How a DSCR Loan Works: The 1.0 Ratio Explained

How a DSCR loan works is actually simple once you see the core formula: the property’s rental income has to cover its payment. A DSCR (Debt Service Coverage Ratio) loan qualifies on the deal’s cash flow — not your W-2 — and the whole approval hinges on one number you can calculate before you ever make an offer.

The DSCR formula

The debt service coverage ratio is just rental income divided by the property’s payment:

DSCR = Rental income ÷ PITIA

Two definitions make that work:

• Rental income can be the actual rent from a signed lease, or the market rent as determined by the appraisal. Either one counts.
• PITIA is Principal, Interest, Taxes, Insurance — plus any association (HOA) fees if the property has them.

You want that ratio to be greater than or equal to 1.0. At 1.0, the property exactly covers its own payment; above 1.0, it produces a cushion. That cushion is what unlocks the most favorable terms.

Why 1.0 is the line that matters

A DSCR of 1.0 is the minimum for the best pricing. The question we always get: can you go below 1.0? Yes — you can finance a property whose rent doesn’t fully cover the payment, but your rate goes up to offset the added risk. The further below 1.0 you go, the more you pay.

The takeaway is to keep the number above 1.0. And the most important habit: do this math ahead of time, before you acquire the property. Running the DSCR during your due diligence tells you whether you’ll actually be able to refinance successfully on favorable terms — instead of finding out after closing that the deal only pencils at a higher rate.

A quick worked example

Say a stabilized rental brings in $2,000/month and the payment breaks down like this:

Component	Monthly
Principal & Interest	$1,200
Taxes	$300
Insurance	$100
HOA	$50
PITIA total	$1,650

DSCR = $2,000 ÷ $1,650 = 1.21

That’s comfortably above 1.0, so the deal qualifies for favorable terms with cushion to spare. If taxes or insurance rose enough to push PITIA over $2,000, the ratio would dip below 1.0 — and the rate would climb. (This is exactly why local tax pressure matters; see our breakdown of Chicago property taxes and the pension problem for how rising bills squeeze DSCR.)

Leverage: how much you can borrow

On the financing side, the typical DSCR leverage runs 75% to 80% of the property’s value once any rehab is done. You can push as high as 85% — but that top tier is reserved for borrowers with really strong credit and real investing experience. For most files, plan around the 75–80% range and treat 85% as the exception, not the baseline.

This is also why DSCR pairs naturally with the BRRRR model: you renovate, the value goes up, and you refinance against the new value at 75–80%. For the full cycle, see mastering the BRRRR strategy for DSCR loan success, and for the leverage concept in general, loan-to-value ratio in hard money lending.

What drives your rate and your tier

Two things push you toward the best (or worst) end of DSCR pricing:

• The ratio itself — above 1.0 gets favorable terms; below 1.0 raises your rate.
• Credit and experience — strong credit and a track record unlock higher leverage (up to that 85% tier) and better pricing.

The property is the star of the file, but your profile still sets where you land on the rate sheet. If you’re new, that’s not a dealbreaker — it just means modeling conservatively and leaning on a deal with a healthy ratio. New investors can start with DSCR loans for new investors.

The paperwork you’ll need

DSCR files are lean compared to conventional loans because the income documentation is about the property, not your tax returns. To prove the rental income, you’ll provide either:

• A signed lease (for actual rent), or
• The market rent from the appraisal (the appraiser’s 1007 rent schedule)

That’s the heart of it. You’re documenting that the asset can carry its own debt — which is the entire premise of DSCR lending. If you want to see how this compares to flip and bridge products, read hard money vs conventional financing differences or start with what is a hard money loan.

Run your number before you buy

DSCR lending rewards investors who do the math early. Calculate rent ÷ PITIA during due diligence, keep it at or above 1.0, plan for 75–80% leverage, and have your lease or appraisal rent ready. Do that, and the refinance becomes a formality instead of a surprise.

Start your DSCR file

Have a rental in mind and want to check the ratio on a real deal?

1. Tell us what kind of loan you need — pick your scenario and start pre-qualification
2. Submit your deal details — address, rents (or expected market rent), taxes, insurance, and any HOA
3. Call (833) 264-7776 to run the DSCR math with the desk

Send the numbers and we’ll tell you quickly whether your DSCR clears 1.0 and what leverage the deal supports.

In this video

• 0:00 — How a DSCR loan works, simply
• 0:05 — The formula: rental income (actual or market) over PITIA
• 0:20 — Keep the ratio ≥ 1.0 for the best terms; below 1.0 raises your rate
• 0:30 — Run the math before you acquire, to ensure a clean refinance
• 0:40 — Leverage: 75–80% typical, up to 85% with top credit and experience
• 0:48 — Paperwork: a lease or market rent from the appraisal

Full transcript

In this video we’re going to talk about how a DSCR loan works. Very, very simple: what we want to make sure of is that the rental income — either the actual rental income or the market rents as determined by the appraisal — over the PI (that’s principal, interest, taxes, insurance, and any association fees) is greater than or equal to 1.0. This is the minimum requirement to get the most favorable terms.

Can we go less than 1.0? Yes — but that means your rate goes up, so keep this number above 1.0. You should be doing this research ahead of time, before you actually acquire the property, to ensure that you’ll at least have this number to successfully refinance.

You do the renovation on the loan; your typical leverages are 75 to 80% of the value once the rehab is done. You can go as high as 85%, but you need really, really good credit and really, really good experience to qualify for the 85% DSCR loan. Some of the paperwork you’ll need to get this done is either a lease, or we can use market rent from the appraisal.

Rates, terms and conditions offered only to qualified borrowers and are subject to change at any time without notice. All loans are subject to full underwriting for loan approvals. Jaken Finance Group only finances non-owner occupied investment properties.