If you've ever had a rental sit between tenants, you know the feeling — refreshing your inbox hoping for an application, watching the calendar tick by, doing the mental math on what each empty day is really costing you. You're not imagining it. Vacancy is one of the biggest, most underestimated expenses in the rental business.
The trouble is, most owners think about vacancy in calendar terms — "it was empty for a month, no big deal" — instead of dollar terms. A 30-day gap on a $2,500 unit isn't just a missed payment; it's a real hit to your annual return. And when those gaps happen year after year, the damage stacks up faster than people expect.
That's where this calculator helps. Plug in your rent, how long the property usually sits between tenants, and how often you turn over — and we'll show you exactly what those empty days are costing you each year, so you can decide what filling it faster is actually worth.
