Does ADU Rent on a Bank Statement Loan Count as Income?

The Quick Read: Usually not as bank statement income, because the loan averages the borrower’s deposits and rent from an accessory dwelling unit is typically handled through a lease and an appraiser’s rent schedule instead. Whether the rent counts at all depends on the program, the occupancy of the property and the legal status of the unit.

• Statement income comes from 12 months of deposits, adjusted by lender expense factors.
• Rent deposits are often backed out of the statements to avoid counting the same dollars twice.
• Owner-occupied files qualify the borrower; rental files qualify the property.
• A DSCR loan is usually the cleaner fit when the ADU rent is the whole point.
• Legal status, a signed lease and a rent schedule decide most outcomes.

How Bank Statement Qualification Works

A bank statement loan is reviewed on documented income under the applicable program, subject to lender guidelines. The lender reviews 12 months of business or personal statements, averages the deposits, and applies an expense factor. For business statements the factor reflects the cost of running the business. HousingWire’s non-QM guide describes the same basic window and notes that an expense factor may apply.

Across the wholesale network Lendmire works with, the pattern is consistent. The file measures the borrower’s cash flow. It does not measure the property’s cash flow. That single distinction explains almost every answer about ADU rent.

On a primary residence, select lenders allow up to 90% LTV on a purchase or rate-term refinance, and stronger files earn the top of that range. Loan sizes run from roughly $125,000 to $3,500,000, and reserves commonly sit around six months of the housing payment. All of that is subject to lender guidelines, credit and property review.

Does ADU Rent Count as Bank Statement Income?

Generally no. ADU rent is not folded into the deposit average as ordinary income. Programs that give it any credit do so through a separate mechanism, and treatment varies by lender.

Rent can enter a file in three broad ways:

1. Added to income after a discount, based on a lease or appraiser’s rent schedule.

2. Netted against the payment, which lowers the obligation instead of raising income.

3. Used as the test itself, which is how DSCR works.

Many programs apply none of these to a consumer file. Some apply the first or second only when the unit is documented and legal. Because the three paths differ so much, a borrower should ask which one a specific program uses before assuming the rent helps.

What If the Rent Lands in Your Deposits?

Rent deposited into the account being analyzed is usually backed out of the qualifying average. Lenders do this to stop one stream of money from counting twice, once as business revenue and once as rent supported by a lease.

The practical fix is simple. Keep tenant payments in a dedicated account, keep the lease current, and make sure the deposits match the lease. A clean separate account lets the underwriter set the rent aside without guessing. Mixed accounts invite adjustments that can shrink the income the file shows.

Security deposits, transfers between your own accounts and loan proceeds do not count as income on any path. Unsourced lump sums come out as well.

Owner-Occupied Files vs. Rental Files

Occupancy decides which lane you are in, and it also decides the disclosure regime. An owner-occupied file, meaning a primary residence or second home, is a consumer mortgage. A bank statement loan on a non-owner-occupied rental, including a short-term rental, is a business-purpose loan.

A second home stays an owner-occupied consumer file, and rent generally does not help a statement file on it. If the property is really run as a non-owner-occupied rental, it is an investment property, and the business-purpose DSCR lane is where its rent can matter. The loan lane has to match how you actually use the property.

The Agency Contrast (Not How Non-QM Works)

Conventional and FHA rules do count ADU rent, but only in narrow cases, and they are not the rules that govern a bank statement or DSCR file. HUD’s Mortgagee Letter 2023-17 allows ADU income on a one-unit FHA property, caps it at 30% of total effective income, and bars it on cash-out refinances. The Appraisal Institute’s reprint summarizes a Fannie Mae change with similar limits: one-unit principal residence, one ADU, and a 30% cap.

Those limits do not carry over. Non-QM guidelines are set program by program, so an investor should never assume an agency cap or haircut applies to a statement or DSCR file.

When a DSCR Loan Fits Better

A DSCR loan compares the property’s rent to its full monthly obligation: principal, interest, taxes, insurance and any HOA dues. The borrower’s personal deposits are not averaged. If deposits are messy or falling but the property rents well, DSCR can be the cleaner structure.

DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage.

ADU rent does not automatically raise the DSCR numerator. It depends on the program, the legal status of the unit, the appraisal, the documentation and the proposed use. Select lenders in the network also offer programs below 1.00 coverage, but leverage and terms adjust when coverage is thin. Lendmire’s complete DSCR loans guide walks through how that test is built.

Legal Status and the Appraisal

Legal status is a gating item. A permitted, legally rentable ADU gives the lender something to work with. An unpermitted unit may be treated differently or excluded, and treatment varies by lender.

The appraiser sets market rent. A rent schedule on Form 1007 covers single-family and condo properties, and Form 1025 covers two-to-four-unit properties. The Fannie Mae ADU income sheet shows a 1007 attached to the appraisal when ADU rent is used, which illustrates how the form pairs with the valuation. The Appraisal Institute reprint also warns appraisers to avoid overlap between the ADU’s contribution to value and its rental income.

A few related points:

• Form 1007 reflects long-term rent. Nightly-rate income from a short-term rental ADU usually belongs in a narrative addendum.
• A proposed or new ADU leans on the appraiser’s market rent because there is no rent history.
• Multiple ADUs are lender-specific, so ask before planning around more than one.

Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income.

Documents to Prepare

Self-employed borrowers should assemble the following before applying:

• Twelve months of statements for the accounts being used.
• A signed lease for each rented unit.
• Proof that tenant payments land in a dedicated account.
• Permit or legal-status documentation for the ADU.
• Platform payout reports, if the unit is a short-term rental.
• Insurance confirming the unit is covered as rented.

Three Scenarios

An owner-occupant with a rented ADU. A self-employed owner lives in the main house and rents the ADU. Their business deposits drive the file. The rent goes to a separate account and is set aside, so it adds little or nothing to qualifying income. The strength of the file rests on the business deposits.

An investor buying a duplex-style property with an ADU. The investor owns it through an LLC, subject to lender program eligibility. Personal deposits are irrelevant. The question is whether the combined rent supports the payment, and the appraiser’s rent schedule carries the answer. This is DSCR territory.

A buyer planning to build an ADU. The unit does not exist yet. Most programs lean on appraiser-supported rent only once the unit is complete and legal, so a borrower should not count on projected rent to qualify.

Mistakes That Sink Files

• Leaving rent mixed with business revenue, so it is counted twice or stripped without warning.
• Relying on an unpermitted unit.
• Counting projected rent before the unit exists.
• Misstating occupancy. Claiming owner-occupancy while running the property as a rental is a serious problem, not a technicality.

Key Terms Defined

ADU: An accessory dwelling unit, a separate living space on the same lot as the main home.

Expense factor: The percentage a lender subtracts from business deposits to approximate operating costs.

DSCR: Debt service coverage ratio, the property’s rent divided by its full monthly obligation.

Form 1007: An appraiser’s single-family market rent schedule.

Backed out: Removed from the deposits used to calculate qualifying income.

Lendmire’s piece Do Residuals Count as Stable Income on a Bank Statement Loan? covers another income question that comes up on these files. Program availability and terms are subject to lender guidelines and individual underwriting.

Properties with a rentable second unit tend to reward the borrower who documents it early, since a lease, a separate account and a legal permit do more for a file than any argument made late.

About Lendmire

Lendmire (NMLS# 2371349) is a mortgage broker licensed for consumer lending in 16 states. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. HousingWire non-QM loans guide

2. HUD Mortgagee Letter 2023-17

3. Appraisal Institute (NC chapter reprint)

4. Fannie Mae ADU income sheet