I have followed instructions (http://www.magentocommerce.com/knowledge-base/entry/ce18-and-ee113-tax-config-ca) to create Canada GST, HST (ON, NB, NF, & NS), then tried to create tax rules.
Whenever creating GST (HST) rule, or BC-PST rule, I received the following error even though definitely there is NO tax rule exists.
"Rules () already exist for the specified Tax Rate, Customer Tax Class and Product Tax Class combinations"
I really appreciate if anyone can help.
Best Answer
The existing answers regarding orphaned entries in the
tax_calculation
table are absolutely right. But there is missing practical information how to get rid of them.You can show the orphaned entries with the following MySQL query:
You can then delete them with: