How to fix a paycheck that has already been deposited but no taxes were taken out?

Thanks for coming to the Community for your concern, @smithfarm1. Incorrect payroll calculation is usually caused by an outdated tax table. Please ensure to run a payroll tax table update before processing payroll.

As an insight, QuickBooks will automatically correct the calculation when you run the next payroll. But, it only applies to social security and medicare. 

in your case, since the check is already cashed, you can delete or void the incorrect paycheck. Then, create an unscheduled one with a correct tax withholding. 

Once done, I'd suggest you ask your employees to return to you the overpaid amount. You can also have an agreement with your employees to let you deduct the overpayment from their next paycheck. Just ensure to create a Non-Taxable payroll deduction item to indicate the overpayment. 

For additional information, refer to this article: Reduce paycheck wages for an employee who has been overpaid.

Let me know how it goes or if you have other questions. I'll be looking forward to answering your next posts. Have a great day!

Hi there, @smithfarm1.

Hope you’re doing great. I wanted to see how everything is going about fixing the paychecks concerns you had yesterday. Was it resolved?

Do you need any additional help or clarification? If you do, just let me know. I’d be happy to help you at any time.

Looking forward to your reply. Have a pleasant day ahead!

I had the same problem and ran a paycheck today . How do I know it added the missed amount from the previous check?

Hello, @mojo6352.

I recognize you had an adjustment from your previous paycheck. I'm here show you how to see the payroll adjustments in QuickBooks Desktop.

We can run a specific report to let the added amount will display. Open the Payroll Detail Review Report for the whole month of December. Furthermore, we can only add and view the payroll items that have corresponding rates, for example, Medicare, Social Security, SUI, FUI, and other local taxes.

Here’s how:

1. Go to Reports at the top menu bar.
2. Select Employees & Payroll, then choose Payroll Detail Review Report.
3. Click on the Customize Report button.
4. Choose Display.
5. Under Columns, enter Name in the search field.
6. Go to the Filters tab, and enter Payroll Item in the Choose Filter box.
7. In the Payroll Item drop-down, choose All Gross Pay.
8. Click on OK.

Since we are here, I got here an extra options for customizing these types of reports in this article: Customize payroll and employee reports.

You might want to pay your payroll liabilities with QuickBooks Desktop in the coming years. See this article:  How to use QuickBooks to pay payroll taxes and other liabilities.

Please keep in mind that you can contact me here if you have any further questions about payroll reports. Thank you for visiting the Community, and best wishes for continued success.