Consultant who worked for First Nations asked to pay for GST

The CBC has reported that an obscure tax case going through the courts in Winnipeg could result in consulting firms having to pay huge amounts into government coffers.
First Nations communities usually do not have to pay Goods & Services Tax on professional services, but according to court transcripts Crown lawyers for Canada Revenue Agency are asking that more restrictive rules in the Indian Act be applied to a case involved a business consultant Ron Phillips. The federal agency is demanding that Phillips should pay tens of thousands of dollars in goods and services tax that he didn’t collect from his First Nations clients.
Lawyers from the Assembly of First Nations have said they will fight the ruling if the court decides against Phillips.