FFO: The REIT Earnings Number That Isn't Earnings

Author : Quanta Val | Published On : 11 Nov 2026

Accounting says the building lost value this year. The rent roll, the resale market and the tenants all disagree.

Value a REIT on ordinary earnings and you will conclude, reliably and wrongly, that almost every property company is expensive. The reason is a single accounting convention: buildings are depreciated over decades as if they wear out like delivery vans, so a large non-cash charge is pushed through net income every year — even for well-kept properties that hold or gain value. Funds from operations is the industry's correction, defined by Nareit, the REIT industry body: take net income, add back real estate depreciation, and remove gains on property sales. What remains is meant to be the recurring earning power of the rent-collecting machine, and P/FFO — price divided by that figure — is the multiple REIT investors actually quote, playing the role P/E plays everywhere else.

FFO is honest about one thing and silent about another. It is honest that depreciation on buildings is mostly fiction. It is silent about the real money — tenant improvements, leasing commissions, roof and systems work — needed to keep those buildings leasable. That silence is corrected by its stricter sibling, AFFO; FFO is the starting point of REIT valuation, not the end of it.

The formula

FFO = Net income + real estate depreciation − gains on property sales
Fair value = FFO per share × peer median P/FFO

The subtraction deserves as much attention as the addition. A gain on selling a building is real cash but not repeatable income — leave it in and you capitalise a one-off event at a recurring-earnings multiple, the most expensive category of error in this sector. Peer selection is the second discipline: property types trade at structurally different levels — data-centre and net-lease REITs command multiples a mall owner will never see — so the peer set must be the same property type, and the median, not the average, keeps one unusually expensive REIT from pulling everyone's fair value up. Established REITs commonly trade between 12x and 20x FFO, growth sectors higher; and leverage still matters — two REITs with identical FFO deserve different multiples when one carries far more debt against the same buildings.

Worked example: Example Logistics Parks REIT

A hypothetical logistics-property REIT (every "Example" company in this series is invented for teaching):

Net income: $180M
+ Real estate depreciation: $260M
− Gains on property sales: −$25M
= FFO: $415M
÷ 125M shares: $3.32 per share
Peer P/FFO ratios: 13.5x, 14.5x, 15.5x, 16.0x, 18.0x
× Peer median P/FFO: 15.5x
= Fair value: $51.46 per share

Against a market price of $46.00, that is +11.9%. Now the contrast that explains why this metric exists. On reported earnings the same REIT shows $1.44 a share, so the market price is a P/E of 31.9x — growth-stock territory, an instant rejection for most value screens. On FFO the price is 13.9x against a 15.5x peer median: a modest discount on the sector's own yardstick. Both multiples are computed correctly; only one of them measures the business the REIT is actually in.

Sensitivity: the multiple does the heavy lifting

FFO growth −2%: 13.0x $42.30 / 15.5x $50.43 / 18.0x $58.56
0%: $43.16 / $51.46 / $59.76
+3%: $44.45 / $53.00 / $61.55
+6%: $45.75 / $54.55 / $63.35

Moving across the row — a few points of growth — changes fair value by dollars; moving down the columns changes it by tens. A two-turn disagreement about the right multiple swamps a realistic disagreement about growth, which is why peer selection, property type and leverage adjustments matter more than forecast precision in this method.

When FFO fails — and the cross-checks that catch it

FFO's blind spot is maintenance reality: it ignores the recurring capex that keeps buildings leasable, so heavy-capex REITs look cheaper than they are — AFFO subtracts that spend and the straight-line rent adjustments, and is the more conservative cash figure. Development-stage REITs invert the problem: little current income but real asset value, so judge them on NAV per share and P/NAV instead. And FFO is a property tool, full stop — for operating companies, earnings and cash-flow models are the appropriate instruments, starting with the DCF.

Ground the income view in the property view before concluding. The buildings' income is priced directly by the cap rate and the income capitalisation method; the balance sheet is marked by adjusted NAV and floored by liquidation value. The income investor's cross-check is the dividend yield — REIT payouts are anchored to these same cash figures, and the dividend discount model prices the stream — while the CapEx and FCF analysis sits behind both. The cash-flow family (EV/FCF, P/CF) and the revenue anchor P/S keep the multiple honest from other directions, the blended relative value weighs them together, the financial metrics expose leverage and coverage, and the reported statements behind every input live in the equity research terminal.

Try it yourself

QuantaVal is a quantitative valuation engine — 88 models in the Quantitative Valuation Engine (free calculator: 62) — and its Quantamental Investing AI explains the numbers in plain language. The free FFO calculator is one of the 62 free calculators: free to use immediately, no credit card — visitors get 3 shared calculations a day, resetting at midnight UTC, and the full methodology is free to read. Screen for REITs in the free screener (2,000+ stocks), rebuild their FFO from the statements — and strip the property-sale gains before the multiple ever sees them.

Example Logistics Parks REIT is hypothetical and used for teaching only. Figures are illustrative, not a forecast for any real company, and nothing here is investment advice.