Add tax to final price of cart (PS 1.7.5)

[Nicolas Pistillo]

Hi! I'm now trying to apply an additional tax dynamically to the final price of the cart.

The percentage varies according to the customer, in some cases, this tax should not be applied, but i have the necessary data.

I still can't find any solution or documentation about how i can achieve this.

Somebody can help me or know a way to do something like that as clean as possible? 

Thanks community

Edited April 19, 2022 by Nicolas Pistillo (see edit history)

[knacky]

Do you think that if you solve it in more forums, it will be something that someone will give you a ready-made solution?

At addons.prestashop.com there are plenty of modules that can apply different VAT to different customer groups.

I already gave you an adjustment to the display in the cart.

[Nicolas Pistillo]

Hi again, knacky

The problem is: I'm currently developing this functionality for my client and I need to solve it with my module

But it's harder than I thought for my

 

[Ress]

What if you used gift wrapping? Change its name, and set its price and add it when needed, on your terms?

[Nicolas Pistillo]

Can you be more specific, Ress?

[Ress]

The gitft wrapping option may or may not be added to an order, and a charge may be set for this. I'm thinking you could adapt this option, rename it first, and add it programmatically when needed.

[knacky]

When I duplicate topics, it turns out this way.

What he needs is different VAT for a different group.
He wants to see prices without VAT in the basket, but if the customer is in a group with extra VAT, then display these taxes and calculate the VAT price only for products.

 

Edited April 20, 2022 by knacky (see edit history)

[Ress]

Now I understand, it wasn't very clear to me before.

[Nicolas Pistillo]

Sure, Knacky, your example module was very helpful to me, for showing in the views. 

But now I need to add programmatically the value of the custom tax to the order price, change the checkout price in other words.

[knacky]

What you need is not possible in Prestashop.

You can only use one VAT for products, you can't create several.

1. you have to create your own VAT eg 1.7% (administration -> IMPROVE -> International -> Taxes -> Taxes -> button Add new Tax)
2. you have to create a new tax rule for your own VAT 1.7% (administration -> IMPROVE -> International -> Taxes -> Tax rules -> button Add new tax rules group)
3. You must set your own rule for all products (administration -> SELL -> Catalog -> Products -> edit)
4. allow or prohibit prices with or without VAT for customer groups (administration -> CONFIGURE -> Shop parameters -> Customer settings -> Groups -> Edit button -> Price display method)
5. make the TPL as I wrote you