Vacancy Rate Calculator
Vacancy rate estimates how much rental time or rent is lost when a property is not occupied or not collecting rent. It is a key rental assumption because vacancy reduces effective income before expenses and debt service.
Estimates are based on your inputs and assumptions. DealSharp does not provide financial, investment, legal, tax, or lending advice.
Run the number, then pressure-test the assumptions.
Vacancy rate estimates how much rental time or rent is lost when a property is not occupied or not collecting rent. It is a key rental assumption because vacancy reduces effective income before expenses and debt service.
Use this page to understand the metric directionally, then compare it against financing, reserves, repair risk, cash flow, and your own constraints.
Use this working calculator as a starting point, then run the full deal in DealSharp when you need more inputs, side-by-side scenarios, and risk context.
Vacancy rate = vacant days / total available rental days
If a rental is vacant for 30 days in a 365-day year, vacancy rate is about 8.2%.
Assumptions
Vacancy rate
Estimated outputs
Scenario snapshot
Scenario estimate based on the inputs shown here. Use the full DealSharp app to compare financing, repairs, vacancy, cash flow, and risk assumptions before deciding.
How to read this number
The useful move is not treating one number as a final answer. Use it to decide which assumptions deserve more review, then compare the result against cash flow, financing, reserves, repair risk, and your own constraints.
Inputs required
- Metric inputs shown in the formula or calculator.
- Income, expense, debt, value, and cash assumptions where relevant.
- Investor-provided numbers that should be checked against source documents.
Outputs explained
- Scenario estimate based on the inputs.
- Plain-English context for comparing the metric.
- Limitations and assumptions to review before relying on the result.
Assumptions to review
- Inputs are estimates supplied by the user.
- Market rent, lender terms, taxes, insurance, repairs, and legal details can change the result.
- DealSharp does not provide financial, investment, legal, lending, tax, or accounting advice.
What this tells you
- Higher vacancy reduces effective gross income.
- Vacancy can turn a thin cash-flow scenario negative.
- Investors often stress-test vacancy to see how much cushion a rental has.
What this does not tell you
- Vacancy estimates do not prove future occupancy.
- They do not replace local rental demand research or property management review.
Common mistakes
- Assuming 0% vacancy.
- Using market vacancy without considering property condition or tenant turnover.
- Forgetting lease-up time after rehab.
FAQ
Is vacancy only physical vacancy?
Not always. Some investors also model credit loss or unpaid rent as part of income loss.
Where should vacancy go in analysis?
Vacancy usually reduces gross rent to effective rent before operating expenses are subtracted.
Run the full deal before deciding
This page helps with one metric or workflow. DealSharp is built for full real estate deal analysis: assumptions, financing, cash flow, repair scenarios, DSCR, cap rate, and risk flags based on your inputs.
Open DealSharpDisclaimer
DealSharp provides calculation and scenario-modeling tools for informational purposes only. Outputs are estimates based on your inputs and assumptions. DealSharp does not provide financial, investment, legal, lending, tax, or accounting advice. Verify important decisions with qualified professionals.