How to Calculate Rental Property ROI - A Step-by-

Rental property investing can build serious wealth, but only if you buy at the right price and understand your true returns. Too many investors focus on gross rental yield while ignoring the expenses that eat into profit. This guide walks you through three methods to calculate rental property ROI properly.

Method 1: Gross Rental Yield

The simplest measure, but also the least useful on its own:

Gross Rental Yield = (Annual Rent / Property Purchase Price) x 100

Example: You buy a property for $250,000 and rent it for $1,800/month ($21,600/year).

Gross yield = $21,600 / $250,000 x 100 = 8.64%

This looks great, but it ignores all expenses. The actual return will be significantly lower.

Method 2: Cap Rate (Net Operating Income)

The capitalization rate accounts for operating expenses:

Cap Rate = (Net Operating Income / Property Value) x 100
NOI = Gross Rent - Operating Expenses

Operating expenses typically include:

• Property taxes ($2,500 - $5,000/year for a $250K property)
• Insurance ($1,000 - $2,000/year)
• Maintenance and repairs (budget 1-2% of property value annually)
• Property management (8-12% of gross rent if using a manager)
• Vacancy allowance (5-10% of gross rent)
• HOA fees (if applicable)

Example continued:

Item	Annual Amount
Gross rent	$21,600
Property tax	-$3,200
Insurance	-$1,400
Maintenance (1.5%)	-$3,750
Vacancy (5%)	-$1,080
Property management (10%)	-$2,160
Net Operating Income	$10,010

Cap rate = $10,010 / $250,000 = 4.0%. A much more realistic picture than the 8.64% gross yield.

Method 3: Cash-on-Cash Return (Best for Leveraged Investors)

If you use a mortgage, cash-on-cash return measures the return on your actual cash invested:

Cash-on-Cash Return = (Annual Cash Flow / Total Cash Invested) x 100

Example: You put 25% down ($62,500) plus $7,500 in closing costs. Total cash invested = $70,000.

Your mortgage on $187,500 at 7% for 30 years = $1,248/month = $14,976/year.

Annual cash flow = NOI ($10,010) - mortgage payments ($14,976) = -$4,966.

Cash-on-cash return = -$4,966 / $70,000 = -7.1%. This property is cash-flow negative.

But Wait: Total ROI Includes Appreciation and Equity

A cash-flow-negative property can still be a good investment when you factor in:

• Mortgage principal paydown: In year one, approximately $3,800 of your mortgage payments go toward principal. This is equity you are building.
• Appreciation: If the property appreciates 3% annually, that adds $7,500 in year one.
• Tax benefits: Depreciation ($250,000 building value / 27.5 years = $9,091/year) offsets taxable rental income.

Total ROI = (Cash flow + Principal paydown + Appreciation) / Cash invested

= (-$4,966 + $3,800 + $7,500) / $70,000 = 9.0%

What Is a Good ROI for Rental Property?

Metric	Good	Great	Exceptional
Cap rate	5-7%	7-10%	10%+
Cash-on-cash return	4-6%	6-10%	10%+
Total ROI (with leverage)	10-15%	15-20%	20%+

Common Mistakes When Calculating ROI

1. Underestimating expenses: The "50% rule" is a quick check: operating expenses (excluding mortgage) typically consume 40-50% of gross rent.
2. Ignoring vacancy: Even in strong markets, budget 5-8% for vacancy and tenant turnover costs.
3. Forgetting capital expenditures: Roofs, HVAC systems, and water heaters all need eventual replacement. Budget 5-10% of rent for CapEx reserves.
4. Using appreciation as your primary return driver: Appreciation is speculative. Cash flow is reliable.

Run the numbers on any property with our Real Estate ROI Calculator.