Rental Income Over Time: How Rent Growth Drives Your Returns

Published October 12, 2026

Free tool: Rent Calculator→

A rental property's first-year numbers are only the start. Rent usually rises over time, so do expenses, and the property's value changes too. Small differences in those growth rates add up over a decade. This guide shows how, with a worked example for a property bought with cash, using the free Rent Calculator.

How rental income grows

Each year:

• Rent rises by your expected rent increase.
• Expenses such as taxes, insurance and maintenance rise by their own rate.
• Cash flow is the rent minus the expenses.
• The property value grows with appreciation.

Your total return is the property's gain in value plus all the cash flow you've collected.

Example: a $250,000 rental bought with cash

You buy a property for $250,000 in cash. It rents for $2,000 a month, rising 3% a year; expenses are $800 a month, rising 2% a year; and the property appreciates 4% a year:

• First-year cash flow: $14,400, a 5.8% yield on the price
• Tenth-year cash flow: $19,842, because rent grows faster than expenses
• Cash flow over 10 years: $170,016
• Property value after 10 years: $370,061
• Total return: $290,077, an annualized 8.0%

Small growth rates, big differences

• If expenses grow 4% and rent only 2%, the tenth-year cash flow is just $15,018 and the 10-year annualized return falls to 7.5%.
• If the property appreciates 2% instead of 4%, it's worth about $304,749 after 10 years and the return falls to 6.6% a year.

Be realistic about local rent growth and about costs that tend to rise quickly, such as insurance and property tax.

What the calculator assumes

• A cash purchase: the initial investment is the price you pay, with no mortgage. For a financed rental, see How to Analyze a Rental Property.
• Expenses you enter include everything: add vacancy, repairs, management and HOA fees to the monthly expenses.
• Cash flow isn't reinvested, and taxes, closing costs and selling costs are left out.

How to use the Rent Calculator

1. Open the Rent Calculator.
2. Enter the monthly rent and the yearly rent increase.
3. Enter the monthly expenses and how fast you expect them to rise.
4. Enter the initial investment (the price you pay in cash), the yearly appreciation and the holding period.
5. Read the results: the monthly cash flow, the total cash flow, the final property value and the annualized ROI, with a chart of property value, cash flow and total return over time and a yearly breakdown.

Frequently asked questions

How much do rents increase each year?

Nationally, rents have tended to rise 2% to 4% a year on average, roughly with inflation, though some markets rise much faster and some cities cap increases.

What is a good rental yield?

Many investors look for a net yield, cash flow ÷ price, of at least 5% to 8% on an all-cash purchase, depending on the area and the risk. The example yields 5.8% in its first year.

Should rent increases or appreciation matter more?

Both matter. Over 10 years in the example, cash flow adds $170,016 and appreciation adds $120,061. Rent growth also raises cash flow every year.