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A B lender is an alternative mortgage lender — often a trust company or other non-bank institution — that serves borrowers who don’t meet an A lender’s standard credit, income, or ratio requirements, usually at a higher rate and with a lender fee.
B lenders exist to fill the gap between prime banking and private financing. They're a common landing spot for self-employed borrowers whose declared income doesn't fully reflect their earnings, applicants with recent credit issues, or files that just miss an A lender's debt-service limits.
Because B-lender mortgages fall outside standard default-insurer eligibility, they're almost always uninsured, and the lender holds more of the risk itself — which is reflected in the rate and fees the borrower pays. Many B-lender clients treat the arrangement as a bridge: rebuild credit or stabilize income for a year or two, then look to refinance back to an A lender at renewal.
Provincially regulated: most B lenders are trust companies or other entities regulated provincially rather than by OSFI, so Guideline B-20 does not bind them directly, though many apply comparable underwriting discipline.
Uninsured mortgages only: B-lender deals are almost always uninsured, since they fall outside CMHC, Sagen, and Canada Guaranty eligibility rules.
Broker-driven channel: mortgage brokers and agents typically place B-lender files after a client is declined at an A lender, or when the client's situation is temporary.
Rate and fee trade-off: borrowers usually pay a higher interest rate and a lender fee in exchange for more flexible income and credit criteria.
Definitions reflect Canadian federal and provincial rules as of the “Updated” date above. Not advice for any specific file.
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