Land transfer tax (commonly referred to as Welcome Tax in Quebec) has been revised and the following factors are used when calculating this tax. The new method consists in using a factor that changes for each municipality on the Island of Montreal. There might be changes in this formula so I would advise you to verify with your notary to make sure you are using the current factor when you buy a house.

Beaconsfield home sale price - $500,000
Evaluation - $445,000 x 1.39 = $618.550
Therefore, the tax will be based on $618.550