← Back to BlogMay 202611 min readDan White
How to Analyze a Rental Property: Step-by-Step Guide
Rental property analysis answers one question: does this property produce a return worth the capital and risk? The answer requires running specific numbers — not gut feelings, not optimistic projections — with accurate inputs for your market and your financing.
I analyze every potential rental the same way regardless of price point. The framework is consistent; only the numbers change. Here's the full process.
Northern Virginia Rental Market
Live Market Data
Washington, DC Housing Market
Cool Market
Data through Mar 2026
Median Sale Price
$590,000
+0.8% YoY
Median Days on Market
44 days
lower = faster market
Sale-to-List Ratio
99.7%
buyers' market
Homes Sold
4,457
last reported month
Source: Redfin Data Center. Updated monthly. Data reflects Washington, DC residential sales.
redfin.comStep 1: Establish Gross Rental Income
Find 3–5 comparable rentals in the same neighborhood — similar size, bed/bath, condition. Pull from Rentcast, Zillow Rental Manager, or local property management contacts. Use the median, not the high end. Assume 5% vacancy (8–10% in softer markets) and subtract from gross to get effective gross income.
Step 2: Calculate Operating Expenses
- Property taxes: Use the actual tax bill, not an estimate
- Insurance: Get a landlord policy quote — typically $800–$2,000/year
- Property management: 8–12% of gross rent if you're not self-managing
- Maintenance: Budget 5–10% of gross rent for an average-age property
- CapEx reserves: Budget 5–8% of gross rent for major system replacements
- Vacancy allowance: 5% standard; higher in markets with seasonal demand
Step 3: Calculate NOI
Net Operating Income = Effective Gross Income − Operating Expenses. This is the property's income before debt service. NOI is used to calculate cap rate and is the number lenders look at for DSCR.
Step 4: Model Your Financing
DSCR loans (2026 rates: 6.5–8% depending on credit and LTV) are the standard for investment rental acquisitions. Conventional investment loans are cheaper but harder to qualify for. Input your actual rate, term, and down payment to calculate monthly debt service.
Step 5: Calculate Cash Flow and Returns
- Monthly cash flow: NOI/12 − Monthly mortgage payment
- Annual cash flow: Monthly × 12
- Cash-on-cash return: Annual cash flow / Total cash invested (down payment + closing costs + any rehab)
- Cap rate: NOI / Purchase price
- DSCR: NOI / Annual debt service (lender minimum: 1.20–1.25)
Run Your Full Rental Analysis Free
FreeDealCalc runs all five steps automatically — gross rent, expenses, NOI, financing, and returns — in one free conversation with Freddie.
Analyze My Rental Free →What the Numbers Need to Look Like
- DSCR ≥ 1.25: Minimum for most lenders; 1.35+ is comfortable
- Cash-on-cash ≥ 4%: Absolute minimum. Target 6%+ in most markets.
- Cap rate ≥ market cap rate: Buying above market cap rate means you're overpaying relative to income
- Positive monthly cash flow: Even $100/month matters — it means the property services itself
Dan White is a licensed Virginia real estate agent at Pearson Smith Realty and founder of FreeDealCalc.com. He has been buying rental properties in Northern Virginia for 20+ years.