Can I set it up so that when I'm entering an expense the default is set to Inclusive of Tax?

Hi there,

Welcome to the Community. QuickBooks is powerful program that helps you get ahead with your work. I'll be happy to show you how to set up a default sales tax code in QuickBooks. 

Here's how:

1. Go to Sales and select Customers. 
2. Select the customer's name.
3. Select Edit.
4. Go to the Tax info tab in the Customer information screen.
5. Select a Default tax code from the dropdown menu.
6. Select Save.

I encourage you to try this out and let me know how you make out. I'll be a message in case you need anything else. 

This answer is not answering the question for Expenses is it?

This shows how to change the tax rate for sales to customers, not expenses to Suppliers.

In QuickBooks Online (QBO), you can't assign a default tax code directly inside a supplier's profile. Instead, you can manage and change tax rates for supplier expenses using the Chart of Accounts, where you can set a default rate for the account that you use for your suppliers.

To configure tax rates for specific types of expenses rather than globally, here's how:
 

1. Go to the Gear icon, and select Chart of Accounts.
2. Check the boxes on the left-hand side of the grid next to the specific expense accounts you use for your suppliers.
3. Click the Batch actions button at the top of the grid, select Set default Tax code, and then choose your desired rate. 
4. Once done, select Apply.

If you have other questions about the program, please don't hesitate to click the Reply button.