Vacancy Rate Calculator

Vacancy is the silent leak in every rental portfolio. A building can look fully occupied on paper yet bleed cash through delinquent tenants, slow turnovers and make-ready gaps. The vacancy rate is the headline number, but the dollars behind it — lost rent, credit loss and turnover cost — are what actually move net income.

Vacancy Rate Calculator turns your unit counts and rent into a vacancy rate, occupancy rate, lost annual income, credit loss and turnover cost, then compares your vacancy to a market benchmark and shows effective gross income. Change any input and the whole picture updates live.

Underneath the inputs is the context that makes the rate actionable — vacancy versus credit loss, why turnover cost matters, what a market benchmark tells you, and how this flows into bigger analysis. Everything runs in your browser; nothing is uploaded.

• Rate and occupancy: Vacancy rate, occupancy rate and vacant-unit count from total and occupied units.
• Lost income: Scheduled income, vacancy loss and credit loss in both percent and dollars.
• Turnover cost: Model make-ready cost times annual turnovers for a true recurring drag.
• Market compare: Benchmark your vacancy against the local natural rate and see over/under performance.
• Effective gross income: Scheduled rent minus vacancy and credit loss, ready for NOI analysis.
• Live updates: Edit any field and every figure recomputes instantly.
• Export: CSV, JSON or plain text of the full analysis.

1. Enter the portfolio. Total units, occupied units and monthly rent per unit.
2. Add credit loss. The delinquency rate on occupied units as a percent of rent.
3. Model turnover. Expected turnovers per year and the make-ready cost per turnover.
4. Set the benchmark. The market or natural vacancy rate for comparable rentals.
5. Read the results. Vacancy rate, lost income, turnover cost, effective gross income and market comparison appear live.
6. Export. CSV, JSON or plain text for your rent roll file.

Example 1 — Snapshot rate. 2 vacant of 20 units at $1,500 rent: 10% vacancy, about $36,000 annual lost rent before credit loss.

Example 2 — Credit loss. Add 2% delinquency on occupied units and another $7,000 of lost income appears, lifting the total vacancy factor to 12%.

Example 3 — Turnover drag. 5 turnovers a year at $1,200 make-ready adds $6,000 of cost the vacancy rate alone never shows.

Example 4 — Market beat. Your 10% versus a 5% market rate flags underperformance — time to review pricing, marketing or condition.

Example 5 — Effective income. Scheduled $360k minus vacancy and credit loss yields the effective gross income used in NOI.

• See the real leak: Vacancy, credit loss and turnover in one number set.
• Benchmark honestly: Compare to market so you know if you are winning or losing.
• Feed bigger models: Effective gross income drops straight into NOI and cash-on-cash.
• Catch turnover cost: The recurring make-ready drag is explicit, not hidden.
• Export the analysis: CSV, JSON or plain text in one click.
• Free and private: No account, no watermark, nothing uploaded.