Tenant Turnover Cost Calculator

On 1,200 of monthly rent with four vacant weeks, a 600 agent fee and 400 of refresh work, the total turnover cost is 2,107.78, which the calculator also expresses as 1.8 months of rent. A single turnover is commonly cited as costing roughly one to two months’ rent, and that is the framing the tool reports directly rather than leaving to be worked out.

The reason retention and pricing are linked is arithmetic: a 2% rent increase on 1,200 is worth 288 across a year and a 3% increase 432, while one turnover on those figures costs 2,107.78. The concession that keeps a tenant can be several times larger than the rent rise that loses one and still come out ahead.

Quick example

With monthly rent of 1,200 and four vacant weeks, plus agent fees of 600 and refresh cost of 400, the result is 2,107.78. The breakdown splits that into 1,107.78 of lost rent, 600 of fees and 400 of refresh, alongside the equivalent months figure of 1.8.

Which inputs matter most

Four inputs, and they do not carry equal weight. Monthly Rent and Vacant Weeks multiply together into the lost-rent component, so they compound: at 1,200 a month the weekly rent is 276.94, and each additional vacant week adds exactly that. Going from four vacant weeks to six lifts the total from 2,107.78 to 2,661.67; going to eight lifts it to 3,215.56, or 2.7 months of rent.

Agent Fees and Refresh Cost are entered as amounts and pass straight through without scaling, so they set a floor: even with zero vacant weeks the defaults still cost 1,000, which is 0.8 months of rent before the property has stood empty for a single day.

What's happening under the hood

Lost rent is monthly rent divided by 4.333, the average number of weeks in a month, multiplied by the number of vacant weeks. Agent fees and refresh cost are added as entered. The total is those three components summed, and the equivalent months figure is that total divided by the monthly rent. The 4.333 divisor is the conversion that makes a weekly vacancy figure comparable with a monthly rent figure, and it is fixed rather than an input.

Where this fits in planning

This is a what-if tool rather than a forecast. It helps to test ideas: what happens to the result as the monthly rent or the vacant weeks changes. Running several sets of figures shows how sensitive the result is to each input, where a single set does not. Vacancy duration in particular is the input least under a landlord’s control and most dependent on local market conditions, which is why running a pessimistic figure alongside an optimistic one is more informative than either alone.

Worked example with realistic figures

Suppose a property generates 1,500 per month in rent. A tenant gives notice and moves out. The property sits empty for six weeks while the agent screens applicants and references are checked. Agent fees total 750. Carpet cleaning, minor touch-ups and repainting common areas cost 550. The calculator shows lost rent of 1,500 divided by 4.333, times six weeks, or 2,077.08, plus 750 in fees and 550 in refresh, for a total of 3,377.08. That is 2.3 months of gross rental income absorbed by one turnover event, and it is a normal rather than a disastrous scenario.

Common scenarios where this matters

• Testing the impact of a longer vacancy period on the annual figures for a property
• Comparing the cost of turnover against a rent concession that keeps an existing tenant
• Budgeting for cyclical tenant changes across several properties in a year
• Weighing whether spending on property condition shortens vacancy enough to pay for itself
• Seeing what negotiating an agent fee is actually worth against the other components

What the result shows

The calculator estimates the combined financial loss from lost rental income during the vacant period, plus the cash outflows for agent commission and property refresh, and reports the total both in currency and as a multiple of monthly rent. It illustrates how three separate components accumulate into a single figure that is easy to underestimate when each is considered on its own.

What the result does not show

The calculator does not account for inflation, regional market conditions, tenant quality variation, or the longer-term effects of extended vacancies on property condition. It does not model repeated turnovers across multiple years, nor maintenance that may be deferred or accelerated around a change of tenant. It assumes a linear rent model and makes no adjustment for seasonal demand patterns or economic cycles, both of which affect vacancy duration and the size of the applicant pool. Rent levels themselves move over time, which is worth checking against published series tracking rents alongside house prices for a specific market rather than assumed from a single year, just as property values move independently of the rent they produce.

For illustration only

This calculator supports educational exploration of how turnover costs accumulate. The figures it produces are estimates based on the inputs provided, useful for comparing scenarios and understanding relative impact rather than as exact predictions of actual financial outcomes.