DSCR Loans for Duplexes, Triplexes & Fourplexes

Published October 2026 · By the SLA Capital team

Small multifamily — 2 to 4 units — is the quiet sweet spot of DSCR lending. Every unit's rent counts toward one qualifying ratio, one roof covers multiple income streams, and a single vacancy doesn't zero out the property's income the way it does on a single-family rental. Here's how 2–4 unit deals actually underwrite, why the ratio math favors more doors, and the one rule that surprises house-hackers.

One payment, four rents

A DSCR loan qualifies on the property's income: market rent ÷ PITIA at 1.0 or better, with 1.2+ earning the best pricing. On a 2–4 unit building, the income side is the combined market rent of every unit — the appraiser completes a rent analysis per unit, leases not required, vacant units counted at market. The payment side is one loan, one PITIA. Four rents over one payment is why a fourplex at the same purchase price as a single-family house almost always shows a stronger ratio — and a stronger ratio means better pricing and easier leverage (run your numbers).

The resilience argument

Underwriting aside, the ratio math mirrors the ownership math. A single-family rental at 1.25 DSCR drops to 0.00 income the month your tenant leaves. A fourplex at 1.25 with one vacancy still collects three rents — roughly a 0.94 — which your reserves bridge easily. Lenders see this too: the income durability of multiple doors is part of why the 2–4 unit box sits comfortably inside standard DSCR terms rather than pricing as an exotic.

The box: mostly the same, which is the point

The 2–4 unit box looks like the single-family box you already know from DSCR Loan Requirements: up to 80% LTV on purchases and 75% on cash-outs, 660+ FICO (your middle score sets the tier), close in an LLC, 30-year fixed from 6.85% (before buy down: highest credit tier, DSCR 1.20+ — current on the rate sheet), and no seasoning on cash-outs. Differences worth knowing: the appraisal takes a little longer (per-unit rent schedules), reserves scale with the bigger payment, and condition matters more — four kitchens and four furnaces are four ways to fail an inspection.

The house-hacking rule

The question we get weekly: "Can I live in one unit and rent the others?" With a DSCR loan, no — these are business-purpose loans, and the property must be entirely non-owner-occupied. House-hacking is an owner-occupied strategy financed with FHA or conventional loans. Where DSCR enters the story is the next chapter: when you move out of the house-hack and the whole building becomes an investment, a DSCR refinance takes over — often pulling your equity out to buy the next one, with the rents doing the qualifying your W-2 used to do.

Scaling from here

A 2–4 unit building is also the natural unit of scale: each one you add is one loan, one close, 2–4 doors. Stack a few and the portfolio loan option opens — 2–10 properties on one note. And since there's no cap on DSCR loans, the strategy compounds without a conventional-style property limit waiting at ten.