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Vacancy Loss Calculator

Estimate vacancy loss and effective rent from a vacancy percentage.

Parcel Platform
Mar 4, 2026
Vacancy Loss Calculator
Rent $2,500/mo • 5% vacancy
Vacancy Loss (monthly)
$125
Vacancy Loss (annual)
$1,500
Effective Income (monthly)
$2,375

Vacancy is normal. Use a conservative vacancy % so your underwriting has margin when units turn.

How this calculator works

Vacancy is one of the simplest ways a rental underperforms on paper. This calculator estimates vacancy loss and your effective rent after vacancy.

What it includes
  • Vacancy loss (monthly + annual)
  • Effective rent after vacancy
  • Quick screening context
How to use it
  1. Enter your expected monthly rent.
  2. Choose a vacancy % (many investors use 5–8% as a starting point).
  3. Use effective rent for NOI, DSCR, and cash flow calculations.

FAQ

What vacancy % should I use?
A common starting point is 5–8%. Higher-turnover areas or student markets may warrant more. If you self-manage or have strong demand, you may use less—but keep it conservative for screening.
Is vacancy the same as bad debt?
Not exactly. Vacancy is downtime between tenants; bad debt is non-payment. Many investors include both in a conservative vacancy/credit loss assumption.
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