Is it possible to have payroll costs allocated to WIP Inventory asset account? It seems that you can only select expense accounts for payroll and not asset accounts.

Hello Daniel, 

Welcome to the Community. QuickBooks is a versatile program that enables you to get your work done faster. I'll be glad to provide the info you need so you can move forward with your work. 

At this time, the program allows you to adjust your payroll account mapping using the steps below: 

1. Go to Settings , then Payroll Settings.
2. Select Edit ✎ next to Accounting.
3. Select Edit ✎ to update a specific section.
4. Enter the name of the account, or scroll to choose which account the transactions should go to.
5. Select Save then Done.

For more info about the account preferences, please check out the following article that shows you how to: Change your accounting preferences in QuickBooks Online Payroll. 

Let me know if you have other questions by leaving a comment below. I'll be here to help.