Gross rental yield
Gross rental yield is simply your annual rental income divided by the property value, expressed as a percentage. It is quick to calculate and useful for comparing properties at a glance, but it does not reflect vacancy or any ownership costs.
Formula
Gross Yield = (Annual Rent ÷ Property Value) × 100
Worked example
You are considering a house in Western Sydney listed at $750,000. The comparable rent for the street is $550 per week.
Annual rent$550 × 52 weeks = $28,600
Gross yield$28,600 ÷ $750,000 × 100 = 3.81%
A gross yield of 3.81% is below the 4.5–5% threshold many investors target, but it says nothing about expenses. You need net yield to make a fair comparison.
Net rental yield
Net rental yield adjusts for vacancy and deducts all annual ownership costs before dividing by property value. This gives you a more accurate like-for-like comparison between different properties. Note that mortgage repayments and interest are not usually included — they relate to your financing structure, not the property itself — though you can include them if you want to see after-debt return.
You need four inputs: annual rent, property value, vacancy rate, and annual expenses. The vacancy rate is the percentage of time you expect the property to be untenanted (e.g. 2 weeks per year ÷ 52 weeks = 3.85%). Annual expenses typically include property management fees, maintenance, landlord insurance, council rates, and water rates.
Formula
Net Yield = ((Annual Rent × (1 − Vacancy Rate)) − Annual Expenses) ÷ Property Value × 100
Multiplying by (1 − Vacancy Rate) reduces your income by the proportion of the year the property is expected to sit empty.
Worked example (continuing from above)
Same $750,000 property at $550/week. You estimate the property will be vacant for roughly 1 week per year between tenancies, and your annual expenses break down as follows:
Property management (8.5% of rent)$2,431
Maintenance & repairs$2,500
Landlord insurance$1,400
Council rates$1,800
Water rates$900
Total annual expenses$9,031
Vacancy rate1 ÷ 52 = 1.92%
Effective income$28,600 × (1 − 0.0192) = $28,051
Income after expenses$28,051 − $9,031 = $19,020
Net yield$19,020 ÷ $750,000 × 100 = 2.54%
Net yield of 2.54% compared to gross yield of 3.81% — a gap of 1.27 percentage points, purely from expenses and vacancy. This is why comparing properties on gross yield alone can be misleading if one has significantly higher ownership costs.
Gross yield
Annual Rent ÷ Property Value × 100
✓ Fast to calculate
✓ Good for quick comparison
✗ Ignores all expenses
✗ Can be misleading between markets
Net yield
(Income after vacancy − Expenses) ÷ Property Value × 100
✓ Reflects real ownership cost
✓ Better for comparing unlike properties
✗ Requires expense estimates
✗ Varies by management and maintenance style