Cost of Capital for REITs and How It Affects Growth

A REIT’s cost of capital is the blended cost of debt and equity financing; when a REIT issues new shares at prices below net asset value (NAV), the cost of equity rises, making acquisitions and growth less accretive, and the REIT may choose to conserve capital rather than grow by issuing dilutive equity.

The Fundamental Trade-Off: Debt vs. Equity

Every REIT finances its acquisitions and operations with some combination of debt and equity. Debt is cheaper (lower interest rates than equity returns), but it increases financial risk and limits borrowing capacity. Equity is more expensive (shareholders demand higher returns), but it is safer and can be raised without constraint.

The weighted average cost of capital (WACC) is the blended rate:

WACC = (E/V × Cost of Equity) + (D/V × Cost of Debt × (1 − Tax Rate))

Where:

• E = market value of equity
• D = market value of debt
• V = E + D

Example: A REIT with $50 billion in equity and $30 billion in debt, cost of equity of 8%, and cost of debt of 4% (after tax):

• WACC = ($50/$80 × 8%) + ($30/$80 × 4%) = 5% + 1.5% = 6.5%

This 6.5% WACC is the minimum return the REIT must earn on new capital deployment to satisfy both creditors and shareholders.

Why NAV Discount Raises the Cost of Equity

When a REIT trades at a premium to NAV (meaning the share price is above the calculated per-share value of assets minus liabilities), equity issuance is attractive and accretive. The REIT can sell new shares at prices above intrinsic value, use the proceeds to acquire properties, and create value for existing shareholders.

When a REIT trades at a discount to NAV, the opposite occurs. If a REIT’s NAV is $25 per share but the stock trades at $22, issuing new equity at $22 is dilutive. The company is selling assets (in the form of equity stakes) below their intrinsic worth.

This discount raises the cost of equity in the finance sense: to make an acquisition accretive using equity issued at $22 per share, the REIT must acquire properties that generate higher returns than if it could issue at $25. The discount widens the hurdle rate.

Numerical example: A REIT with NAV of $25/share and current stock price of $22/share wants to acquire a property generating 6% returns (a cap rate of 6%).

• If equity were trading at NAV ($25): acquiring at 6% cap rate would be slightly dilutive (cost of equity ~8%), but perhaps acceptable given management conviction.
• At $22 (12% discount): the same 6% cap rate property is very dilutive. Management will demand a higher return (e.g., 7%+ cap rate) to justify the equity issuance.

As NAV discounts widen, the threshold for profitable acquisitions rises, and the REIT may stop growing and focus instead on buying back shares or reducing leverage.

Accretion and Growth Strategy

An acquisition is accretive if it increases per-share value; it is dilutive if it decreases it. Accretion depends on the relationship between the acquisition cap rate (the property’s expected return) and the REIT’s cost of capital.

If a REIT can acquire a property at a 5.5% cap rate and its WACC is 5%, the acquisition is accretive by 50 basis points. If the property cap rate is 5% and WACC is 5%, the acquisition is neutral (neither creates nor destroys value per share).

When a REIT trades at a NAV discount:

• Cost of equity rises.
• WACC rises (all else equal).
• The acquisition hurdle rate rises.
• Fewer properties meet the accretion threshold.
• Growth slows or stops.

This dynamic explains why REITs trading at steep NAV discounts often curtail acquisitions, focus on internal growth (rent increases, value-add repositioning), or return capital via buybacks. Issuing equity at a discount is economically irrational unless the acquisition yield far exceeds the cost of equity.

Debt Capacity and Financial Flexibility

A REIT’s ability to issue debt is constrained by leverage ratios (typically debt-to-EBITDA or loan-to-value limits imposed by lenders and rating agencies). A REIT with 60% leverage has less headroom to borrow than one with 40% leverage.

When leverage is high, the REIT must finance growth with equity or retain cash from operations. Higher leverage also raises the cost of debt: lenders charge higher spreads when a REIT is already highly leveraged. This further raises WACC.

A NAV discount can trap a REIT in a bind: it cannot issue cheap equity (equity is expensive at a discount), and issuing more debt to avoid dilution may breach covenant thresholds or raise borrowing costs.

Strategic response: Many discounted REITs focus on dividend sustainability and balance sheet management rather than growth. They reduce acquisitions, cut leverage, and potentially reduce dividends to preserve cash—all defensive moves when equity is cheap relative to intrinsic value.

The Spread Between Cap Rate and Cost of Capital

The cap rate spread (acquisition cap rate minus WACC) is a key driver of REIT valuation and growth rates:

• Wide spread (cap rates > WACC): REITs can grow profitably; high spreads often reflect strong demand for properties or low interest rates.
• Narrow spread (cap rate ≈ WACC): Growth is minimally accretive; REITs may prefer to focus on dividend or buybacks.
• Negative spread (cap rate < WACC): Growth is highly dilutive; REITs will avoid acquisitions.

In low-interest-rate environments (2010–2021), cap rate spreads were often negative, as property yields fell below the long-term cost of equity. REITs had to be selective about acquisitions or rely on operational improvements (rent growth) rather than external growth.

In higher-rate environments, cap rate spreads widen, making external growth more accretive, and REITs return to acquisition mode.

NAV Discount as a Valuation Signal

A persistent REIT NAV discount signals market skepticism about:

• The REIT’s ability to deploy capital accretively.
• Asset quality or valuation reliability (the NAV may overstate value).
• Management execution or capital allocation.
• Sector headwinds (e.g., retail REITs facing structural decline, or office REITs during remote work transition).

Investors and analysts interpret a 10%+ NAV discount as a “value trap” signal: equity is cheap for a reason, and the REIT may not be able to grow out of the discount by simply issuing equity and buying assets. The path to premium valuation typically requires:

• Organic FFO growth (rent increases, operational improvement).
• Reduction in financial risk (leverage reduction).
• Strategic repositioning of assets (selling weak properties, acquiring strong ones).
• Multiple expansion (market re-rating of the REIT as risk outlook improves).

Pure external growth (acquisitions funded by equity issuance at a discount) usually widens the discount further, as it is economically destructive.

Cost of Capital and Dividend Policy

A REIT’s dividend policy is also influenced by cost of capital. If a REIT’s cost of equity (required return to shareholders) is 8%, and the REIT’s FFO yield is 5% (dividend yield), the REIT must grow FFO at roughly 3% annually to deliver the full 8% return. If growth prospects are weak, the cost of equity may fall (as investors accept lower return expectations), lowering the REIT’s WACC and potentially improving acquisition accretion.

Conversely, if growth prospects are strong and capital is deployed at high returns, cost of equity may rise (investors demand higher return for higher risk), raising WACC and the hurdle for acquisitions.

See also