Vacancy cost calculator

See what your empty units cost, per day and in total. Enter the rent and how long units sit empty, then add utilities and turnover costs if you track them.

Your numbers

Filled in with the worked example below. Replace any value with your own. Nothing you enter leaves your browser.

Costs you pay only because the unit is empty, such as utilities a tenant would normally cover.
One-time costs between tenants: cleaning, paint, repairs, listing or leasing fees.
Shows what you would keep by filling units faster.

Total vacancy cost

$7,392.33

Lost rent
$5,326.03
Costs while empty
$266.30
Turnover costs
$1,800.00
Cost per unit, per empty day
$62.14
Cost per day, all vacant units
$186.41

Leasing each unit 10 days sooner would save $1,864.11.

How the vacancy cost calculator works

The calculator takes five numbers: how many units are vacant, the monthly rent for each one, how many days each unit sits empty, what you pay each month only because a unit is empty, and your one-time turnover cost per unit. It turns the monthly amounts into daily amounts, multiplies them by the days vacant, and adds the turnover cost.

  1. Daily rent = monthly rent x 12 / 365
  2. Lost rent = daily rent x days vacant x vacant units
  3. Costs while empty = monthly costs while empty x 12 / 365 x days vacant x vacant units
  4. Turnover costs = turnover cost per unit x vacant units
  5. Total vacancy cost = lost rent + costs while empty + turnover costs

Multiplying by 12 and dividing by 365 gives one daily rate for the whole year. Dividing the monthly rent by 30 instead treats the year as 360 days and overstates the daily figure slightly. Figures are rounded to the cent only at the end.

If you enter the number of days sooner you could lease each unit, the calculator multiplies the cost per unit per empty day by those days and by the number of vacant units. That is the amount a faster lease-up would save.

What the calculator leaves out

Property tax, insurance and mortgage payments are not included. You pay them whether or not the unit is rented, so a vacancy does not change them. Add a cost to the monthly field only if you pay it because the unit is empty.

Worked example

Say you have 3 vacant units that rent for $1,800 a month, and each one sits empty for 30 days. While a unit is empty you pay $90 a month for utilities a tenant would normally cover. Between tenants you spend $600 per unit on cleaning and paint.

StepCalculationResult
Daily rent$1,800 x 12 / 365$59.18
Lost rent$1,800 x 12 / 365 x 30 days x 3 units$5,326.03
Costs while empty$90 x 12 / 365 x 30 days x 3 units$266.30
Turnover costs$600 x 3 units$1,800.00
Total vacancy cost$5,326.03 + $266.30 + $1,800.00$7,392.33
Cost per day, all vacant units($1,800 + $90) x 12 / 365 x 3 units$186.41
Saved by leasing 10 days sooner($1,800 + $90) x 12 / 365 x 10 days x 3 units$1,864.11

In this example, every day the three units stay empty costs $186.41. Filling each one 10 days sooner keeps $1,864.11.

Vacancy cost questions

What is vacancy cost?

Vacancy cost is the money a rental unit loses while it sits empty. It includes the rent you do not collect, costs you pay only because the unit is empty, such as utilities, and the one-time cost of getting the unit ready for the next tenant.

How do you calculate the cost of a vacant unit?

Multiply the monthly rent by 12 and divide by 365 to get the daily rent, then multiply by the number of days the unit sits empty. Add any costs you pay only while it is empty, worked out the same way, plus your turnover cost. A unit renting for $1,800 that sits empty for 30 days loses $1,775.34 in rent alone.

Why divide by 365 instead of 30?

Monthly rent times 12, divided by 365, gives the same daily rate all year. Dividing by 30 treats the year as 360 days, so it slightly overstates what each empty day costs.

Should property tax and insurance count as vacancy costs?

No. Property tax, insurance and mortgage payments are due whether or not the unit is rented, so a vacancy does not change them. Count only costs that exist because the unit is empty, such as utilities a tenant would normally pay.

How do you lower vacancy cost?

Shorten the time each unit sits empty, because every day saved keeps a full day of rent. Start marketing before the current tenant moves out, reply to every inquiry quickly, and let renters book a tour without back-and-forth.

More free tools

Lease units sooner

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