How to Calculate ROI on a Rental Property: A Guide for Israeli Investors

What ROI Actually Means for a Rental Property (And Why It's More Than One Number)

ROI on a rental property isn't a single calculation — it's at least three different numbers, and experienced investors use all of them for different reasons. The basic formula is: net profit ÷ total invested × 100. But "net profit" and "total invested" mean different things depending on whether you're analyzing a property all-cash, with a mortgage, or measuring long-term wealth creation including appreciation.

The mistake most beginners make is treating ROI as one universal metric. They'll hear someone quote a 9% return and assume that's the cap rate — when it might be the cash-on-cash return on a leveraged deal. Or they'll calculate gross rent and call it yield, skipping the expenses that cut that number roughly in half. Getting these three numbers straight before you analyze any deal protects you from making a decision based on the wrong signal.

The Three Numbers Every Rental Investor Actually Uses

Cap rate (capitalization rate) is the most widely quoted metric in commercial and residential real estate. It measures a property's income relative to its price, entirely independent of financing. The formula: Net Operating Income (NOI — gross rent minus all operating expenses, before debt service) ÷ purchase price × 100. A $280,000 property generating $18,000 in NOI has a 6.4% cap rate. Cap rate tells you how the asset itself is performing — it's the apples-to-apples comparison across deals.

Cash-on-cash return (CoC) measures what your actual cash investment earns in actual cash flow. Formula: annual pre-tax cash flow ÷ total cash invested × 100. If you put $70,000 down and clear $7,200 after mortgage payments and all expenses, your CoC is 10.3%. This is the number that matters for your wallet — it accounts for financing costs, which cap rate ignores entirely.

Total ROI captures the full picture over time: cash flow + principal paydown + appreciation + tax benefits, divided by your total cash invested. It's harder to calculate in real-time (you can't know future appreciation), which is why most investors use cap rate and CoC for acquisition decisions and reserve total ROI for portfolio reviews.

The Gross Rent Multiplier (GRM) is a quick screening tool, not a final answer. GRM = purchase price ÷ annual gross rent. Florida's mid-tier markets typically showed GRMs between 11 and 14 in 2025, implying 7–9% gross yields before expenses. A GRM of 12 means you're paying 12 years of gross rent for the property — useful for eliminating overpriced listings quickly, but it tells you nothing about expenses or net returns.

A Real-World Walkthrough: A $280,000 Tampa Duplex

Here's how the numbers work on a realistic deal. Assume a $280,000 duplex in a Tampa suburb, both units renting at $1,400/month each ($2,800/month combined, $33,600 annual gross rent).

Step 1 — Adjust for vacancy. Tampa's vacancy rate runs around 6.9%, close to the national average. At 7% vacancy, effective gross income drops to $31,248/year.

Step 2 — Subtract operating expenses:

• Property management at 9% of collected rent: ~$2,812/year
• Property taxes (Florida, estimated): ~$3,500/year
• Landlord insurance: ~$2,000/year
• Maintenance and repairs: ~$1,800/year
• CapEx reserve at 1.25% of property value (pre-2000 build): ~$3,500/year

Total expenses: ~$13,612/year

Step 3 — Calculate NOI. $31,248 − $13,612 = $17,636 NOI

Step 4 — Cap rate. $17,636 ÷ $280,000 = 6.3% — solidly within the 5.8–7.2% range seen in Tampa/Orlando secondary submarkets in Q4 2025.

Step 5 — Cash-on-cash return with a mortgage. At 25% down ($70,000) and the current 30-year fixed rate of 6.85%, the monthly payment on a $210,000 loan is approximately $1,381, or $16,572/year. Annual cash flow: $17,636 NOI − $16,572 debt service = $1,064. CoC return: $1,064 ÷ $70,000 = 1.5%.

That CoC number looks modest. That's the rate environment doing its work — and it's exactly why cap rate minimums matter now more than they did in 2020.

The Expenses Most Beginners Forget

The gap between gross rent and actual cash flow is where most first-time investors get a rude surprise. Running the numbers on gross rent alone produces an ROI that can be twice the real figure.

The expenses that routinely get overlooked:

• CapEx reserves — Experienced buy-and-hold investors set aside 1–1.5% of property value per year for capital expenditures (roof, HVAC, plumbing, appliances). On a $280,000 property built before 2000, that's $2,800–$4,200/year. This money sits in an account; you don't spend it every year, but when the roof goes, you have it. Skipping this in your pro forma isn't optimism — it's a math error.
• Property management — Florida property managers typically charge 8–10% of gross collected rent. At 9%, that's $2,800/year on a $31,000 effective gross income. Even if you self-manage now, underwriting with management fees tells you the deal's real floor — and it protects you if life changes.
• Vacancy — A 6.9% vacancy rate means roughly 25 days empty per year per unit on average. Model at least 7–8% in your projections, even in tight markets. Vacancy also means re-leasing costs: cleaning, minor repairs, sometimes a month's rent to a leasing agent.
• Landlord insurance — This is not the same product as homeowner's insurance. Landlord policies cover liability and loss of rent; they typically cost 15–25% more than an equivalent homeowner policy.
• HOA fees — For condos or certain single-family communities, HOA fees can run $200–$600/month and are often non-negotiable. A $400/month HOA on a property that generates $1,800/month in rent is a significant drag.

The order of operations matters: calculate NOI (gross rent minus all operating expenses, before debt service) before you ever touch the financing math. Cap rate is an asset-level metric; it should be clean of mortgage payments.

How Leverage Changes the Return Picture

Leverage — using a mortgage to buy property — is the defining variable in cash-on-cash return. The same property produces dramatically different CoC numbers depending on how much you put down and at what rate.

In the Tampa duplex example above, the 6.3% cap rate translated to only 1.5% CoC at 25% down and 6.85% mortgage rates. That's because the mortgage rate (6.85%) exceeds the cap rate (6.3%) — a condition called negative leverage. When debt costs more than the asset yields, every dollar of financing reduces your cash return. This is the current reality for most leveraged US rental deals.

The exit from negative leverage isn't mysterious: either buy at a higher cap rate (find deals above 7%+ in markets like secondary Tampa/Orlando submarkets), put more cash down to reduce debt service, or wait for rates to compress. Alternatively, factor in principal paydown and appreciation — in a total-return framework, a 1.5% CoC deal can still work if you're building equity and the market appreciates over a 7-year hold.

Contrast this with the 2020–2022 era, when 30-year rates sat at 3–4%. At 3.5% financing on that same $280,000 duplex, annual debt service would have been roughly $11,300 — leaving $6,300 in cash flow, a 9% CoC return. Same asset, same rents, same cap rate. Different rate environment, completely different cash experience. This is why the 6.85% average rate as of June 2026 changes the acquisition calculus — a 6% cap rate that worked beautifully in 2021 is now marginal on a leveraged basis.

What a Good ROI Looks Like in 2025–2026

Context matters more than any single target number — but here are the benchmarks experienced investors are using in the current environment.

Cap rate targets: Secondary Florida markets (Tampa suburbs, Orlando metro, parts of Jacksonville) have been trading at 5.8–7.2% cap rates. Coastal Miami-Dade was closer to 4.0–4.8%. Most buy-and-hold investors are targeting 6.5%+ in secondary markets to leave room for financing costs. A sub-5% cap rate in a high-rate environment requires a very strong appreciation thesis to justify.

Cash-on-cash return: The historical target for a solid leveraged rental deal has been 8–12% CoC. In today's rate environment, 6–8% CoC is realistic in well-chosen secondary markets; hitting 10%+ typically requires distressed pricing, significant value-add, or all-cash acquisition. If a marketed deal shows 12%+ CoC at current rates with 25% down, scrutinize the expense assumptions — especially vacancy and CapEx reserves.

Total ROI over 5–10 years: Most conservative underwriting uses 2–3% annual appreciation, principal paydown on the mortgage, annual cash flow, and tax benefits (depreciation). Total returns in the 10–15% annualized range have been achievable in Florida's secondary markets even in a compressed cash flow environment, but they require the appreciation component to materialize.

A 6% cap rate in Tampa's suburbs is a solid starting point in 2026. The same cap rate in coastal Miami might be overpriced given the risk-adjusted alternatives available elsewhere.

Is a 6% Cap Rate Good for a Florida Rental Property?

A 6% cap rate in Florida is generally solid — it sits in the lower-middle range for secondary markets and toward the top of what coastal Florida trades at. Whether it's good depends entirely on your financing structure and investment thesis.

If you're buying all-cash: a 6% cap rate beats the historical national average and compares favorably to coastal markets at 4–5%. You're getting a real yield on a real asset with tax advantages, inflation protection, and appreciation optionality layered on top.

If you're financing at 25% down and 6.85%: your cap rate needs to exceed your mortgage rate (or get close to it) to produce positive cash flow. At 6.3% cap and 6.85% mortgage rate, cash flow is thin — not negative, but thin. The deal works if you underwrite appreciation conservatively and the asset is in a market with strong rent demand fundamentals.

For comparison: Tampa/Orlando secondary submarkets hit 5.8–7.2% in Q4 2025. If you're seeing a marketed deal below 6% in those markets, push back on the assumptions or negotiate price.

How US Rental Returns Compare to Real Estate Investing in Israel

This is the calibration question that comes up constantly, and the answer reframes the entire US rental math.

Residential real estate in Israel — particularly Tel Aviv and the surrounding metro — has historically produced gross yields of 2–3.5% on purchase price. The appreciation story has been extraordinary, but the cash income on a property has been minimal. An investor buying in Tel Aviv at 30× annual rent is paying a 33 GRM; Florida mid-tier markets trade at GRMs of 11–14.

What this means practically: an Israeli investor used to seeing 2.5% gross yield might look at a Tampa property and assume 6% is aggressive marketing. It isn't — 6% is a real, achievable, conservative figure in secondary Florida markets, and 7%+ is available in the right submarkets.

The key differences in the underlying math:

• Property taxes: Israel has relatively low holding taxes; US property taxes typically run 1–2% of assessed value annually. This is a real cost that reduces net yield, but it's already baked into the cap rate calculations above.
• Financing access: Israeli investors purchasing US property typically use US lenders or foreign national loan programs. Current 30-year fixed rates at 6.85% apply — and that rate shapes CoC return dramatically.
• Currency diversification: Returns denominated in USD provide natural currency diversification against the shekel — a consideration that doesn't appear in any ROI formula but matters to any investor with shekel-denominated liabilities.
• Liquidity and transaction costs: US real estate transaction costs run 2–5% on the buy side; Israeli costs are comparable. Neither market offers quick liquidity, but US legal structures (LLCs, title insurance, escrow) provide investor protections that vary significantly from Israeli property law.

The practical upshot: if you've been conditioned to accept 2.5% gross yield as normal, the US market at 7–9% gross yield before expenses — netting to 5–6.5% after — looks genuinely attractive. The math holds up. The question is structuring the deal (entity type, financing, property management) correctly so the returns actually reach you.