About the Vacancy Rate Impact Calculator
Advertised rental yields are usually based on 52 weeks of occupancy — but between tenants moving out, finding new ones, and any maintenance period, most investment properties sit vacant for at least a few weeks a year. This calculator shows what that vacancy actually costs in lost rent and net income.
How it works
Potential annual rent = weekly rent × 52. Lost rent = weekly rent × weeks vacant. Actual annual income = potential rent minus lost rent. Net income subtracts your annual property expenses (council rates, insurance, property management, maintenance) from that actual income.
Assumptions and behaviour
- Assumes the same weekly rent for the whole year — real rent may increase at a lease renewal.
- Expenses are a flat annual figure you enter — include property management fees if you use an agent.
- Doesn't include the mortgage repayment itself — this shows rental income and expenses, not full cash flow.
Limitations
- Doesn't calculate mortgage repayments or interest — pair this with the Property Cash Flow Calculator for the full picture.
- Real vacancy periods vary a lot by suburb, property type and season — check current vacancy rate data for your area rather than assuming a fixed number of weeks.
Privacy
The calculation runs entirely in your browser. Nothing is uploaded or stored.
Get FreeMyTask as an app