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Rental Property Calculator

Rent minus a mortgage payment is not the whole story. Vacancy, repairs, taxes, insurance and management all take a share. This calculator works down from rent to net operating income and then to cash flow.

Prefilled numbers are examples. Replace them with your own.

Percent of rent.

Percent of rent. Use 0 if self-managed.

HOA, utilities you pay, lawn care.

Optional. Needed for cap rate.

Optional. Principal and interest for the year.

Optional. Down payment, closing costs and repairs. Needed for cash-on-cash.

Your result appears here after you press Calculate.

How it is calculated

  • Effective income = (monthly rent + other income) × 12 × (1 − vacancy).
  • Operating expenses = property tax + insurance + maintenance % of rent + management % of rent + other monthly costs × 12.
  • NOI = effective income − operating expenses. NOI excludes loan payments.
  • Cap rate = NOI ÷ price.
  • Cash flow = NOI − annual loan payments you enter. Cash-on-cash = cash flow ÷ cash invested.

Assumptions and limits

  • Prefilled numbers are examples for illustration. Replace them with quotes and prices from your own area.
  • You enter your own loan payment. This site does not calculate mortgages.
  • Big repairs such as a roof or HVAC are not smooth annual costs. Consider a separate reserve.

For general education only. This is not investment, tax, legal or financial advice. Real results depend on financing, taxes, local market conditions and unexpected costs. Consider speaking with a qualified professional before buying or selling property.

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