2025 estimated tax if my tax was $0 in 2024

[gg33]

Do I have to file and pay estimated tax for 2025 if my 2024 tax was $0 and I have no idea what my 2025 tax will be--all depends on whether I sell stock for capital gains. In some past years I have  owed several thousand and other years very little or $0.

[Mike9241]

Form 2210 instructions (the form used to calculate underpayment of estimated tax penalties)

Exceptions to the Penalty for not paying estimated taxes:
You won't have to pay the penalty or file this form if the following applies.
• You had no tax liability for 2024, you were a U.S. citizen or resident alien for the entire year, and your 2024 tax return was (or would have been had you been required to file) for a full 12 months.

you won't be penalized for not paying 2025 estimates even if you end up owing.