Adding extra taxes due to an Estimated Tax payment
Recently I transferred money out of an annuity to cover a 2023 RMD. Taxes were not taken out, but I want to add the Federal tax amount to an upcoming 4th Quarter Estimated Tax payment I have coming up due soon. I plan to pay my 4th Quarter Estimated Tax in December. How would I add an additional amount to that payment to help cover the taxes due from the RMD?