Measure vacancy impact across units and rent streams. Add collection gaps, concessions, and bad debt. Download clear reports for smarter property income planning today.
Gross Scheduled Rent = Total Units × Average Monthly Rent × Period Months
Gross Potential Income = Gross Scheduled Rent + Scheduled Other Income
Base Vacancy Loss = Vacant Units × Average Monthly Rent × Period Months
Total Vacancy Loss = Base Vacancy Loss + Turnover And Downtime Loss
Collection Loss = Unpaid Rent + Concessions + Bad Debt
Total Loss = Total Vacancy Loss + Collection Loss
Effective Gross Income = Gross Potential Income - Total Loss
Total Loss Rate = Total Loss ÷ Gross Potential Income × 100
| Scenario | Total Units | Vacant Units | Monthly Rent | Collection Loss | Total Loss Rate |
|---|---|---|---|---|---|
| Stable property | 20 | 1 | $1,200 | $2,000 | 8.20% |
| Moderate pressure | 20 | 2 | $1,200 | $4,300 | 14.86% |
| High loss review | 20 | 4 | $1,200 | $7,500 | 27.43% |
Vacancy and collection loss measures income that a rental property does not receive. Vacancy loss comes from empty units, downtime, and missed rent during turns. Collection loss comes from billed rent that is not collected. It may include unpaid rent, concessions, bad debt, and other rent gaps. Together, these losses show the distance between possible income and real income.
A strong estimate starts with gross potential income. This is the rent a property could earn if every unit paid full market rent for the chosen period. Other scheduled income can also be added. Examples include parking, storage, laundry, or pet rent. After that, vacancy loss and collection loss are deducted. The remaining amount is effective gross income. This value supports budgets, loan reviews, sale analysis, and management reports.
Small changes can matter. A large building may look stable, yet a few vacant units can lower monthly income quickly. A small building may be more sensitive because one empty unit can represent a high share of total rent. Collection issues can also grow silently. Late payments, write-offs, and recurring concessions reduce cash flow even when units appear occupied.
This calculator separates vacancy from collection loss. That helps owners find the real issue. High vacancy may point to pricing, marketing, location, or unit condition. High collection loss may point to screening, lease enforcement, payment systems, or tenant support. The tool also compares total loss against a target allowance. This makes budget review easier.
Use realistic numbers. Enter the same period for all values. If the period is one month, use monthly rent and monthly losses. If the period is twelve months, enter twelve months as the period. Keep extra income tied to the same period. Review the loss rates after calculation. A lower total loss rate usually means stronger income quality. A higher rate needs review, planning, and follow up.
The export buttons help save the result for records. CSV is useful for spreadsheets. PDF is useful for sharing. Recheck assumptions before using results for financing, taxes, or purchase decisions. Market rent, lease terms, and tenant behavior can change. Regular updates keep the estimate useful and fair. Compare several periods to see trends before making final decisions.
Vacancy loss is rent not earned because units are empty. It can also include downtime during tenant turnover.
Collection loss is billed income that was not collected. It may include unpaid rent, concessions, discounts, and write-offs.
Other income gives a fuller view of property income. It may include parking, storage, laundry, fees, or pet rent.
Use one consistent period. If the period is twelve months, use annual totals for losses and other income.
Total loss rate shows the share of potential income lost to vacancy and collection issues. Lower rates usually show stronger income quality.
Effective gross income is income left after vacancy and collection losses are deducted from gross potential income.
It compares actual total loss with a planned allowance. This helps with budget checks and performance reviews.
No. This calculator provides an estimate. Use professional review for financing, tax reporting, valuation, or legal decisions.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.