Rental Income Calculator
Calculate net rental income after vacancy, management, maintenance, insurance, taxes, and mortgage.
By Konstantin Iakovlev · Updated September 2026 · Source: CFPB — Owning a Home
Net Operating Income
$12,840.00
Monthly Cash Flow
-$130.00
Cash-on-Cash Return
-2.6%
Rental Income Analysis
| Gross Annual Income | $24,000.00 |
| Vacancy Loss | -$1,200.00 |
| Effective Gross Income | $22,800.00 |
| Property Management | -$2,280.00 |
| Maintenance Reserve | -$2,280.00 |
| Insurance | -$1,800.00 |
| Property Tax | -$3,600.00 |
| Net Operating Income (NOI) | $12,840.00 |
| Mortgage Payments | -$14,400.00 |
| Annual Cash Flow | -$1,560.00 |
| Cash-on-Cash Return | -2.6% |
Use the Rental Income Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
The Rental Income Calculator helps real estate investors estimate the potential profit or loss from a rental property. It's crucial for evaluating a property's financial viability, understanding cash flow, and making informed investment decisions before purchasing or setting rental rates.
The calculator starts from a year of rent and takes off the vacancy allowance to get effective gross income. From that it subtracts property management and a maintenance reserve, each a percentage of effective gross income (10% by default), and the monthly insurance and property tax you enter; what is left is net operating income (NOI). The mortgage payment is not an operating expense, so it comes off after NOI to give cash flow, and if you enter the cash you invested, the calculator divides a year's cash flow by it to show your cash-on-cash return.
Don't forget to include vacancy rates and unexpected maintenance costs – these are often underestimated. Also, ensure you account for all potential income streams (e.g., laundry, parking fees) and all expenses, not just the obvious ones, to get an accurate picture.
Example: A $2,000-a-Month Rental
- 1 Input: Monthly Rent $2,000; Vacancy Rate 5%; Property Management 10%; Maintenance Reserve 10%; Insurance $100/month; Property Tax $250/month; Mortgage Payment $1,000/month; Down Payment $50,000.
- 2 Income: $2,000 × 12 = $24,000 gross. Vacancy loss at 5% is $1,200, leaving effective gross income of $22,800.
- 3 Operating expenses: management 10% × $22,800 = $2,280, maintenance reserve 10% × $22,800 = $2,280, insurance $1,200 and property tax $3,000 a year, $8,760 in all. NOI = $22,800 − $8,760 = $14,040.
- 4 Cash flow: $14,040 − $12,000 of mortgage payments = $2,040 a year, or $170 a month, and $2,040 ÷ $50,000 = 4.1% cash-on-cash. Positive cash flow means the rent covers every cost you entered; a negative figure is a signal to revisit the rent, the expenses or the price. Laundry, parking or other income has no field of its own, so add it to the rent.
Source: CFPB — Owning a Home · Last updated: September 2026
Frequently Asked Questions
How do I calculate net rental income?
What is the 1% rule in rental property?
How much should I set aside for rental property maintenance?
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