suddenly paycheck does not have any tax withholding

Thanks for posting to the Community, @sogen.

Let me share some insights on why the employee's paycheck doesn't withhold taxes and state some helpful spots.

It can be:

• The total annual salary exceeds the salary limit.
• The gross wages of the employee's last payroll are too low.
• Ensure to run the latest payroll update to keep your taxes updated.

Since you have updated your payroll, let's also make sure your QuickBooks is in the latest version, as well as your tax table. Then, review the employee's tax setup since it affects how QuickBooks calculates it.

Once done running payroll update, please revert your employee's paycheck. It refreshes your payroll information to calculate the taxes on the transaction by following these steps below:

1. Open your employee's Payroll Information.
2. Right-click the name of your employee with yellow highlights. 
3. Select Revert Paycheck

For more troubleshooting solutions when payroll taxes are not withholding, please refer to these articles:

• Payroll items on a paycheck are not calculating or are calculating incorrectly
• QuickBooks Desktop calculates wages and payroll taxes incorrectly

Please let me know if you need a hand with running employees' payroll reports. I'll be here to help. Take care, and enjoy your day!

thank you for the suggestion.  I fixed the problem by sending all data to quickbooks.