Debt Yield, Break-Even Occupancy, and Lender Risk Metrics

There's underwriting from the equity side (will I make money?) and underwriting from the debt side (will the lender lend to me?). Both matter, but most beginners only think about the equity side. The result: deals that look great on paper get rejected by lenders, or get approved with terms so harsh they kill the equity returns.

This lesson teaches you to underwrite the way lenders underwrite — using debt yield, break-even occupancy, and DSCR — so you know whether your deal will get financed before you put it under contract.

Why lender metrics matter to the equity investor

Three reasons:

1. You can't close without debt. Most CRE deals are 60-75% leveraged. If the lender won't fund the loan you're assuming, the deal dies — full stop.
2. Lender metrics constrain leverage. A lender might cap your loan at $1.6M not because of your LTV request but because that's the largest loan the property's NOI can support at the required DSCR. This is loan sizing — and it changes your equity check materially.
3. Lender metrics are red flags. When a deal can support the loan you want but only barely (DSCR 1.20, debt yield 9%), the lender is telling you something: this deal has thin margins. Pay attention.

The discipline is: run your deal through the lender's eyes BEFORE you sign the LOI. If your numbers don't clear lender thresholds, change your offer or walk away.

Debt yield (the most important metric you've never heard of)

Definition: Debt yield = NOI ÷ Loan amount

It's the inverse of the loan's "purchase cap rate" — it tells the lender what cash-on-cash return their loan dollars would earn if they had to take the property back.

Example

• NOI: $180,000
• Loan amount: $1,800,000
• Debt yield: $180,000 / $1,800,000 = 10.0%

A 10% debt yield means: if the lender foreclosed and operated the building, the NOI would generate a 10% yield on their loan principal. That's their downside protection.

Why lenders love it

Debt yield is immune to manipulation by interest rates and amortization periods. DSCR can be gamed: stretch the amortization from 25 years to 30 years and DSCR magically improves even though nothing about the deal got safer. Lower the interest rate (bridge loans love to do this with teaser rates) and DSCR looks fine until the loan resets.

Debt yield doesn't move with any of that. It only moves with NOI and loan amount. It's the cleanest possible measure of "how much income is supporting each dollar of debt."

Typical lender minimums

| Lender type | Minimum debt yield | |---|---| | Life company / agency (most conservative) | 9.0-10.0% | | CMBS | 8.0-9.0% | | Bank (regional) | 8.5-10.0% | | Bridge lender | 7.0-8.0% (riskier) | | HUD/FHA multifamily | 7.0-8.0% |

If your deal can't clear an 8% debt yield at the loan amount you want, most senior lenders will reduce the loan size until it does.

Loan sizing using debt yield

Reverse the formula: Maximum loan = NOI ÷ Required debt yield

Example. NOI is $180K. The lender requires a 10% minimum debt yield.

Max loan = $180,000 / 0.10 = $1,800,000

If you wanted to borrow $2.0M against this NOI, the lender will say no — at $2.0M, the debt yield is only 9%, below their threshold. You'd need to bring more equity, lower the purchase price, or grow NOI before they'll fund.

This is the single biggest reason deals get re-traded. The buyer thought they could borrow 75% LTV; the lender's debt-yield test caps them at 65%; suddenly the buyer needs $400K more equity than expected.

Break-even occupancy (the operational floor)

Definition: Break-even occupancy = (OpEx + Debt service) ÷ Gross potential rent

It's the occupancy level at which the property generates exactly enough income to cover operating expenses and debt service — zero cash flow, zero loss.

Example

• Gross potential rent: $300,000
• Operating expenses: $90,000
• Annual debt service (P&I): $130,000
• Break-even occupancy = ($90,000 + $130,000) / $300,000 = $220,000 / $300,000 = 73.3%

This means: if occupancy drops below 73.3%, the property loses money. Above 73.3%, it generates positive cash flow.

How to interpret it

Compare break-even occupancy to the market vacancy rate:

• Market vacancy 5%, break-even occupancy 73% → 22 percentage points of cushion. Robust deal.
• Market vacancy 10%, break-even occupancy 88% → 2 percentage points of cushion. Fragile deal.
• Market vacancy 8%, break-even occupancy 95% → No cushion. Any blip in occupancy puts you underwater.

A good deal has break-even occupancy at least 10-15 percentage points below current market occupancy. If the property is 95% occupied and your break-even is 92%, you have 3 points of cushion — one tenant moving out kills your cash flow.

What pushes break-even higher (bad)

• Higher leverage (more debt service)
• Higher interest rate (more debt service)
• Higher operating expenses (insurance shocks, tax reset)
• Lower asking rents (less GPR)

What pushes it lower (good)

• More equity, less debt
• Lower interest rate
• Lower operating costs
• Higher asking rents

Debt service coverage ratio (DSCR) — the classic

Definition: DSCR = NOI ÷ Annual debt service

DSCR tells you how many times the property's NOI covers the debt service. It's the most-cited metric in CRE lending — every loan term sheet has a DSCR covenant.

Example

• NOI: $180,000
• Annual debt service: $130,000
• DSCR = $180,000 / $130,000 = 1.38x

A DSCR of 1.38 means the property generates 38% more income than needed to cover the loan. If NOI dropped 28% (to $130K), DSCR would hit exactly 1.0 — break-even on debt service.

Typical lender requirements

| Asset type | Minimum DSCR (most lenders) | |---|---| | Multifamily (agency) | 1.20-1.25x | | Multifamily (bank) | 1.25-1.35x | | Industrial (stable) | 1.25-1.35x | | Retail (anchored) | 1.30-1.40x | | Office (Class A stabilized) | 1.30-1.45x | | Office (Class B/C) | 1.40-1.55x | | Hospitality | 1.40-1.60x | | Self-storage | 1.30-1.40x | | Construction (interest reserve) | varies |

Higher-risk asset types get higher DSCR requirements. Office in 2024-2025 is getting underwritten at 1.50+ DSCR by many lenders because of the tenant risk.

DSCR covenants and the trap

Most loan documents include an ongoing DSCR covenant — typically 1.15-1.25x — that the borrower must maintain throughout the loan term, not just at origination.

If trailing-12-month NOI drops and DSCR falls below the covenant, the lender can:

• Sweep all excess cash flow into a lockbox
• Require additional equity contributions (capital call)
• Block distributions to LPs
• Declare technical default and accelerate the loan in extreme cases

Smart borrowers underwrite for DSCR cushion above the covenant, not just above the origination minimum. If your covenant is 1.20, you want to operate at 1.40 — so a 14% NOI dip doesn't trigger anything.

How the three metrics work together

Debt yield, break-even occupancy, and DSCR look at the same deal from three angles. A complete underwrite checks all three:

| Metric | What it tests | Typical lender requirement | |---|---|---| | Debt yield | "How much income per dollar of debt?" | 8-10% min | | DSCR | "How much margin above debt service?" | 1.20-1.40x min | | Break-even occupancy | "How low can occupancy drop before losses?" | 10+ pts below market |

Run all three. If any one fails the lender's threshold, the deal needs to change.

A worked example

24-unit value-add multifamily in Orlando. Pro forma Year-1 numbers (post-renovation, stabilized):

• Gross potential rent: $450,000
• Vacancy + collection loss (5%): $22,500
• Effective gross income: $427,500
• Operating expenses: $145,000
• NOI: $282,500
• Purchase price: $4,000,000
• Loan amount: $3,000,000 (75% LTV)
• Interest rate: 7.0%, 30-year amortization
• Annual debt service: $239,400

Run the metrics:

• Debt yield = $282,500 / $3,000,000 = 9.42% ✓ (clears 9% lender minimum)
• DSCR = $282,500 / $239,400 = 1.18x ✗ (FAILS 1.25 lender minimum)
• Break-even occupancy = ($145,000 + $239,400) / $450,000 = 85.4% (vs. market vacancy 6%, so cushion is ~9 points — borderline)

Debt yield clears, but DSCR fails. The lender will reduce the loan.

How much will the lender cut?

To hit DSCR 1.25, max debt service = $282,500 / 1.25 = $226,000.

At 7% / 30-year, $226,000 of annual debt service supports about $2,830,000 of loan principal.

So the lender will cap the loan at $2.83M instead of the requested $3.0M. The buyer needs another $170K of equity (4.25% more of the purchase price).

That's the loan-sizing math. The buyer either:

• Brings the extra equity (now total equity is $1.17M instead of $1.0M)
• Negotiates the price down to ~$3.83M to keep their original equity check
• Walks

Knowing this BEFORE the LOI lets you negotiate intelligently. Walking into the closing without realizing your loan got cut is how brokers and buyers get embarrassed.

Underwriting to lender standards

Practical workflow before you submit any LOI on a deal you'll need to finance:

1. Get realistic debt assumptions

Don't model 75% LTV at 6% just because that's "normal." Ask lenders what they're actually quoting today for this asset type, in this market, at the loan size you need. Rates and LTVs move quickly.

2. Calculate all three lender metrics

Build them right into your pro forma, not as an afterthought. They should be in the dashboard alongside IRR and equity multiple.

3. Compare against current lender thresholds

Call 2-3 lenders before you go hard on any deal. Ask: "If I bring you a 24-unit multifamily in Orlando with $282K stabilized NOI at $4M purchase, what loan would you offer?" The answer tells you everything.

4. Stress the debt covenant scenario

Model NOI dropping 15-20%. Does DSCR stay above the covenant? If not, build in a debt service reserve in your model or reduce leverage.

5. Plan for refinance

If your initial loan matures during the hold period, model the refinance at higher rates (rates rarely go down). What does the metrics picture look like at refi? Will you be forced to bring equity to refinance? If yes, that's a serious risk.

When lender metrics catch you off guard

Two patterns to watch for:

Pattern 1: The "perfect deal" with thin debt service coverage

The IRR shows 18%. The cap rate is 7.5% in a 5.5% market. Looks like you found a steal. Then you run the lender metrics:

• Debt yield: 11% ✓
• DSCR: 1.22 ← suspiciously low

Wait. Why is DSCR low if the cap rate is high? Because the seller is using floating-rate debt assumptions or maximum leverage. The deal looks great on paper but couldn't actually be financed at the loan amount baked into the model.

If you're using the seller's pro forma without re-running the lender metrics, you're missing this trap.

Pattern 2: The "stable" deal that fails lender stress

A trophy NNN single-tenant deal with a credit tenant. NOI is $320K. You want to borrow $4.5M.

• Debt yield: $320K / $4.5M = 7.1% ← FAIL (most lenders want 8.5%+ on single-tenant)
• DSCR: 1.25 ✓ (passes a normal test)

Lenders hate single-tenant concentration risk and require higher debt yields to compensate. If you didn't know that, you'd assume your DSCR-passing deal would get financed — and it won't.

The lesson: each asset class has its own lender norms. Bank a 9% debt yield on multifamily, you might need 10-11% on single-tenant. Underwrite to the asset class, not to a generic threshold.

What to take away

• Lender metrics determine whether your deal gets financed at all — run them before signing the LOI
• Debt yield = NOI / loan; minimum 8-10% depending on lender and asset class
• DSCR = NOI / debt service; minimum 1.20-1.40x depending on lender and asset class
• Break-even occupancy = (OpEx + DS) / GPR; want 10+ percentage points of cushion vs. market vacancy
• All three metrics should be on your underwriting dashboard alongside IRR and equity multiple
• DSCR covenants persist throughout the loan term, not just at origination — operate with cushion
• Debt yield is harder to game than DSCR; lenders increasingly use it as the primary loan-sizing tool
• Each asset class has its own lender norms; check before assuming

Next lesson: building the formal three-scenario pro forma — turning sensitivity discipline into a comparison you can present to a partner or lender.