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California Vacancy Loss Calculator

Vacancy is one of the biggest drags on rental property returns. This calculator shows the true cost of empty units in California — pre-filled with California average rents ($2,619/mo) and vacancy rate (4.8%).

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Property Income(California defaults)

Vacancy Assumptions(California defaults)

Operating Expenses

California Market Context

Avg Cap Rate

4.2%

Median Price

$833K

Property Tax

0.69%

Vacancy Rate

4.8%

Local Factors

  • -Prop 13 caps property tax increases at 2% per year, benefiting long-term holders
  • -Strict rent control laws in major cities (LA, SF, Oakland) limit rent increases
  • -Wildfire risk is driving insurance costs up dramatically; some areas are becoming uninsurable

Total Vacancy Cost

$7,534

$628/mo lost

Healthy
Gross Potential Income$125,712
Lost Rent (Vacancy)−$6,034
Turnover Costs−$1,500
Effective Gross Income$119,678
NOI (with vacancy)$76,178
NOI (0% vacancy)$83,712
Vacant Unit-Months/yr2.3
Vacancy Impact on NOI9.0%
Vacancy Cost$7,534
Net Income (after vacancy)$76,178
Vacancy Loss$6,034
Turnover Costs$1,500
Operating Expenses$42,000

What does this mean?

A 3–7% vacancy rate is the sweet spot for most rental markets. You're maintaining strong occupancy while likely pricing rents at market rate. Most lenders underwrite in this range.

Understanding Vacancy Loss

Vacancy loss is the income you don't collect when units sit empty between tenants. It's the gap between what a property could earn at full occupancy (Gross Potential Rent) and what it actually collects.

Vacancy Loss = Gross Potential Rent x Vacancy Rate

What vacancy rate should you use? Most lenders underwrite 5-8% for stabilized multifamily. California averages around 4.8%. Your actual rate depends on local market conditions, property condition, and management quality.

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