When you buy land or an interest in land in Ontario, you pay land transfer tax. First-time homebuyers of an eligible home may be eligible for a refund of all or part of the tax.
To claim a refund, you must be at least 18 years of age, you cannot have owned a home or an interest in a home anywhere in the world, and your spouse cannot have owned a home or interest in a home, anywhere in the world while he or she was your spouse. Previous ownership in a home means you do not qualify for the land transfer tax first-time homebuyers refund. The method of acquiring the home (e.g., purchase, gift or through an inheritance) is not relevant.
More information available here:
Land Transfer Tax Calculator
Use this online calculator to help you calculate your land transfer tax: