Illinois Mortgage Calculator
2026Calculate your monthly mortgage payment in Illinois. Factor in IL's 2.07% average property tax rate, homeowners insurance, and PMI for an accurate Illinois home loan estimate.
Written and reviewed by Konstantin Iakovlev · Methodology · Updated
Monthly P&I
$1,733.12
Total Monthly Payment
$2,178.96
Total Interest Paid
$343,924.57
Monthly Payment Breakdown
| Loan Amount | $280,000.00 |
| Down Payment (20.0%) | $70,000.00 |
| LTV Ratio | 80.0% |
| Principal & Interest | $1,733.12 |
| Property Tax | $320.83 |
| Homeowners Insurance | $125.00 |
| Total Monthly Payment | $2,178.96 |
| Total Interest Over Life of Loan | $343,924.57 |
15-Year vs 30-Year Comparison
15yr Monthly P&I
$2,408.42
15yr Total Interest
$153,515.76
Interest Savings (15yr)
$190,408.81
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How does buying a home in Illinois work tax-wise?
Illinois's average effective property tax rate is 2.07% of assessed value (2026), among the highest in the nation. On a $400,000 home, that translates to roughly $8,280 per year, billed by your county or municipality. Homestead exemptions, senior or veteran reductions, and assessment caps can reduce the effective rate for primary residences in many jurisdictions.
At the federal level, mortgage interest is deductible if you itemize, capped at the interest on the first $750,000 of acquisition debt (or $375,000 for married filing separately). State and local taxes (SALT), including property tax, are deductible up to a combined $40,000 cap for 2026 under OBBBA (raised from $10,000), with a 30% phase-down on MAGI above $500,000 (floor $10,000); the cap is inflation-indexed through 2029 before reverting to $10,000 in 2030. Closing costs typically run 2–5% of the loan amount; transfer taxes and recording fees vary by county.
Illinois also assesses state income tax, which interacts with your federal SALT deduction. Use this calculator to estimate your monthly principal, interest, taxes, and insurance (PITI) payment given your loan terms and Illinois's property-tax rate.
Illinois mortgage market: foreclosure, transfer tax, and refinance rules
- Median home price (Q4 2025)
- $285,000
- Foreclosure type
- Judicial (court-supervised)
- Real-estate transfer tax
- $0.50 per $500 state ($1/$1,000) + $0.25 per $500 county ($0.50/$1,000) + Chicago $5.25/$500 transfer tax
Illinois uses judicial foreclosure with mandatory mediation in Cook County and several others — typical timeline from filing to sale is 12–18 months, among the longest in the country. Real-estate transfer taxes stack: $1 per $1,000 state + $0.50 per $1,000 county + steep local rates (Chicago adds $5.25 per $500 = $10.50/$1,000 buyer-side, with a 2024 voter-rejected expansion). Median home price of about $285,000 means most buyers stay within conforming limits, but Chicago North Side and North Shore buyers often need jumbo.
Illinois Mortgage & Property Facts (2026)
| Avg. Property Tax Rate | 2.07% |
| State Income Tax | 4.95% (flat) |
| State Sales Tax | 6.25% |
| Estate Tax | Yes (exemption: $4,000,000) |
Illinois mortgage — frequently asked questions
What are typical Illinois mortgage rates and considerations?
IL mortgage rates track national averages (6.5%-7.5% for 30-year conventional in 2026). IL median home price of $285K keeps most IL buyers within the $524,225 conforming limit, except Chicago North Side and North Shore where homes routinely exceed $700K. Illinois Real Estate Transfer Tax: $1/$1,000 state + $0.50/$1,000 county + steep local. Chicago adds $5.25/$500 ($10.50/$1,000 buyer-side) — highest local transfer tax in the country.
What is the Chicago Real Estate Transfer Tax?
Chicago imposes the highest local real estate transfer tax in the country: $5.25 per $500 of consideration ($10.50/$1,000), paid by the BUYER. So on a $500K Chicago home: $5,250 in city RETT alone, plus $500 state + $250 county = $6,000 total. A 2024 voter ballot measure ("Bring Chicago Home") proposed expanding this to a graduated structure with rates up to 3% on properties over $1M, but voters rejected it. Current rates remain in effect.
Does Illinois have first-time homebuyer assistance?
Yes. IHDA (Illinois Housing Development Authority) Access programs: (1) Access Forgivable — $6,000 DPA forgiven over 10 years for buyers under 80% AMI. (2) Access Deferred — $7,500 0%-interest second forgiven on sale 30 years out. (3) Access Repayable — $10,000 second mortgage at 1% interest amortized over 10 years. (4) Opening Doors — additional $6,000 grant in qualifying neighborhoods. (5) MCC converting 25% of mortgage interest to federal tax credit (capped $2K/year).
How does Illinois foreclosure work?
Illinois uses judicial foreclosure with mandatory mediation in Cook County and several others — typical timeline from filing to sale is 12-18 months, among the longest in the country. The 2010-2014 foreclosure crisis aftermath led IL to enact strong borrower protections including mandatory mediation, foreclosure-prevention counseling, and 30-day grace period notices. Sheriff's sales held monthly; IL has 6-month redemption period after sale (longer for owner-occupied).