Are You a First-Time Homebuyer for CMHC Purposes? Understanding the Rules When Your Spouse Owns the Home

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Determining whether someone qualifies as a first-time homebuyer depends entirely on which legal or lending program is being applied. In Ontario, the definition used for the Land Transfer Tax (LTT) rebate is significantly different from the definition used by CMHC and other mortgage insurers such as Sagen and Canada Guaranty.

A frequent point of confusion arises when only one spouse owns the current home, but both spouses live there. When these clients apply for a high-ratio insured mortgage, lenders often request confirmation that one spouse qualifies as a first-time homebuyer—often to permit 30-year amortization options.

So the critical question becomes:

Does living in a spouse’s home disqualify you from being a first-time homebuyer for CMHC purposes?

The answer is very clear: No.

Below is the full explanation.

CMHC’s First-Time Homebuyer Definition: Ownership, Not Occupancy

CMHC’s definition of a first-time homebuyer focuses solely on whether the borrower has ever owned a home—not whether they have lived in one.

Under the CMHC Mortgage Loan Insurance Underwriting Policies, a borrower is a first-time homebuyer if they:

“Have not previously owned a home or had an interest in a home.”

For CMHC purposes, an “interest in a home” means a legal or beneficial ownership interest, including:

  • Being registered on title,
  • Holding beneficial ownership (even if not registered),
  • Ownership through a corporation or trust where the borrower is the beneficial owner.

CMHC does NOT expand “interest” to include merely living in a home owned by a spouse or partner.

That means:

  • Living in a spouse’s home,
  • Contributing to mortgage payments,
  • Sharing expenses,
  • Occupying the home as the matrimonial home,

does not disqualify you from CMHC first-time buyer status, so long as you have never owned property or held a beneficial ownership interest.

Legislative Authority Behind CMHC’s Rules

CMHC’s authority to define first-time buyer criteria comes from:

  • Canada Mortgage and Housing Corporation Act, s. 6(1)(g)
  • National Housing Act, s. 8(1)

Neither statute defines “first-time homebuyer.” Instead, CMHC establishes and controls the mortgage insurance criteria through its Underwriting Policy Manual, which lenders are required to follow.

Because occupancy is not included in the manual, it is not part of the legal test.

Contrast: Ontario’s Land Transfer Tax Rules Are Much Stricter

Ontario’s definition of a first-time buyer for the LTT refund is entirely different.

Under Ontario Regulation 70/91, a purchaser is ineligible for the refund if:

  • They previously owned a home, or
  • They occupied a home owned by their spouse after becoming spouses.

This is where many lenders and even some lawyers become confused, they apply the Ontario tax definition to a CMHC insurance question, even though the two tests have nothing in common.

What Lenders Expect: Declarations, Not Guesswork

When a lender conditions the file for confirmation of first-time buyer status, the safest and most appropriate approach is to prepare a Statutory Declaration in which the borrower confirms:

  • They have never owned real property;
  • They have never held any beneficial ownership;
  • They meet the CMHC definition of a first-time homebuyer.

This allows the lawyer to truthfully certify the declaration without being asked to verify occupancy history, which is irrelevant to CMHC’s test in any event.

Lenders accept this approach because it aligns directly with CMHC’s underwriting requirements.

Example Scenario

A couple is purchasing a new home. The current home is owned solely by the wife. The husband has lived there for years but:

  • Has never been on title,
  • Has no beneficial ownership interest,
  • Has never owned real property.

For CMHC purposes, he is a first-time buyer.
For Ontario LTT purposes, he is not.

This simple comparison highlights why the rules must always be analyzed according to the correct program.

Key Takeaways for Buyers and Realtors

1. CMHC uses an ownership-based test.
Occupancy, whether with a spouse or otherwise, is irrelevant.

2. Ontario’s land transfer tax rules are completely different.
Occupancy of a spouse’s home disqualifies a purchaser from the LTT refund, even if they never owned the home.

3. Proper documentation matters.
A lawyer should prepare a sworn Statutory Declaration confirming CMHC first-time buyer eligibility where requested by a lender.

4. First-time buyer status may unlock better mortgage terms.
This may include 30-year amortizations for insured mortgages, which can meaningfully reduce monthly carrying costs.

Why Choose Rabideau Law?

Ontario’s Leading Experts on Real Estate Legal Requirements and Mortgage Compliance**

Real estate transactions are filled with technical distinctions that can significantly affect financing, tax obligations, and closing requirements. Misinterpreting the definition of a first-time homebuyer can cost clients thousands of dollars—or jeopardize mortgage approval altogether.

At Rabideau Law, we:

  • Understand CMHC, Sagen, and Canada Guaranty underwriting rules in detail;
  • Know the differences between federal mortgage insurance criteria and Ontario’s LTT requirements;
  • Prepare the correct legal documents, Statutory Declarations, opinion letters, and certifications, so deals close smoothly and on time;
  • Work with lenders, brokers, and realtors across Ontario to prevent issues before they arise.

Whether you’re a first-time buyer or a professional supporting one, our team ensures your transaction is legally compliant, properly documented, and fully protected.

Rabideau Law: Ontario’s trusted real estate lawyers.
We make complex transactions simple.