TT doesn't calculate Safe Harbor?

[huskerdooo]

Edit: Never mind, I had a math error 

[DianeW777]

It depends. This is calculated based on whether you paid in more than last year's tax to eliminate the underpayment penalty. There could still be a penalty if the payment you made was in a period later than April 15th and not paid evenly throughout the year. If this could be the case then you can use the 'annualized method' to show exactly when the unplanned capital gain you earned in 2024.

• Form 2210 Instructions

You can choose to use the annualized income/tax method in TurboTax by using the steps below. Have  your 2023 return ready just to confirm your numbers.

1. Open your  TurboTax Online or TurboTax Desktop return
2. Search (upper right) > Type underpayment penalty 
   1. TurboTax Online: Click 'See More' at the bottom of the FAQ that pops up > Click on Go to annualizing your tax
   2. TurboTax Desktop:  Click the Jump to.. link
3. Continue selecting to use the annualized method and enter the income in the slots where earned.  For wages, interest, dividends or anything earned equally through out the year divide by 12 and multiply by 3/5/8. Add the unplanned capital gains in the slot where the sales occurred. 
4. Make sure you have entered your estimated taxes in the appropriate quarter in that section. TurboTax will use them to calculate any penalty.
   1. Where do I enter my estimated tax payments?

Generally, you can avoid the penalty if your total timely estimated payments and withholdings are greater than or equal to the lesser of:

• 90% of the total tax after credits for the current year, or
• 100% of the total tax after credits in the prior year
• See one exception below.

You can also avoid the penalty if the amount you owe is less than $1,000 as long as any estimated tax payments you made are timely.

Note: High-income taxpayers. If your adjusted gross income (line 11 of your 2023 Form 1040) is greater than $150,000 (or $75,000 if you're married and file a separate return from your spouse), you can avoid a penalty by paying at least 110% of your total tax from the prior year.