looking for extension for selective tax in checkout page.

Hi,

looking for an extension that can do:

a custom field (2 checkboxes) in checkout page

when checked , it will apply the tax to the subtotal price , like this screenshot




when left-side is checked or unchecked , the right-side's $3.78 will be added or removed and total price is re-calculated


thanks in advance.

best regards,

Have you considered this extension?

https://www.opencart.com/index.php?rout ... n_id=38089