FFO and AFFO Explained: Essential REIT Valuation Metrics

Why FFO Matters for REIT Investors

Funds From Operations (FFO) is the gold standard metric for measuring REIT profitability. The National Association of Real Estate Investment Trusts (NAREIT) created this metric specifically because traditional earnings measurements are misleading for real estate companies.

The core issue is depreciation. Accounting rules require REITs to depreciate their buildings over 27.5-39 years, reducing reported earnings by significant amounts. But real estate typically appreciates over time, making depreciation a poor reflection of reality.

A REIT with $100 million in revenue might report net income of $20 million after $30 million in depreciation. FFO adds that depreciation back, showing $50 million in cash-generating ability. This more accurately represents the REIT's true profitability and capacity to pay dividends.

Virtually all REIT analysts, rating agencies, and institutional investors use FFO (and AFFO) as their primary valuation metrics.

Calculating FFO Step by Step

The NAREIT definition of FFO is:

FFO = Net Income + Depreciation & Amortization of Real Property + Impairment Charges - Gains on Property Sales + Losses on Property Sales.

Detailed example:

ABC REIT Annual Financial Data:

• Rental revenue: $120 million
• Operating expenses: $45 million
• Depreciation & amortization: $28 million
• Interest expense: $18 million
• Gain on sale of properties: $5 million
• Net income: $24 million
• Shares outstanding: 40 million

FFO calculation:

• Net income: $24M
• Add back depreciation: +$28M
• Remove gain on sale: -$5M
• FFO: $47M
• FFO per share: $47M / 40M = $1.175

Earnings per share: $24M / 40M = $0.60.

Notice the dramatic difference: EPS shows $0.60 while FFO shows $1.175. Using EPS would significantly understate this REIT's profitability and overstate its valuation.

Price-to-FFO valuation:

• Stock price: $18.00
• P/FFO: $18.00 / $1.175 = 15.3x
• P/E ratio: $18.00 / $0.60 = 30.0x

Using P/E makes this REIT look twice as expensive as it actually is. This is why P/FFO, not P/E, is the correct valuation metric for REITs.

Understanding AFFO

While FFO is widely used, it has a significant limitation: it does not account for the capital expenditures needed to maintain properties. A REIT must periodically replace roofs, HVAC systems, parking lots, and other capital items. These recurring costs reduce the cash available for dividends.

Adjusted Funds From Operations (AFFO) addresses this by subtracting maintenance capital expenditures from FFO.

AFFO calculation: AFFO = FFO - Maintenance CapEx - Straight-Line Rent Adjustments - Leasing Commissions.

Continuing our example:

• FFO: $47M
• Maintenance CapEx: $8M
• Straight-line rent adjustment: $2M
• Leasing commissions: $1M
• AFFO: $36M
• AFFO per share: $36M / 40M = $0.90

Dividend sustainability check:

• Annual dividend: $0.80/share
• FFO payout ratio: $0.80 / $1.175 = 68% (healthy)
• AFFO payout ratio: $0.80 / $0.90 = 89% (acceptable but tight)

The AFFO payout ratio gives a more conservative (and realistic) view of dividend sustainability.

Important note: Unlike FFO, AFFO has no standardized definition. Different REITs and analysts calculate AFFO differently. When comparing AFFO across companies, ensure you understand what adjustments each includes. Some REITs report "Core FFO" or "Normalized FFO" instead of AFFO, which may use different adjustments.

Using FFO and AFFO in Practice

For valuation:

• Compare P/FFO and P/AFFO ratios to sector peers
• Compare to the REIT's own historical range (5 and 10-year averages)
• A REIT trading below its historical P/FFO may be undervalued
• A REIT trading well above peers may be overvalued or may deserve a premium

For dividend analysis:

• AFFO payout ratio below 75%: Strong dividend coverage with room for growth
• 75-85%: Healthy coverage
• 85-95%: Adequate but limited room for increases
• Above 95%: Dividend may be at risk if conditions deteriorate

For growth assessment:

• Track FFO per share growth over 3, 5, and 10 years
• Consistent 3-5% annual FFO growth is solid for a REIT
• Compare to same-store NOI growth (organic) vs total FFO growth (includes acquisitions)

Practical tips:

• Most REITs report FFO and AFFO in their quarterly earnings releases
• Financial data providers (Yahoo Finance, Seeking Alpha, NAREIT) track FFO data
• REIT-specific research platforms provide detailed FFO analysis and peer comparisons

Master FFO and AFFO analysis, and you will be able to evaluate REIT investments more accurately than the majority of individual investors who rely on misleading earnings-based metrics.