The Vacancy Loss Calculator is a free tool from Croskey Real Estate that helps landlords and property owners in Contra Costa County and the East Bay estimate how much an empty rental is costing them. You enter your monthly rent, HOA, utilities, estimated days vacant, and any other costs; the calculator shows your total vacancy cost, daily cost, annualized loss, and actionable insights like the cost of waiting and recoupment time if you hold out for higher rent.

Vacancy cost is the sum of lost rent and any expenses you still pay while the unit is empty: monthly rent (prorated by days vacant), plus HOA dues, utilities, and any additional fixed costs (e.g., insurance, landscaping). The calculator uses a 30-day month to prorate monthly amounts. Total vacancy cost = (monthly rent + HOA + utilities + other costs) × (days vacant ÷ 30). Daily vacancy cost = total vacancy cost ÷ days vacant.

Annualized loss is the percentage of your property’s annual rental revenue that this vacancy represents. It’s calculated as: (Total Vacancy Cost ÷ (Monthly Rent × 12)) × 100. For example, if your vacancy cost is $2,000 and your annual rent is $24,000, the annualized loss is 8.3%. This helps you see the impact of vacancy on your yearly returns.

The Cost of Waiting shows how much every 7 days of continued vacancy costs you (based on your daily vacancy cost) and how many days faster the unit would need to rent for a $100/month rent reduction to pay for itself. It’s a simple way to weigh the benefit of a small price adjustment versus staying vacant longer.

If you’re holding out for an extra $100/month in rent, but that delay causes one extra month of vacancy at $3,000, it will take you 30 months of that higher rent just to break even. The recoupment section helps you visualize whether the "ask" is worth the "wait." You enter the extra amount per month you’re aiming for; the tool divides your total vacancy cost by that amount to show how many months of that higher rent it takes to recover what you’ve already lost.

Market Health is a simple visual indicator based on how long the property has been or is expected to be vacant: under 14 days is typically green (healthy), 15–30 days is yellow (caution), and over 30 days is red (action recommended). It’s a prompt to consider pricing or marketing changes when vacancy stretches out.

The calculator uses the numbers you provide and standard formulas to produce estimates. Real outcomes depend on your actual costs, lease terms, and local market conditions in Contra Costa County and surrounding areas. The tool is for illustrative and educational purposes only and does not replace advice from a licensed professional. Consult Croskey Real Estate or your advisor for decisions about pricing, leasing, or property management.

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The Intake Window is the 30-day period after a tenant gives notice but before they move out. At Croskey Real Estate, we use this factual timeframe to begin marketing and screening. By starting the process during this window, you align with the 2–3 week search cycle of high-quality renters, which can significantly reduce the gap between leases and protect your annual revenue.

Vacancy isn’t a single moment—it’s a series of stages: notice period, move-out, turnover (cleaning/repairs), marketing, showings, screening, and lease-up. Each stage takes time. The calculator’s "days vacant" is the total span you’re paying costs with no rent. Understanding this timeline helps you see how the daily cost, annualized loss, and cost of waiting add up across those stages, and why starting marketing during the Intake Window can shorten the gap.