What is B-20 (OSFI Guideline B-20) in Canadian mortgages?
Federal mortgage underwriting guideline requiring federally-regulated lenders to: apply the stress test, cap HELOC at 65% LTV, verify income documentation, and maintain sound LTV limits.
B-20 example
Worked example
Credit unions are provincially regulated and not bound by B-20, but many follow similar standards voluntarily.