Cash-on-cash return, and why leverage flatters it

Cash-on-cash return is annual pre-tax cash flow divided by total cash invested. If you put in $80,000 and the property throws off $6,400 a year after everything including the mortgage, that is eight percent.

It answers the question cap rate cannot: what do my actual dollars earn?

It also has a property worth understanding clearly, which is that adding debt usually increases it, right up until the point where the whole thing fails.

Getting the denominator right

Total cash invested is not the down payment. It is everything that left your account to get the property producing.

Down payment. Closing costs — origination, appraisal, title, recording, attorney, inspection. Immediate repairs. Any capital work needed before it will rent. Initial reserves. Lease-up costs if it is vacant. Carrying costs during the work.

Investors who use only the down payment routinely overstate their returns by a quarter or more.

Getting the numerator right

Annual cash flow means after everything that actually leaves the account.

Rent, less vacancy, less all operating expenses, less debt service, less capital reserves.

That last item is where reported returns and real returns diverge. A property that shows twelve percent before reserves and six percent after them is a six percent property. The roof does not care what you put in the spreadsheet.

How leverage does its work

Suppose a property produces $10,000 of NOI and costs $150,000.

All cash: $10,000 on $150,000, near enough seven percent, ignoring closing costs.

With a loan of $112,500 at six and a half percent over thirty years, debt service is about $8,530. Cash flow drops to roughly $1,470, but invested cash drops to $37,500. That is about four percent — lower, because the borrowing rate exceeds the unlevered return.

Now suppose the same property produces $13,500 of NOI. Unlevered: nine percent. Levered: $4,970 on $37,500, over thirteen percent.

That is the whole mechanism. When the unlevered return exceeds the cost of debt, leverage magnifies the return. When it does not, leverage destroys it.

This is called positive and negative leverage, and it is worth checking on every deal by asking a single question: is my unlevered yield higher than my interest rate?

For a long stretch of the 2010s the answer was almost always yes. It has not reliably been yes since.

The part the number hides

Leverage magnifies losses on exactly the same arithmetic.

Take the second example. If NOI falls twenty percent — a bad year, a soft market, two long vacancies — it drops to $10,800. Debt service is unchanged at $8,530. Cash flow falls from $4,970 to $2,270, a fifty-four percent decline from a twenty percent revenue decline.

Push the decline a little further and cash flow goes negative, which means you are funding the property out of income rather than the reverse.

A highly levered deal with a strong cash-on-cash number is not a better deal than a modestly levered one with a weaker number. It is a more volatile one, and the metric does not tell you that.

What the number leaves out entirely

Principal paydown. Part of every mortgage payment builds equity. It is a real return and it does not appear in cash flow.

Appreciation. Which may be substantial, may be zero, and is entirely a forecast.

Tax effects. Depreciation can shelter a meaningful portion of the cash flow, changing the after-tax picture considerably.

Time. Cash-on-cash is a snapshot of one year. It says nothing about year seven, when the loan resets or the rent roll has moved.

Reasonable expectations

People ask what a good cash-on-cash return is, and the honest answer depends on rates, market and risk.

Any target should start from what is available without the work and without the risk. If a money-market account yields four percent, an eight percent return on an illiquid, management-intensive, leveraged asset is not obviously generous.

The premium you require is compensation for illiquidity, concentration, operational effort and the possibility of a bad year. Whether the deal clears that bar is a judgment, not a formula.

The habit worth keeping

Run the number twice. Once at your base case, and once with rent down ten percent and vacancy up.

The first tells you what the deal earns. The second tells you what it does when the assumptions are wrong, which is the more informative number.

General information about real estate analysis, not investment, tax or legal advice. Leverage increases both returns and risk of loss. Consult qualified professionals about your own circumstances.