Mortgage Investment Corporation Address Rules in Canada: Setting Up a MIC's Registered Office

Key takeaways

• A mortgage investment corporation (MIC) is a special flow-through lending vehicle defined in section 130.1 of the Income Tax Act — not a holding company and not a mortgage brokerage — and its address question splits across three different roles that are easy to conflate.
• The MIC is still an ordinary corporation for registry purposes, so it carries a registered office under the CBCA or a provincial statute: a real physical street address in the jurisdiction of incorporation, never a P.O. box, kept current within the statutory filing window.
• A MIC almost always raises capital by selling its own shares, which pulls in securities-regulator filings (typically the CSA offering-memorandum exemption), and the manager arranging the underlying mortgages often needs a mortgage-broker registration with BCFSA or FSRA — each of which sees a business address of its own.
• A virtual mailbox in Canada Post Unit/# format can cleanly cover the registered-office mailing surface, the address-of-record on the securities filing, and the regulator-correspondence surface — but it does not substitute for any premises a regulator can physically inspect, or for where the corporate records and shareholder register are kept available.

What a MIC is — and why its address question is different

A mortgage investment corporation (MIC) is a Canadian corporation that pools shareholder capital and lends it out as mortgages, then flows the interest income back to its shareholders. It is defined in its own provision of the Income Tax Act — section 130.1 — which gives it a near flow-through character: a MIC that distributes its taxable income to shareholders as dividends generally pays little or no corporate tax itself, and under s.130.1(2) those dividends are taxed in the shareholders' hands as interest income rather than as ordinary dividends.

That definition matters for the address question, because a MIC is none of the three things people instinctively compare it to:

• It is not a holding company. A holdco passively holds shares of an operating company; a MIC actively originates or buys mortgages and runs a lending book. The address logic for a holdco-opco pair (covered in Holding Company Address in Canada) does not transfer.
• It is not a mortgage brokerage. A brokerage arranges mortgages between borrowers and lenders for a fee; a MIC is the lender. The two often sit side by side — a brokerage may manage a MIC — but they are separate corporations with separate regulator files.
• It is not a generic small business. Because a MIC sells shares to raise its lending capital, it touches securities law in a way an ordinary corporation never does.

The result is that the same MIC can have an address showing up in three different places at once: on the corporate registry as the registered office, on a securities filing as the issuer's address, and on a mortgage-broker registration if the MIC or its manager holds one. Getting these aligned — or deliberately separated — is the part most "how to start a MIC" content skips.

The registered office rule for a MIC

Whatever else a MIC is, it is first a corporation, and every corporation in Canada has a registered office. A MIC can be incorporated federally under the Canada Business Corporations Act (CBCA) or provincially — under the OBCA in Ontario, the BCBCA in British Columbia, or the equivalent statute elsewhere. The registered-office rule is the same one that binds any corporation:

• A registered office address in the jurisdiction of incorporation — the province named in the Articles for a federal MIC, or the province of incorporation for a provincial one.
• A real, deliverable physical location, not a P.O. box. The address must be capable of receiving service of legal process.
• It can be a director's residence — but that residential street then appears on the public corporate registry, searchable by anyone, which for an entity that solicits investor capital is rarely the privacy posture you want.
• A change of registered office must be filed within the statutory window — 15 days to notify Corporations Canada under CBCA s.19, with provincial windows differing slightly.

A virtual office or commercial mailbox that issues a real street address satisfies this rule; Corporations Canada's own guidance acknowledges that pattern while flatly excluding P.O. boxes. For the broader distinction between the registered office, the records office, and the head office of a single corporation, see Registered Office vs Records Office vs Head Office in Canada — a distinction that matters more than usual for a MIC, because the corporate records include a shareholder register that section 130.1 indirectly cares about (more on that below).

Where the securities regulator and the mortgage-broker regulator each see your address

This is the layer that separates a MIC from an ordinary corporation, and it is where most generic address guidance stops being useful.

The securities regulator. A MIC raises its lending capital by issuing shares to investors. Distributing securities triggers provincial securities law administered through the Canadian Securities Administrators (CSA) — the umbrella for the provincial commissions (the Ontario Securities Commission, the BC Securities Commission, and so on). Most private MICs raise capital under a prospectus exemption rather than filing a full prospectus, and the common route is the offering-memorandum (OM) exemption under National Instrument 45-106. An OM, and the exempt-distribution report (Form 45-106F1) filed afterward, both carry the issuer's address. That address is the MIC's business address as the issuer of the securities — and it is generally the registered office unless the MIC deliberately uses a separate head-office address.

The mortgage-broker regulator. Originating or administering mortgages is itself a regulated activity. Depending on the province and the MIC's structure, the MIC itself, or the manager that runs its mortgage book, may need a mortgage-broker or mortgage-administrator registration:

• In British Columbia, mortgage broking and administration fall under BCFSA's mortgage-broker regime — the Mortgage Brokers Act, which BC is replacing with the Mortgage Services Act effective October 13, 2026 — which requires a registered business address and an address for service inside the province.
• In Ontario, FSRA licenses mortgage brokerages and mortgage administrators, each of which must maintain a principal place of business inside Ontario.

Whether a given MIC needs that registration depends on exactly who originates and administers the mortgages and how — a structure question for the MIC's securities and mortgage-regulatory counsel, not something to assume from a blog. The general guidance is honest hedging: a MIC that lends through a registered manager may carry the broker-regulator address on the manager's file, while a self-managed MIC may need that registration in its own name. Either way, the regulator that issues the registration expects a real, in-province business address — not a P.O. box.

The address mechanics of the underlying mortgage-broker registration are covered in Mortgage Broker Business Address in Canada; the head-office chain that securities regulators expect from an issuer is the same one detailed in CSA Crypto Trading Platform Business Address in Canada, which walks through how a securities regulator treats the registered head office of a registrant.

MIC vs holding company vs mortgage broker: three corporations, three address roles

Because these three structures are so often confused, here is how the address role differs across all three. A single founder might own all three — a holdco at the top, a MIC for lending, and a brokerage that originates deals — and each needs its own correctly-placed address.

The practical takeaway: a MIC sits in the middle in complexity. It has the holdco's corporate-registry obligation, plus a securities layer the holdco never sees, plus — depending on structure — a mortgage-broker registration layer the holdco never sees either. The one address that flows cleanly through all of those surfaces is a real commercial street address in the province of incorporation, in Canada Post Unit/# format.

The s.130.1 requirements that touch your corporate records

Section 130.1 does more than define a MIC's tax treatment — it imposes qualification tests a corporation must meet throughout the year to be a MIC. Those tests reach into the corporate records that sit at (or are accessible from) the registered or records office. The Act sets, among others:

• A minimum-shareholder requirement — a MIC must have 20 or more shareholders, with the share structure restricted so that no single shareholder (together with related persons) is a specified shareholder — broadly, one holding more than 25% of the shares of any class. These thresholds are set in s.130.1(6); confirm them against the current provision before structuring, because they are precise statutory figures that careless guides often round or restate incorrectly.
• An asset-composition test — at least 50% of the cost amount of a MIC's property must consist of debts secured on residential property plus money and certain liquid assets (cash and insured deposits), with the requirement again set out in s.130.1(6). Confirm the exact composition against the section before relying on it.
• A restriction tying the MIC to investing in mortgages on Canadian real property and holding the prescribed mix of assets, rather than operating as a general investment company.

What that means for the address question is concrete: a MIC must be able to demonstrate these tests, which requires keeping an accurate, current shareholder register and asset records. Under corporate law those records live at the registered office or a designated records office (in BC, the BCBCA requires a separate records-office address, which can be the same as the registered office or different — see the records-office distinction linked above). The address you choose has to be one where those records are kept available, or from which they can be produced, if CRA examines the MIC's s.130.1 status or a securities regulator reviews the issuer.

This is why the honest position is: a virtual mailbox can be the registered-office mailing address and the issuer address-of-record, but the shareholder register and asset records themselves still need a defined home — typically held electronically by the MIC's administrator or counsel — and the MIC's records policy should say where that is. The mailing surface and the records surface are two different things.

One caution on the precise thresholds: the shareholder count, the single-holder cap, and the asset-composition ratio in s.130.1(6) are exact statutory figures, and they are commonly misquoted. Read them in the current text of section 130.1, or confirm them with the MIC's tax counsel, before structuring on them.

What a virtual mailbox can and cannot do for a MIC

Honest hedging matters here, because a MIC touches a securities regulator and possibly a mortgage regulator, both of which have inspection powers that go beyond mail delivery.

A virtual mailbox in Canada Post Unit/# format can:

• Serve as the MIC's registered office mailing address under CBCA s.19 or the provincial equivalent, receiving CRA T2 correspondence, service of legal process, and corporate-registry mail.
• Appear as the issuer's address-of-record on the offering memorandum and the Form 45-106F1 exempt-distribution report, so investor and regulator correspondence about the securities reaches the MIC.
• Receive registered mail from CRA, from the securities regulator, and from a mortgage regulator without anyone needing to be physically present at the address.
• Keep a residential address off the public corporate registry and off the issuer disclosure that investors and aggregators can search.

A virtual mailbox cannot:

• Substitute for the location where the shareholder register and asset records are kept available for a s.130.1 examination or a securities review. The records can be electronic, but the accountability for producing them stays with the MIC.
• Substitute for any premises a regulator physically inspects during a market-conduct or compliance review — particularly relevant if the MIC's manager holds a mortgage-broker registration with inspection exposure.
• Replace the mind-and-management question of where the MIC is actually directed and controlled, which can matter for both tax residence and regulatory jurisdiction.

Most MIC setups use the virtual address for the registered-office, issuer, and regulator-correspondence surfaces, and keep the records-and-inspection question documented separately. That separation is defensible and is the configuration regulators expect.

Toronto and Vancouver: how Auteur handles a MIC's address

Auteur is Canadian-owned, with Toronto and Vancouver commercial addresses sized for the two provinces where most Canadian MICs incorporate and raise capital. An Ontario MIC overseen by the Ontario Securities Commission and, where applicable, FSRA uses a Toronto address; a BC MIC overseen by the BC Securities Commission and, where applicable, BCFSA uses a Vancouver address.

Every Auteur address is issued in Canada Post Unit/# format — street number, street name, Unit/#, municipality, province, postal code — which is the format the corporate registry, the securities filing, the mortgage regulator, and bank KYC all expect. A P.O. box prefix is rejected on the registered-office field; a Unit/# commercial address passes. The same address can flow onto the Articles of Incorporation as the registered office, onto the offering memorandum as the issuer address, and onto a mortgage-broker registration if the MIC or its manager carries one — one address, aligned across every surface from day one.

Three things to confirm before using a virtual address for a MIC:

• Province alignment. Ontario MIC → Toronto address; BC MIC → Vancouver address. The registered office must sit in the jurisdiction of incorporation, and each provincial securities and mortgage regulator expects an in-province address.
• Records-and-inspection policy. The MIC's records policy should describe where the shareholder register and asset records are stored (typically electronic, held by the administrator or counsel) and how they are produced on request. The virtual mailing address sits alongside that policy, not in place of it.
• Regulator structure. Whether the MIC itself, or a separate manager, holds the mortgage-broker registration determines whose file carries the broker-regulator address. That is a counsel decision; the virtual address can serve whichever entity needs it.

Reserve a Toronto or Vancouver address and the MIC's registered office, issuer disclosure, and regulator correspondence can all carry the same Canada Post Unit/# address from the day the corporation is formed.

Canada Post Unit/# format for a MIC's registered office

The corporate registry, the securities filing, and bank KYC all validate addresses against standard Canada Post format: street number, street name, Unit/# (the unit assigned by the commercial mailbox provider), municipality, province, postal code. The "Unit" or "#" indicator signals a deliverable address with a specific recipient slot — the same convention every multi-tenant commercial building in Canada uses.

A P.O. box prefix is rejected on the registered-office field across federal and provincial registries, and a rural-route designator without a Unit/# attached is treated the same way. The Unit/# format is the cleanest match for the registry's validation, which is why every Auteur address is issued that way. The format detail is in Registered Office vs Records Office vs Head Office in Canada, and the holdco-side address logic — relevant if your MIC sits under a holding company — is in Holding Company Address in Canada.

FAQ

Is a mortgage investment corporation the same as a REIT? No. Both pool investor capital around real-estate-related assets, but they are different vehicles under Canadian law. A mortgage investment corporation (MIC) is defined in section 130.1 of the Income Tax Act, lends money as mortgages, and flows interest income to its shareholders as dividends taxed as interest under s.130.1(2). A real estate investment trust is a trust, not a corporation, governed by a different set of Income Tax Act rules and typically holding income-producing real property rather than mortgages. Their address obligations differ accordingly: a MIC carries a corporate registered office and an issuer address on its securities filing; a trust carries a trustee's address and files a trust return. This guide covers the MIC.

Does a MIC need a securities licence to sell its shares in Canada? A MIC raising capital by selling its shares is distributing securities, which engages provincial securities law administered through the CSA member commissions. Most private MICs rely on a prospectus exemption — commonly the offering-memorandum exemption under National Instrument 45-106 — rather than filing a full prospectus, and the people selling the shares may themselves need to be registered or rely on an exemption. The offering memorandum and the exempt-distribution report carry the MIC's issuer address. Whether a specific exemption applies, and what registration the sellers need, is a securities-counsel question — but in all cases the issuer's address appears on the filing, and it should be a real, deliverable address.

Can a MIC use a virtual address as its registered office? Yes, for the registered-office mailing surface. A MIC is an ordinary corporation for registry purposes, so a real commercial street address in Canada Post Unit/# format satisfies the registered-office rule under the CBCA or the provincial statute, exactly as it would for any corporation. A P.O. box does not. What a virtual address does not do is replace the location where the MIC's shareholder register and asset records are kept available for a section 130.1 examination, or any premises a securities or mortgage regulator physically inspects. Most MICs use the virtual address for the registered-office, issuer, and correspondence surfaces and document the records-and-inspection side separately.

Bottom line

A mortgage investment corporation is a section 130.1 lending vehicle, not a holding company and not a mortgage brokerage — and its address question splits across three roles that ordinary small-business guidance never separates. The MIC carries a registered office under the CBCA or a provincial statute, an issuer address on its CSA offering-memorandum filing, and possibly a mortgage-broker registration address with BCFSA or FSRA. The shareholder-count, single-holder, and asset-composition tests in s.130.1(6) also mean the MIC must keep records available where they can be produced if CRA examines its status — read those exact thresholds in the provision itself rather than from a summary.

A commercial Canada Post Unit/# address from Auteur in Toronto (for an Ontario MIC) or Vancouver (for a BC MIC) covers the registered-office, issuer-disclosure, and regulator-correspondence surfaces cleanly, and leaves the records-and-inspection question with the MIC's own policy where it belongs.

Reserve a Toronto or Vancouver address and the same address goes on the Articles as the registered office, on the offering memorandum as the issuer address, and on the regulator file from the day the MIC is formed.