WooComm Gravity Forms Product Add-Ons tax mods

Hello,

We use WooCommerce along with Gravity Forms Product Add-Ons for our services. For example we have a service that has varying fees depending on location of client. So the base price may be 100 and the fee could be either 50, 75, 100, etc depending on the location.

To make it more confusing the product may also have various add-on options that are taxable.

So we might have WooCommerce product X priced at $100 along with a fee (added via GF PA that should be tax exempt) of $50 and an additional add-on priced at $25 which is taxable.

So we need to calculate tax on $125.00 and not $175.00. I don’t mind adjusting the tax amount that WC has calculated but not sure where I would hook in to do this.

Thanks