Vacancy Rate Calculator
Compute rental vacancy rate (%), occupancy rate, monthly + annual lost income, and industry benchmark verdict. Standard metric for landlords, property managers, and REITs.
Vacancy Rate Calculator
How to use the Vacancy Rate Calculator
Count your total rentable units
This is every unit you OWN OR MANAGE that's intended for rental, including units currently vacant. For a single-family rental, that's 1. For a 24-unit apartment building, that's 24. For a portfolio, sum across all properties. Don't include: owner-occupied units, units held off-market for renovation longer than 60 days (those are "out of service," tracked separately), or non-rental spaces (laundry rooms, offices).
Count units vacant right now
Units that are listed for rent but have no signed lease + no current tenant. Include: units in turnover between tenants (cleaning, repair), units actively being marketed, units where the previous lease ended but new tenant hasn't moved in. Exclude: units with a signed lease that hasn't started yet (those are leased, not vacant). Use the same snapshot date — point-in-time vacancy is more meaningful than averages for tactical decisions.
Enter average monthly rent
The market rent per unit, NOT the discount rent you might offer to fill quickly. This drives the "lost income" calculation. For mixed properties (studios + 2BR), use a weighted average or run the calculation per unit type. The dollar figure is what makes vacancy actionable — "12% vacancy" is abstract; "$18,000/year of lost rent" is a board-room conversation.
Read the verdict + take action
The benchmark verdict (Excellent / Healthy / Elevated / Concerning / Critical) tells you where you sit relative to industry norms. If Excellent or Healthy: maintain. If Elevated: review pricing + listing photos. If Concerning: full audit — rent comp analysis, condition walk-through, marketing refresh. If Critical: structural decision needed — reposition, refinance, or sell. Track monthly; vacancy trends matter more than any single snapshot.
Vacancy rate — the single most actionable rental property KPI
Vacancy rate is the simplest, most actionable metric in real estate operations: the percentage of your rentable units that are empty right now. The math is trivial — vacant units divided by total units, multiplied by 100 — but the management discipline of measuring it regularly and benchmarking against industry norms is what separates well-run portfolios from accidental landlording. The US Census Bureau tracks rental vacancy at ~6% national average across decades, and the ranges below + above that anchor the verdict logic in this calculator. A 6% vacancy rate roughly equals one month per year per unit of natural turnover — which is what well-managed properties should expect. Anything materially higher signals a problem; anything materially lower signals you might be under-pricing.
Why vacancy rate is the leading indicator for everything else
Cap rate, gross rental yield, and cash-on-cash all assume FULL occupancy — they're "potential" numbers. Vacancy rate is what converts potential to actual. A property with a stated 7% cap rate but 18% vacancy is really earning closer to 5.7% cap on real income — a 1.3 percentage point haircut that completely changes the investment thesis. The discipline: always model investments with realistic vacancy assumptions (5-8% for stabilised; 12-20% for newly-built lease-up; up to 30% for problem buildings). Models that assume 100% occupancy are marketing pitches, not investment analyses.
US national rental vacancy averages ~6%, equivalent to one month per unit per year of natural turnover. Above 8% and you're fighting market headwinds; below 4% and you're probably under-pricing.
The vacancy ladder — what to do when vacancy rises
When vacancy climbs above your normal range, work the ladder in order: (1) Price audit — pull comparable rentals on Zillow/Redfin (US) or PropertyGuru/99.co (ASEAN); if you're 5%+ above market, that's the first lever. (2) Photo + listing refresh — 90% of inquiries start with photos; bad photos = no calls. Spend $200-500 on a professional shoot. (3) Condition + curb appeal — fresh paint, new fixtures, deep clean. Often a 1-2% rent increase pays for itself if it cuts vacancy by even 1 percentage point. (4) Concessions over rent cuts — one month free is psychologically easier on incumbent tenants than a permanent rent decrease, and effectively gives an 8% discount only in year one. (5) Tenant quality trade-off — at the bottom, you can fill a unit by accepting weaker credit, but the eviction risk costs more than the vacancy you "saved."
The ASEAN vacancy reality — wildly different by market
Vacancy rates vary dramatically across ASEAN markets and reveal each market's structural dynamics. Singapore HDB ~3% — extreme demand, regulated supply, near-perpetual undersupply for citizen housing. Singapore private condo 6-8% — close to global "healthy" range; ABSD policies dampened speculative oversupply. Kuala Lumpur condos 15-25% — textbook oversupply from 2018-2024 luxury developments; large segments of newly-built Mont Kiara and KL CBD towers sit empty. Bangkok central 8-15% — improving but still soft from pandemic Airbnb collapse. Manila CBD 10-15% — POGO exodus left big absorption gaps. Jakarta middle-class 5-8% — healthy fundamentals. HCMC 12-18% — recent oversupply, especially District 2. For REITs: CapitaLand Integrated Commercial Trust and similar Singapore commercial REITs target sub-5% vacancy on shopping centres; residential REITs (Lendlease, Frasers Logistics) typically run 5-7% on stabilised assets. Use these benchmarks as the realistic floor; if your property sits in a high-vacancy market, your verdict should be calibrated against the LOCAL norm, not the US 6%.
10 Things to Know About Vacancy Rates
US national rental vacancy ~6% per Census Bureau, holding stable across decades. That's the anchor for "healthy."
A 1% reduction in vacancy on a 100-unit portfolio at $1,500/mo rent recovers $18,000/year. Vacancy is the highest-leverage operational metric.
Singapore HDB vacancy ~3% — among the lowest globally. Regulated supply + citizen demand keeps virtually every flat occupied.
Kuala Lumpur condo vacancy 15–25% — textbook oversupply since 2018. Large segments of luxury towers sit empty long-term.
Vacancy rate is the inverse of occupancy rate — same metric, two framings. Operators usually quote occupancy ("we're at 94%"); analysts usually quote vacancy ("running 6%").
Physical vacancy ≠ economic vacancy. Physical = empty units; economic = concessions + late payments + bad debt as % of GPR. Track both for true picture.
Cap rate models that assume 100% occupancy are marketing pitches. Real underwriting uses 5–8% vacancy for stabilised, 12%+ for lease-up.
The vacancy ladder: price audit → photo refresh → condition fix → concessions → rent cut. Cut in this order; rent reductions are last because they're sticky.
One month free = 8.3% effective discount in year one, but 0% from year two onward. Concessions are tactically smarter than permanent rent cuts.
Vacancy under 3% often means you're under-pricing — every signed lease at first showing is a missed price-discovery opportunity. Test a 3–5% rent bump next renewal.
Frequently Asked Questions
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The US national average is ~6%, and that's the anchor for "healthy." Anything 4–8% is generally fine. Under 4%, you might be under-pricing. Over 8%, investigate. Different property types have different norms: single-family rentals usually run lower (3–6%) because turnover is annual not constant; multifamily/apartments run higher (5–9%) because there are always units in turnover; commercial can be 10–15% normal during weak cycles. Always calibrate against the LOCAL market, not the national number.
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This calculator computes physical vacancy — units actually empty. Economic vacancy adds three other types of lost income: (1) concessions (free months given to fill units), (2) bad debt (rent that's billed but never collected), (3) units occupied at below-market "loss-leader" rents. A property at 95% physical occupancy with 3% concessions + 2% bad debt is really at 90% economic occupancy. Sophisticated operators track both; the gap between them reveals how aggressively the asset is being pushed to "look full" at the cost of real income.
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Short-term rentals use occupancy rate (% of nights booked) rather than vacancy. The math is different: a STR running at 70% occupancy is "good" because every night has cleaning + setup; an LTR running at 70% would be catastrophic. STR benchmarks: 55–65% is healthy in most markets; 70%+ is excellent. RevPAR (Revenue Per Available Room) is the more standard STR metric — combines occupancy + average daily rate. This calculator is for long-term rentals; for STR analysis, AirDNA + Mashvisor provide market-specific benchmarks.
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Usually yes — but use concessions before permanent rent cuts. Math: one month vacant at $2,000/mo = $2,000 lost. A 5% rent cut on 12 months = $1,200 lost over 12 months, plus lower future renewals. Better tactic: offer one month free upfront = $2,000 effective discount but rent stays at $2,000/mo for renewal calculations. Tenant perceives "free month"; you keep your roll rent. Use rent cuts only when concessions don't work AND market rent has genuinely shifted. Cutting rent permanently is sticky — you can't easily raise back next year.
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Structural oversupply. From 2014-2020, KL approved unprecedented new condo supply in Mont Kiara, KLCC, Bukit Bintang, and emerging luxury enclaves. Much was speculative — built for capital appreciation, not rental income, often by foreign-funded developers. The 2020-2024 reality: too many units, not enough professional renters, ringgit weakness limiting expat demand. National Property Information Centre (NAPIC) data shows ~30% of high-end KL condos unsold + ~15-25% of leased buildings sitting vacant. The luxury segment is worst; mid-tier (RM 400-600K) does much better. Resolution: years of absorption, not months.
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REITs report occupancy in quarterly + annual disclosures. Singapore commercial REITs (CICT, Frasers Centrepoint Trust) typically target 95–99% — well below 5% vacancy is the norm for stabilised malls. Industrial REITs (Mapletree Logistics, ESR-LOGOS) often report 90–96%. Residential REITs (Lendlease Global REIT residential portion) usually 92–96%. When occupancy slides, the REIT's dividend gets pressured — leasing teams + cap-ex spend rise to defend the metric. For investors, watch the trend (q-over-q) more than the absolute level — a falling 96% is worse news than a stable 92%.
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Probably yes. Zero vacancy for 12+ months means at least one of: (1) you're under market, (2) location is unusually strong, (3) you have a star tenant who'd pay more elsewhere. Test it: at next renewal, increase rent by 3–5%. If they renew, you got a free upgrade. If they leave, you'll likely re-let at the new rate within a month. The financial cost of "testing" is usually less than the cost of a year of under-pricing. Most landlords leave 5–10% of potential rent on the table by never testing. Run rent comps annually; raise selectively.
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Cap rate uses Net Operating Income (NOI). NOI = (Gross Potential Rent × occupancy) − operating expenses. So a property advertised at "7% cap rate" with 100% occupancy assumed is really 7% × (1 − vacancy rate) cap rate after vacancy. Example: $1M property, $100K gross potential rent, 7% advertised cap. If true vacancy is 10%, actual rent collected = $90K, less $30K opex = $60K NOI = 6% real cap. Always underwrite with realistic vacancy: 5-7% for stabilised quality properties; 10-15% for new lease-up; 12-20% for problem buildings. Models without vacancy assumption are sales material.
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No. All calculations run in your browser via JavaScript. Open DevTools → Network and confirm zero outbound requests with your data. Total units, vacant units, and rent figures all stay on your device. Safe for confidential portfolio reviews and board-prep work.
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US: Census Bureau Housing Vacancy Survey (quarterly, free); REIS + CoStar (paid, gold standard); Zillow Research (free, basic). Singapore: URA's Realis system + JTC quarterly market reports for industrial. Malaysia: NAPIC + Knight Frank quarterly. Hong Kong: Rating and Valuation Department. ASEAN broadly: PropertyGuru DataSense, Cushman & Wakefield quarterly market reports, JLL and Knight Frank pan-Asia reports. For REIT-specific data, read the quarterly DPU release — every REIT discloses occupancy by sub-segment.
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