TORONTO - First Nation groups are marching the streets of Toronto today to protest the HST.

More than one hundred people made their way along University Avenue before stopping at Queen's Park, where they had been earlier in the day.

The groups say the new harmonized tax will rob them of a point-of-sale exemption on the provincial portion of the merged tax.

A report from the Chiefs of Ontario says the change will cost First Nation groups up to $120 million in the first year alone.

Ontario Regional Chief Angus Toulouse also says merging the GST with the provincial sales tax starting July 1 will punish many communities that are already living in poverty.

Premier Dalton McGuinty says he's "firmly"' on the side of First Nations and blamed the federal Conservatives for stonewalling his attempts to preserve the tax exemption.