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Mortgage Calculator by State — Property Taxes, Insurance, and True Monthly Cost

Last updated: April 20267 min readCalculator Tools

A $400,000 home costs $2,661/month in principal and interest at 7%. But your real monthly payment ranges from $3,000 in Hawaii to $4,200 in New Jersey — because property taxes and insurance vary by $500-1,500/month depending on where you live. The mortgage calculator gives you P&I. The tables below give you the full state-by-state picture.

Monthly Cost of a $400K Home by State (7%, 30yr, 20% Down)

Base P&I payment: $2,129/month. Here is what taxes and insurance add:

StateProperty Tax RateMonthly TaxMonthly InsuranceTotal Monthly
Hawaii0.29%$97$60~$2,286
Alabama0.37%$123$155~$2,407
Colorado0.49%$163$175~$2,467
Utah0.52%$173$85~$2,387
California0.71%$237$130~$2,496
Florida0.80%$267$350~$2,746
Arizona0.60%$200$135~$2,464
Georgia0.83%$277$165~$2,571
Ohio1.53%$510$85~$2,724
Michigan1.38%$460$110~$2,699
Texas1.60%$533$210~$2,872
New York1.62%$540$140~$2,809
Pennsylvania1.49%$497$95~$2,721
Illinois2.07%$690$125~$2,944
Connecticut2.01%$670$155~$2,954
New Jersey2.23%$743$110~$2,982

Insurance estimates are state averages for a $400K home. Actual rates depend on location, coverage, and claims history. Florida and Louisiana insurance is especially high due to hurricane risk.

Calculate your P&I payment, then add your state costs from the table.

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The $1,000/Month Difference

The gap between the cheapest and most expensive states for the same $400K home:

Where you buy matters as much as what you buy. A $400K home in New Jersey costs the same monthly as a $500K+ home in a low-tax state.

States With No Income Tax (But Watch the Property Tax)

StateIncome TaxProperty TaxInsuranceNet Savings?
Texas✓ None✗ 1.60% (high)~$210/mo~Wash — high property tax offsets no income tax
Florida✓ None~0.80% (moderate)✗ $350/mo (high)~Depends — insurance eats the savings
Nevada✓ None~0.53% (low)~$95/mo✓ Real savings for homeowners
Washington✓ None~0.87% (moderate)~$95/mo✓ Moderate — depends on home price
Tennessee✓ None~0.63% (low)~$155/mo✓ Real savings
Wyoming✓ None~0.55% (low)~$120/mo✓ Real savings (but low population)
New Hampshire✓ None✗ 1.93% (very high)~$95/mo✗ Property tax is brutal

How to Calculate Your State-Specific Cost

  1. Use the mortgage calculator for P&I (loan amount, rate, term)
  2. Look up your county/state property tax rate (Google "[county] property tax rate")
  3. Multiply home value by tax rate, divide by 12 for monthly tax
  4. Get a homeowner insurance quote for your address (or estimate from table above)
  5. Add P&I + monthly tax + monthly insurance = your true monthly cost
  6. If under 20% down, add PMI ($100-300/month depending on loan size)

Related Mortgage Tools

Start with P&I. Add your state costs. Know your true monthly payment.

Open Mortgage Calculator
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