At the moment i am trying to get the product price including tax in a php file for my product feed. I have this code at the moment:
$_product = Mage::getMode
You can get a helper-instance in any file using:
Mage::helper('tax')
Your full code is:
$_product = Mage::getModel('catalog/product')->load($productId); $_priceIncludingTax = Mage::helper('tax') ->getPrice($_product, $_product->getFinalPrice());