Vacancy Rate: What It Is and How to Budget for It

Vacancy is the silent killer of rental property returns. A property that looks like a cash cow on paper can bleed money if it sits empty for two months between tenants. Understanding vacancy rate — and budgeting for it correctly — is essential for accurate investment analysis.

What Is Vacancy Rate?

Vacancy rate is the percentage of time a rental property sits empty and generates no income. It accounts for both the time between tenants and any credit losses (tenants who don't pay).

Even the best properties in the hottest markets have some vacancy. Leases end, tenants move, and there's always a turnover period for cleaning, repairs, and re-listing. Pretending vacancy doesn't exist leads to overestimating your returns.

How to Calculate Vacancy Rate

Example: A property is vacant for 3 weeks between tenants once per year:

• Vacant days: 21
• Vacancy rate: 21 / 365 = 5.8%

For a portfolio or market:

Typical Vacancy Rates by Market

The national average residential vacancy rate has hovered around 5-7% in recent years. When in doubt, use 5% as a conservative baseline for residential single-family and small multifamily.

Why Vacancy Rate Matters for Your Analysis

Vacancy directly reduces your NOI and every metric that depends on it:

Impact on a $3,000/mo Rental

The difference between 5% and 10% vacancy is $1,800/year — that could be the difference between positive and negative cash flow.

The Hidden Costs of Vacancy

Lost rent is only part of the story. Vacancy also costs you:

• Turnover costs: Cleaning ($200-500), painting ($500-1,500), minor repairs ($200-1,000)
• Marketing costs: Listing fees, photography, advertising
• Utilities: You pay electric, water, and heat while the unit is empty
• Carrying costs: Mortgage, taxes, and insurance don't stop during vacancy
• Opportunity cost: Time spent showing the property and screening tenants

A realistic "all-in" turnover cost for a single-family rental is $1,500-3,000 per occurrence. Budget for one turnover per year or every other year depending on your lease terms.

How to Reduce Vacancy

1. Price competitively — an overpriced unit sitting empty for 2 months costs more than pricing it $100/mo lower
2. Maintain the property — tenants stay longer in well-maintained homes
3. Screen tenants well — quality tenants renew leases more often
4. Offer lease renewal incentives — a small rent discount for renewing saves turnover costs
5. Respond quickly to maintenance — tenant satisfaction drives retention
6. Start marketing before move-out — list the unit 30-60 days before the lease ends

How to Budget for Vacancy

When analyzing a property, use these guidelines:

• Conservative: 8% (about 1 month vacant per year)
• Moderate: 5% (about 2.5 weeks vacant per year)
• Aggressive: 3% (only for strong markets with high demand)

If you're new to investing or analyzing a property in an unfamiliar market, default to 5-8%. It's better to be surprised by more income than to budget for zero vacancy and get burned.

Learn how vacancy fits into the full analysis process in our rental property analysis guide.