Understanding cap rate vs cash on cash vs irr separates disciplined real estate investing from guesswork. Cap rate tells you what a property produces independent of financing. Cash-on-cash return shows how leverage shapes your annual yield. IRR captures the full value of a deal over time, including a projected sale event.
By David Pierce, MHG Commercial
What Cap Rate vs Cash on Cash vs IRR Each Measures
These three metrics answer different questions about the same deal. Cap rate is a snapshot of income relative to value, with no regard for how the property is financed. Cash-on-cash return reveals the real dollars flowing back to you each year against your invested equity. Internal rate of return captures a long-horizon view that accounts for every cash flow event and the eventual exit.
In commercial real estate, a deal that looks strong on cap rate can underperform on a cash-on-cash return basis if financing terms are unfavorable. Conversely, a low-cap-rate acquisition in a high-growth corridor can produce an exceptional rate return if rent growth and appreciation materialize as projected. None of these metrics works well in isolation.
Capitalization Rate: Pricing the Asset Independent of Debt
The capitalization rate, or cap rate, expresses the relationship between a property's net operating income and its current value or purchase price.
Cap rate = Net Operating Income NOI / Purchase Price
Because cap rate ignores debt entirely, it functions as a pure measure of asset performance. A stabilized industrial building in Gilbert trading at a 6.5% cap rate produces $6.50 in net operating income for every $100 of value. This makes cap rates a reliable tool for comparing properties across ownership structures, portfolio contexts, and financing scenarios.
Phoenix metro industrial cap rates compressed sharply between 2020 and 2023 as e-commerce demand drove vacancy to historic lows. Research from the National Council of Real Estate Investment Fiduciaries (NCREIF, 2024) confirmed that industrial cap rates in Sun Belt markets including Phoenix fell to cycle lows during this period before expanding modestly as borrowing costs rose. As of mid-2025, core Chandler and Tempe industrial submarkets show wider cap rates compared to the 2022 trough, creating better entry economics for buyers with longer hold horizons.
One limitation worth stating: cap rate reflects what a property produces today, not what repositioning or lease-up could produce. Value-add buyers should model the pro forma cap rate on stabilized net operating income, not current in-place income.
Cash-on-Cash Return: The Annual Yield After Debt Service
Cash-on-cash return measures how much annual pre-tax cash flow you receive relative to the equity you invested. It directly accounts for debt service, which cap rate ignores.
Cash-on-Cash Return = Annual Cash Flow / Total Equity Invested
If you invest $1.2 million in equity into a $5 million acquisition and the deal generates $90,000 in annual cash flow after all expenses and debt service, your cash-on-cash return is 7.5%.
This metric becomes most revealing in a high-rate environment. When borrowing costs rise, debt service increases, compressing annual cash flow even when net operating income NOI holds steady. Phoenix investors who acquired assets in 2021 with floating-rate bridge loans have experienced exactly this dynamic: stable income, lower cash-on-cash return due to higher debt service costs.
A rate cap is an interest rate protection instrument that borrowers purchase when using floating-rate loans. It limits the maximum rate the borrower pays, providing a floor for cash flow projections during periods of rising rates. Many lenders required rate caps on floating-rate commercial loans originated between 2021 and 2023, and those agreements expire on varying timelines, affecting current refinancing conditions across the Phoenix market.
Investors focused on real estate investing at the middle market level, deals between $2 million and $20 million, often weight cash-on-cash return heavily as a year-one performance benchmark. It requires no terminal assumptions and reflects actual distributed income.
IRR: Measuring Total Return Across the Full Hold Period
Internal rate of return captures what neither cap rate nor cash-on-cash return can: the time value of money across the full investment horizon.
IRR is the discount rate at which the net present value of all cash flows equals zero. In plain terms, it is the annualized rate return on invested capital across the life of the investment, including the exit.
A deal that generates modest annual cash flow but sells at a substantial gain in year five can produce an IRR well above what its cash-on-cash return suggested. Conversely, a deal that performs well annually but requires a distressed exit can produce a disappointing IRR despite solid in-place operating metrics.
IRR is the standard metric in institutional commercial real estate underwriting and is central to 1031 exchange analysis, where the timing and magnitude of deferred tax benefits factor into total return. Investors modeling a Phoenix multifamily acquisition or a Scottsdale retail center typically run IRR scenarios across multiple exit cap rate assumptions to stress-test the range of possible outcomes.
The limitation of IRR is that it requires forward-looking assumptions: projected rent growth, vacancy, expense inflation, exit cap rate, and hold period. Small differences in exit cap rate assumptions can produce dramatically different IRR outcomes, which is why underwriting discipline and submarket knowledge matter in Phoenix.
How Phoenix Market Conditions Shape Each Metric
Phoenix is one of the most active commercial real estate markets in the Southwest. Population growth, corporate relocations, and sustained industrial demand have maintained deal volume across multiple asset classes and submarkets.
Current conditions create specific dynamics for each metric:
Cap rates: Retail cap rates in established Phoenix corridors, particularly Chandler and Gilbert, remain compressed for well-tenanted centers with long-term lease structures. Industrial cap rates have widened from the 2022 trough, improving entry economics for patient capital. Both trends reflect the broader interest rate environment and its effect on how buyers underwrite net operating income relative to purchase price.
Cash-on-cash return: Debt service costs remain elevated relative to the 2020-to-2022 era. Buyers underwriting current acquisitions are modeling cash-on-cash returns in the 5% to 7% range on stabilized assets, compared to sub-5% levels during peak leverage years. Deals with assumable debt at below-market fixed rates command meaningful purchase price premiums as a result.
IRR: Phoenix's population trajectory and continued business formation support above-average rent growth projections, which benefit long-duration IRR modeling. Disciplined underwriters are widening exit cap rate assumptions to reflect genuine uncertainty in the interest rate environment over a five-to-seven-year hold.
Understanding which metric to prioritize depends on your investment profile. Income-focused investors who rely on consistent distributions weight cash-on-cash return most heavily. Value-add buyers targeting repositioning gains weight IRR. Buyers comparing asset quality across markets use cap rate as the common denominator for asset-level performance.
Frequently Asked Questions
What is the difference between cap rate and cash-on-cash return?
Cap rate measures a property's net operating income as a percentage of its value or purchase price, with no adjustment for financing. Cash-on-cash return measures how much annual cash flow an investor receives after paying debt service, expressed as a percentage of equity invested. A property can carry a strong cap rate and still produce a low cash-on-cash return if debt service costs are high or financing terms are unfavorable.
When should I rely on IRR instead of cap rate?
IRR becomes most relevant when value creation or appreciation is central to the investment thesis, such as in value-add acquisitions, ground-up development, or structured 1031 exchange planning across a multi-year hold. IRR accounts for all cash inflows and outflows across time, including the eventual sale and any deferred tax benefits, which cap rate alone cannot capture.
How does debt service affect my real estate metrics?
Debt service directly reduces annual cash flow, which lowers cash-on-cash return. Higher debt service can turn a strong-cap-rate deal into a marginal or negative-cash-flow situation, particularly in a high-rate environment. Rate cap agreements and fixed-rate financing structures provide more predictable cash flow projections for investors holding commercial assets over a multi-year hold period.
What cap rate range is realistic in Phoenix today?
Current cap rates vary significantly by asset class, submarket, and lease structure. Industrial and retail cap rates in the Phoenix metro differ across Chandler, Tempe, Gilbert, and Scottsdale and depend heavily on tenant credit quality and remaining lease term. Working with a broker active in your target submarket gives you the most current transaction comparables for sound underwriting.
How do these metrics apply to a 1031 exchange?
A 1031 exchange investor prioritizes income continuity and long-term IRR when selecting replacement properties. The replacement asset must generate sufficient net operating income NOI to support cash flow needs while delivering a competitive rate return over the intended hold. Cap rate helps identify appropriate replacement candidates by value. IRR analysis confirms whether the exchange structure serves the investor's overall portfolio goals.
Talk Through the Numbers with Pierce CRE
Cap rate vs cash on cash vs irr are not interchangeable, and no single metric captures the full picture of a commercial real estate acquisition. Aligning the right metric to your investment profile and strategy is the starting point for sound decisions across retail, industrial, land, and investment property in the Phoenix metro. Contact David Pierce at Pierce CRE to discuss how these metrics apply to current opportunities in Chandler, Tempe, Gilbert, and Scottsdale.