Let me share some insights about this, Jodi.

Yes, we can link different expense accounts to the different pay types in QuickBooks Online (QBO). 

Here's how: 

1. Go to the Gear icon, under the Your Company column, and choose Payroll settings.  
   
   
2.  On the Accounting tab, hit the Pencil icon. 
   
   
3. From the Wage expenses section, press the Pencil icon. 
   
   
4. Choose the Each employee's wages are posted to different types of accounts (ex: salary, contractor, and so on)option. 
5. Select the appropriate accounts for each pay type. 
6. Click Save. 
   
   

Furthermore, you can visit this guide to learn more about modifying your employees' details in QuickBooks: Edit or change employee info in payroll.  

For further concerns about managing your pay types in QBO, hit the Reply button. Have a good one!