Inclusive tax always shows as £0.00 in breakdown

Question

All the products on my site are inclusive of tax.

However at the cart and checkout stage and also any invoices I'd still like to be able to display what the tax portion was.

Like this site.

The Total is still just £75.05 + £3.99 delivery, but it's good to show the customer what the tax portion was.

Unfortunately on my site magento keeps showing the tax value as £0.00:

I'm using Magento Community Edition 1.7.

I have setup my tax details as follows:

System > Conifguration > Sales > Tax

Sales > Tax > Manage Tax Rules

Sales > Tax > Manage Tax Zones and Rates

Product > General

Is there anything obvious I'm overlooking?

Answer 1

You have set tax calculation to be based on Shipping Origin. This needs to be configured under System > Configuration > Shipping Settings > Origin