How Can I Add Custom Values(Like Tax) to my All Respective Products Cost at checkout

Question

All my products have unique value "custom value", at checkout page, checkout price calculated by original price and customs value as my final price.

• My Need:

1) sku: 1001, price: 100, custom price: 10, at checkout products value : 110;
2) sku: 1002, price: 200, custom price: 20, at checkout products value : 220;
3) sku: 1003, price: 300, custom price: 30, at checkout products value : 330;
4) sku: 1004, price: 400, custom price: 40, at checkout products value : 440;
5) sku: 1005, price: 500, custom price: 50, at checkout products value : 550;

My site consists 20k products.

Note: Tax not Possible Possible, because tax prepared only based on state and city, but mine every product has unique tax value. So Tax completely not possible

How can I apply Individual products tax for my products?

Answer 1

GST is based on product group i guess.so you can create Tax class and rules based on each product group and assign that Tax class to that product group.

For example :

for example electronic products , GST will be same for all electronic products and for clothing products , GST will be same for all clothing products

For more details read this chat

Answer 2

Its just a fix but you can try to add custom option " Tax Price " with only one value and assign the price to it. And Make it required. So when a customer add the product to cart he/she has to select the custom options and the tax will be levied on the product.