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Glossary
Tax

Underused Housing Tax (UHT)

A federal 1% annual tax on the value of vacant or underused residential property in Canada, primarily targeting foreign owners but also requiring certain Canadian owners to file a return. The tax applies to properties that are not used as a primary residence or occupied by a qualifying tenant for at least 180 days per year. Canadian citizens and permanent residents who are sole owners of their property are generally exempt but some ownership structures, such as holding property through a corporation or trust, may trigger a filing obligation.

Why It Matters

The UHT is designed to discourage leaving housing stock empty in markets where supply is already tight. In the GTA, foreign owners who keep condos or houses vacant face this tax on top of the Non-Resident Speculation Tax paid at purchase. Even some Canadian owners -- particularly those holding property through corporations or partnerships -- need to file a UHT return to confirm their exemption, with significant penalties for failing to file on time.

Real-World Example

A non-resident owner holds a two-bedroom condo in downtown Toronto valued at $700,000. The unit sits vacant for the entire year while the owner lives abroad. The 1% UHT applies, resulting in a tax bill of $7,000 for the year. If the owner had rented the unit to a tenant for at least 180 days, the exemption would have applied and no UHT would be owed. Additionally, the owner must file a UHT return by April 30 each year -- failing to file triggers a minimum penalty of $5,000 for individuals or $10,000 for corporations, even if no tax is actually owed.

Ontario & GTA Context

In the GTA, the UHT compounds the cost burden for foreign owners who already paid the 25% Non-Resident Speculation Tax at purchase. A vacant $1 million condo would face $10,000 per year in UHT on top of property taxes, condo fees, and the opportunity cost of the NRST. Canadian citizens and permanent residents who are sole owners of their property do not need to file a UHT return. However, Canadians who own property through a partnership, trust, or corporation must file to confirm their exemption.

How It Works in Practice

If you are a Canadian citizen or permanent resident and the sole registered owner on title, you are automatically exempt and do not need to file. If you hold property through any other structure -- corporation, trust, partnership -- file the UHT return by April 30 even if you owe nothing. The penalties for late filing are severe and not proportional to the tax owed.

Common Questions

Do Canadian citizens need to file a UHT return?
Canadian citizens and permanent residents who are sole registered owners on title are excluded owners and do not need to file. However, if you own property through a Canadian corporation, trust, or partnership, you must file even though you will likely qualify for an exemption. The filing obligation is separate from the tax obligation.
What counts as a qualifying occupancy to avoid UHT?
The property must be occupied as a primary residence by the owner or their spouse, rented to a qualifying tenant under a written agreement for at least 180 days in the calendar year, or occupied by an eligible individual. Short-term rentals under 28 days do not count toward the 180-day occupancy threshold.

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