What Is DSCR — and Why 1.2 Is the Line

The one ratio that decides whether your deal gets financed

Most investors meet DSCR for the first time as an obstacle — a term the lender uses to explain why the loan is smaller than they wanted. That is backwards. DSCR is not the lender’s ratio. It is the single clearest measure of whether a property can carry its own debt, and if you learn to use it before the lender does, it will stop you from buying deals that were going to hurt you anyway.

I have been investing for 20 years across 200+ transactions, and I operate 125 doors today in Tampa, Florida and Northeast Pennsylvania. Every financing conversation I have — acquisition, construction-to-perm, refinance — runs through this ratio. Know it cold.

The math, in thirty seconds

DSCR = Net Operating Income ÷ Annual Debt Service.

Net operating income is what the property earns after operating expenses and before debt: collections minus taxes, insurance, management, maintenance, utilities, and the rest. Debt service is your total annual loan payments, principal and interest.

Run a simple illustration. A property producing $120,000 in NOI with $100,000 in annual debt service has a DSCR of 1.20. The same property with $110,000 in debt service is at 1.09. At $120,000 of debt service it is at 1.00 — breakeven. Below 1.00, the property does not earn enough to pay its own mortgage, and the difference comes from you, every month.

Notice what moved in that example. The building didn’t change. The income didn’t change. Only the debt did. DSCR is where your operations and your financing decisions meet in one number.

Why the line sits at 1.2

The 1.2 standard is not arbitrary. Work out what it actually buys.

At a DSCR of 1.20, your NOI can fall roughly 17% before the property hits breakeven. That 17% is the cushion that absorbs a real year: a couple of vacant units, a turn that runs long, a delinquent tenant working through the court process, a roof repair, an insurance renewal that comes in ugly. Lenders have watched thousands of properties live through those years. The line at 1.2 is their institutional memory of how much can go wrong in a normal year at a normally-run property.

At 1.10, your cushion is 9%. At 1.05, one bad month starts the bleed. This is why I keep telling investors: 1.2 is not a target. It is a floor. The lender’s line protects the lender’s loan — your standard has to protect your equity, and your equity is behind theirs.

DSCR sizes your loan — that’s its real power

Here is what most content about DSCR misses: coverage does not just decide whether you get approved. It decides how much you can borrow, and in today’s rate environment it usually decides it before anything else does.

A lender sizes your loan two ways — as a percentage of value (LTV) and as the debt your income can cover at 1.2 or better — and lends you the lesser. When rates were cheap, the value test usually bound first. At today’s rates, the same NOI supports less debt, so the coverage test binds first on most deals. That is why refinance proceeds are lower for the same appraised value, and it is exactly the dynamic I walked through in my BRRRR-in-2026 article: an appraisal number is not borrowing power. Our Vine Street deal in Scranton appraised at $2.3 million post-stabilization — but a lender does not hand you a percentage of the appraisal, it hands you the debt the property’s verified income can cover. Income is the collateral that matters.

This has a direct consequence for how you buy: every dollar of real, verified NOI you can add is worth a multiple of itself in borrowing power. And every dollar of NOI you claim but cannot document is worth nothing, because lenders underwrite trailing, verified numbers — reports are not reality, verification is reality.

Know your headroom — the operator’s version of DSCR

DSCR is a snapshot. Headroom is the discipline.

Your DSCR headroom is the distance between where the property operates today and the level where coverage breaks. I run this on my own portfolio as a standing rule: for every asset, know how far NOI can fall before you breach 1.2, and before you hit 1.0. Then look at your weekly numbers — occupancy, collections, delinquency, units in turn, expense variance — because those are not administrative chores. They are the early-warning system for coverage. Small operating leaks compound into major portfolio drag, and DSCR is where that drag eventually shows up with a lender watching.

This is the operator-versus-landlord split again. A landlord learns their DSCR when they apply for a loan. An operator knows it every week, on every asset, because refinance windows open on the lender’s calendar, not yours — and the property that walks into that window with twelve months of clean, verified coverage gets terms the others do not.

The levers that move DSCR — in the order that works

Because DSCR is one ratio with two inputs, there are only two families of moves, and knowing which lever to pull first is worth real money.

Raise NOI. This is the operator’s lever, and it is almost always the stronger one because of the multiplier above — a dollar of new NOI creates several dollars of borrowing power at the same time as it improves coverage. The moves are unglamorous and cumulative: get under-market rents to market at renewal, cut unnecessary vacancy with faster turns and real leasing follow-up, enforce collections so scheduled rent becomes actual rent, move owner-paid utilities to tenant control where appropriate, audit recurring expenses and vendor pricing, and capture the ancillary income the property is leaving on the table. None of these is a trick. All of them are the same weekly-scorecard discipline that keeps you ahead of the coverage line instead of discovering problems in the lender’s spreadsheet.

Restructure the debt. The financing-side lever: longer amortization lowers annual debt service and lifts coverage on the same NOI, more equity in the deal does the same, and the structure of the loan — construction-to-perm versus bridge, fixed versus floating — decides how exposed your coverage is to the rate environment. These moves work, but understand what they are: they change how the deal is financed, not what the property produces. Debt structure can protect a good asset through a rough stretch. It cannot manufacture income that operations aren’t producing, and a deal that only covers because of an interest-only period has a coverage problem with a delay on it.

The order matters. Fix operations first, structure debt second — because the lender will verify the first and price the second accordingly.

Underwrite above the line

The practical standard I hold: a deal has to clear 1.2 on today’s real numbers, not pro-forma hope — and then it has to survive the stress test still standing. Rents 5% under plan, vacancy at 10%, expenses up 10%: run the coverage math again in that world. If the stressed case falls materially below 1.0, the deal does not merely make less money — it breaks, and it breaks at exactly the moment you have the least flexibility to fix it.

An operator does not need perfect predictions. An operator needs enough margin to survive being wrong, and in financing terms, margin is spelled DSCR. Buy with headroom, operate to protect it, and the ratio that most investors experience as an obstacle becomes what it actually is: the number that lets you sleep.

In an upcoming article I will put this to work on a full 12-unit deal analysis with real numbers, line by line, so you can see where coverage is won and lost inside an actual underwriting.