How Much Income You Need to Buy a $400K Home in Waukesha County (2025 Update)

How Much Income You Need to Buy a $400K Home in Waukesha County (2025 Update)

Union Home Mortgage
Union Home Mortgage
Published on August 11, 2025

How Much Income You Need to Buy a $400K Home in Waukesha County (2025 Update)

Waukesha County mortgage income requirements in 2025 are key to knowing exactly how much you need to buy a $400K home.

If you've been wondering how much income you need to buy a $400K home in Waukesha County in 2025, the answer depends on your loan program, down payment, and debt profile. Whether you're eyeing a Brookfield colonial, a Pewaukee lakefront, or a Hartland new build, knowing your target income range will help you house hunt with confidence - and make sure you can qualify without surprises, “Waukesha County mortgage income”.


1. Conventional Loan Scenario

For a $400K purchase price, most buyers in Waukesha County choose a conventional loan. Here's a sample breakdown assuming 10% down, a 6.5% interest rate, and typical property taxes/insurance:

  • Loan amount: $360,000
  • Monthly principal & interest: ~$2,275
  • Estimated taxes & insurance: ~$500 - $650/month
  • Total monthly payment: ~$2,775 - $2,925

Required gross monthly income: ~$7,000 - $7,500 (based on 36 - 40% debt-to-income ratio).

📌 Related reading: Conventional Loans Wisconsin - A Smart Choice for Homebuyers

External link: Fannie Mae - Conventional Loan Requirements


2. FHA Loan Scenario

If you go FHA, the minimum down payment is 3.5%, but you'll have monthly mortgage insurance (MIP).

  • Loan amount: $385,000
  • Monthly principal & interest: ~$2,435
  • Estimated taxes & insurance: ~$500 - $650/month
  • MIP: ~$275/month
  • Total monthly payment: ~$3,210 - $3,360

Required gross monthly income: ~$8,000 - $8,400.

📌 Related reading: FHA Loans in Wisconsin - 2025 Guide for First-Time Homebuyers and Beyond

External link: U.S. Department of Housing and Urban Development - FHA Loans


3. Jumbo Loan Scenario

If your $400K purchase comes with additional costs or upgrades pushing it over conforming limits, you may need a jumbo loan. Jumbo loans require higher credit scores and down payments but can be competitive for well-qualified buyers.

📌 Related reading: Mortgage Pre-Approval in Wisconsin - From Call to Letter in 3 Easy Steps


4. Factor in Other Debts

Your car payments, student loans, and credit card balances all count toward your debt-to-income ratio. Keep your total DTI under 43% for conventional, and under 50% for FHA, to maintain strong approval odds.


5. Why Local Expertise Matters

Waukesha County's property taxes vary widely by city and school district. Working with a local lender means you'll get accurate estimates tailored to the exact home you want.


Final Call to Action:
Want to see exactly how much income you'd need for your dream Waukesha County home? My team can run the numbers, get you pre-approved, and help you shop with confidence.

📞 Call/text: 414-976-2654
📧 Email: azeman@uhm.com
📝 Apply online: Start Here
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🌐 www.mkemortgage.com

Union Home Mortgage
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