-- The "100% of prior year's tax" rule applies to withholding only, not Estimated Tax.
-- That's why you may have to complete Form 2210.
When I say Estimated tax, I mean withholding. My 2024 withholding is more than 2023's total tax.
TurboTax page for 2023 Tax Liability says
"Enter the amount in your 2023 Form 2210 line 4 or Form 2210-F line 6.".
I use H&R Block to prepare 2023 tax return. They do not give me Form 2210 nor Form 2210-F.
