Hello there, @R K. Appreciate the details you've provided. Let me share some information about your Simple IRA.
Based on your details, the employee's MDV annual deduction is $6,812.00, and the 2023 yearly max for Pre-tax deductions is $8,300 for family coverage. To calculate the maximum IRA contribution, you need to find the difference between the IRS pre-tax limit and the MDV deduction. In this case, the maximum IRA contribution would be $1,488.00. However, the employee's contribution is limited to the difference between their MDV deduction and gross salary. Based on the screenshot, it will be $83.05 per pay period.

Also, contributions to Traditional IRAs are considered in the pre-tax max. IRA contributions are taken into account, along with other pre-tax deductions.
Moreover, I recommend consulting your accountant for further guidance.
Additionally, you can check this article for helpful information on wrapping up this year's payroll: Year-end checklist for QuickBooks Online Payroll.
Let me know if you need further clarification about your Simple IRA in QBO. I'll be here to provide assistance. Have a great day ahead.