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Rental Cash Flow Calculator

Enter the monthly rent and your monthly costs. We compute monthly and annual pre-tax cash flow, including vacancy and a management allowance — instantly, in your browser.

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Pet rent, parking, laundry, etc.
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% of rent set aside for repairs.
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% of rent for property management.
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% of rent lost to vacancy.
Monthly cash flow
Fill in the fields above.

Breakdown

This tool is provided for general educational and informational purposes only. It is not financial, tax, or investment advice and does not account for your specific situation. Confirm figures with your own analysis and a qualified professional before making decisions.

Frequently asked questions

How do you calculate rental property cash flow?

Cash flow = gross rental income minus all expenses. Start with rent and other income, subtract vacancy loss, maintenance and management reserves, mortgage (principal + interest), taxes, insurance, and HOA. What’s left is your pre-tax cash flow.

What is good monthly cash flow on a rental?

Many investors aim for at least $100–$300 per unit per month after all expenses and reserves, but targets vary by market and strategy. Positive cash flow after a realistic maintenance and vacancy reserve is the key test.

Should I include vacancy and maintenance in cash flow?

Yes. Leaving out vacancy and maintenance reserves is the most common way new investors overstate cash flow. Even a paid-off, low-turnover property should budget for both.

Is this cash flow before or after taxes?

This tool calculates pre-tax cash flow. Your after-tax result depends on depreciation, deductions, and your tax situation — consult a tax professional.

See cash flow across every property

Hatchkeep keeps the income, expenses, and documents for every property in one place — free for 50 properties and unlimited units.

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Free tool by Hatchkeep. Related: cash-on-cash return calculator · cap rate calculator · rental ROI calculator