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How Much Home Can You Actually Afford?

Quick math and real-world factors that determine your buying power.

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Before you start house hunting, it's important to figure out what's truly within your means. Below, we'll cover the core numbers and costs that shape what you can comfortably afford.

  • Income
  • Gross monthly pre-tax income
  • Stability and consistent history
  • Different documents if self-employed
  • Debt-to-Income Ratio (DTI)
  • Front-end ratio (housing only)
  • Back-end ratio (includes all debts)
  • Understanding what lenders look for
  • Down Payment
  • 3% vs. 5% vs. 20%
  • Impact on monthly payment
  • Mortgage insurance considerations
  • Interest Rate
  • Small changes can make a big difference
  • Market timing vs. personal readiness
  • Rate locks and options

What Counts as Income?

Lenders look at stable, consistent income that can be verified.
The stronger and more stable your income history, the more flexibility you’ll have in qualifying.

W-2 Employees

  • Base salary or hourly wages
  • Bonuses (if consistent)
  • Overtime (if consistent)
  • Commission (with history)

Self-Employed

  • Net income (after expenses)
  • 1–2 years of tax returns
  • Business bank statements (for certain programs)

Other Income That May Count

  • Rental income
  • Alimony or child support (if documented)
  • Social Security
  • Retirement or pension income

How Lenders Measure Affordability

DTI compares your monthly debt payments to your gross monthly income.
Even if you technically qualify, higher DTI means tighter monthly cash flow.

Front-End Ratio (Housing Only)

  • Proposed mortgage payment
  • Property taxes
  • Homeowners insurance
  • HOA dues (if applicable)

Back-End Ratio (All Debts)

  • Housing payment
  • Car loans
  • Student loans
  • Credit cards
  • Personal loans

General Guidelines

  • Many programs prefer total DTI under 43–50%
  • Strong credit can allow more flexibility
  • Lower DTI = more comfortable payment

How Your Down Payment Impacts the Loan

Your down payment affects approval, monthly payment, and long-term cost.
You don’t always need 20% down — but putting more down reduces long-term cost.

Common Down Payment Levels

  • 3% (Conventional minimum in some cases)
  • 3.5% (FHA minimum)
  • 5–10% (More flexibility)
  • 20% (Avoids mortgage insurance on conventional loans)

More Down, More Benefits

  • Lower monthly payment
  • Better interest rate in some cases
  • Lower mortgage insurance costs
  • Stronger offer when buying

Important

  • You don’t always need 20% down — but putting more down reduces long-term cost.

Why Rate Has a Big Impact

Small rate changes create large payment differences over time.
The right rate isn’t just about today — it’s about long-term comfort.

What Influences Your Rate

  • Credit score
  • Loan type
  • Down payment
  • Market conditions
  • Loan term (15 vs 30 year)

Rate Locks

  • Net income (after expenses)
  • 1–2 years of tax returns
  • Business bank statements (for certain programs)

Example Concept

  • A 0.5% rate change can shift your payment by hundreds per month depending on price point.

Ready to see what works for you?

Mission Loans helps you turn information into a clear next step — without pressure or confusion. 
  • No obligation to move forward
  • No confusing jargon or pressure
  • Clear next steps explained simply

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