Affordability and qualification pages explain how lenders decide whether a borrower can carry the mortgage, not just whether the borrower can reach closing. The section is most useful for buyers comparing payment levels, cleaning up their file before applying, or trying to understand why a lender says a loan is close but not quite comfortable.
Start Here
| If you are trying to understand… | Start with | Then read |
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| How lenders measure monthly affordability | Debt-to-Income Ratio (DTI) | Gross Monthly Income, Monthly Debt Obligations, Front-End Ratio, and Back-End Ratio |
| Which income and payment numbers the lender actually uses | Qualifying Income | Gross Monthly Income, Stable Income, Employment History, Future Income, Variable Income, Qualifying Payment, and Proposed Housing Payment |
| Which variable income sources may need more review | Variable Income | Commission Income, Part-Time Income, Seasonal Income, Overtime Income, Bonus Income, Self-Employed Income, and Rental Income |
| Which non-wage income may support qualification | Qualifying Income | Alimony Income, Child Support Income, Retirement Income, and Asset Depletion |
| Whether a file is still only an estimate or has stronger lender support | Prequalification | Preapproval |
| How cash strength affects approval | Down Payment | Qualifying Assets, Liquid Assets, Cash Reserves, Reserve Requirements, and Gift Funds |
| How upfront cash changes leverage and pricing | Down Payment | Loan-to-Value Ratio (LTV) and Combined Loan-to-Value Ratio (CLTV) |
| How credit balances and debts affect the file | Credit Score | Liabilities, Monthly Debt Obligations, Minimum Payment, Credit Card Minimum Payment, Credit Utilization, Revolving Debt, Installment Debt, and Student Loan Payment |
| How borrower structure changes the application | Co-Borrower | Cosigner and Non-Occupant Co-Borrower |
| How leverage affects approval and pricing | Loan-to-Value Ratio (LTV) | Combined Loan-to-Value Ratio (CLTV) |
| How family help or other outside support is documented | Gift Funds | Gift Letter, Gift of Equity, and Cash to Close |
What This Section Covers
The core qualification math starts with DTI, Gross Monthly Income, Monthly Debt Obligations, Housing Expense, Proposed Housing Payment, Front-End Ratio, Back-End Ratio, Qualifying Income, and Qualifying Payment. Those pages explain how lenders convert income and recurring obligations into approval and pricing decisions.
Income review then branches into stability and documentation. Use Stable Income, Employment History, Future Income, and Variable Income as the main comparison, then read Commission Income, Part-Time Income, Seasonal Income, Overtime Income, Bonus Income, Self-Employed Income, and Rental Income when the income source is not a simple fixed salary.
For support, benefit, or retirement income, compare Alimony Income, Child Support Income, Retirement Income, and Asset Depletion before assuming every non-wage source is reviewed the same way.
The section then moves into borrower strength beyond ratio math. Credit Score, Liabilities, Monthly Debt Obligations, Minimum Payment, Credit Card Minimum Payment, Student Loan Payment, Deferred Student Loan, Credit Utilization, Revolving Debt, Installment Debt, Cash Reserves, Reserve Requirements, Payment Shock, and Residual Income show why the lender is judging file durability, not just whether one payment appears to fit.
Credit-report cleanup topics such as Authorized User Account, Collection Account, Charge-Off, and Disputed Credit Account explain why underwriting may ask for more than a score. These pages are about mortgage qualification effects, not broad credit-repair advice.
Early shopping and application-readiness pages such as Prequalification and Preapproval explain what kind of lender review the borrower actually has. Borrower-role pages such as Co-Borrower, Cosigner, and Non-Occupant Co-Borrower explain how another person’s credit or income can change the file.
This section also covers cash-source and property-cost details that often surprise borrowers during qualification, including Qualifying Assets, Liquid Assets, Verified Funds, Cash Reserves, Asset Depletion, Gift Letter, Gift of Equity, and Homeowners Association Dues.
When borrowers are deciding whether outside help belongs on the loan or only in the cash-to-close plan, the clean comparison path is Co-Borrower, Cosigner, Non-Occupant Co-Borrower, Gift Funds, Gift Letter, and Gift of Equity. Those pages separate added loan liability from added cash support.
If the borrower is really deciding between “I need more cash,” “I need less leverage,” and “I need a stronger letter,” the useful comparison path is Down Payment, Loan-to-Value Ratio (LTV), Combined Loan-to-Value Ratio (CLTV), Prequalification, and Preapproval.
In this section
- Alimony Income
Support income from alimony that may be reviewed for documentation and continuance before mortgage qualification.
- Asset Depletion
Qualification method that converts acceptable assets into an income-like amount for mortgage review.
- Authorized User Account
Credit account where the borrower can use another person's account, sometimes reviewed separately in mortgage underwriting.
- Back-End Ratio
Back-end ratio compares housing cost plus other recurring monthly debt obligations to gross monthly income.
- Bonus Income
Extra compensation that may need history and continuity review before it supports mortgage qualification.
- Cash Reserves
Post-closing liquid funds that show a borrower has cushion after completing the mortgage transaction.
- Charge-Off
Seriously delinquent debt status that can affect mortgage credit review even when regular billing has stopped.
- Child Support Income
Support income for a child that may be reviewed for documentation and continuance before mortgage qualification.
- Co-Borrower
A co-borrower is a person who applies for the mortgage with another borrower and shares legal responsibility for repayment.
- Collection Account
Past-due account sent to collections that can affect mortgage credit review and underwriting conditions.
- Combined Loan-to-Value Ratio (CLTV)
CLTV compares all mortgage debt secured by the property with the home's value, not just the first mortgage.
- Commission Income
Variable sales-based income that may need history and averaging before it supports mortgage qualification.
- Cosigner
A cosigner is a person who signs the mortgage obligation to support approval and shares repayment responsibility, even if they are not the main occupant.
- Credit Card Minimum Payment
Required credit-card payment commonly counted as a revolving debt obligation in mortgage DTI.
- Credit Score
Credit score is a numeric summary of credit behavior that lenders use as one input in mortgage approval and pricing.
- Credit Utilization
Share of available revolving credit being used, which can affect mortgage credit strength.
- Debt Service Coverage Ratio (DSCR)
DSCR compares property cash flow with debt obligations and is often used in mortgage contexts where rental income drives qualification.
- Debt-to-Income Ratio (DTI)
DTI compares monthly debt obligations to gross monthly income to show how heavy the borrower's recurring debt load is.
- Deferred Student Loan
Student debt not currently in repayment that may still require a qualifying payment in mortgage underwriting.
- Disputed Credit Account
Credit-report item challenged by the borrower that may require mortgage underwriting review or correction.
- Down Payment
Down payment is the portion of the home's price the borrower pays upfront instead of financing.
- Employment History
Borrower's work record used to evaluate income stability and mortgage qualification.
- Front-End Ratio
Front-end ratio compares monthly housing cost to gross monthly income during mortgage qualification.
- Future Income
Income expected to begin after application that may need strong documentation before it supports mortgage qualification.
- Gift Funds
Gift funds are money given to the borrower for mortgage-related costs such as down payment or closing expenses, subject to lender rules.
- Gift Letter
A gift letter is the lender-requested document stating that funds provided to the borrower are a gift rather than a loan.
- Gift of Equity
A gift of equity is a home-sale price reduction from the seller to the buyer that functions as a gifted equity contribution instead of cash.
- Gross Monthly Income
Income before deductions, used as the denominator in many mortgage qualification ratios.
- Homeowners Association Dues
Homeowners association dues are recurring charges paid to an HOA that lenders often count when evaluating mortgage affordability.
- Housing Expense
Recurring housing cost used in mortgage qualification, often including payment, taxes, insurance, and dues.
- Installment Debt
Debt with scheduled payments over a set term, commonly counted in mortgage DTI.
- Liabilities
Borrower debts and obligations reviewed during mortgage application and underwriting.
- Liquid Assets
Cash or readily accessible assets a borrower may use for closing funds, reserves, or mortgage strength.
- Loan-to-Value Ratio (LTV)
LTV compares the mortgage amount with the home's value to show how much leverage is being used in the deal.
- Minimum Payment
Smallest required monthly debt payment that may be used when calculating mortgage DTI.
- Monthly Debt Obligations
Recurring required debts counted in mortgage affordability and DTI calculations.
- Non-Occupant Co-Borrower
A non-occupant co-borrower is a co-borrower who signs for the mortgage but does not plan to live in the property.
- Overtime Income
Extra pay above regular base earnings that may be reviewed before it counts for mortgage qualification.
- Part-Time Income
Income from part-time work that may support mortgage qualification when it is documented and stable enough.
- Payment Shock
Increase from the borrower's current housing payment to the proposed mortgage payment.
- Preapproval
Preapproval is a stronger lender review indicating the borrower appears to qualify under an identified mortgage framework.
- Prequalification
Early lender estimate of mortgage fit based on preliminary borrower information rather than full documentation.
- Proposed Housing Payment
Estimated housing payment a lender uses to test the mortgage being requested.
- Qualifying Assets
Assets a lender accepts for down payment, closing funds, reserves, or qualification support.
- Qualifying Income
Income the lender accepts for mortgage qualification after documentation and stability review.
- Qualifying Payment
Mortgage payment amount a lender uses to test whether the borrower qualifies.
- Rental Income
Income from renting property that may be reviewed for mortgage qualification.
- Reserve Requirements
Reserve requirements are lender expectations that the borrower still has enough cash or liquid assets after closing.
- Residual Income
Residual income is the amount of income remaining after major monthly obligations are paid, used in some mortgage programs as a repayment-capacity test.
- Retirement Income
Income from retirement sources that may support mortgage qualification when documented and expected to continue.
- Revolving Debt
Open-ended credit obligation, such as a credit card, that can affect mortgage credit review and DTI.
- Seasonal Income
Income earned in recurring seasonal work that may need history and continuity review for mortgage qualification.
- Self-Employed Income
Business or independent-work income reviewed for mortgage qualification through documentation and stability analysis.
- Stable Income
Income pattern a lender views as reliable enough to support mortgage repayment.
- Student Loan Payment
Student debt payment used in mortgage DTI, including reported, documented, or guideline-calculated amounts.
- Variable Income
Income that fluctuates and may need averaging or extra documentation for mortgage qualification.
- Verified Funds
Borrower funds the lender has documented and accepted for use in a mortgage file.