Prepared by Pillar Private Lending
Investor Resources
Two metrics, two different questions
Cap rate answers how much net operating income a property produces relative to its price or value. Cash-on-cash return answers how much annual cash flow the equity investment produces after debt service.
Cap rate is a property-level, unlevered income yield. Cash-on-cash is an investor-level, levered cash yield for a defined period. Mixing them creates false conclusions about “good deals.”
Core formulas
Cap rate = NOI ÷ purchase price (or value). Cash-on-cash = annual cash flow ÷ cash invested, where annual cash flow is typically NOI minus annual debt service.
Because cash-on-cash includes financing, two buyers of the same property can report very different cash-on-cash results while sharing the same going-in cap rate.
| Metric | Includes debt service? | Primary use |
|---|---|---|
| Cap rate | No | Compare property income yield / value |
| Cash-on-cash | Yes | Measure equity cash yield after financing |
| DSCR | Yes (as denominator) | Test income coverage of debt service |
Why the metrics diverge
Leverage, interest rate, amortization, interest-only periods, fees financed or paid in cash, and total cash invested all move cash-on-cash without changing NOI or cap rate. Higher leverage can raise or lower cash-on-cash depending on whether the property’s income yield exceeds the cost and structure of debt.
Operating assumptions also matter. An aggressive NOI can inflate both metrics; understated repairs, vacancy, or payroll can hide fragility that appears only after closing.
Illustrative side-by-side
The example below is illustrative only and is not a Pillar quote or financing offer.
Worked example
Same NOI, different equity returns
Assume NOI of $240,000 on a $4,000,000 purchase (6.0% cap rate). Buyer A uses more equity and lower annual debt service; Buyer B uses less equity and higher annual debt service.
- 1Shared going-in cap rate: $240,000 ÷ $4,000,000 = 6.0%
- 2Buyer A: annual debt service $150,000; cash invested $1,400,000 → cash flow $90,000 → cash-on-cash ≈ 6.4%
- 3Buyer B: annual debt service $190,000; cash invested $900,000 → cash flow $50,000 → cash-on-cash ≈ 5.6%
Both buyers see the same 6.0% cap rate. Cash-on-cash differs because leverage and debt service differ—illustrating why financing cannot be ignored when comparing equity returns.
Use both metrics in acquisition underwriting
Start with normalized NOI and the implied going-in cap rate to judge whether the price is supported by income. Then layer financing to estimate cash flow and cash-on-cash under the structure you actually expect to close.
If the cap rate looks acceptable but cash-on-cash collapses under realistic debt service, the issue is leverage or cost of capital—not necessarily the asset’s unlevered yield.
- Normalize NOI before calculating either metric
- State the NOI period (trailing, T-12, forward, stabilized)
- Document cash invested: equity, closing costs, immediate capex
- Stress rent, vacancy, expenses, and rate simultaneously
Value-add plans and exit thinking
Value-add investors should show current and stabilized NOI separately. A projected cash-on-cash that depends on unfinished renovations and lease-up is a business-plan metric, not a current yield.
At exit, cap rate assumptions affect resale proceeds, while cash-on-cash during the hold reflects interim financing. Keep those lenses labeled so appreciation, income growth, and leverage effects remain visible.
Model the property, then the loan
Use the cap rate calculator to connect NOI and value. Use the rental cash-flow analyzer when you need operating expenses, debt service, cash-on-cash, and DSCR in one planning view.
Financing eligibility still depends on the lender’s income methodology, leverage limits, reserves, and property condition—metrics alone do not equal approval.
NOI period discipline before either metric
Cap rate and cash-on-cash are only as reliable as the NOI period behind them. Trailing twelve-month, annualized current, forward lease-up, and stabilized pro forma figures can produce very different yields on the same asset.
When comparing offerings, insist on the same NOI definition and the same treatment of vacancy, concessions, and non-recurring items. A compressed cap rate on aggressive forward NOI is not comparable to a going-in cap rate on trailing in-place income.
- Label NOI as trailing, T-12, annualized, or stabilized
- Remove or footnote one-time income and expenses
- State whether management is market or owner-operated
- Keep seller claims separate from your underwritten NOI
Interest-only periods, fees, and cash invested
An interest-only period can raise near-term cash-on-cash by lowering annual debt service while leaving the going-in cap rate unchanged. Origination points, lender fees, and buyer closing costs paid in cash increase cash invested and can reduce cash-on-cash even when NOI is unchanged.
Financing fees that are rolled into the loan may preserve cash at closing but raise the balance and future debt service. Track both effects explicitly so equity yield is not confused with free leverage.
Lender ratios versus investor yield metrics
Lenders may emphasize DSCR, LTV, reserves, or other coverage tests that do not equal an investor’s target cash-on-cash. A file can clear a program’s minimum DSCR while still producing a cash-on-cash result below the investor’s hurdle after full operating assumptions.
Use cap rate to judge whether price is supported by income, cash-on-cash to judge equity return under a specific loan, and lender ratios to judge financing eligibility. Treat each as a different decision tool rather than interchangeable synonyms for “deal quality.”
This guide is educational and is not individualized financial, legal, tax, or investment advice. Exact requirements and terms vary by lender, property, borrower, and transaction.
Discuss the actual transaction
Move from research to a deal-specific review
Educational examples are useful for planning. Actual eligibility, structure, and terms depend on the property, borrower, lender, and transaction.