The Canadian Press-Harris Decima survey taken last week indicates the NDP has 33 per cent support while the Tories have 30 per cent.
But with a margin of error of plus or minus 3.1 percentage points, support for the two parties could be equally split.
The poll of just over 1,000 people suggests support for the Tories has dropped from election day when they received 39.6 per cent of the popular vote.
The NDP's support appears virtually unchanged; in the May 2 election last year, they became official Opposition with 30.6 per cent of the popular vote.
The vote saw the Liberals sink to third-party status with 18.9 per cent of the vote, and the new poll suggests their support still hovers around that mark.
Also on HuffPost