You can override your Tax rate on specific product by using Tax override function
How to set up tax override
Go to Admin > Products > All > Choose one of the product that wish to do tax override.
Navigate to "Pricing" section and click on
Show more.
Toggle on "Tax override". Fill the item's specific tax rate. Click
Save.
Example: Store tax (10%), if the product has Tax override of 5% then the store tax will not be applicable anymore towards that particular product