How do I fix a problem with the Medicare and Social Security tax calculation for two salaried employees?

Let's get this resolved, Jeannie. I admire you for sharing the complete details of your concern about payroll taxes not being calculated on your two salaried employees in QuickBooks Online (QBO). Allow me to provide the reason and steps to make sure it is correctly calculated.

Let's go to your employees' profile and review it. To guide you further, please follow these steps to proceed:

1. Go to the Payroll menu, then Employees.
2. Select your employee.
3. From Tax withholding, click Edit.
4. Make sure the Social Security and Medicare taxes from the Tax exemptions sections are unchecked.
5. When finished, select Save.
   

Regarding the generated payroll checks, you'll have to delete or void them and recreate them with the correct tax exemptions. Follow these steps to delete or void the paycheck:

1. Navigate to the Payroll menu, then choose Employees.
2. Click on the Paycheck list tab.
3. Choose the paycheck(s) to delete or void, then tap Delete or Void from the Action column.
4. Hit Yes to confirm.
   

In case you are unable to delete or void the paycheck, I recommend reaching out to our Payroll Support Team to assist you with the process. They use specific tools to pull up your account in a safe environment and help you void/delete the paycheck.

Once done, you can now recreate the paychecks for your employees using their updated details. This way, you'll be able to report their payroll and tax info to the appropriate agencies on time.

I've also added this article that will help you identify what specific report you're going to use to keep track of your books about payroll: Run payroll reports.

Please come back and keep us posted on your progress in recreating the paychecks. I'm here to ensure this gets resolved. Take care and have a great day ahead!