Tax is 0 until an address is entered: no equivalent to Simple Commerce's default_address

[Web10-Joris]

CalculateTaxes skips tax entirely when the cart has no address yet:

statamic-cargo/src/Cart/Calculator/CalculateTaxes.php

Lines 12 to 16 in b34bcbc

	public function handle(Cart $cart, Closure $next)
	{
	if (! $cart->taxableAddress()) {
	return $next($cart);
	}

With price_includes_tax => false (prices stored ex-tax), the cart page then shows the net total and 0% tax until the customer enters an address.

Inclusive pricing sidesteps this, but that isn't equivalent for a store charging destination VAT on a fixed net price across the EU (fixed net + per-country rate, not fixed gross). If we would store prices including VAT, the profit margin for the shop will differ based on the per-country VAT rates.

Simple Commerce covered this with no_address_provided => default_address, so tax was always calculated and presented against a fallback address, until the real customer address was filled in and tax was recalculated. There doesn't seem to be a Cargo equivalent. What is the reason this is left out in Cargo?

Would you accept a configurable default/store tax address, used when the cart has none? Defaulting to unset keeps existing installs unchanged.

[duncanmcclean]

I can't remember why I didn't add a default address 🤔

Anyways, gonna open a PR to add it back shortly (#260)!

[duncanmcclean]

And... tagged: https://github.com/duncanmcclean/statamic-cargo/releases/tag/v1.10.0

Have a good weekend!

[Web10-Joris]

Many thanks Duncan, your swift replies are highly appreciated 🙌. Have a good weekend!