How to Calculate Average Vacancy Rate
Understanding your property's vacancy rate is crucial for real estate investors, property managers, and landlords. It serves as a key performance indicator (KPI) for the financial health of your rental portfolio. A high vacancy rate signals potential issues with pricing, property condition, or marketing, while a low rate suggests high demand or potentially under-priced rents.
The Vacancy Rate Formula
The most common method to calculate the physical vacancy rate is by comparing the number of unoccupied units to the total number of units available for rent. This gives you a snapshot of your portfolio's performance.
Example Calculation:
If you own an apartment complex with 50 units and 3 of them are currently empty:
- Step 1: Divide 3 by 50 = 0.06
- Step 2: Multiply by 100 = 6%
In this scenario, your average vacancy rate is 6%.
Physical vs. Economic Vacancy
While the calculator above determines physical vacancy (empty units), experienced investors also track economic vacancy. Economic vacancy accounts for units that are physically occupied but not generating income (e.g., non-paying tenants, model units, or units down for repairs).
To calculate economic vacancy, you compare the potential gross income against the actual rent lost:
Why Calculating Average Vacancy Matters
- Cash Flow Analysis: Vacancies directly reduce your Net Operating Income (NOI). Knowing your rate helps in forecasting cash flow accurately.
- Benchmarking: Comparing your rate to the local market average helps determine if your property is overperforming or underperforming.
- Lender Requirements: Banks often look for a vacancy rate of 5-10% when underwriting commercial real estate loans.
What is a "Good" Vacancy Rate?
While every market differs, a nationwide average for residential rental properties typically hovers between 5% and 8%. A rate of 0% might seem ideal, but it could indicate that your rents are too low and you are leaving money on the table. Conversely, a rate above 10% usually requires immediate attention to marketing strategies or property maintenance.
How to Calculate an Annual Average
If you need to calculate the average vacancy rate over the course of a year (rather than a snapshot in time), you can calculate the vacancy rate for each month, sum them up, and divide by 12. Alternatively, you can track the total number of "days vacant" across all units and divide by the total "rentable days" in the year.