penalties

ThomasM125 — Wed, 01 Apr 2026 18:47:07 GMT

You can treat the $10,000 loss carryover from 2024 as applying to the 1st. quarter, since at the end of the quarter you had no taxable gain on which to pay estimated tax.

Re: Underpayment penalties

user17750638846 — Wed, 01 Apr 2026 22:09:11 GMT

That means that I can fill -$2000 as capital gain for 1/1/2025 to 3/31/2025. Right?

Thank you.

Re: Underpayment penalties

RobertB4444 — Wed, 01 Apr 2026 22:13:55 GMT

That is correct.