How can i change the default on expenses to 'Amounts are Inclusive of Taxes'

Hi there, 

QuickBooks Online makes it easy to change the default setting to be 'inclusive of tax'. I'll be happy to share more info on this. 

 Follow the steps below to modify your default tax selection and let me know if you have any other questions. 

1.     Click on the Gear icon.
2.     Select Account Settings.
3.     Select the Advanced tab. 
4.     In the Accounting section, you can change the Default tax rate selection. 

Let me know if you have questions, otherwise, have a great day!:)