You can add custom tax codes for any tax codes you need. You can also edit the rates for any of the custom taxes you set up in QuickBooks Online.
To edit a tax code that you added:
- Select Taxes from the right menu (or GST depending on what you see).
- At the top left, select Edit rates from the drop-down under Edit tax Agency. Depending on your region, you might find Edit rates under Edit GST or Edit VAT.
- Select Edit next to the tax code you want to change. You'll only see the edit option next to codes you've created.
- Make the desired edits and select Save.
Changes to the tax code will apply to any future transactions you add it to. If you need to change the tax rate for an existing transaction, open that transaction and edit the rate manually.