DSCR or conventional: two ways to finance a rental
A DSCR loan is a business-purpose mortgage on a rental you do not live in, qualified on the property's rent measured against its own monthly payment, under each lender's own rules. A conforming conventional loan on an investment property is written to Fannie Mae and Freddie Mac guidelines and qualified on you: your income, assets and debts, with part of the rent able to count under Fannie Mae's rental income rules. For a rental in San Luis Obispo County, California Mortgage Solutions can arrange either one.
Side by side
| The rule | DSCR | Conventional |
|---|---|---|
| What the loan is qualified on | The property's rent, measured against the property's own monthly payment. That measure is the debt service coverage ratio, and each lender sets how it figures the ratio and the level it has to reach. | You. Fannie Mae's guide has the lender verify and document the income, assets and debts it relies on, except where the guide provides otherwise, and weigh your debt-to-income ratio, with the new loan's payment counted in it. |
| How the rent counts | It is what the ratio is built on. Each lender sets how the rent is documented and read. | Part of it can count, under Fannie Mae's rental income rules. On a purchase, the rent comes from the appraiser's rent schedule, or from a lease that transfers to you, checked against that schedule, and the property's own payment comes off it. None of it counts unless your current housing payment is documented, and without the property management history Fannie Mae requires, it can only offset the property's own payment. |
| Does the federal ability-to-repay rule apply? | No, on a loan to buy, improve or maintain a rental you will not occupy: Regulation Z deems it business credit and exempts it. That can change if you expect to stay there yourself in the coming year for longer than the brief period the rule allows, or if a refinance takes cash out for your own use. | No, on the same rental: the same exemption reaches a conventional loan. Fannie Mae buys a loan outside the rule as long as it meets the guide's other eligibility and underwriting requirements, which still weigh your income and debts. |
| Who can be the borrower | Each lender decides, including whether it will lend to an LLC or another organization. A loan to an organization is outside Regulation Z whatever its purpose, even when a person stands behind it. | A natural person, who signs the note and takes title in their own name. Fannie Mae lists the exceptions, among them an inter vivos revocable trust, one you create and can change during your lifetime. An LLC is not one of them. |
| Financed properties you can have | Each lender's own rule. | Up to ten on a loan for a second home or an investment property, run through Fannie Mae's Desktop Underwriter. The count takes in the property being financed and the other financed one- to four-unit residential properties any borrower is personally obligated on, counting a jointly financed one once, with exceptions the guide lists. |
| Mortgage insurance | Each lender's own rule. | Fannie Mae requires it, or another credit enhancement its charter allows, when the loan is large against the property's value. On an investment property loan sold to Fannie Mae, its servicing rules set when the insurance can end, on conditions. |
| Prepayment penalty | Each lender's term. Regulation Z's limits on prepayment penalties do not reach business credit. | None on a loan sold to Fannie Mae, which does not buy a loan subject to a prepayment penalty. |
| Occupancy | A rental you will not live in. Each lender sets the property types it accepts. | A primary residence or an investment property of one to four units, or a one-unit second home. Fannie Mae defines an investment property as one you own but do not occupy. |
| Loan size | Each lender's own maximum, not the conforming loan limit. | Up to the county's conforming limit: $1,000,500 for one unit in 2026, and higher for two to four units. Above it, the loan is a jumbo loan. |
Where each one fits
DSCR can fit when
- The property's rent reaches the ratio your lender asks for, and your documented income, with all your debts counted, would not fit Fannie Mae's debt-to-income limits.
- You want an LLC to be the borrower, and your lender will lend to one. Fannie Mae buys loans made to natural persons, and an LLC is not among its exceptions.
- Counting this property, you would have more financed properties than Fannie Mae allows on a loan for an investment property.
- You do not yet have the property management history Fannie Mae requires before the rent can count as income beyond the property's own payment, and your lender's rules do not ask for one.
Conventional can fit when
- Your documented income carries all your debts, the new loan included, within Fannie Mae's debt-to-income limits.
- You want no prepayment penalty. Fannie Mae does not buy a loan subject to one, so a loan sold to Fannie Mae has none.
- The property is one you will live in, or a one-unit second home. A conforming conventional loan can finance either; a DSCR loan is for a rental you will not live in.
What the two have in common
- A loan to buy, improve or maintain a rental you will not occupy is business credit under Regulation Z, outside its ability-to-repay rule, whichever of the two it is.
- Each lender can add rules of its own. A DSCR loan has no agency guidelines underneath them; on a loan sold to Fannie Mae, a lender can qualify borrowers more conservatively than Fannie Mae's minimums, as long as it applies the same approach to similar loans.
- Both look at the rent: a DSCR lender qualifies the loan on it, and Fannie Mae's rental income rules can count part of it in qualifying you.
Questions
What is the difference between a DSCR loan and a conventional loan?
A DSCR loan is a business-purpose mortgage on a rental you do not live in. It is qualified on the property's rent measured against the property's own monthly payment, a measure called the debt service coverage ratio, and each lender sets its own rules. A conforming conventional loan on an investment property is written to Fannie Mae and Freddie Mac guidelines and qualified on you: your income, assets and debts, with your debt-to-income ratio weighed, and Fannie Mae's rental income rules can count part of the rent.
Why does a DSCR loan not qualify my income when a conventional loan does?
Not because of the federal ability-to-repay rule. Regulation Z treats a loan to buy, improve or maintain a rental you will not occupy as business credit, so that rule reaches neither loan on such a rental. On a loan sold to Fannie Mae, the difference is Fannie Mae's guide: Fannie Mae buys a loan outside the rule as long as the loan meets its other requirements, and those require the lender to verify and document the income, assets and debts it relies on, except where the guide provides otherwise. A DSCR loan is written to each lender's own rules instead.
Can an LLC be the borrower on a conventional loan?
Not on a loan sold to Fannie Mae. Fannie Mae buys loans made to natural persons, who sign the note and take title in their own names, and its guide lists the exceptions, among them an inter vivos revocable trust, one you create and can change during your lifetime. An LLC is not one of them. A DSCR lender decides for itself whether to lend to an LLC, and a loan to an LLC is outside Regulation Z whatever its purpose.
Is there a limit on financed properties with a conventional loan?
Yes, on a loan sold to Fannie Mae. Fannie Mae allows up to ten financed properties when the loan is for a second home or an investment property and runs through its Desktop Underwriter. The count includes the property being financed and the other financed one- to four-unit residential properties any borrower is personally obligated on, counting a two- to four-unit building as one property and a jointly financed property once, with exceptions the guide lists. A DSCR lender sets its own rule.
Can a DSCR loan or a conventional loan carry a prepayment penalty?
A conventional loan sold to Fannie Mae cannot: Fannie Mae does not buy a loan subject to a prepayment penalty. On a DSCR loan, whether there is one is the lender's term, and Regulation Z's limits on prepayment penalties do not reach business credit. Read the note's prepayment terms before you sign.
Sources
The publications behind the rules above. Where a row says each lender decides for itself, no publication sets that rule. The figures for the county come from the county's loan limit page, with their own sources.
- Regulation Z, 12 CFR 1026.3, Exempt transactions, with its official interpretation, read October 14, 2026.
- Regulation Z, 12 CFR 1026.43, Minimum standards for transactions secured by a dwelling, read October 14, 2026.
- Fannie Mae Selling Guide, A3-2-02, Responsible Lending Practices, read October 14, 2026.
- Fannie Mae Selling Guide, B2-1.5-02, Loan Eligibility, read October 14, 2026.
- Fannie Mae Selling Guide, B3-6-02, Debt-to-Income Ratios, read October 14, 2026.
- Fannie Mae Selling Guide, B3-3.8-01, General Rental Income Information, read October 14, 2026.
- Fannie Mae Selling Guide, B3-3.8-02, Rental Income from the Subject Property, read October 14, 2026.
- Fannie Mae Selling Guide, B2-2-01, General Borrower Eligibility Requirements, read October 14, 2026.
- Fannie Mae Selling Guide, B2-2-05, Inter Vivos Revocable Trusts, read October 14, 2026.
- Fannie Mae Selling Guide, B2-2-03, Multiple Financed Properties for the Same Borrower, read October 14, 2026.
- Fannie Mae Selling Guide, B7-1-01, Provision of Mortgage Insurance, read October 14, 2026.
- Fannie Mae Servicing Guide, B-8.1-04, Termination of Conventional Mortgage Insurance, read October 14, 2026.
- Fannie Mae Selling Guide, B2-1.1-01, Occupancy Types, read October 14, 2026.
- Fannie Mae Selling Guide, B2-1.5-01, Loan Limits, read October 14, 2026.
- FHFA conforming loan limits, San Luis Obispo County, read October 14, 2026.
Keep reading:Every loan, comparedThe county's loan limits
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