Empty days are the quietest expense a rental has — no invoice, just rent that never arrives. Price your turnover frequency and days-to-re-lease into a real annual cost, or score how fast your unit would actually fill.
The real annual cost of vacancy — lost rent from empty days plus make-ready cost on every turnover — and what a 17-day re-lease would save against your current days-on-market.
Jim Miller, founder of PAM, built this model on PAM's real lease-up data across Milwaukee, Racine, Waukesha, and Southeastern Wisconsin — where a 17-day average days-on-market is the operating standard, not the exception.
It treats vacancy the way an operator does: not bad luck, but the sum of pricing, listing reach, showings, retention, and turn speed — levers you can actually pull to shrink the empty days.
Owners track the repair bill and the tax bill, then forget the biggest variable cost of all: the rent a vacant unit doesn't earn. Two levers drive it — how often a unit turns over, and how fast it re-leases.
A single 45-day vacancy on a $1,200 unit is roughly $1,800 gone — and it recurs every time the unit turns. Over a hold, slow re-leasing quietly outweighs most repair lines.
Beyond lost rent, each turn carries make-ready: paint, cleaning, repairs, and re-listing. The fuller cost of vacancy is lost rent plus getting the unit rent-ready again.
The cheapest vacancy is the one that never happens. A tenant who renews skips both the empty days and the make-ready bill — which is why renewal rate moves this number as much as speed.
Days-on-market is set by accurate pricing and listing reach, not luck. Mispriced or thinly-marketed units sit; correctly-priced, widely-listed units move.
Start with the Guided Assessment to score how fast your unit would fill, or jump to the Full Calculator to price your actual turnover and re-lease speed. Both update live.
Guided Assessment scores your lease-up quality from eight quick questions and flags what's slowing you down. Full Calculator turns your turnover frequency and days-to-re-lease into a dollar cost — and shows what a 17-day re-lease would save.
Mispricing is the number-one reason a unit sits. Days-on-market is pricing accuracy plus listing reach — not luck.
Reach drives speed. The more qualified eyes on the listing, the shorter the empty stretch between tenants.
Friction between an interested renter and a signed lease adds empty days even when demand is there.
Screening trades a little speed now for far fewer turnovers later — a bad placement turns over fast and re-vacates.
The cheapest vacancy is the one that never happens. Every renewal skips both the empty days and the make-ready bill.
Make-ready time is dead vacancy you control — every day the unit isn't rent-ready is a day it can't lease.
Marketing a unit before it's vacant overlaps the search with the current lease and shrinks the gap to near zero.
Vacancy is an operations problem. A dedicated leasing engine attacks every lever above at once.
Your approach vs. a typical investor vs. a PAM-managed deal, across 8 dimensions.
No green flags yet. Strengthen your answers to surface deal strengths.
Enter your numbers to surface risk signals.
How your lease-up quality stacks up against the market. Industry figures reflect independent research; PAM benchmarks reflect 450+ units under management and 17 years of operating history. “Your” values are process-correlated estimates from your answers above.
What this scores: how fast a unit re-leases and how rarely it goes empty — based on eight weighted dimensions of pricing, marketing reach, showings, retention, and turn speed, the same levers PAM's leasing engine controls.
Scoring model: each of the eight questions carries up to 10 points (80 max). Your raw score is normalized to 0–100 (raw ÷ 80 × 100). Re-lease confidence is modeled as 55% + score × 0.40, ranging from 55% (no process) to 95% (always leased); vacancy risk is its complement. Estimated exposure equals your vacancy risk multiplied by the cost of one bad operating year — re-lease, 1.5 months’ vacancy, make-ready, repairs, and bad debt — using Southeastern Wisconsin figures.
Data sources: U.S. Census Housing Vacancy Survey 2025 · RentCafe 2025 · Buildium / NARPM 2025 State of the Industry · AppFolio 2024 · Eviction Lab, Princeton University (2024) · Wisconsin Circuit Court Access (CCAP). PAM benchmarks reflect 450+ units under management and 17 years of operating history.
This tool provides general estimates for educational purposes only and is not investment advice. “Process estimate” figures are modeled correlations from your answers, not guarantees of any outcome. Vacancy outcomes depend on market conditions, pricing, and property condition. Performance Asset Management is an Equal Housing Opportunity provider.
Vacancy is the line PAM's leasing engine attacks directly — faster re-leasing and stickier tenants both shrink the empty days this calculator prices.
A 17-day average days-on-market, against a 30–60 day norm, cuts the lost-rent line on every single turnover.
An 88.76% renewal rate means most units never go vacant at all — eliminating both the empty days and the make-ready cost.
Syndication to 50+ platforms with ZIP-level pricing and pre-qualified showings is what produces the speed, not optimism.
The U.S. rental vacancy rate runs around 7%, though it varies widely by market. A well-run single rental often targets 4–6% — roughly two to three weeks of vacancy per year. A rate near zero isn't always good news: it can signal you're priced below market and leaving rent on the table.
Multiply gross potential rent (monthly rent × 12 × units) by your vacancy rate. To get the rate from operations, divide expected vacant days per year by 365. Vacant days come from how often a unit turns over (12 ÷ average tenancy in months) times how long it takes to re-lease each time.
For a true picture, yes. Lost rent is only half the cost of a vacancy. Each turnover also triggers make-ready spending — cleaning, paint, minor repairs, and re-listing — typically several hundred to a few thousand dollars. This tool reports both the lost rent and the turnover cost so you see the full number.
A lot, because the saving repeats on every turn. Cutting re-lease time from 45 days to 17 on a unit that turns every two years saves roughly a month of rent per turnover, indefinitely. The calculator shows your annual lost rent beside the PAM 17-day scenario so you can see the gap in dollars.
Yes. The Guided Assessment scores how fast your unit would re-lease from how it's priced, marketed, shown, and retained — no exact turnover history required. When you have your numbers, the Full Calculator prices the empty days precisely, and a free PAM rental analysis benchmarks them against live comps.
Two levers. First, speed: ZIP-level pricing, syndication to 50+ platforms, and pre-qualified showings hold the portfolio to a 17-day average days-on-market. Second, retention: an 88.76% renewal rate against a ~54% norm means most units simply never go vacant — avoiding both the lost rent and the make-ready cost.
Comparable rentals analyzed into a recommended rent range — emailed to you as a one-page PAM report.
OpenAnnualized return across the full hold — cash flow, appreciation, and loan paydown in one rate.
OpenCash-on-cash, cap rate, and first-year total return on the cash you actually put in.
OpenMonthly and annual cash flow after every expense and the mortgage, itemized.
OpenProject the wealth from holding and renting against selling and reinvesting.
OpenScore a deal on cap rate, GRM, DSCR, the 1% rule, and cash-on-cash at a glance.
OpenSkip the assumptions — get real, ZIP-level rent and a CapEx baseline for your actual property from PAM.
A free PAM rental analysis prices your unit against live ZIP-level comps and lays out a leasing plan — so empty days get shorter and the cost above gets smaller.