No, it is not, at least not out of the box. Tax is per SKU, so technically you can have all SKUs in a category or catalog to have same tax category, but there is no way to enforce that.

Thanks for your reply.How can I apply tax for different countries(which has diffrent Tax) with same SKUs.

For Example,

In my site,I have dealer from different countries.I need to apply different tax value for same SKU.

For each tax category you can define multiple tax jurisdictions for multiple address. So it's not really limited to a specific market 

Thanks.I tried to create Tax for different countries.But retrieving tax value using address returns null.How can I achieve this..

TaxValue[] taxess = OrderContext.Current.GetTaxes(gid, taxCategory, market.DefaultLanguage.Name, "USA", "AL", "35006", string.Empty, "United States", "Adger");   ////it returns null value.


var taxes = TaxManager.GetTax(variationRows[0].TaxCategoryId); ///this code works for me...but I have different counties.but its retrieve default country value

TaxValue[] taxess = OrderContext.Current.GetTaxes(gid, taxCategory, market.DefaultLanguage.Name, "USA", "AL", "35006", string.Empty, "United States", "Adger");   ////it returns null value.

Are you sure that there is a tax defined for this exact address? Can you try with a less specific one? 

And I think you need full name for the state - I'm not so sure ...

Yes, I use Same Address.But It doesn't work.Is there any Configuration problem ?(web.config)

There's no configuration in web.config affect tax settings.

Can you try with a simpler tax define? For example, just match country = 'USA'.

I tried.It does not working..

TaxValue[] taxess = OrderContext.Current.GetTaxes(contactId, taxCategory, market.DefaultLanguage.Name, "USA", string.Empty, string.Empty, string.Empty, "", string.Empty);


var testtax = TaxManager.GetTaxes(contactId, taxCategory, market.DefaultLanguage.Name, "USA", "", "", string.Empty, "", "");

////both yields no results