Underused Housing Tax: why corporations get caught

Few federal filing obligations have caused as much confusion as the Underused Housing Tax. It was introduced as a tax on foreign owners of empty Canadian homes, and broadly that is what it does. But the way the legislation identified who had to file swept in a large group of ordinary Canadian owners who owed nothing — most commonly a small corporation.

What the Underused Housing Tax actually is

The Underused Housing Tax (UHT) is an annual federal tax of 1% on the ownership of vacant or underused housing in Canada, in effect since January 1, 2022. The CRA describes it as generally applying to foreign national owners of housing in Canada, while noting that in some situations it also applies to some Canadian owners — specifically certain partners, trustees and corporations. That last clause is the whole story. The tax was aimed at one group; the reporting net was drawn around a much larger one.

Filing and paying are separate questions

This is the mechanism that trips people up. The UHT applies two independent tests:

• Are you an affected owner? If yes, you file a return for the property. Every affected owner files.
• Do you qualify for an exemption from the tax? If yes, you file the return and pay nothing.

An owner exempt from the tax is not exempt from the return. Ownership is tested as of December 31 of a calendar year, and returns are filed per property — an affected owner of three residential properties files three returns, and where several affected owners share one property, each files separately. The category that escapes both obligations is the excluded owner, and generally Canadian owners of residential property are excluded owners.

Why corporations were the ones caught

An individual Canadian citizen or permanent resident owning a house in their own name has almost always been an excluded owner. A corporation was in a different position, as was someone holding property as a partner of a partnership or a trustee of a trust. Hence the consistent profile of the surprised filer:

• A small operating or holding company that happens to own a house, duplex or condo.
• A family that put a rental property inside a corporation for liability or estate reasons.
• Co-owners in circumstances that might be characterised as a partnership rather than simple co-ownership.
• Anyone holding registered title for somebody else — the classic bare trust arrangement.

What changed — and why the year matters more than the rule

On June 20, 2024, amendments to the Underused Housing Tax Act contained in Bill C-69 received Royal Assent. The CRA's summary of their effect is direct: with those amendments, starting with the 2023 calendar year, the majority of Canadian owners of residential property do not have to file a return or pay the tax. The changes did several things at once:

• More Canadian owners were brought inside the definition of excluded owner — the change that removed most accidental filers.
• An additional exemption category was added for employee accommodations.
• Vacation properties were added to the exemptions to which an adjusted penalty calculation may apply.
• Reaching back to 2022, the original minimum penalty was reduced and certain residential condominium units were removed from the definition of residential property.

The practical consequence is that a corporation's position for 2022 and for a later year can differ even though nothing about the property changed. Anyone reconstructing several years at once has to answer the question separately for each.

Deadlines and penalties, with a caution

The due date to file, make elections and pay for a calendar year is April 30 of the following calendar year. The CRA currently publishes minimum late-filing penalties of $1,000 for an individual affected owner and $2,000 for a corporation, with a further adjustment where an affected owner claiming certain exemptions has not filed by December 31 of the following year. Treat those figures as a reason to file on time rather than as settled numbers — the minimum has already been reduced once by amendment.

Provincial and municipal vacancy taxes are separate

The CRA is explicit that provincial and municipal vacancy taxes are different taxes, implemented by different governments, and that exemption from one does not exempt an owner from another. In British Columbia a property can sit inside more than one vacancy regime at once.

What to actually do

• List every residential property held, and identify the capacity in which it is held on December 31 of each year in question.
• Test excluded-owner status for each capacity and year against the rules as they stood then.
• If an affected-owner conclusion appears, determine whether an exemption applies — and file regardless.
• Keep the analysis inside your record retention system rather than in somebody's memory.

If a return should have been filed and was not, that is a correction question. The Voluntary Disclosures Program exists for taxpayers who want to fix the record first, and timing matters most.

The bottom line

The UHT is a small tax with an oversized compliance footprint, because it separated the duty to file from the duty to pay and then drew the filing definition around legal form. If residential property sits anywhere inside a corporate or trust structure you control, the question is not whether you owe this, but whether you are required to file, for this year, in this capacity. If you hold rental property through a company, this belongs on the real estate investor side of your file.

This article is general information for Canadian business owners and is current as of July 2026. It is not tax, legal or accounting advice, and it does not create a client relationship. Tax rules change and your situation is unique — please speak with a CPA before acting on anything here.