Real Estate Tax Calc
What return on equity measures
Return on equity (ROE) for a rental property is your annual pre-tax cash flow divided by the current equity you hold in the property. It answers a simple but revealing question: of all the capital I have tied up in this property, how much is it earning each year?
Example: your rental generates $12,000 per year in pre-tax cash flow. You put in $80,000 originally, but the property has appreciated and you now have $250,000 in equity. Your ROE is $12,000 ÷ $250,000 = 4.8%. Meanwhile, comparable properties in the same market might offer an 8% cash-on-cash return to a fresh buyer with the same $250,000 as a down payment. Your trapped equity is underperforming.
Why ROE declines over time — and why that's not always bad
ROE on a rental naturally declines over a long hold for two reasons: (1) appreciation grows your equity without necessarily growing your cash flow proportionally, and (2) mortgage paydown reduces your debt while increasing equity, but doesn't increase rent. Both forces expand the denominator of the ROE fraction while the numerator (cash flow) grows more slowly.
This is not inherently a problem. Long-term property owners have often built enormous wealth through declining ROE — the wealth is in the equity. The question is whether that equity is working hard enough for you. If comparable opportunities offer higher returns than your current ROE, there is an opportunity cost to staying put.
Three strategies when ROE is too low
Cash-out refinance: Pull equity out and redeploy it into a higher-return investment. The pulled-out cash generates returns elsewhere; the rental continues at a slightly higher debt load. This works if the spread between your borrowing cost and the return on redeployed capital is positive.
1031 exchange: Sell the property and use all the proceeds (deferred from capital gains tax) to buy a larger or higher-yielding replacement property. The 1031 exchange preserves the equity in the new deal rather than paying capital gains tax. This is the cleanest way to "trade up" — but triggers depreciation recapture if not reinvested.
Hold and wait: If you are in a high-tax bracket and the equity is large, the tax cost of selling (capital gains plus depreciation recapture) might exceed the ROE drag for several more years. Model the after-tax ROE versus the after-tax proceeds from a sale before deciding to move.
Step by step: calculating your ROE the right way
The calculation is simple, but the inputs trip people up. Follow these steps: (1) Estimate your property's current fair market value — a broker price opinion or recent comparable sales, not what you paid. (2) Subtract your current loan balance to get your equity. (3) Calculate your annual pre-tax cash flow — gross rents minus operating expenses, minus your full mortgage payment (principal and interest), minus a realistic CapEx reserve. (4) Divide cash flow by equity.
Worked example: a property worth $400,000 with a $150,000 mortgage gives you $250,000 of equity. It rents for $30,000 a year; operating expenses, debt service, and reserves total $20,000, leaving $10,000 of pre-tax cash flow. Your ROE is $10,000 ÷ $250,000 = 4%. If a similar $250,000 down payment could buy a property yielding 8% cash-on-cash, your equity is earning half of what it could — a 4% opportunity cost on a quarter-million dollars, or roughly $10,000 a year of foregone return.
Cash-on-cash return vs. return on equity: don't confuse them
Cash-on-cash return measures cash flow against the cash you originally invested — your down payment and closing costs. It never changes as the property appreciates, because the denominator is fixed at your historical basis. Return on equity measures the same cash flow against your current equity, which grows over time. Early in a hold the two numbers are close; after years of appreciation and paydown, ROE falls well below the original cash-on-cash figure.
This gap is the whole point of the ROE analysis. A landlord who only tracks the original cash-on-cash return congratulates themselves on a great deal while a growing pile of dead equity earns almost nothing. ROE is the number that tells you when the deal that was great has quietly stopped being efficient.
Adding appreciation and paydown: total return on equity
The basic ROE above uses only cash flow, which understates the true return because it ignores two real sources of wealth: appreciation and principal paydown. A total-return version adds expected annual appreciation and the year's loan amortization to the numerator. On the $250,000-equity example, add $12,000 of expected appreciation (3% of a $400,000 value) and $4,000 of principal paydown to the $10,000 of cash flow, and total return on equity is $26,000 ÷ $250,000 = 10.4%.
Both versions are useful. Cash-flow ROE tells you what the property puts in your pocket today; total ROE tells you what your equity is earning including unrealized gains. The catch is that appreciation is a projection and paydown is illiquid — neither is spendable until you refinance or sell — so weight them accordingly rather than treating projected appreciation as if it were cash in hand.
The tax cost of unlocking equity is part of the decision
ROE analysis points you toward redeploying lazy equity, but the two main exits carry very different tax consequences. A cash-out refinance is not a taxable event — loan proceeds are not income — so you can pull equity out tax-free, though you add debt service and interest cost. A sale triggers capital gains tax on the appreciation plus depreciation recapture: the unrecaptured Section 1250 gain on all the depreciation you claimed is taxed at up to 25%, on top of long-term capital gains rates and possibly the 3.8% net investment income tax.
That recapture can make a sale far more expensive than the ROE drag suggests. A 1031 exchange defers both the capital gain and the recapture if you reinvest the full proceeds into like-kind property — which is why 'trading up' via 1031 is often the tax-efficient way to fix a low ROE, versus selling outright and handing a chunk of your equity to the IRS. Always run the after-tax comparison, not just the pre-tax ROE.
Common mistakes when using ROE to make decisions
Using purchase price instead of current value. ROE is forward-looking; it must use today's fair market value for equity, not what you paid years ago.
Ignoring transaction and tax costs. Selling costs 6–8% in commissions and fees, plus capital gains and recapture. A 3% ROE improvement can be swallowed whole by the friction of moving the money.
Chasing a higher ROE into a worse asset. A higher yield often comes with more risk, more management, or a declining neighborhood. ROE is one input, not the whole decision.
Forgetting that low ROE means high equity. A declining ROE is frequently a sign of success — you've built substantial wealth in the property. The question is only whether that wealth is working efficiently, not whether the investment was a mistake.
How often to run the ROE check
ROE is not a one-time calculation — it drifts every year as values rise and loans amortize. A practical discipline is to recompute it annually, using a fresh estimate of market value and your current loan balance, and to compare the result against a realistic alternative return: what a new deal, a paydown of higher-cost debt, or a passive investment could earn on the same equity.
A single low reading is not a sell signal; a trend of ROE falling well below your available alternatives, year after year, is the pattern that justifies action. When you see that trend, run the full after-tax comparison — cash-out refinance, 1031 exchange, or sale — before deciding. The annual check keeps trapped equity visible so it never quietly sits at a 3% return for a decade while better options go unnoticed.
Frequently asked questions
What is a good return on equity for a rental property?
There is no universal benchmark — it depends on your alternatives. If comparable properties offer 8% cash-on-cash and your rental's ROE is 4%, your equity is underperforming by that spread.
How do I calculate return on equity on my rental?
Divide annual pre-tax cash flow by the current fair market value of your equity (property value minus outstanding loan balance). Compare it to what you could earn by redeploying that equity.
Does return on equity account for appreciation?
Standard ROE calculations use only cash flow in the numerator — not appreciation. A total return version adds expected appreciation, but that is unrealized until you sell.
What is the difference between cash-on-cash return and return on equity?
Cash-on-cash return divides cash flow by the cash you originally invested (a fixed number). Return on equity divides the same cash flow by your current equity, which grows over time — so ROE falls below the original cash-on-cash return as the property appreciates and the loan pays down.
Is a cash-out refinance a taxable way to unlock equity?
No. Loan proceeds are not taxable income, so a cash-out refinance lets you redeploy equity tax-free — though you take on additional debt service. A sale, by contrast, triggers capital gains tax and depreciation recapture.
Does a declining ROE mean I made a bad investment?
Usually the opposite. ROE declines mainly because appreciation and mortgage paydown have built up your equity. The investment succeeded — the only question is whether that accumulated equity is now working hard enough or should be redeployed.
How can I improve a low ROE without a big tax bill?
A cash-out refinance pulls equity out tax-free, and a 1031 exchange lets you sell and reinvest while deferring both capital gains and depreciation recapture. Selling outright is the most tax-expensive option because recapture is taxed at up to 25%.
Sources
- IRS — Like-Kind Exchanges (Real Estate Tax Tips)
- IRS — About Form 8824
- IRS Publication 527 — Residential Rental Property
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.