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Canadian Mortgage Glossary · Lenders & Industry

Credit Union

Definition

A credit union is a member-owned, provincially regulated financial cooperative that offers mortgages and other banking products to its members, often with more locally tailored underwriting than a national bank.

Updated: August 1, 2026 Reviewed by the Treadstone underwriting desk
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How does a credit union differ from a bank for mortgage purposes?

Credit unions are cooperatives — borrowers typically need to become a member, often through a small share purchase, before the credit union will lend to them. Because they're smaller and community-rooted, credit unions sometimes show more flexibility on unique properties or local circumstances than a national bank branch would.

Credit unions still assess GDS and TDS like any other lender, and brokers frequently treat well-capitalized credit unions as part of the prime, A-lender tier alongside banks and monolines.

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How it’s used in Canada

Provincially regulated: credit unions are overseen by provincial regulators rather than OSFI federally — in Ontario that's FSRA, which also regulates mortgage brokering.

Membership required: borrowers typically need to become a member, often via a small share purchase, before a credit union will lend to them.

Ratios still apply: credit unions still assess GDS and TDS, though internal policy can be more flexible than a bank's for local or unique properties.

Often grouped with A lenders: brokers frequently treat well-capitalized credit unions as part of the prime, A-lender tier, alongside banks and monolines.

Sources

  1. 1.FSRA — Mortgage Brokering (Industry) fsrao.ca
  2. 2.Financial Consumer Agency of Canada — Choosing a mortgage canada.ca

Definitions reflect Canadian federal and provincial rules as of the “Updated” date above. Not advice for any specific file.

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