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