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Vacancy cost calculator
Compare rent, vacant days, and cash costs over the same 365 days. Start with your own assumptions below.
Compare your options
Monthly rent in USD. Vacancy is your assumption: 0–365 whole days. Starting values are an illustrative example.
Rent after vacancy and entered cash costs
$2,233.97
more in Scenario B, using your entered rent, vacancy, and cash costs.
Scenario A · 365 days
$48,821.92
Scenario B · 365 days
$51,055.89
Entered assumptions, not rent or lease-up predictions. Ongoing property expenses are excluded.
Concessions & one-time costs
The example starts with $0 costs. Enter each amount once in this period, including 0 when none applies.
All amounts are USD. Amounts up to $1,000,000.00 are supported.
See the full calculation
Both options start on the same day the unit becomes vacant.
| Calculation | Scenario A | Scenario B |
|---|---|---|
| Monthly rent assumption | $4,500.00 | $4,350.00 |
| Vacancy days assumption | 35 days | 8 days |
| Occupied days in this period | 330 days | 357 days |
| Daily vacancy cost | $147.95 | $143.01 |
| Rent at full occupancy · 12 months | $54,000.00 | $52,200.00 |
| Less vacancy | -$5,178.08 | -$1,144.11 |
| Rent earned before cash costs | $48,821.92 | $51,055.89 |
| Less cash concessions | $0.00 | $0.00 |
| Less one-time leasing costs | $0.00 | $0.00 |
| Less one-time turn costs | $0.00 | $0.00 |
| Rent after vacancy and entered cash costs | $48,821.92 | $51,055.89 |
How this comparison works
Daily rent = monthly rent × 12 ÷ 365. Rent earned = 12 months of rent minus the rent lost during your vacancy days. We then subtract your cash concessions, leasing costs, and turn costs.
This uses one 365-day period, even in a leap year, with constant rent and full collection after vacancy. Daily amounts are displayed rounded; vacancy is calculated from the unrounded daily rate and rounded once to cents. Enter total vacancy within those 365 days. Costs above earned rent can produce a negative result.
Mortgage payments, property taxes, insurance, ongoing maintenance, utilities, management fees, income taxes, and changes in rent are excluded. This is not net operating income or a full investment return. Enter a rent credit as a cash concession; do not also count those rent-free days as vacancy.
Looking for a rent estimate?
A property-specific RWM rent estimate is currently unavailable. It needs sufficient rental evidence and validated accuracy. This calculator compares rents you enter; it does not estimate market rent or predict how quickly a unit will lease.