Three numbers sit between a rental property and its final loan terms: the benchmark yield a lender prices from, your credit score, and the property's debt-service coverage ratio. Investors tend to watch the first and ignore the other two. That order is backwards — market benchmarks move every loan in the country by small amounts, while the borrower-side numbers move your specific pricing by much larger ones.

This walkthrough breaks down the five figures that actually set pricing on real estate investment loans, explains how a lender reads each one, and works through two quotes on the same property so you can see the math the way an underwriter does.

Number 1: The Benchmark the Whole Market Prices From

No lender sets investment-property pricing in a vacuum. Fixed-rate commercial and investor loans are commonly priced as a spread over long-term Treasury yields, while floating-rate products are tied to short-term index rates such as prime or SOFR.

What this means for you: when the 10-year Treasury moves, investor loan pricing typically drifts in the same direction over the following weeks. You cannot control this number. You can control when you lock — and whether you choose fixed or floating. If your hold plan is five years or longer, a fixed rate removes this variable entirely. If you are buying, renovating, and refinancing within a year, a bridge loan keeps you out of long-term pricing games you do not need to play.

Number 2: Your Credit Score, Read in Tiers

Lenders do not price credit continuously. They price in tiers, and the tier boundaries are where the money changes. Broadly:

  • 740 and above — best available pricing for most investor programs
  • 700 to 739 — modest adjustments at most lenders
  • 680 to 699 — meaningful adjustments; some programs unavailable
  • Below 660 — conventional and agency-style options narrow sharply; portfolio and short-term lenders become the realistic path

One practical note: mortgage underwriting usually uses your mid-score across the three bureaus, not your highest. A borrower who "has a 780" but carries a 705 mid-score gets priced at 705. Pull all three reports before you apply and correct errors first.

One more pattern to understand: adjustments layer. A single 680 score is survivable; a 680 score combined with 85% LTV and a 1.05 DSCR is three small problems pushing in the same direction, and lenders price the combination like one bigger one.

Number 3: Loan-to-Value, the Leverage Dial

LTV measures the loan against the property's value or purchase price, whichever is lower. Typical maximums you will encounter:

  • Conventional investment loans: commonly up to 75–80% for single-family rentals
  • DSCR rental loans: commonly up to 75–80%, with pricing adjustments above 75%
  • Hard money and bridge loans: commonly 65–75% of value, or a percentage of the after-repair value on fix-and-flip projects

Here is the pattern to internalize: every increment of leverage typically costs you something — a higher rate, more reserves, or both. A 75% LTV loan is not just "more money down the street"; it is a different risk category in the underwriter's model. If you can reach 70–75% LTV, you usually land in the best pricing bracket a lender offers. One technical note: LTV is calculated from the lower of the purchase price or the appraised value, so a low appraisal effectively raises your required down payment.

Number 4: DSCR, the Rental Income Test

The debt-service coverage ratio divides the property's rent by its full payment — principal, interest, taxes, and insurance. Most DSCR-based programs require coverage of 1.20 to 1.25 times the payment, with stronger pricing kicking in around 1.30 and above. Below 1.0, most DSCR loan programs are off the table and you are looking at different structures entirely.

How a lender reads it: DSCR is a cushion score. At 1.25, the property collects $1.25 of rent for every $1.00 of obligation, so a modest rent dip does not break the deal. At 1.05, there is almost no margin, and most underwriters will either decline the file or price it accordingly. This single number often decides more approvals than credit score does.

Number 5: Points and Fees, What You Pay Upfront

Investment loans carry upfront costs that rarely appear in the rate quotes shown in ads:

  • Origination points: commonly 1–2 points on conventional and DSCR products (a point is 1% of the loan amount)
  • Hard money points: commonly 2–4 points, reflecting shorter terms and faster execution
  • Third-party costs: appraisal, title, and inspection or environmental reports where required

Points reshape the real comparison between offers. A lower headline figure with three points is not the same deal as a slightly higher one with one point. That is why the worked example below focuses on break-even rather than rate alone. Points are also negotiable more often than published — on smaller loans especially, there is sometimes room to trade points against structure rather than pay them in full.

The Worked Example: Two Quotes on a $500,000 Duplex

You are buying a duplex for $500,000 with 25% down, so the loan is $375,000. Rent is $4,200 per month. Assume, purely for the math, that two hypothetical lenders quote 30-year fixed terms at 75% LTV: Quote A at 7.5% with 1.5 points, and Quote B at 8.0% with 0.5 points.

Monthly principal and interest:

  • Quote A: roughly $2,620 per month
  • Quote B: roughly $2,750 per month

Quote A saves about $130 per month. But Quote A costs 1.5 points ($5,625) versus 0.5 points ($1,875) — a $3,750 upfront difference. Divide $3,750 by $130: Quote A breaks even in about 29 months, just under two and a half years. Hold the property longer than that and Quote A wins; sell or refinance sooner and Quote B was the better trade.

Now the coverage check. With taxes and insurance at $750 per month, the total payment under Quote A is about $3,370, and $4,200 in rent produces a DSCR of about 1.25 — exactly at the common threshold. Same property, same rent: if the pricing had come back at 8.0% with the same down payment, coverage would land right at 1.20, on the edge of many programs' minimum. This is why rate shopping is never just rate shopping.

Where Your Number Comes From

Benchmarks set the range; credit score, LTV, DSCR, and points decide where inside that range you land — and how those four interact is what a good loan officer models before you make an offer.

Two housekeeping points when comparing quotes: line them up on the same day with the same lock period, and confirm the reserve and escrow assumptions match. Small mismatches in those details routinely explain the mystery differences between offers.

If you are weighing two quotes on a specific property, send the rent figure and both loan offers to our team at Tesni, LLC. We will run the break-even and coverage math against your actual deal and tell you which quote is really cheaper.