Rental Property Analysis: The Complete Beginner's Guide

You found a rental property listing that looks promising. The price seems right, the neighborhood looks decent, and the seller says it’s rented for $1,200/month. But is it actually a good deal? Here’s how to analyze any rental property from scratch.

The 7 Numbers You Need

Every rental property analysis starts with these inputs:

1. Purchase price — What you’re paying for the property

2. Monthly rent — What it rents for (verify with comps, not the seller’s word)

3. Property taxes — Annual amount from county records

4. Insurance — Get a quote or estimate 0.5-1% of value

5. Vacancy rate — 5-10% depending on market

6. Maintenance budget — 5-10% of gross rent

7. Financing terms — Down payment, interest rate, loan term

Step 1: Calculate Net Operating Income (NOI)

Start with gross annual rent, subtract vacancy, then subtract all operating expenses (taxes, insurance, maintenance, management). This gives you NOI — the property’s earning power before financing.

Step 2: Calculate Cap Rate

Divide NOI by the purchase price. This tells you the return on an all-cash basis. Compare it to other properties in the same market. If it’s significantly below market cap rates, you’re overpaying. Read our guide to cap rates by market for benchmarks.

Step 3: Calculate Cash Flow

Subtract your annual mortgage payment from NOI. This is your actual cash flow — the money that hits your bank account. Positive cash flow is the minimum bar. Great deals produce $150-300+/month per unit after all expenses.

Step 4: Calculate Cash-on-Cash Return

Divide annual cash flow by your total cash invested (down payment + closing costs + any rehab). This is your actual return on the money you put in. Target 8-12%+ for most markets.

Step 5: Check the DSCR

Divide NOI by annual debt service. If it’s below 1.0, the property doesn’t cover its own mortgage — you’ll be feeding it cash every month. Target 1.25+ for comfortable cash flow.

The Quick Screen: 1% Rule

Before diving deep, use the 1% rule as a quick filter: monthly rent should be at least 1% of the purchase price. A $150,000 property should rent for $1,500+/month. Properties that pass the 1% rule are worth analyzing further. Those that don’t usually won’t cash flow.

Do It in 30 Seconds with becvio

becvio automates this entire analysis. Add a property with its basic details, and becvio instantly calculates NOI, cap rate, cash-on-cash, DSCR, LTV, equity, and a composite health score. No spreadsheets, no guessing. Try the free calculator tools or sign up to track your entire portfolio.