A business-purpose mortgage on a rental home of one to four units that is sized mainly on the property's rent against its payment, not on the borrower's personal income.
The name comes from the debt service coverage ratio: rent, or net income, divided by the loan payment. On a DSCR loan the lender sizes the loan so the rental income covers the payment by its required margin, and it does not verify the borrower’s wages or tax returns the way a home mortgage lender does. Each lender sets its own ratio, so ask for it in writing.
That is possible because the loan is business credit. Regulation Z exempts credit extended primarily for a business purpose, and its official commentary deems credit to acquire, improve or maintain rental property that is not owner-occupied to be for business purposes. The consumer mortgage rules built on Regulation Z, including the ability-to-repay rule, cover consumer credit only. If you will live in the property, this is the wrong product.
Most of these loans come from non-bank lenders, usually to an LLC with a personal guaranty, and often carry a prepayment penalty. A community bank or credit union may make the same loan as an ordinary investor loan after reviewing your whole financial picture. The OCC handbook says a bank’s standards for investor-owned 1-4 family loans should generally be consistent with its commercial real estate standards.
How it shows up in the data here
HMDA has no DSCR label, but it flags loans made primarily for a business or commercial purpose. This site counts each lender's 2025 loans on 1-4 unit properties that were non-owner-occupied or business-purpose, and the business-purpose subset is where these loans sit. See 1-4 unit investor lenders, the ranking by loans made and comps.
Go further
- 1-4 unit investor lenders by loans made: Lenders ranked by 2025 investor and business-purpose loans on 1-4 unit properties.
- DSCR calculator: Rent or net income over the loan payment.
- DSCR calculator: Cash flow over debt service. Type the cash flow and the loan terms, see the ratio and the cushion before it falls to 1.00x.
- Maximum loan calculator: The loan each test allows: DSCR, LTV and debt yield side by side, and which one binds.
- How to read HMDA data for multifamily and investor loans: HMDA is the one public file that lists individual apartment and rental-house loans by lender, amount, county and year. It covers loans on dwellings only, and not every lender reports.
- What to do after a bank says no to a business loan: One bank's no is one lender's answer, and the reasons are yours to ask for. They usually point to a constraint you can name.
Related terms
- Debt service coverage ratio (DSCR): Net operating income, or business cash flow, divided by the loan payments due in a year. It shows how many dollars come in for each dollar of debt service.
- Investor 1-4 unit property: A house, duplex, triplex or fourplex held as a rental or for resale, not lived in by the borrower. It has fewer than five units, so it is not multifamily.
- Non-bank lender: A non-bank lender is a company that makes loans but does not take deposits, so it is not a bank, a savings institution or a credit union.
- Home Mortgage Disclosure Act (HMDA): The federal law that makes mortgage lenders collect and publish loan-level data on loans secured by a dwelling, including apartment buildings and 1-4 unit rentals.
- Fix-and-flip loan: A short-term business-purpose loan to buy a house, renovate it and sell it, repaid from the sale instead of from monthly income.
- Prepayment penalty: A charge a loan agreement sets for paying off some or all of the principal before a stated date. Common forms are a step-down schedule, yield maintenance and defeasance.
- Personal guaranty: A signed promise by an individual, usually an owner, to repay a business or real estate loan personally if the borrowing company does not.
Sources
- 12 CFR 1026.3(a), Regulation Z exempt transactions: business, commercial or agricultural credit, retrieved .
- CFPB, Official Interpretation of 12 CFR 1026.3, comment 3(a)-4, non-owner-occupied rental property, retrieved .
- 12 CFR 1003.4(a)(38), Regulation C business or commercial purpose data point, retrieved .
- OCC Comptroller's Handbook, Commercial Real Estate Lending, Version 2.0 (March 2022), investor-owned residential real estate, retrieved .
Plain definitions for orientation, not legal, tax or credit advice. A lender's own policy decides what it will do.