dmertz
Level 15

Get your taxes done using TurboTax

You have until January 15, 2024 to make a Q4 estimated tax payment (or January 31, 2024 if you file your tax return by that date and pay the balance due).  Still, if none of the safe harbors apply, to avoid an underpayment penalty you would need to annualize income on Schedule AI of Form 2210, an onerous task.

 

It's possible to avoid needing to make an estimated tax payment by manufacturing tax withholding which can apply equally to each of the tax quarters, thus avoiding the need to annualize income.  You could temporarily increase tax withholding from wages through the end of the year or perhaps obtain an IRA distribution before then end of the year, have the bulk of that distribution withheld for taxes and then use other funds, if available, to complete a rollover of that distribution.  The downside of using an IRA distribution and rollover is that the distribution is subject to the one-rollover-per-12-months limitation.