In your situation,
withholding + estimated tax must be 110% of your prior year tax
IRS requires four Estimated Tax contributions, on the specified dates,
in addition to your withholding which by default is apportioned evenly to those dates.
To make this work you must start with the First Estimated Tax payment which is due April 15th 2024.
Since you missed the first two estimated tax payments, it may not work to eliminate all penalty.
If you meet the prior year tax test on withholding alone there is no penalty
See Form 2210 for options that may reduce or eliminate your penalty such as-
- Check Box D and file Form 2210.
- Use Schedule AI.
- increase withholding for the rest of the year
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