safe harbor in estimated tax payments

[bandb2]

Taxpayer's income is IRA RMD and Social Security. RMD has Fed and State withholdings. In March, He sold rental property and realized a gain of $340,000.Factoring Capital Gains, Recapture , and Net Investmant taxes, total is estimated to be $70,000. Can he pay the $70,000 over four quarters or doe he have to pay the entire amount in the first quarter. This is my first time with Safe Harbor Rules.

[IRonMaN]

Your client just needs to pay in enough to cover his 2024 tax (or 110% if his income was high enough) to avoid penalties.  He can pay the remainder of the tax due with the return next year.

[BobKamman]

Results may vary for state income tax, depending on location.  But I think most states would allow payments spread over four quarters.