Three rules of thumb, one screen.
The 1% rule (rent ≥ 1% of price), 2% rule (rent ≥ 2% of price), and 50% rule (operating expenses ≈ 50% of rent) are the classic fast-screening heuristics for income properties. Useful as a sanity check before deeper analysis.
This number is one of seventy.
Cap rate is a start. The full Foncier analyzer adds DSCR, IRR, ten-year cashflow projections, scenarios, side-by-side compare, and live community rent comps — for free, on your first three deals.
1% rule: monthly rent ÷ purchase price ≥ 1%. 2% rule: ≥ 2% (much rarer, mostly US Sun Belt). 50% rule: assume operating expenses (excluding mortgage) consume ~50% of gross rent — a conservative shorthand for OpEx + vacancy.
Rules of thumb on real properties.
$320,000 duplex with $2,400/mo total rent. Ratio 0.75% — fails 1% rule (target $3,200). The 50% rule estimates $14,400 NOI annually.
$725,000 triplex with $3,500/mo. Ratio 0.48% — well under 1%. Modern Quebec urban deals rarely hit the 1% rule; that's why expense ratios + cap rates matter more than thumb rules.
About investor rules of thumb.
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