A client with a growing real estate portfolio wants to add a fourth property — a beachside condo in Oceanside they plan to run as a short-term rental. Their conventional lender won’t count any projected Airbnb income at all, since the property has no rental history and the client’s personal debt-to-income ratio, loaded up with three existing mortgages, can’t support a fourth. The deal looks dead until it’s routed to a program built for exactly this scenario: a DSCR loan that qualifies the property on its own projected rental income rather than the borrower’s personal income or existing debt load.
The Problem: Conventional Lenders Don’t Trust Short-Term Rental Income
Conventional underwriting is built around long-term lease income with a signed rental agreement, and most conventional lenders either heavily discount or refuse to count Airbnb or Vrbo income entirely — especially in the first year of ownership, when there’s no tax return showing a full year of platform income. Combine that with the personal debt-to-income math that conventional loans require, and an investor with three or four existing mortgages often can’t add another property at a bank at all, regardless of how profitable the new property would actually be as a short-term rental.
The Solution: Qualify the Property, Not the Personal Tax Return
DSCR — debt service coverage ratio — loans qualify a rental property using the ratio between its rental income and its housing expense (principal, interest, taxes, insurance, and HOA dues where applicable), rather than the borrower’s personal income or existing debt. For a short-term rental with no operating history, lenders in 2026 typically accept an AirDNA market projection, discounted 75–80% for conservatism, in place of actual booking history — meaning a property doesn’t need a single night of bookings yet to qualify. Most lenders want a DSCR of at least 1.0 to 1.25, meaning the projected rental income needs to cover, or modestly exceed, the property’s full housing expense.
Because the borrower’s personal income and existing mortgage payments aren’t part of the calculation, a DSCR loan doesn’t get harder to qualify for as an investor’s portfolio grows — which is precisely the scenario where conventional financing runs out of road.
What This Looks Like in Practice
On that Oceanside condo, an AirDNA projection of $6,200 in average monthly gross short-term rental revenue, discounted to roughly $4,650 for underwriting purposes, comfortably covers an estimated $3,400 monthly housing payment — a DSCR of about 1.37, well above most lenders’ minimums. The loan closes at 25% down with 620+ credit and roughly nine to twelve months of reserves, entirely independent of the client’s three existing mortgages or their personal debt-to-income ratio. The one variable that can still kill the deal has nothing to do with the borrower’s financial profile: local short-term rental regulation. Several Southern California coastal cities restrict or require permits for short-term rentals, so confirming zoning and permitting before underwriting begins saves everyone significant time.
Where This Fits Into a Financial Plan
For clients building a real estate portfolio alongside their investment accounts, DSCR loans keep the two strategies from competing with each other — the mortgage doesn’t touch personal income, and it doesn’t require liquidating securities for a larger down payment tied to conventional debt-to-income limits. If you have a client eyeing a short-term rental purchase or refinance, it’s worth a conversation about whether DSCR financing — rather than a conventional loan that may not even approve them — is the more realistic path.
Jeff Singleton | Advisor Aligned Mortgage | NMLS# 215354 | CA BRE# 01510260 | (949) 344-1717 | advisoralignedmortgage.com