Understanding Mortgage Approval: Factors That Determine How Much You Can Borrow

A diverse group of people reviewing financial documents and a calculator, symbolizing the mortgage approval process.

Key Factors Influencing Mortgage Approval

Credit Score

Your credit score is one of the most critical factors in determining your mortgage eligibility. Lenders use this score to assess your creditworthiness. A higher credit score often translates to better loan terms and interest rates.

  • Excellent (740+): Best rates and terms
  • Good (670-739): Competitive rates
  • Fair (580-669): Higher rates, larger down payment may be required
  • Poor (<580): Limited options, FHA loans may be available

For more information on improving your credit score, consider visiting Experian's guide on credit scores.

Income and Employment History

Lenders typically look for:

  • Steady employment history (usually 2+ years)
  • Reliable income sources
  • Recent pay stubs and W-2 forms
  • Tax returns for self-employed applicants

Most lenders follow the 28/36 rule, which states that your mortgage payment shouldn't exceed 28% of your gross monthly income, and total debt payments shouldn't exceed 36%.

Debt-to-Income Ratio (DTI)

DTI is a critical metric that compares your monthly debt payments to your gross monthly income. There are two types:

Front-end DTI

(Monthly Housing Costs ÷ Monthly Gross Income) × 100

Back-end DTI

(Total Monthly Debt Payments ÷ Monthly Gross Income) × 100

Most lenders prefer a back-end DTI below 43%, though some may accept up to 50% in certain circumstances.

Down Payment

The size of your down payment affects loan approval odds, interest rates, and PMI requirements. Traditional down payment requirements:

Loan TypeMinimum Down Payment
Conventional3-20%
FHA3.5%
VA0%
USDA0%

Loan Types and Terms

Different loans have varying requirements and limits. Common types include:

  • Conventional Loans
  • FHA Loans
  • VA Loans
  • Jumbo Loans

For more details, visit the Consumer Financial Protection Bureau's guide on loan types.

Additional Considerations

Assets and Reserves

Lenders evaluate your:

  • Checking and savings accounts
  • Investment portfolios
  • Retirement accounts
  • Other liquid assets

Most lenders want to see enough reserves to cover 2-6 months of mortgage payments.

Property Type and Location

Different properties carry different risk levels:

  • Primary residences: Most favorable terms
  • Second homes: Higher down payment requirements
  • Investment properties: Strictest requirements

The type and location of the property can influence the loan amount. Lenders may have different criteria for single-family homes, condos, or multi-family units.

Documentation Requirements

Be prepared to provide:

  • Bank statements (2-3 months)
  • Investment account statements
  • Proof of additional income
  • Gift letters for down payment assistance
  • Rental history for first-time buyers

You can explore different loan options and terms on websites like Zillow or LendingTree.

For further reading, explore NerdWallet's comprehensive mortgage guide.