Mortgage glossary for self-employed borrowers
50+ plain-English definitions of the terms that come up most often when self-employed, 1099, and non-traditional borrowers are shopping for a mortgage — from DTI and Schedule C to expense factors, add-backs, and the QM rule. Every term has its own page — tap a heading to open the full definition.
Start with the essentials
The twenty terms that decide most self-employed approvals — each opens a full plain-English explainer with examples and FAQs.
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Add-back
A non-cash or one-time business expense that can be added back to Schedule C net income when calculating qualifying income.
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Asset depletion loan
A non-QM program that converts liquid assets into qualifying income using a formula: eligible assets ÷ loan term in months (typically 360 for a 30-year loan).
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Bank statement loan
A non-QM mortgage that qualifies borrowers on 12–24 months of bank deposits instead of tax returns.
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Business bank statements
12–24 months of statements from a business checking or savings account, used as the primary income document for bank statement loans.
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Compensating factors
Strengths in your application that offset a weakness elsewhere.
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Conforming loan limit
The maximum loan Fannie Mae and Freddie Mac will purchase.
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CPA letter
A signed statement from a licensed CPA confirming business type, continuity of operation, or ownership percentage.
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DSCR loan
Debt-Service Coverage Ratio loan.
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DTI (Debt-to-Income Ratio)
The percentage of your gross monthly income that goes toward debt payments.
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Expense factor / expense ratio
The percentage of bank deposits a lender treats as business expenses when calculating qualifying income on a bank statement loan.
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Form 1084
Fannie Mae’s self-employed income analysis worksheet.
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Letter of explanation (LOE)
A written statement from the borrower explaining an unusual item in the application: a large deposit, a credit inquiry, a gap in employment, a recent address c…
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LTV (Loan-to-Value Ratio)
Loan amount divided by the appraised property value.
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Non-QM loan
Any mortgage that doesn’t meet the CFPB’s Qualified Mortgage definition — usually because it uses alternative income documentation, exceeds DTI thresholds, or…
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Overlays
Lender-specific requirements stricter than the minimum guidelines set by Fannie Mae, FHA, or the non-QM program sponsor.
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P&L loan / P&L-only
A non-QM program that qualifies borrowers using a CPA-certified profit-and-loss statement instead of full tax returns.
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PITI
Principal, Interest, Taxes, and Insurance — the four components of the full monthly housing payment.
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Pre-approval
A conditional commitment from a lender based on a full review of your income documents, assets, debt obligations, and credit.
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Reserves
Liquid funds you must demonstrate after closing — not applied to the down payment or closing costs.
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Tax transcripts (IRS 4506-C)
The IRS form lenders use to request your tax transcripts directly from the IRS, verifying that the returns you submitted match what was filed.
Income & qualification
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1099-NEC / 1099-K
IRS forms reporting non-employee compensation. 1099-NEC covers freelance and contractor income paid by clients; 1099-K covers payments processed through payment networks (PayPal, Stripe, Venmo) or gig platforms (Uber, Etsy). Receiving these forms doesn’t automatically define how a lender treats your income — that depends on whether you file Schedule C.
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2-year average
How conventional lenders handle self-employed income variability: they average qualifying income across the two most recent tax return years. If year 1 was $80,000 net and year 2 was $100,000, qualifying income is $90,000/year ($7,500/month). A declining income trend may cause lenders to use only the lower year.
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Add-back
A non-cash or one-time business expense that can be added back to Schedule C net income when calculating qualifying income. Common add-backs include depreciation, depletion, and non-recurring losses. Each add-back increases the qualifying income figure without changing anything on the tax return.
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Depreciation add-back
Depreciation is a non-cash expense — it reduces Schedule C net income without representing real money leaving the business. Conventional lenders add it back to qualifying income. It’s one of the most valuable add-backs for self-employed borrowers who own business equipment or real property.
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DTI (Debt-to-Income Ratio)
The percentage of your gross monthly income that goes toward debt payments. Front-end DTI covers housing costs only (PITI); back-end DTI includes all recurring debts. The traditional benchmark is the 28/36 rule: no more than 28% on housing, 36% total. Conventional lenders typically allow up to 43–45% back-end DTI with compensating factors.
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Form 1084
Fannie Mae’s self-employed income analysis worksheet. Lenders use it to standardize how they calculate qualifying income from Schedule C and other self-employment documents. It includes add-back calculations for depreciation, depletion, and other non-cash business expenses.
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Net income
Income after all business deductions. On a tax return, this is Schedule C net profit. It’s the number conventional lenders use for self-employed qualifying income — not gross revenue, not deposits, not what you invoice.
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Qualifying income
The income figure a lender actually uses when calculating your DTI — not your gross revenue, not your total deposits, and not your pay stub. For W-2 employees it’s gross wages. For self-employed borrowers on a conventional loan it’s net income from Schedule C, averaged over 2 years. For bank statement loans it’s deposit averages after the expense factor.
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Rising income / declining income
Income trend affects how lenders apply the two-year average. Rising income (year 2 higher than year 1) is favorable — some lenders will use year 2 alone. Declining income is a red flag — lenders may use only the lower year or require documentation explaining the change.
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Schedule C
The IRS form where sole proprietors and single-member LLCs report business income and expenses. Conventional lenders use the net profit figure from Schedule C to determine qualifying income for self-employed borrowers. High deductions reduce Schedule C net income significantly — which is the primary reason self-employed borrowers turn to non-QM programs.
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W-2 income
Employer-reported wages documented on a W-2 form. Treated by lenders as the most verifiable income type — fully documented, no write-offs, no averaging required. A self-employed borrower who also has W-2 income from a separate employer can combine both sources when qualifying.
Loan types
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Asset depletion loan
A non-QM program that converts liquid assets into qualifying income using a formula: eligible assets ÷ loan term in months (typically 360 for a 30-year loan). A borrower with $720,000 in liquid assets could be credited with $2,000/month of qualifying income with no employment income required.
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Bank statement loan
A non-QM mortgage that qualifies borrowers on 12–24 months of bank deposits instead of tax returns. An expense factor (typically 40–60%) is applied to average monthly deposits to estimate qualifying income. Designed for self-employed borrowers whose tax-return net income is reduced by legitimate business deductions.
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Conventional loan
A mortgage that conforms to Fannie Mae and Freddie Mac guidelines. Not government-insured. Lowest rates for borrowers with good credit and documented income. Requires 2 years of tax returns for self-employed borrowers and uses Schedule C net income for qualifying. Available with as little as 3% down on some programs.
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DSCR loan
Debt-Service Coverage Ratio loan. A non-QM investment property loan that qualifies based on the property’s projected rental income rather than the borrower’s personal income. DSCR = monthly rent ÷ monthly PITI. Most lenders require a ratio of 1.0–1.25 or higher. No personal income documentation required.
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FHA loan
A mortgage insured by the Federal Housing Administration. Allows lower down payments (3.5% with 580+ credit), more DTI flexibility, and more accessible credit requirements than conventional. Still requires standard W-2 or tax-return documentation. Carries mandatory MIP (mortgage insurance premium) that typically lasts the life of the loan.
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ITIN loan
A mortgage program for borrowers with an Individual Taxpayer Identification Number instead of a Social Security Number. Designed for non-citizen borrowers including visa holders and non-resident aliens. Requires alternative credit documentation and typically a 15–20% down payment.
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Jumbo loan
A mortgage exceeding the conforming loan limit set by Fannie Mae and Freddie Mac (≈$806,500 for a single-family home in most areas for 2025; higher in designated high-cost markets). Jumbo loans can’t be sold to the GSEs, so lenders set their own guidelines — typically requiring higher credit scores, more reserves, and a larger down payment.
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Non-QM loan
Any mortgage that doesn’t meet the CFPB’s Qualified Mortgage definition — usually because it uses alternative income documentation, exceeds DTI thresholds, or includes features QM prohibits. Non-QM lenders hold loans in portfolio or sell to private investors. Not synonymous with subprime — modern non-QM programs have strict credit and documentation standards.
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P&L loan / P&L-only
A non-QM program that qualifies borrowers using a CPA-certified profit-and-loss statement instead of full tax returns. Requires a licensed accountant to prepare and sign the statement. Provides flexibility for businesses with clean bookkeeping that haven’t yet filed the most recent year’s returns.
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Portfolio loan
A loan the originating lender holds on its own balance sheet rather than selling to Fannie, Freddie, or investors. Portfolio lenders set their own guidelines and can be more flexible on documentation, property type, and loan structure. Most non-QM loans are portfolio loans.
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USDA loan
A mortgage backed by the U.S. Department of Agriculture for homes in eligible rural areas. Zero down payment, competitive rates, but subject to household income caps and geographic eligibility requirements. Income is documented similarly to conventional.
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VA loan
A mortgage guaranteed by the Department of Veterans Affairs, available to eligible service members, veterans, and surviving spouses. Zero down payment required, no PMI, and competitive rates. Still requires full income documentation — self-employed veterans use the same 2-year tax return standard as conventional loans.
Underwriting
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CLTV (Combined LTV)
Total of all liens on the property (first mortgage + any HELOCs or second mortgages) divided by property value. A first mortgage of $300,000 plus a $50,000 HELOC on a $400,000 home is 87.5% CLTV. Lenders use CLTV to assess total exposure, not just the loan being applied for.
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Compensating factors
Strengths in your application that offset a weakness elsewhere. Common examples: large reserves offsetting a high DTI; a high credit score offsetting a low down payment; low LTV offsetting limited employment history. Non-QM lenders often apply compensating factors more holistically than automated conventional underwriting systems.
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Conforming loan limit
The maximum loan Fannie Mae and Freddie Mac will purchase. For 2025, the baseline limit is approximately $806,500 for a single-family home in most U.S. markets, with higher limits in designated high-cost areas. Loans at or below this limit are “conforming”; loans above are jumbo.
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CPA letter
A signed statement from a licensed CPA confirming business type, continuity of operation, or ownership percentage. Used in mortgage applications to lower the expense factor on a bank statement loan, confirm a self-employed business is actively operating, or verify ownership share for income attribution on a partnership return.
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LTV (Loan-to-Value Ratio)
Loan amount divided by the appraised property value. A $320,000 loan on a $400,000 home is 80% LTV. Lower LTV means more equity, lower lender risk, and typically better rate pricing. LTV above 80% on conventional loans triggers PMI requirements.
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Overlays
Lender-specific requirements stricter than the minimum guidelines set by Fannie Mae, FHA, or the non-QM program sponsor. A lender might require a 640 credit minimum even if the program allows 620. Overlays vary by lender — a decline at one lender due to an overlay doesn’t mean all lenders will decline you on the same application.
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Pre-approval
A conditional commitment from a lender based on a full review of your income documents, assets, debt obligations, and credit. Stronger than pre-qualification — it involves actual verification. Pre-approval letters are typically required when making offers in competitive real estate markets.
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Pre-qualification
A preliminary, informal estimate of how much you might borrow, usually based on self-reported information without a full document review or hard credit pull. Faster than pre-approval but carries less weight with sellers.
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Reserves
Liquid funds you must demonstrate after closing — not applied to the down payment or closing costs. Measured in months of PITI. Conventional loans often require 2 months; non-QM programs commonly require 6–18 months. Having reserves well above the minimum is one of the strongest compensating factors available.
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Underwriting
The lender’s detailed verification and risk assessment of your application. An underwriter reviews income, assets, credit history, appraisal, and title before issuing a final approval (or a conditional approval with remaining items to clear). This is where documentation gaps surface — which is why self-employed borrowers benefit from organizing their file before applying.
Documentation
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Business bank statements
12–24 months of statements from a business checking or savings account, used as the primary income document for bank statement loans. Lenders review for consistent monthly deposit averages, low NSF (non-sufficient funds) history, and a coherent business story. Large irregular deposits and interaccount transfers require written explanation.
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Expense factor / expense ratio
The percentage of bank deposits a lender treats as business expenses when calculating qualifying income on a bank statement loan. At a 50% factor, $30,000/month in deposits produces $15,000/month of qualifying income. A CPA letter documenting actual expenses can sometimes reduce the factor to 40% or below — a meaningful increase in qualifying income on the same deposits.
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Letter of explanation (LOE)
A written statement from the borrower explaining an unusual item in the application: a large deposit, a credit inquiry, a gap in employment, a recent address change, or a derogatory credit item. LOEs are requested by underwriters to document that unusual items have a reasonable, documented explanation.
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P&L statement (Profit and Loss)
A business income statement showing revenue minus expenses over a period. For mortgage purposes, a P&L must be prepared and signed by a licensed CPA to be accepted by most non-QM lenders. A year-to-date P&L covers January 1 through the month of application and is often required alongside prior-year returns.
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Tax transcripts (IRS 4506-C)
The IRS form lenders use to request your tax transcripts directly from the IRS, verifying that the returns you submitted match what was filed. Standard in conventional underwriting for self-employed borrowers. Attempting to submit altered returns is mortgage fraud — the 4506-C is how lenders catch it.
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Verification of Employment (VOE)
A document or direct lender contact that confirms your employment status, position, and income. For self-employed borrowers, a VOE is typically replaced by a combination of business license documentation, CPA letters, and tax return evidence that the business is actively operating.
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VOD (Verification of Deposits)
Bank confirmation of account balances, used to verify down payment and reserve funds. Lenders may request VODs directly from the financial institution rather than relying solely on self-provided bank statements, particularly for larger asset amounts.
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YTD P&L
A profit-and-loss statement covering the current year to date — from January 1 through the application month. Required alongside prior-year tax returns when applying for a conventional self-employed loan. A significant YTD decline relative to prior years requires explanation and can affect qualifying income.
Rates & costs
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APR (Annual Percentage Rate)
The total cost of a loan including the interest rate, origination fees, discount points, and other lender charges — expressed as a single annual percentage. APR is always higher than the stated interest rate. It’s the most accurate single-number cost comparison across loans, especially valuable when comparing non-QM programs with different origination fee structures.
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MIP (Mortgage Insurance Premium)
FHA’s mortgage insurance charge. Consists of an upfront MIP (1.75% of the loan, typically financed into the balance) and an annual MIP (approximately 0.55%/year on 30-year loans with less than 10% down). Unlike conventional PMI, FHA MIP typically continues for the life of the loan when down payment is below 10%.
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Origination fee
The lender’s fee for processing and underwriting the loan. Typically 0.5–1% on conventional loans; 1–2% on non-QM programs. Included in APR. Always compare total loan costs (APR + closing costs), not just the rate headline, especially on non-QM loans where origination fees vary significantly by lender.
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PMI (Private Mortgage Insurance)
Required on conventional loans with less than 20% down. Protects the lender — not the borrower. Typically 0.5–1.5% of the loan amount annually, paid monthly. Cancels automatically when LTV reaches 78% by original amortization schedule; you can request cancellation at 80% LTV based on current appraised value.
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Points / discount points
Upfront fees paid to the lender to buy down the interest rate. 1 point = 1% of the loan amount. On a $400,000 loan, 1 point costs $4,000 and typically reduces the rate by 0.25%. Whether buying points makes sense depends on how long you hold the loan before selling or refinancing.
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Prepayment penalty
A fee charged if you pay off the loan early — either through a full payoff (refinance or sale) or, on some products, through accelerated principal payments. Rare on conventional and FHA loans. Some non-QM products include a 1–3 year prepayment penalty structured as a declining percentage. Ask explicitly before signing a non-QM note, especially if you plan to refinance into conventional within a few years.
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Rate lock
A lender commitment to hold a specific interest rate for a set period (typically 30–60 days) while your loan is processed and underwritten. If rates rise during the lock, yours stays the same. Some lenders offer float-down options that allow you to capture a rate improvement after locking.
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Rate premium
The additional interest rate paid for a non-QM loan above the conventional baseline. The premium exists because non-QM loans cannot be sold to Fannie Mae or Freddie Mac — they are held in portfolio or sold to private investors, who price the documentation risk. Its size is not published by any regulator or agency and varies with program type, credit, LTV and market conditions; the 0.75–2% used illustratively across this site is an editorial estimate, not a quoted or sourced spread, and some lender-published figures run higher.
Property & transaction
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Appraisal
An independent assessment of a property’s market value performed by a licensed appraiser hired by the lender. The lender bases the loan amount on the lower of the purchase price or appraised value. A low appraisal can require a larger down payment, a price renegotiation, or a second appraisal.
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Closing disclosure (CD)
The final itemized disclosure of your loan terms, rate, monthly payment, and all closing costs. Federal law requires it to be delivered at least 3 business days before closing. Review it line by line against your Loan Estimate — any unexplained changes require clarification from your lender before you sign.
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Earnest money
A good-faith deposit made when your offer is accepted, demonstrating serious purchase intent. Typically 1–3% of the purchase price. Credited toward your down payment or closing costs at closing. May be forfeited if you back out of the contract outside the contingency window.
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Escrow
An account managed by your loan servicer that collects a portion of your monthly payment to cover property taxes and homeowner’s insurance when they come due. Lenders typically require escrow when the down payment is below 20%. The escrow amount is recalculated annually, which can cause your total monthly payment to change.
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HOA (Homeowners Association)
Monthly fees for shared-property communities (condos, townhomes, planned developments) covering common area maintenance, amenities, and building insurance. HOA fees are included in back-end DTI by lenders, reducing the loan amount you qualify for. High HOA fees can meaningfully reduce buying power.
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PITI
Principal, Interest, Taxes, and Insurance — the four components of the full monthly housing payment. Principal reduces your loan balance; interest is the lender’s cost; property taxes and homeowner’s insurance are collected monthly and held in escrow. Lenders use PITI (not just P&I) when calculating your front-end DTI ratio.
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Primary residence
The home a borrower lives in as their main residence. Lenders apply the most favorable terms to primary residences: lowest rates, lowest down payments, and the broadest program availability. Second homes and investment properties have stricter requirements and higher rates. Misrepresenting an investment property as a primary residence is mortgage fraud.
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Title insurance
Insurance protecting the lender (and optionally the buyer) against claims against the property’s ownership history — unpaid liens, forgeries, unknown heirs, or recording errors. Lender’s title insurance is required; owner’s title insurance is optional but advisable. A one-time premium paid at closing.
Definitions follow the agency guides and regulator materials lenders actually apply.