Non-QM Underwriting Guideline Updates - Short Term Rental Requirements
Overview
The purpose of this bulletin is to provide a summary of approved Carrington Mortgage Services, LLC (CMS) Non-QM underwriting guideline updates (highlighted in red) for short term rentals. Please note this is an abbreviated summary of the guideline changes. All updates should be viewed within the context of the full guidelines available on Carrington Wholesale.com.
Please Note: these changes are effective for new submissions on and after Thursday, August 6, 2026. Loans that are locked or have approved exceptions must continue to conform to the guidelines in effect at the time of the lock or approved exception.
| Carrington Prime Advantage and Carrington Flexible Advantage Plus Programs | |
| New Requirements | |
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Short Term Rentals Short term rental (STR) properties are investment properties rented for periods of less than 30 days, typically through property management services like AirBNB, Vacation rental by owner (Vrbo), and/or independent property managers. Short term rental properties may not be modified in a way that affects the residential character of the property. For example, parking lots and reception areas are not acceptable. Short term rental income from the subject property must be documented with the following: 1. The appraiser’s estimate of monthly short term rental income. The appraiser’s analysis must include a minimum of three comparable STR properties and account for both seasonality and area occupancy rates. The appraiser's analysis may be completed on FNMA Form 1007 Comparable Rent Schedule, a form provided by the AMC, or a separate narrative addendum within the appraisal. And 2. CMS will obtain an AirDNA Rentalizer report. The AirDNA Rentalizer must contain at least three comparable STR properties within the same zip code, an occupancy rate ≥ 50%, and a market or submarket score ≥ 60. Note: If tax returns are in the file and reveal less income than calculated above for the subject property, the underwriter must justify using a higher STR rental estimate, such as the property being recently acquired, out of service for an extended period, tax returns reflecting high one-time expenses, etc. LTV Limits for Short Term Rental Properties Short term rentals are limited to the lower of the matrix LTVs or:
Short-term rents will be reduced by 20% to account for additional expenses associated with these types of properties. Qualifying rental income will be the lowest of:
Note: If tax returns are in the file and reveal less income than calculated above for the subject property, the underwriter must justify using a higher STR rental estimate, such as the property being recently acquired, out of service for an extended period, tax returns reflecting high one-time expenses, etc. For investment properties other than the subject, short term rental income must be documented with tax returns. This section does not prohibit a borrower from occasionally renting out their primary residence or second home on a short-term basis; however, primary residence and second home transactions may not be qualified with rental income. |
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| Carrington Investor Advantage Program | |
| Old Requirements | Updated Requirements |
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Short Term Rentals Short term rental properties may not be modified in a way that affects the residential character of the property. For example, parking lots and reception areas are not acceptable. Examples of short term rentals are Air BNB, Vacation Rental By Owner (VRBO), etc. Short term rentals of less than one month in term will be qualified as an unleased property unless the borrower is able to demonstrate a 12-month history of rents on the subject property. The borrower may provide documentation from their property management service documenting 12 months gross rents. Determining the Loan-to-Value - Refer to the Carrington Investor Advantage Program Matrix - Additional LTV Limits chart. The Debt-Coverage Ratio (DCR) must be calculated using the lesser of the documented rents from the property management service or the appraiser's estimate of market rents.
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Short Term Rentals Short term rental (STR) properties are investment properties rented for periods of less than 30 days, typically through property management services like AirBNB, Vacation rental by owner (Vrbo), and/or independent property managers. Short term rental properties may not be modified in a way that affects the residential character of the property. For example, parking lots and reception areas are not acceptable. Short term rental properties must be documented with the following: 1. The appraiser’s estimate of monthly short term rental income. The appraiser’s analysis must include a minimum of three comparable STR properties and account for both seasonality and area occupancy rates. The appraiser's analysis may be completed on FNMA Form 1007 Comparable Rent Schedule, a form provided by the AMC, or a separate narrative addendum within the appraisal. And 2. CMS will obtain an AirDNA Rentalizer report. The AirDNA Rentalizer must contain at least three comparable STR properties within the same zip code, an occupancy rate ≥ 50%, and a market or submarket score ≥ 60. LTV Limits for Short Term Rental Properties Short-term rentals are limited to the following LTVs:
Short-term rents will be reduced by 20% to account for additional expenses associated with these types of properties. Qualifying rental income will be the lowest of 80% of the appraiser’s rent estimate, 80% of the AirDNA gross rents, or 80% of the documented actual rents from the property management service, when available. See also Debt Service Coverage Ratio (DSCR). |
| New Requirements | |
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Debt Service Coverage Ratio (DSCR) The DSCR calculation for short term rental properties is as follows: Debt Service Coverage Ratio = [Short Term Rental Income * 80%] / Proposed PITIA Short Term Rental Income must be reduced by 20% to account for additional expenses associated with short-term rental properties. To calculate income for short term rental properties, use the lowest of:
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Resources
Refer to the full Guidelines & Matrices available on Carrington Wholesale.com for detailed requirements.
Contacts
Please contact your Account Executive or Account Manager with any questions. Carrington thanks you for your business.


