Can we add tax overrides value to the customer.json as i want to override the existing country tax.

Hello, I am trying to override the existing country tax with the new collection override tax.

I added a new collection and set the tax to some other value then the country tax but on the checkout, I only get the country tax on checkout. Any idea how to add that one the collection override value.

here is the screenshot of my tax and the JSON I got on checkout

On code I have take the shop.county_tax_rate instead i would like to take the 5% that i have added on tax override.