TORONTO - Ontario NDP leader Andrea Horwath says a Harmonized Sales Tax will penalize hockey kids across the province.

Horwath appeared at a community centre in Toronto today, where she criticized plans to merge the federal and provincial sales taxes.

She says the HST will add eight per cent more to the cost of renting ice time for teams.

Currently, more than 250,000 young people participate in organized hockey leagues in Ontario, but many more cannot afford to play, the NDP said.

Julian Heller, the NDP candidate running in a byelection in the Toronto riding of St. Paul's, says the HST will make hockey even more expensive.

The by-election is set to take place Sept. 17.