Calculate vacancy loss on rental properties by applying vacancy rates of 3%, 5%, 8%, or 10% to potential gross income. Model scenarios for accurate underwriting.
Vacancy loss is the income you forgo when units sit empty between tenants. Even in strong rental markets, vacancy is inevitable — tenants move, leases end, and turnover takes time. Smart investors budget for vacancy loss to ensure their cash flow projections survive reality.
This calculator applies common vacancy rates (3%, 5%, 8%, 10%) to your potential gross income, showing the dollar impact of each scenario. It also lets you enter a custom vacancy rate to model your specific market conditions. The difference between a 3% vacancy assumption and a 10% assumption can swing cash flow by thousands of dollars annually.
Understanding vacancy loss is critical for accurate underwriting. Overly optimistic vacancy assumptions (0–2%) make deals look better than they are, while overly conservative assumptions (15–20%) might cause you to pass on profitable investments. Use historical market data and property-specific vacancy records to calibrate your expectations.
Homebuyers, investors, and real-estate professionals all benefit from precise vacancy loss figures when evaluating properties, negotiating deals, or planning long-term investment strategies. Save this calculator and revisit it whenever market conditions or your financial situation changes.
Every dollar of vacancy loss comes directly out of your cash flow. Budgeting accurately for vacancy prevents nasty surprises and ensures your investment projections are reliable. This calculator makes it easy to see the financial impact of different vacancy scenarios and choose the right assumption for your market. Instant recalculation lets you compare scenarios side by side, so every buying, selling, or investment decision is grounded in solid financial analysis.
Vacancy Loss = Potential Gross Income × Vacancy Rate Effective Gross Income = PGI − Vacancy Loss Vacant Months per Year = 12 × Vacancy Rate
Result: Vacancy Loss = $6,000/year
With $120,000 in potential gross income and a 5% vacancy rate, annual vacancy loss is $6,000, reducing effective rental income to $114,000. At $10,000/month in potential rent, 5% vacancy represents roughly 0.6 months of lost rent per unit per year — about 18 days of vacancy.
U.S. Census data shows national rental vacancy rates typically range from 5–8%, though they dropped below 6% during the tight housing markets of 2021–2023. Urban luxury apartments often have higher vacancy (7–10%) due to constant new supply, while affordable workforce housing in supply-constrained markets may run below 3%.
Smart investors model three vacancy scenarios: optimistic (market average), expected (market average + 1–2%), and pessimistic (market average + 5%). If the deal works under the pessimistic scenario, it's a resilient investment. If it only works under the optimistic scenario, the risk may be unacceptable.
Since NOI drives property valuation, vacancy directly impacts what a property is worth. A 5% reduction in occupancy on a $200,000 PGI property reduces NOI by $10,000. At a 7% cap rate, that's a $143,000 reduction in property value — illustrating why vacancy management is so critical to wealth preservation.
Start with your local market's average vacancy rate, available from census data or property management companies. For strong markets with population growth, 3–5% is common. For average markets, 5–8%. For softer markets with high supply, 8–12%. Always err on the side of conservatism.
No. Vacancy loss is the rent you forgo while a unit sits empty. Turnover cost includes that loss plus cleaning, repairs, marketing, and leasing expenses to prepare the unit and find a new tenant. Total turnover cost can be 2–3 months of rent per occurrence.
Maintain the property well, respond to tenants quickly, price rents competitively, and offer lease renewal incentives. Good property management dramatically reduces turnover. Starting the leasing process 60–90 days before a lease expires minimizes gap days between tenants.
Never. Even with long-term leases, eventual turnover is certain. A 0% vacancy assumption means any vacancy destroys your projected returns. Budget at least 3–5% even in the strongest markets to maintain realistic projections and build reserves.
Single-family vacancy is lumpy — when it's vacant, you lose 100% of income. Multifamily spreads vacancy across multiple units, smoothing the impact. A 10-unit building with one vacant unit is at 90% occupancy. This diversification is a key advantage of multifamily investing.
Economic vacancy includes physical vacancy (empty units) plus credit loss (occupied units not paying rent) plus concessions (free rent, move-in specials). It's a more comprehensive measure of income loss. Economic vacancy is typically 2–4% higher than physical vacancy.