Carl
Level 15

Get your taxes done using TurboTax

If I recall correctly (I may not) under the Other Tax Situations tab in the Additional Tax Payments section, elect to start/update Underpayment Penalties. If the program ALREADY KNOWS you have an underpayment penalty based on the information you have already entered in the program, that will walk you through the annualization method to reduce or eliminate any underpayment penalty assessed by the program thus far.