What Salary Do You Need to Buy a $400K Home in 2026?

The 28/36 Rule Lenders Actually Use

When you apply for a mortgage, lenders use a simple formula called the 28/36 rule. Your monthly housing payment should not exceed 28% of your gross monthly income, and your total debt payments should not exceed 36%. This is not a suggestion — it is how lenders decide if you qualify.

What You Need to Earn for a $400K Home

At current rates around 7%, a $400,000 home with 20% down gives you a $320,000 loan. Your monthly principal and interest payment would be around $2,130. Add property taxes and insurance and you are looking at roughly $2,600/month total housing cost.

• Using the 28% rule: you need at least $9,285/month gross income
• That works out to $111,400 per year
• With existing debt payments, you may need even more

What If You Put Less Down?

A smaller down payment means a bigger loan, higher monthly payment, and PMI charges if you put less than 20% down. PMI typically adds $100-200/month to your payment and does not build equity.

The Real Question: What Can You Afford?

Your lender approval amount and what you can comfortably afford are two different things. Many buyers get approved for more than they should spend. Use our home affordability calculator to find your true comfortable maximum.

How Down Payment Size Changes the Required Salary

The $111,400/year figure above assumes 20% down. Here's how it shifts at other down payment levels:

• 20% down ($80,000): $320,000 loan, requires approximately $111,400/year income
• 10% down ($40,000): $360,000 loan plus PMI, requires approximately $128,000/year income
• 3.5% down FHA ($14,000): $386,000 loan plus MIP, requires approximately $135,500/year income

Smaller down payments increase both your loan amount and add mortgage insurance costs, which combine to push the required income up meaningfully — a $54,100 gap between 20% down and 3.5% down on the same home price.

Common Mistakes Buyers Make at This Price Point

• Using pre-tax income assumptions incorrectly. The 28% rule applies to gross (pre-tax) monthly income, not take-home pay — mixing these up leads to a significantly wrong estimate.
• Forgetting HOA fees if applicable. On homes with an HOA, add $100-400/month to your housing cost calculation, which directly increases the income needed to qualify.
• Not accounting for existing debt in the 36% total. A car payment or student loan directly reduces how much house you qualify for, even with sufficient income for the 28% housing-only threshold.
• Assuming the required income is fixed regardless of credit score. A lower credit score means a higher rate, which increases the monthly payment and therefore the income needed to qualify — sometimes substantially.

Frequently Asked Questions

What salary do I need for a $400,000 home with no other debt?

With 20% down at current rates, approximately $111,400/year gross income comfortably satisfies the 28% housing ratio. With existing debt, this number increases since lenders also cap total debt at 36% of income.

Can I buy a $400,000 home on a lower salary if I have a co-borrower?

Yes — lenders typically combine both borrowers' incomes when calculating the debt-to-income ratios, which can significantly lower the individual income threshold needed. Both credit profiles are considered, so a co-borrower with weaker credit could also affect the rate offered.

Does the 28/36 rule apply the same way to all loan types?

The specific ratios vary slightly — FHA loans use a 31/43 guideline rather than 28/36, generally allowing a higher debt-to-income ratio than conventional loans, which can make qualifying easier on the same salary.

How much does PMI actually add to the required salary on a smaller down payment?

PMI typically adds $100-250/month depending on your down payment and credit score, which translates to needing roughly $4,000-10,000 more in annual income to comfortably qualify for the same home price.

Is $400,000 a realistic home price in most U.S. markets in 2026?

It varies enormously by region — $400,000 buys very different homes in different parts of the country. The income math in this article applies regardless of location; only your local price expectations will differ.

Should I get pre-approved before or after calculating my own affordability number?

Calculate your own comfortable number first using tools like the one below, then get pre-approved to see what a lender actually offers. This order helps you avoid anchoring to a lender's maximum approval amount, which is often higher than what's comfortable for your budget.