Investor rules · Screening

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.

Assumptions
Results
Rent-to-price ratio0.8%
1% rule (1% target $3,200)FAIL
2% rule (2% target $6,400)FAIL
Estimated opex (50% rule)$1,200/mo
Estimated NOI (50% rule)$14,400
Foncier the whole deal

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.

How this is calculated

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.

Worked examples

Rules of thumb on real properties.

Sherbrooke duplex
1%: PASS · 2%: FAIL

$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.

Price$320,000
Rent$2,400/mo
Ratio0.75%
NOI est.$14,400/yr
Plateau triplex
1%: FAIL · 2%: FAIL

$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.

Price$725,000
Rent$3,500/mo
Ratio0.48%
NOI est.$21,000/yr
Rule questions

About investor rules of thumb.

The 1% rule says monthly gross rent should be at least 1% of purchase price. A $300k property should rent for $3,000+/mo. It originated in US Midwest cash-flow markets in the 2000s. Almost no Canadian urban property meets it today.