Amounts are "exclusive of tax" is now changed to always be "inclusive of tax" and its wrecking my invoicing and costing me money when i forget! how do i change this?

Hello there, Dixon. I can only imagine how annoying this can be when your invoicing settings keep changing and affect your pricing. This usually happens because your default tax rate selection is set to Inclusive of tax. 

To make changes, go to the Gear icon > Account and Settings > Advanced. Under the Accounting section, you can set the Default tax rate selection to Inclusive of tax, Exclusive of tax, or Out of scope of tax.

You can also update the Tax rate directly in the Invoice tab. In the left corner, click the Amounts are drop-down and select your preferred option. Refer to the image below for guidance.
 

Once updated, your invoices will stay set to the tax option you selected, helping you maintain accurate pricing and consistent invoicing. 

If you have any further questions or need assistance with QuickBooks, feel free to click the Reply button.