Calculate your monthly mortgage payment in Illinois including principal, interest, and Illinois's average property tax rate of 2.23%.
Illinois Property Tax Note: Illinois has the highest average effective property tax rate of any state at 2.23%, driven largely by high property taxes in the Chicago metro area and suburban Cook County. This meaningfully increases the monthly cost of homeownership compared to most other states. Illinois does offer homestead exemptions and senior freeze programs that can reduce assessed values for qualifying homeowners.
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Illinois average: 2.23%
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Illinois Monthly Payment
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Median Illinois home ($267,000) — 20% down — 7% rate — 30yr
Component
Monthly
Annual
Principal & Interest
$1,421.09
$17,053
Property Tax (2.23%)
$496.18
$5,954
Homeowners Insurance
$150.00
$1,800
Total PITI
$2,067.26
$24,807
Total interest over 30yr: $297,991. PMI not included.
Monthly property tax on a $400,000 home by state
State
Avg Rate
Monthly/$400k
Alabama
0.41%
$136.67
Alaska
1.04%
$346.67
Arizona
0.62%
$206.67
Arkansas
0.62%
$206.67
California
0.76%
$253.33
Colorado
0.51%
$170.00
Connecticut
1.79%
$596.67
Delaware
0.57%
$190.00
Florida
0.89%
$296.67
Georgia
0.92%
$306.67
Hawaii
0.29%
$96.67
Idaho
0.69%
$230.00
Illinois ★
2.23%
$743.33
Indiana
0.85%
$283.33
Iowa
1.57%
$523.33
Kansas
1.41%
$470.00
Kentucky
0.86%
$286.67
Louisiana
0.55%
$183.33
Maine
1.09%
$363.33
Maryland
1.09%
$363.33
Massachusetts
1.14%
$380.00
Michigan
1.54%
$513.33
Minnesota
1.12%
$373.33
Mississippi
0.81%
$270.00
Missouri
1.01%
$336.67
Montana
0.84%
$280.00
Nebraska
1.73%
$576.67
Nevada
0.55%
$183.33
New Hampshire
1.93%
$643.33
New Jersey
2.23%
$743.33
New Mexico
0.80%
$266.67
New York
1.72%
$573.33
North Carolina
0.80%
$266.67
North Dakota
0.98%
$326.67
Ohio
1.53%
$510.00
Oklahoma
0.88%
$293.33
Oregon
0.87%
$290.00
Pennsylvania
1.49%
$496.67
Rhode Island
1.53%
$510.00
South Carolina
0.57%
$190.00
South Dakota
1.22%
$406.67
Tennessee
0.67%
$223.33
Texas
1.60%
$533.33
Utah
0.52%
$173.33
Vermont
1.83%
$610.00
Virginia
0.87%
$290.00
Washington
0.98%
$326.67
Washington DC
0.55%
$183.33
West Virginia
0.59%
$196.67
Wisconsin
1.76%
$586.67
Wyoming
0.61%
$203.33
Illinois has the highest average effective property tax rate of any state at 2.23%, driven largely by high property taxes in the Chicago metro area and suburban Cook County. This meaningfully increases the monthly cost of homeownership compared to most other states. Illinois does offer homestead exemptions and senior freeze programs that can reduce assessed values for qualifying homeowners.
Median home price: $267,000. Average property tax: 2.23%. Cost of living index: 96 (US avg = 100).
The average effective property tax rate in Illinois is 2.23%. This means on a $267,000 home, you would pay approximately $5,954/year ($496.18/month) in property taxes. Note that actual property taxes are based on the county-assessed value, which may differ from the purchase price, and individual rates vary by county.
At the Illinois median home price of $267,000 with 20% down and a 7% rate, total monthly housing costs (PITI) are approximately $2,067.26. Using the 28% housing-to-income rule, you would need a gross monthly income of about $7,383.08, or $88,597/year. With less down payment or higher home price, the required income increases.
Illinois is a common law (equitable distribution) state. Spouses can own property separately, and lenders typically evaluate only the borrower(s) named on the mortgage application.
A 30-year mortgage has lower monthly payments but you pay significantly more interest over time. For example, on a $213,600 loan at 7%, monthly P&I is $1,421.09 (30yr) vs. $1,919.90 (15yr). Choose 30-year if cash flow is tight; choose 15-year if you can comfortably afford the higher payment.
Beyond the mortgage payment, budget for: (1) Closing costs — typically 2–5% of the loan amount at purchase; (2) Home inspection — $300–$600; (3) Property taxes — $5,954/year at Illinois average rates on a $267,000 home; (4) Homeowners insurance — $1,200–$2,400/year; (5) HOA fees if applicable; (6) Maintenance reserve — budget 1–2% of home value annually.
Illinois Mortgage Math: Property Tax, Insurance, and PITI
Your Illinois mortgage payment has four components — the PITI breakdown: Principal, Interest, Taxes, and Insurance. Principal and interest are determined by your loan amount, rate, and term. Property tax and homeowners insurance are usually escrowed monthly. In Illinois, the average effective property tax rate is 2.23% — above the US average of 1.10%.
On the median Illinois home ($267,000), the property tax line alone runs roughly $5,954 annually — about $496 per month before factoring in any local supplemental levies. Homeowners insurance typically adds $1,200–$2,400/year depending on coverage and risk profile, with hurricane/wildfire-prone areas paying more.
Illinois Home Prices in National Context
The median home price in Illinois is $267,000, 36.3% below the US median of $419,200. Relative to Illinois's median household income of $72,563, the median home costs about 3.7× annual income — a useful affordability benchmark. Home-price-to-income ratios above 5× typically signal a stretched market; below 3× indicates affordability headroom.
Illinois has the highest average effective property tax rate of any state at 2.23%, driven largely by high property taxes in the Chicago metro area and suburban Cook County. This meaningfully increases the monthly cost of homeownership compared to most other states. Illinois does offer homestead exemptions and senior freeze programs that can reduce assessed values for qualifying homeowners. Local variation within Illinois can be substantial — coastal/metro counties typically run well above the state median, while inland and rural counties can sit far below. Use the calculator above with your specific target price, and verify the property tax line by looking up the assessed value and millage rate for your target county.
Affordability Math: How Much Home Can You Actually Carry?
Conventional underwriting caps total housing costs at 28% of gross monthly income (the "front-end" ratio) and total debt at 36%–43% (the "back-end" ratio). On the Illinois median household income of $72,563, that's a maximum housing budget of about $1,693 per month. With Illinois's higher-than-average property taxes, that budget supports a mortgage in the range of $181,408–$253,971 at current 30-year fixed rates.
The 20% down payment is a useful benchmark — it eliminates private mortgage insurance (PMI) and signals creditworthiness — but isn't required. FHA loans accept 3.5% down with a credit score of 580+; VA loans (eligible veterans) and USDA loans (rural areas) can offer 0% down. Each path has tradeoffs in upfront fees, ongoing insurance, and rate competitiveness; run the math both ways before committing.
Closing Costs and Ongoing Ownership Costs in Illinois
Beyond the down payment, budget 2%–5% of the loan amount for closing costs: lender origination fees, title insurance, appraisal, recording fees, prepaid taxes and insurance, and (in some states) transfer taxes. On a $213,600 loan, that's roughly $6,408–$10,680 due at closing. Some sellers will credit closing costs in soft markets — always ask.
Plan for ongoing maintenance reserves of 1%–2% of home value annually — about $4,005/year on the Illinois median home. HOA dues (if applicable), utilities, and major capital expenses (roof, HVAC, hot water heater) accumulate. The all-in cost of homeownership in Illinois typically runs 1.3×–1.5× the mortgage payment alone once tax, insurance, maintenance, and major repairs are included over a typical holding period.