I'm here to clarify things for you so you can retain accurate records in QuickBooks, cdiconstruction.
In QuickBooks Online (QBO), the employer and employees have separate wage base limits for Social Security and Medicare taxes. Thus, this entry is shown twice in the report.
Social Security and Medicare are deducted from the employee's paycheck. On the other hand, the Social Security and Medicare Employer is the employer's portion of the tax.
To clarify, may I ask how you manually handled your first payroll checks? Is it through Journal entry (JE)? If so, QuickBooks doesn't recognize this on the payroll side of the platform. You can accurately generate it using the Run payroll option from the Payroll menu:

If you've created a JE to record the payroll check, you can delete it and keep the data that was processed via Run payroll.
However, if the payroll checks were initiated using the regular process (Run payroll) and are confirmed duplicates, I recommend contacting our support team. They have the specialized tools that authorize them to delete inaccurate Social Security and Medicare entries.
Here's how to connect with them:
- Go to the (?) Help menu, then Search tab.
- Enter "Contact us" in the designated search field. Then, press Enter on your keyboard.
- When prompted, click the Contact Us button.
- Choose a way to connect with us:
- Chat - start a conversation with our live chat support.
- Callback - receive a call from our next available agent.
To learn about our expert's availability, kindly check the Support Hours section of this link: Get help with QuickBooks products and services.
I'm also attaching these resources so you can review your overall payroll transaction totals in a given time frame:
If you have more questions about your Social Security and Medicare data, drop a comment below. The Community is available 24/7 to assist.