Cap rate (capitalization rate) is net operating income divided by purchase price. It tells you the unleveraged return a property generates. A $300,000 property producing $18,000 NOI has a 6% cap rate. It's the most common metric for comparing rental properties because it strips out financing and gives you an apples-to-apples comparison.

What is a good cap rate for rental property?

For residential rentals, 5-8% is generally considered solid. Above 8% is excellent but often comes with higher risk (rougher neighborhoods, older buildings, declining markets). Below 5% is common in expensive metros where investors rely more on appreciation than cash flow.

How is cap rate different from cash-on-cash return?

Cap rate ignores financing — it measures the property's return as if you paid all cash. Cash-on-cash return measures your actual return on the cash you invested, factoring in your mortgage. A property with a 6% cap rate could yield a 12% cash-on-cash return with leverage.

What is the 1% rule in real estate?

The 1% rule says monthly rent should be at least 1% of the purchase price. A $200,000 property should rent for at least $2,000/month. It's a quick screening tool — many successful rentals don't pass the 1% rule, especially in higher-priced markets.

What is the BRRRR strategy?

BRRRR stands for Buy, Rehab, Rent, Refinance, Repeat. You buy a distressed property below market value, renovate it, rent it out, then do a cash-out refinance based on the new appraised value to pull out most or all of your original capital and repeat the process.

Where does CapRateCity get its data?

Our city-level data draws from publicly available sources including U.S. Census Bureau population and income figures, Zillow Home Value Index for median prices, HUD Fair Market Rents, and state/county tax assessor records. Data is updated periodically.

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How to Analyze a Rental Property in 15 Minutes (Step-by-Step)

A repeatable framework to evaluate any rental deal quickly. Screen fast, analyze deep, and know your walk-away points.

9 min read · CapRateCity.com

Most investors either over-analyze deals (spending weeks on a property that should have been rejected in five minutes) or under-analyze them (buying on gut feeling and regretting it later). The solution is a structured 15-minute framework that catches deal-breakers early and digs into the numbers that actually matter.

Here is the exact process, broken into five phases. We will walk through a real example using Columbus, Ohio — a $220,000 property renting for $1,350/month.

Minutes 1-3: The Quick Screen

Before you open a spreadsheet, run two quick tests to decide if this property is worth analyzing at all.

The 1% rule check

Does the monthly rent equal at least 1% of the purchase price? For our Columbus property: $1,350 / $220,000 = 0.61%. This fails the 1% rule. In most markets today, very few properties pass a strict 1% test — but it gives you an instant sense of where the deal falls on the spectrum. Properties at 0.7%+ are worth a closer look. Below 0.5% is almost always a pass.

Price vs market median

How does the asking price compare to the market median? Use our market data to see median home prices and rents for any city. If the property is significantly above the market median, the rent-to-price ratio is likely to be weaker. If it is below the median, there may be more upside — or a reason it is cheaper (bad neighborhood, deferred maintenance, flood zone).

Quick screen verdict on our Columbus deal: The 1% ratio is 0.61%, which is below the 0.7% threshold for a strong deal. But Columbus has solid job growth and population trends. Worth continuing the analysis, but the numbers will need to be tight.

Minutes 3-6: Income Analysis

Now calculate what the property will actually earn.

Gross rental income

$1,350/month x 12 = $16,200/year gross rental income.

Vacancy estimate

No property is occupied 100% of the time. Budget for vacancy based on the local market. Columbus has a vacancy rate around 5-7%. We will use 5%, which is approximately 2.5 weeks per year of lost rent.

Vacancy loss: $16,200 x 5% = $810.

Effective gross income

$16,200 - $810 = $15,390/year effective gross income. This is the number that flows into your expense analysis. Any additional income (pet fees, storage rental, laundry) gets added here. For our example, we will keep it simple.

If you want to dig deeper into vacancy rates for your target market, our vacancy loss calculator can help you model different scenarios.

Minutes 6-10: Expense Analysis and Cap Rate

This is where most deals are won or lost. Underestimating expenses is the number one mistake new investors make.

Operating expenses

Property taxes: Columbus averages about 1.5-1.8% of assessed value. On a $220,000 property: approximately $3,520/year ($293/month).

Insurance: Landlord policy in Ohio runs about $1,320/year ($110/month).

Maintenance and repairs: Budget 5-10% of gross rent. We will use 8%: $16,200 x 8% = $1,296/year ($108/month). This covers routine repairs — leaky faucets, appliance issues, minor fixes.

Capital expenditure reserves (capex): Budget another 5% for big-ticket replacements — roof, HVAC, water heater, flooring. $16,200 x 5% = $810/year ($68/month).

Property management: Even if you self-manage, budget 8-10% so your analysis works regardless of who manages the property. $16,200 x 8% = $1,296/year ($108/month).

Total annual operating expenses: $3,520 + $1,320 + $1,296 + $810 + $1,296 = $8,242.

Net operating income and cap rate

NOI = Effective Gross Income - Operating Expenses

$15,390 - $8,242 = $7,148 NOI.

Cap Rate = NOI / Purchase Price x 100

$7,148 / $220,000 = 3.2% cap rate.

Run these numbers instantly with our cap rate calculator, or check the Columbus, Ohio market page for current cap rate data.

3.2% is low. For a cash-flow-oriented investment, most investors want to see 5%+ cap rates. A 3.2% cap rate means you are relying heavily on appreciation and equity paydown to generate returns. This does not automatically kill the deal, but it shifts the investment thesis from cash flow to growth.

Calculate the cap rate on your deal →

Minutes 10-13: Financing Analysis

Now add the mortgage to see what actually lands in your bank account.

Mortgage payment

Purchase price: $220,000. Down payment: 25% ($55,000). Loan amount: $165,000. Interest rate: 7%. Term: 30 years.

Monthly mortgage payment: approximately $1,098.

Monthly cash flow

Rent: $1,350. Vacancy (5%): -$68. Operating expenses: -$687. Mortgage: -$1,098.

Monthly cash flow: -$503.

Cash-on-cash return

Total cash invested: $55,000 down + $5,000 closing costs = $60,000.

Annual cash flow: -$503 x 12 = -$6,036.

Cash on Cash Return = Annual Cash Flow / Total Cash Invested x 100

-$6,036 / $60,000 = -10.1% cash on cash return.

Use our cash-on-cash calculator to model different financing scenarios and see how changing the down payment or interest rate affects your return.

Minutes 13-15: The Deal-Breaker Check

In the final two minutes, run through five deal-breaker questions. If any answer is a hard yes, walk away.

Is the cash flow negative?

Yes — this deal runs -$503/month. That is $6,036 per year out of pocket. Unless you have strong conviction on appreciation and a plan to refinance when rates drop, this is a deal-breaker for a cash-flow-focused investor.

Is the vacancy rate too high?

Columbus vacancy is manageable at 5-7%. Not a deal-breaker here. Markets above 10% vacancy are red flags — extended vacancies compound negative cash flow rapidly.

Is population/job growth negative?

Columbus has strong growth fundamentals — Ohio State University, major employers, and steady population increases. Green flag. Markets with declining population and shrinking job bases create long-term rent compression and appreciation risk.

Are property taxes crushing the NOI?

At 1.6% effective tax rate, Columbus taxes are moderate. Markets where property taxes exceed 2.5% of property value (parts of New Jersey, Illinois, Texas) make cash flow significantly harder to achieve. Factor this in early.

Is the price realistic?

Compare the asking price to recent comparable sales. If the property is priced above comps, there is room to negotiate. If comparable properties have sold for $220,000, the seller's price is fair and negotiation leverage is limited.

Verdict on our Columbus deal: At $220,000 with $1,350/month rent and 7% financing, this deal does not work as a cash flow investment. The 3.2% cap rate and -10.1% cash on cash return are below acceptable thresholds. However, the deal could work if: (1) you negotiate the price down to $180,000-$190,000, (2) interest rates drop to 5.5% or below and you refinance, or (3) your investment thesis is pure appreciation with a long time horizon. At $190,000, the same property produces a 3.8% cap rate and roughly -$300/month cash flow — still negative but closer to breakeven.

Red Flags That Kill Deals

Negative population growth. Fewer people means fewer renters, which means downward pressure on rents and property values. Avoid shrinking markets unless the numbers are exceptionally strong.

Vacancy above 10%. High vacancy signals either oversupply or weak demand. Either way, your property will sit empty more often than your projections assume.

Rent-to-price ratio below 0.5%. At this level, even aggressive expense management and favorable financing will struggle to produce positive cash flow.

Deferred maintenance on major systems. A property that needs a new roof ($8,000-$15,000), HVAC ($5,000-$10,000), or foundation work ($10,000-$30,000) within the first two years will consume all your cash flow and then some. Factor these costs into your purchase price or walk away.

Green Flags That Signal a Winner

Rent-to-price ratio above 0.8%. Deals at this level have room to absorb expenses and still cash flow, even with today's rates.

Below-median price in a growing market. You are buying at a discount in an area where demand is increasing. This is the sweet spot for both cash flow and appreciation.

Recently updated major systems. A new roof, HVAC, and water heater mean minimal capex for the next 10-15 years. Your maintenance reserves can stay in your pocket.

Multiple strong employers in the area. Economic diversification protects against a single employer leaving town and cratering the rental market. University towns and state capitals tend to have this built in.

Browse all 775 markets to find cities with the best rent-to-price ratios and cap rates. For deeper mortgage analysis, MortgageMathLab.com can help you model different loan scenarios to find the financing structure that makes a marginal deal work.

Bottom line: You do not need hours to analyze a rental property. The 15-minute framework — quick screen, income analysis, expense analysis, financing analysis, deal-breaker check — will filter out 90% of bad deals before you waste time on inspections and due diligence. Run this framework on every property, every time. The discipline of consistent analysis is what separates profitable investors from the ones who overpay.

Run a full deal analysis now →

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