A useful rental-property model separates potential rent, vacancy, operating expenses, net operating income, financing, capital reserves, tax, and sale assumptions. A positive monthly number alone does not establish value, suitability, or future performance.
Decision points
- 01
Calculate NOI before mortgage payments.
- 02
Stress vacancy, repairs, insurance, strata fees, and interest rates.
- 03
Keep income tax, appreciation, refinancing, and sale proceeds outside the base operating result.
Build the operating statement first
Start with supportable long-term rent and other recurring income, apply a vacancy allowance, then subtract property tax, strata costs, insurance, maintenance, owner-paid utilities, management, and other recurring expenses. The result is net operating income before financing and tax.
Add financing without rewriting the property
Mortgage payments change cash flow and debt coverage but do not change the property's pre-financing NOI. Compare scenarios with the same operating assumptions before deciding whether leverage improves or weakens household resilience.
Keep capital and tax questions visible
Large replacements, special levies, acquisition costs, income-tax treatment, capital cost allowance, ownership structure, and disposition need separate analysis. The calculator is a pre-tax scenario, not a return, appraisal, or investment recommendation.
Common questions, answered directly
What should a BC rental property calculator include?
At minimum: supportable rent, vacancy, recurring operating expenses, NOI, financing, cash invested, debt service, cash flow, and explicit allowances for irregular capital work.
Is mortgage principal an operating expense?
No. Keep the mortgage below the NOI line so the property's operating performance remains distinct from the buyer's financing structure.
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