Did you read
http://docs.ofbiz.org/display/OFBTECH/OFBiz%27s+Tax+Authority+Data+Model ?
De : "vijay Si" <
[hidden email]>
> How are "Tax Category" "Tax Duty Code" and "Tax Vat Code" in the
> "Create Product " associated with the Taxes that we set up for particular
> categories through "Tax Authorities".
>
> For egg. I created a Tax Authority "abc tax department"
>
> In that after defining geo and party id's i say "include TAX in price" [This
> means VAT Collection rite?]. So now "abc" is set up as a VAT Tax collecting
> authority.
"include TAX in price" is only to show or not the included tax in prices in eCommerce
> Next i select categories of products for a particular store to which this
> VAT Tax will be applied.
>
> Now there are 2 approaches
> 1 :: When i created a product i should not give any of the above 3 {"Tax
> Category" "Tax Duty Code" and "Tax Vat Code" }. Then when i put the product
> into a particular category taxes will be applied automatically for that
> product as i have mentioned that category under particular tax authority.
>
> 2 :: If i want to have product level tax rules {sales tax, customs, excise,
> vat} than where should i define those rules for that product.
Jacques
> Regards
> Vijay
>