Hey there, @ea4CDO.

Thanks for joining this conversation. Allow me to step in for a moment and share some information about the 401k retirement plan in QuickBooks Online (QBO).

Just to clarify, are you trying to set up the 401k retirement plan? If so, you can choose the Retirement Plans as the Category. Here's how:

1. Go to the Gear icon at the top, then pick Payroll Settings under Your Company column.
2. On the Payroll section, select Deductions / Contributions, then click Add a New Deduction/Contribution.
3. For Category, choose Retirement Plans and select the applicable retirement plan for the Type.
4. Enter the name, then OK.

For your reference, you can also check out this article for further guidance: Set up or change a retirement plan.

This should answer your concern. Please let me know how it goes or if you're referring to something else by leaving a comment. I'd be glad to answer if you have any additional questions. Take care and have a great weekend!