Thanks for joining the thread, @astoria2. I'm here to share insights about payroll tax calculations in QuickBooks Desktop Payroll.

The option to perform a one-time charge for Social Security and Medicare is unavailable on QuickBooks Desktop.

If these taxes aren't withheld on your employee's previous paycheck, the system will autocorrect the deduction on your next paycheck. Therefore, you don't need to make any manual changes to deduct these taxes.

Therefore, you don't need to make any changes to charge these taxes.

Additionally, you can generate a Payroll Summary report to verify the accuracy of payroll totals, including employee taxes and contributions.

For further details on payroll calculation, covering aspects such as gross wages, payroll taxes, and benefits, refer to this resource: How to calculate payroll.

Moreover, here's an article you can read to assist in monitoring your business's employee expenses: Customize payroll and employee reports.

If you have any follow-up questions about updating Social Security and Medicare deductions, please don't hesitate to insert a comment below. I'll be here to help.