Underused Housing Tax (UHT) Business Address in Canada: Where the UHT-2900 Goes and Why It Matters

Key takeaways

• The Underused Housing Tax (UHT) is a federal 1% annual tax under the Underused Housing Tax Act (UHTA), in force since April 1, 2022, with the first UHT-2900 return due April 30, 2023 for the 2022 calendar year — and still active in 2026 with the deadline rolling annually to April 30.
• Filing obligation hinges on the Excluded Owner vs Affected Owner split — Affected Owners file a UHT-2900 return for each residential property they own on December 31 of the calendar year, even when an exemption reduces the tax to zero.
• Corporate Affected Owners need a UHT program account (BN-RU) added to their Business Number — separate from RT (GST/HST), RP (payroll), and RC (T2 corporate income tax) program accounts.
• The UHT-2900 mails to either the Winnipeg Tax Centre or the Sudbury Tax Centre depending on the owner's address — a routing detail that puts a real corporate mailing address on the critical path, because the GTA / non-GTA / international split sends nearly identical-looking corporations to different tax centres.

What the Underused Housing Tax actually is

The Underused Housing Tax is a federal annual tax on residential property in Canada that is considered underused, calculated at 1% of the property's taxable value. It was enacted as the Underused Housing Tax Act with a January 1, 2022 application date (first taxable calendar year), and the first UHT-2900 returns were due April 30, 2023. The tax targets a narrow population by design — most individual Canadian citizens and permanent residents owning their own home are completely out of scope as Excluded Owners with no filing obligation at all.

The Act draws a hard line between two categories of owner that determines everything downstream:

• Excluded Owner — primarily Canadian citizens and permanent residents holding the property in their personal capacity (not as trustee of a non-mutual-fund trust or as partner of a partnership). Excluded Owners have no UHT obligation — no return, no tax, no penalty. They never see Form UHT-2900.
• Affected Owner — every owner who is not an Excluded Owner. This includes non-residents and non-Canadians, most private Canadian corporations, partners of a partnership that owns residential property, and trustees of a trust that owns residential property. Affected Owners must file a UHT-2900 return for each residential property they own on December 31 of the calendar year, even if a statutory exemption ultimately reduces the tax owing to zero.

The 2024 amendments to the UHTA expanded the Excluded Owner category — most notably, "specified Canadian corporations," "specified Canadian partnerships," and "specified Canadian trusts" were carved into Excluded status for the 2023 calendar year onwards, meaning many ordinary Canadian-controlled private corporations holding a single residential rental no longer have to file at all. The exemption is narrower than it first reads: foreign ownership thresholds, partner-mix tests, and trustee-residence tests all apply. The CRA's UHT guide on canada.ca walks through the specified-Canadian tests in detail, and the 2026 verified-active version of those tests is the one to file against.

Filing obligation and tax liability are two different questions under the UHTA, and most penalties Canadians have paid since 2023 have been late-filing penalties on returns that owed zero tax — Affected Owners who assumed they didn't have to file because an exemption would zero out the tax. The minimum late-filing penalty is C$1,000 for an individual Affected Owner and C$2,000 for a non-individual (corporation, partnership, trust). That structural penalty risk is why the address layer matters: a UHT-2900 that mails to the wrong tax centre, or a corporate registered office change that doesn't reach the CRA in time, is exactly the kind of operational miss that triggers it.

Where the UHT-2900 actually mails: Winnipeg vs Sudbury

The UHT-2900 return is filed annually and routes to one of two CRA tax centres based on the owner's mailing address. The split is the same one CRA uses for several other corporate filings, and it surprises filers who assume a federal return goes to one federal address:

Two patterns to flag from that table. First, a Toronto-headquartered corporation files to Sudbury, while an Ontario corporation registered just outside the GTA files to Winnipeg — same province, same statute, different tax centre, based purely on the mailing address on file. Second, all international mailing addresses route to Sudbury, including non-resident owners filing from abroad, foreign corporations that hold Canadian residential property, and Canadian citizens living outside Canada who happen to be Affected Owners for a specific reason (most commonly because they hold the property as trustee or partner rather than personally).

For corporate Affected Owners, the practical consequence is that the address recorded on the CRA Business Account — the registered mailing address tied to the BN-RU program account — is what determines the routing. If that mailing address is the founder's home in Mississauga (GTA), the UHT-2900 goes to Sudbury; if it's the same founder's parents' home in Hamilton (outside GTA), it goes to Winnipeg. The choice matters less than the consistency matters: a mid-year address change that isn't reflected on the BN-RU account before the April 30 filing date is the kind of clerical slip that gets returns processed late or returned undelivered.

For the broader rule on keeping CRA addresses current across all program accounts, see Changing Your CRA Business Address — UHT joins RT, RP, and RC as the fourth program account on the map for any Affected-Owner corporation.

The BN-RU program account: where UHT sits on the Business Number

A Canadian corporation that is an Affected Owner needs to add a UHT program account to its existing Business Number before it can file UHT-2900. The program-account suffix for UHT is RU, which sits alongside the other program-account letters most Canadian corporations are already familiar with:

The RU account is added through the CRA Business Account portal (My Business Account) or by calling the CRA business enquiries line. The mailing address tied to the corporation's BN flows through to the RU account automatically, which is why the registered-office and mailing address on the corporate file is the upstream record that controls UHT routing — not anything entered on the UHT-2900 itself.

A corporation that already has a Business Number for GST/HST or payroll does not automatically have a UHT program account. The RU account is a separate add-on, and the obligation to add it lands on the corporation as soon as it becomes an Affected Owner of residential property on December 31 of any calendar year. The CRA does not pre-register corporations for UHT.

Non-resident corporations and foreign owners that have no other reason to hold a Canadian Business Number still need one to file UHT-2900 — they register for a BN specifically for the RU account when they become Affected Owners. The registration process for a non-resident is the same one used to open an RT account for GST/HST registration, which we walked through in Non-Resident GST/HST Registration in Canada. The non-Canadian mailing address registered on that BN is what determines whether the UHT-2900 routes to Sudbury (which handles all international addresses for UHT).

The 3-tier vacancy tax map: federal UHT vs provincial vs municipal

UHT is only the federal layer. Toronto and Vancouver homeowners — particularly those holding additional residential properties or vacation homes — sit under a stack of overlapping vacancy / vacant-home / underused-housing taxes that file to different governments on different schedules:

A single residential property in Vancouver owned by a non-resident corporation can sit under three taxes at once: federal UHT (1%), BC SVT (2% for foreign-owner status), and Vancouver EHT (5%). The combined annual liability before exemptions is up to 8% of the property's value, which is the design point of the stack — vacancy taxes are explicitly intended to push underused housing inventory back into long-term rental or sale.

Each tax has its own definition of "vacant" or "underused," its own exemption list, its own declaration form, and its own filing deadline. The UHT-2900 is not coordinated with the BC SVT declaration or the Toronto VHT / Vancouver EHT declarations. An Affected Owner of a Toronto residential property potentially files four separate returns (UHT-2900, Toronto VHT declaration, any provincial declaration if applicable, plus the T2 corporate return that already covers the corporation), each routed to a different government on a different schedule, and each capable of triggering its own late-filing penalty independently of the others.

The short-term rental angle interacts with all three. A property rented out as a short-term rental on Airbnb or VRBO may avoid the "underused" or "vacant" categorization under municipal rules in some cases, but the federal UHT analysis is based on whether the property is the owner's primary residence or has a qualifying tenant on a long-term lease — short-term rental occupancy is generally not a UHT exemption on its own. For the address layer of operating short-term rentals specifically, see Canadian Airbnb Host Business Address.

Corporate-owned residential, family trusts, and non-resident structures

The Affected Owner population that actually files UHT-2900 in volume is dominated by three structures. The address question lands differently on each.

Private Canadian corporations holding residential property. A Canadian-controlled private corporation that owns a residential property — most commonly a single rental property in a parent company's name, or a residential property held inside a holding company alongside other investments — is an Affected Owner unless it qualifies as a "specified Canadian corporation" under the 2024 amendment. The qualification test looks at foreign ownership and control: a corporation is a specified Canadian corporation broadly when no foreign individual or entity owns 10% or more of its votes or equity. Most owner-managed Canadian private corporations pass this test and now qualify as Excluded Owners — but they still had to file UHT-2900 for the 2022 calendar year (under the original Act, before the 2024 amendments) and had to navigate the late-filing penalty waivers CRA issued during the transition. For the address structure of a corporation that holds residential as part of a Holdco-Opco setup, Holding Company Address in Canada covers the registered-office side.

Family trusts that own residential property. A trust other than a mutual fund trust, a specified Canadian trust (where all the beneficiaries are Canadian citizens, permanent residents, or qualifying corporations), or one of a narrow list of other Excluded categories is an Affected Owner. The trustee files UHT-2900 in the trust's name and uses the trustee's mailing address (or the trust's mailing address, if one exists separately) to determine Winnipeg vs Sudbury routing. The T3 trust return and the UHT-2900 are independent filings with independent deadlines, but a single trustee mailing address typically governs both. The trustee's address question — including the mind-and-management residence test that determines the trust's residence — is covered in Family Trust Business Address in Canada.

Non-resident owners and foreign corporations. A non-resident individual or a foreign corporation that owns Canadian residential property is almost always an Affected Owner. The UHT-2900 routes to the Sudbury Tax Centre because all international mailing addresses route there, regardless of where the Canadian property itself sits. A foreign corporation also needs a Canadian Business Number for the RU account — the same BN registration process that applies for any non-resident corporate tax filing in Canada. The broader address-and-registration framework for a foreign corporation operating in Canada is in Foreign Company Doing Business in Canada Address.

In all three structures, the upstream record is the mailing address on the corporation's, trust's, or non-resident's CRA Business Account — not anything filled in on the UHT-2900 itself. Keeping that record current on a real, deliverable Canadian street address is what makes the rest of the UHT mechanic predictable.

Where Auteur fits — a CRA-ready mailing address for the BN-RU corporation

Auteur is a Canadian-owned mailbox service operating real commercial street addresses in Toronto and Vancouver, in Canada Post Unit/# format, built specifically for the registered-office, CRA mailing, and Business Account use cases. For an Affected Owner corporation needing a UHT-2900 mailing path, that lands cleanly:

• The corporation registers (or updates) its BN-RU program account with a real Toronto or Vancouver Unit/# address — not a P.O. box, which CRA's Business Account does not accept for the mailing address of record.
• The Toronto address routes the UHT-2900 to the Sudbury Tax Centre (GTA mailing addresses go to Sudbury). The Vancouver address routes to the Winnipeg Tax Centre (BC mailing addresses go to Winnipeg). The routing is predictable and consistent year-over-year, which is the point — the corporation isn't shifting tax centres every time a director moves.
• The same Unit/# carries the other CRA program accounts the corporation already holds — RC for T2, RT for GST/HST, RP for payroll — so the entire CRA correspondence stream lands at one mailbox, including the UHT-2900 confirmation notices and any late-filing penalty correspondence if it ever issues.
• The director's residential address never goes on the BN-RU file. For private Canadian corporations whose owners are deliberately keeping their home off public corporate registries (the same reason most Canadian small-business owners use a virtual address in the first place), the UHT mailing address inherits the privacy posture rather than reintroducing the home address through a back door.

The Canadian-owned and CRA-ready axes are doing most of the work for the UHT use case — the BN-RU account, the Winnipeg / Sudbury routing, and the CRA Business Account address-of-record are all CRA-internal mechanics that a Canadian-operated mailbox service can speak to directly. The Toronto and Vancouver locations match where most UHT-affected residential property actually sits (Toronto VHT and Vancouver EHT zones being the densest), and the Canada Post Unit/# format is what the CRA Business Account expects on the mailing address field.

Common mistakes Affected Owners make

A few patterns recur in UHT enforcement that come back to the address and BN layer specifically:

• Filing the UHT-2900 without adding the RU program account first. A T2 BN with RC/RT/RP does not automatically include RU. The UHT-2900 needs an RU account number; without it, the return is processed slowly or rejected.
• Filing to the wrong tax centre because the corporate mailing address is stale. A registered-office update made for OBCA or CBCA purposes does not automatically flow to the CRA Business Account — they're separate filings to separate registries. A corporation that moved its registered office from Hamilton (Winnipeg routing) to Toronto (Sudbury routing) needs to update CRA directly.
• Assuming an exemption removes the filing obligation. Affected Owners file UHT-2900 even when an exemption reduces tax owing to zero. The minimum late-filing penalty (C$2,000 for corporations) applies to the return itself, not the tax — so a zero-tax exemption return filed late is still a C$2,000 penalty.
• Conflating UHT with the municipal VHT or EHT declarations. Toronto VHT and Vancouver EHT are separate municipal filings to the city, not the CRA, with their own deadlines (typically February or early March) ahead of the April 30 UHT-2900 deadline. The municipal declarations are also mandatory for most owners in those cities regardless of UHT Affected Owner status.
• Assuming "specified Canadian corporation" status without testing it. The 2024 amendment carved many ordinary Canadian-controlled private corporations into Excluded status, but the test is foreign-ownership specific. A CCPC with even a 10% non-resident shareholder may still be an Affected Owner. The CRA UHT guide on canada.ca has the current specified-Canadian tests and is the source to confirm against for the 2026 filing.

FAQ

Do I have to file Underused Housing Tax in Canada? You file UHT if you are an Affected Owner of a residential property in Canada on December 31 of the calendar year. Most individual Canadian citizens and permanent residents holding their own home in their personal name are Excluded Owners and file nothing. Affected Owners include non-residents and non-Canadians, most private Canadian corporations (subject to the specified-Canadian-corporation test added in the 2024 amendments), trustees of trusts that own residential property, and partners of partnerships that own residential property. Even when an exemption reduces tax owing to zero, an Affected Owner still has to file the UHT-2900 return — the late-filing penalty is on the return, not the tax.

How to file UHT for a corporation? A corporate Affected Owner first adds a UHT program account (BN-RU) to its Business Number through CRA My Business Account or by calling CRA business enquiries. The corporation then files Form UHT-2900 for each residential property it owned on December 31 — one return per property per calendar year. The return mails to either the Winnipeg Tax Centre or the Sudbury Tax Centre depending on the corporation's mailing address on file with CRA (Western Canada / Ontario outside GTA goes to Winnipeg; GTA / Eastern Canada / international goes to Sudbury). Online filing is also available through My Business Account once the RU account is active. The deadline is April 30 of the following year (April 30, 2026 for the 2025 calendar year).

What address should I put on my UHT-2900 return? The UHT-2900 carries the owner's mailing address as it appears on the CRA Business Account (for a corporation, partnership, or trust) or on the individual's CRA file (for an individual Affected Owner). The address determines whether the return routes to Winnipeg or Sudbury, so the cleanest practice is to update the CRA mailing address before filing if it's stale, rather than entering a different address on the UHT-2900 itself. The property address is recorded separately on the return — that's the address of the residential property the return relates to, not the owner's mailing address.

Who is exempt from Underused Housing Tax in Canada? There are two distinct exemption layers and confusing them is the most common UHT mistake. The first layer is Excluded Owner status — Excluded Owners don't file at all, and this is where individual Canadian citizens and permanent residents holding property personally sit. The 2024 amendments expanded Excluded Owner status to cover specified Canadian corporations, specified Canadian partnerships, and specified Canadian trusts. The second layer is statutory exemptions for Affected Owners — primary residence, qualifying occupancy by a long-term tenant, new construction, seasonally inaccessible property, uninhabitable property, and a few others. Affected Owners with a statutory exemption still file UHT-2900 (showing tax owing of zero); only Excluded Owners file nothing.

Bottom line

The Underused Housing Tax sits federally above two municipal vacancy taxes (Toronto VHT, Vancouver EHT) and one provincial vacancy tax (BC SVT), each with its own form, deadline, and government recipient. For corporate Affected Owners — the structure that generates most of the UHT-2900 filings — the upstream record that controls the whole filing path is the mailing address on the BN-RU program account, which routes the return to either the Winnipeg or Sudbury Tax Centre based on the GTA / non-GTA / international split. Keeping that address on a real, deliverable Canadian street in Canada Post Unit/# format is what makes the rest of the mechanic predictable: the C$2,000 minimum late-filing penalty for corporate Affected Owners makes the address layer worth the few minutes it takes to set up cleanly.

Reserve a Toronto or Vancouver address for the BN-RU program account, the T2 corporate return, and the rest of the CRA correspondence stream — a single Canadian Unit/# mailbox that the UHT-2900 routes to on a predictable schedule.

For the broader CRA program-account update map when a corporate address changes mid-year, see Changing Your CRA Business Address. For non-resident corporations registering for a Canadian Business Number — typically RT for GST/HST and RU for UHT together — see Non-Resident GST/HST Registration in Canada.