Can I deduct extra federal income tax from a paycheck?

Thanks for taking the time to reach out to the QuickBooks Community, 6443.

I'm here to help provide some insights about the employee's payroll taxes.

QuickBooks Online (QBO) is set up to add both Federal and State additional amount that withheld on the employee's paycheck. 

 Here's how to enter the state withholding additional amount:

1. In the left tab, select Workers.
2. Choose Employees.
3. Double-click your employee's name.
4. Click Pay pencil-icon.
5. Select What are Texas's withholdings? pencil-icon.
6. Scroll-down to state taxes.
7. Enter the amount on the Additional amount tab. 
8. Click Done. 

Once done, you can review the employee's paycheck to ensure the state withholding an additional amount calculated accurately.

For additional reference, you can check this article: Change employee details.

That should do it! Fill me in if you have additional questions about the payroll taxes. I'll be around to help. Wishing you and your business continued success.

Hello there, 

You may want to check the Employee's profile about their withholding taxes. 

I'd be happy to show you the steps below:

1. Go to the Payroll menu and select Employees.
2. Look for the employee's name and click it.
3. Select the Pencil icon in the What are (employee's name) withholdings? section.
4. Review if you have the correct details and change them if necessary.
5. Select Done.

Try to run a payroll and use a check so that you can void and delete it after that. This is done to check if it's calculating the withholding taxes correctly. If it's still not, you may consider the wage range of your employee. Here's an article for more details: IRS Publication 15 Circular E. Go to the Withholding From Employees' Wages section on page 22.

Feel free to tag my name in the comment section if you need further assistance or other questions. I'll be here to help.