Cash on Cash Return vs Return on Equity: Why One Stays Put and One Falls

Cash on cash return and return on equity measure the same cash flow against two different piles of money. Cash on cash divides your annual cash flow by the cash you put in at the start. Return on equity divides it by the equity sitting in the property today. One denominator never changes. The other grows every month you own the place, which is why the same rental can post a flat cash on cash return and a sinking return on equity at once.

Two numbers, two different denominators

Cash on cash return is annual cash flow divided by cash invested. Return on equity is annual cash flow divided by current equity, where equity is market value minus the loan balance.

Cash invested is history. It is what left your account: down payment, closing costs, rehab. That number is set on the day you close and it stays set for as long as you own the property. Current equity is a live figure. It moves with the loan balance and with what the property is worth.

If you came here looking for cash on cash versus ROCE, return on capital employed is a corporate measure: operating profit over all the capital in a business, debt and equity together. The property version of that idea is closer to cap rate or return on assets, since both ignore how the purchase was financed.

Why one denominator is frozen and the other moves

Two forces push equity up. The loan balance falls with every payment, and the property may be worth more than you paid.

Neither one touches your cash on cash return. In the simple tab, $12,000 of annual cash flow on $150,000 invested is 8%, and it stays 8% whether the property is worth $400,000 or $900,000. That is the point of the number and also its limit. Cash on cash has a short list of blind spots, and this is the biggest one.

The same rental in year one and year ten

Take the site’s example: a $500,000 rental renting for $5,200 a month, with $10,000 of rehab, $6,000 of property taxes and $2,400 of insurance. Net operating income is $40,210, an 8.0% cap rate. With 25% down at 7.25%, the $375,000 loan costs $30,698 a year, cash flow is $9,512, and cash invested is $150,000. Cash on cash is 6.3%.

Equity at closing is $125,000, just the down payment. The $15,000 of closing costs and the $10,000 of rehab left your account without becoming equity, so return on equity starts at 7.6%, above the cash on cash return. After a year of payments the balance is about $371,400 and equity is about $128,600. Return on equity is 7.4%.

Now run it ten years with nothing else changing. The balance drops to roughly $323,700. If the property is still worth $500,000, equity is about $176,300, and the same $9,512 of cash flow is a 5.4% return on it. Cash on cash still reads 6.3%.

Add value growth and the split gets wider. Nobody knows what your market will do, so pick a figure and call it an assumption. At 3% a year for both value and net operating income, the property is worth about $672,000, the balance is $323,700, and equity is about $348,300. Cash flow has grown to about $23,300. Cash on cash now reads 15.6%, which looks terrific. Return on equity reads 6.7%, down from 7.4%.

Same property. One number says the deal got much better. The other says the money inside it is working less hard than it did in year one.

What a falling return on equity should prompt you to do

A low return on equity is a question, not a verdict. Four honest responses:

Do nothing. Equity is also safety. A property at 48% loan to value absorbs a long vacancy or a new roof in a way a property at 80% cannot, and plenty of owners accept a lower return for that.

Pull some equity out. A cash-out refinance resets the denominator by turning equity into cash you can put to work. The cost is a larger payment and thinner cash flow, and at current rates that trade often fails on its own terms.

Sell and redeploy. Compare the after-tax proceeds against the return you expect on the next deal. Selling costs and taxes take a real bite, so the replacement has to clear a higher bar than a raw side by side suggests.

Raise the numerator instead. Rent increases, expense cuts and tighter management lift cash flow without touching equity, and they lift both numbers at the same time.

Which number belongs in a hold or sell decision

Return on equity, with two cautions.

First, cash flow alone understates what a held property hands you. Fuller versions of the ratio add principal paydown and the year’s change in value to the numerator, a mix of return of capital and paper gain. Add those to the example rental and the figure looks much healthier, so be clear about which version you are quoting.

Second, return on equity is a one-year snapshot, same as cash on cash. If the decision hangs on several years of rent growth, a sale and the tax bill at the end, internal rate of return is the right tool.

A good habit is to check return on equity once a year on everything you hold. When it slips below what you would accept on a fresh purchase, that is the signal to start pricing alternatives.

Run the numbers on your own rental

The cash on cash return calculator gives you the annual cash flow, the cash invested and the cash on cash return for your deal. Keep the cash flow figure, swap your current equity in for cash invested, and you have this year’s return on equity.