What is cash-on-cash return?

Cash-on-cash return (CoC) is a rental property metric that compares how much cash you put into a deal to how much cash you get back each year (from operations). It focuses on actual dollars invested rather than the total property value. That’s why it’s especially useful when you finance with a mortgage.

Cash-on-cash return (%) = (Annual pre-tax cash flow ÷ Total cash invested) × 100.

Start with your monthly rent and any extra income (laundry, parking, storage, pet rent). Then account for vacancy. If your vacancy assumption is 5%, that means you expect to collect about 95% of potential rent over time.

• Gross monthly income = rent + other income
• Effective gross income = gross income × (1 − vacancy%)

Next, subtract operating expenses to get Net Operating Income (NOI). NOI includes costs to run the property before the mortgage: taxes, insurance, HOA, utilities (if you pay them), landscaping, pest control, and similar recurring costs. Many investors also budget for “lumpy” costs using reserves.

• Fixed monthly expenses are entered as one number (tax + insurance + HOA + utilities, etc.).
• Management % is applied to effective gross income (because managers usually charge a % of collected rent).
• Maintenance reserve % and CapEx reserve % are optional buffers for repairs and big replacements.
• NOI (monthly) = effective gross income − operating expenses

If you use financing, the mortgage payment reduces the cash you take home. This calculator uses a standard amortizing loan payment (principal + interest). (Note: it does not include escrowed tax/insurance unless you include them in fixed expenses.)

• Monthly cash flow = NOI − monthly mortgage payment
• Annual cash flow = monthly cash flow × 12

Total cash invested is the money you put into the deal that actually leaves your bank account. For most rentals, that includes:

• Down payment (based on your slider)
• Closing costs (loan fees, title, escrow, etc.)
• Repairs/rehab (initial improvements to make the unit rentable)
• Initial reserves (optional safety buffer)

Finally, divide annual cash flow by total cash invested. That number is your CoC return. If your annual cash flow is negative, your CoC will also be negative — a signal that the deal may require re-pricing, better rent, lower expenses, or different financing to work.

Worked example (with realistic assumptions)

Let’s walk through the default values in the calculator (you can copy these into your own analysis):

• Purchase price: $350,000
• Down payment: 20% → $70,000
• Closing costs: $8,000
• Rehab: $5,000
• Cash reserves: $2,000
• Rent: $2,500/mo, vacancy 5%
• Fixed expenses: $650/mo
• Management: 8%, Maintenance: 5%, CapEx: 5%
• Loan: 6.75% for 30 years

First, gross income is $2,500/month. With 5% vacancy, effective gross income becomes $2,375/month. Then we budget operating costs: fixed expenses ($650) plus percentage-based reserves and management applied to $2,375. After subtracting those operating costs, we get monthly NOI. Next we subtract the monthly mortgage payment calculated from the loan amount ($280,000).

The result is a monthly cash flow figure. Multiply by 12 to get annual cash flow. Total cash invested is down payment + closing + rehab + reserves: $70,000 + $8,000 + $5,000 + $2,000 = $85,000. CoC return is annual cash flow divided by $85,000.

Now try this: drag the vacancy slider to 10% and CapEx to 10%. Many deals that look “great” at 0–5% vacancy fall apart when you treat vacancy, maintenance, and CapEx as real recurring costs. The best deals still cash flow after the stress test.

Practical investor workflow

If you’re screening multiple properties, cash-on-cash return is a quick filter. Here’s a simple workflow:

• 1) Start conservative. Use higher vacancy (5–10%) and include reserves.
• 2) Enter your real financing. Rate and term change cash flow dramatically.
• 3) Tune expenses. Taxes and insurance are often higher than you guess.
• 4) Stress test rent. Reduce rent by 5–10% and see if you’re still okay.
• 5) Compare deals apples-to-apples. Same vacancy + reserve assumptions across properties.

CoC targets depend on market, strategy, and risk tolerance. In many high-demand markets, stable deals may have lower CoC but higher appreciation potential. In cash-flow markets, investors may demand higher CoC because appreciation is less certain.

• 0–4%: Low cash yield (could still be okay if appreciation or principal paydown is your thesis).
• 5–9%: Often considered “decent” for stable, financed rentals (depends on area and era).
• 10–14%: Strong cash yield, but verify your inputs — especially expenses and vacancy.
• 15%+: Usually higher risk, higher leverage, or a value-add deal (or unrealistic assumptions).

Pro tip: if your CoC looks “too good,” it often means you’re missing a cost (taxes, insurance, maintenance, CapEx, or vacancy) — or you’re assuming rent that the market won’t support.

CoC is intentionally simple. It’s designed to answer the “cash yield” question fast. But a full underwriting model may include:

• Appreciation (property value growth)
• Principal paydown (equity growth from paying down the loan)
• Tax impacts (depreciation, deductions, passive activity rules)
• Refinance scenarios (cash-out refi, rate changes)
• Exit assumptions (selling costs, market cycles)

If you want one “next step” metric, pair CoC with Cap Rate (NOI ÷ price). Cap rate ignores financing, while CoC reflects your financing and cash invested. Together they give a more complete picture.

Frequently Asked Questions

• Is cash-on-cash return the same as ROI?

  Not exactly. CoC focuses on cash invested and cash flow from operations. ROI is a broader term that might include appreciation, equity buildup, and sale proceeds.

• Does this include appreciation?

  No. Cash-on-cash return is typically a cash flow metric. Appreciation and principal paydown can be major drivers of total return, but they’re separate from CoC.

• Should I include maintenance and CapEx as percentages?

  Many investors do. Some prefer fixed dollar budgets instead. Percent reserves are a simple, fast way to model long-term reality: things break, and big replacements happen. If your property is newer (or recently renovated), you might use lower percentages at first — but don’t pretend they’re zero forever.

• Why apply management to “effective” rent?

  Property managers usually charge a percentage of collected rent, not advertised rent. Applying it after vacancy keeps assumptions consistent.

• My cash flow is negative — is that always bad?

  Not always, but it’s a warning sign. Some investors accept negative cash flow if they strongly believe in appreciation, they’re house-hacking, or they have other strategic reasons. For pure rentals, negative cash flow increases risk because the property requires ongoing cash support.

• What should I put for vacancy?

  A common range is 5–10%, but it depends on unit type, tenant quality, seasonality, and your market. If you’re unsure, start with 8–10% and see whether the deal still works.

• Is this pre-tax or after-tax?

  This calculator is pre-tax. Tax impacts vary widely by location, filing status, and strategy. Use this as a first-pass deal screen, then consult a tax professional for after-tax analysis.

• Should I include property taxes and insurance in fixed expenses?

  Yes. If your mortgage payment includes escrow, you can still include them here for a complete operating view — or set this number to cover whatever expenses you (as the owner) pay monthly. Just be consistent.

• What’s a “good” cash-on-cash return?

  It depends on the market and your goals. In some cities, stable rentals may yield lower CoC but offer stronger appreciation. In others, investors target higher CoC because price growth is slower. Use the sliders to compare deals with the same assumptions so you’re not fooled by optimism.