Get your taxes done using TurboTax

yes to avoid underpayment penalty you either need "as you go" thru the year via withholding or timely ES payments, the smaller of - 100% of your 2024 tax (110% if AGI > 150k which sounds like your case), or 90% of your 2025 tax.  Presumably you've already done the math that 110% of 2024 tax is less than 90% of your 2025 estimated tax.  With caveat I'm not a CPA, and I don't know if there is anything unusual about your situation, but from what I understand on this topic you'll always meet safe harbor paying ES based on 2024 tax, especially if you expect a large income increase for 2025, provided you pay the ES timely every quarter and evenly.  Everything is known, so you don't need to worry about fluctuations in your estimate or the timing of these income events during the year.  This is also the default method TT uses to generate ES vouchers based on 2024 tax and withholding, unless you provide estimates for 2025 under Other Tax Situations / Form W-4 and Estimated Taxes; as an extra check you can try going thru this interview section and you should see TT continuing to recommend ES based on 2024.

 

This FAQ is helpful https://www.irs.gov/faqs/estimated-tax

 

and the instructions for Form 2210 for any other caveats for high income but I think it's just using 110% of 2024 instead of 100%

https://www.irs.gov/instructions/i2210#en_US_2024_publink1000305514

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