# Price List with tax included and Tax Rules

Hi All,

We’ve found some special case regarding tax rules with tax included. The fact is that the customer has a tax rule that adds a non direct tax (recargo de equivalencia or IRPF). So the sale line have two taxes:

• One for the normal VAT amount (from the product)
• Another for the Recargo (added from the tax rule)

As tryton reads both taxes, the resulting prices is lower than with a single tax (customer without tax rules).

I will expect that the same price list returns the same unit_price for the product no mather what tax rule has the party. An with this amount we compute the taxes special for the customer. The reasoning here is that normally you only take in account the product taxes when desiging the price lists (as you can not control other taxes).

For example if you have a tax rate of 10%, and a public list price of 11 (including taxes) the current behaviour is the following:

• Without tax rule, the unit_price is 10.0
• With an introcomunitary tax rule (tax is replaced to 0%), the unit_price is 11.0
• With additional tax of 5%: the unit_price is 9.6552 (11/ 1.15)

I will expect that in all cases the unit_price is 10.0, and the correct taxes for the customer are applied.

I’ve discusses this case with some Spain Integrators and we all agreed that this behaviour is what is expected in Spain.

Does other countries behave the same way?

This is the reason why using price list with tax included does not work for all businesses. It is usually only for B2C.

In our case we have B2C with a little bit of B2B customers. That’s how we encountered this problem.

For me we can make it work bor both if we only reverse the taxes of the product but not the extra ones set on the lines.

But that’s against the principal design of the module which is that the price list give the final price the customer will pay.
If you always reverse compute with the same taxes, there is no point to make the computation as it will always be the same result. So use a price list tax excluded so you will always have the same unit price.

I can see one case with the Recargo. As it is not really a tax, I could understand that such customer would expect that the price tax included would be without it.
This could be solved by defining that such tax should be removed from the `taxes` context in `_get_context_sale_price`. This may be done using a flag on the tax or by adding a list of tax to exclude on the price list.

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