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Illinois Mortgage Calculator

Estimate your monthly mortgage payment in Illinois, pre-loaded with the state's 2.05% average property tax rate and local insurance costs — plus a local market guide, worked payment example, and buyer-program notes.

Median home price
$270,000
Avg property tax
2.05%
Avg insurance
$1,300/yr
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Housing market snapshot: Illinois

Illinois pricing is bifurcated: Cook County and North Shore suburbs differ sharply from downstate markets. Chicago condo and single-family dynamics each need their own payment models. At an indicative median near $270,000, Illinois remains more approachable than coastal high-cost states — but rate, insurance, and taxes still determine whether a payment fits.

Property taxes and homestead notes

Illinois's average effective property tax rate of roughly 2.05% ranks among the higher statewide averages nationally. On a median-priced home, taxes can rival or exceed the insurance line item in your payment. Illinois has among the highest effective property tax rates nationally. Cook County assessment practices and appeal cycles are a major budget item - do not use national averages for Chicago-area escrow.

Homeowners insurance in Illinois

Indicative average homeowners insurance around $1,300/year is in a typical U.S. band. Roof age, claims history, and deductibles still swing real quotes. Standard Midwestern severe weather drives claims. Older urban housing may need updates for insurability.

Worked payment example

Using Illinois's indicative median of $270,000, a 20% down payment of $54,000, a 6.75% rate, and local tax/insurance defaults, principal and interest is about $1,401 with a full monthly payment near $1,971 (including roughly $461 tax and $108 insurance). With only 5% down ($13,500), the same price point jumps to about $2,351 per month because the loan is larger and PMI is typically required — roughly $118 of that total.

A common comfort check is keeping total housing cost near 28% of gross income. At $1,971/month, that implies ballpark gross income around $84,452 per year before other debts. Run your real income and debts through our home affordability calculator rather than relying on this rule of thumb alone.

Adjust the calculator above, or open the home affordability calculator with your income and debts. Methodology details are on how we calculate.

Buyer programs to research in Illinois

  • Illinois Housing Development Authority (IHDA) programs
  • City of Chicago and suburban DPA initiatives
  • FHA loans common for first-time buyers

Eligibility, funding, and income limits change. Confirm details with the program administrator or a participating lender before relying on assistance in your offer.

Practical tips for Illinois buyers

  • Pull the actual tax bill, not just the rate - assessments drive the dollar amount.
  • Condo buyers must review special assessment history.
  • Compare collar-county taxes carefully against city living costs.

Figures on this page are educational estimates for Illinois, not a lender quote. County tax assessors, insurance agents, and licensed mortgage professionals can confirm the numbers for a specific address. See our methodology page for the formulas and assumptions behind every estimate.

Mortgage calculators for other states

Illinois mortgage FAQs

Common questions about estimating your monthly mortgage payment, PITI, PMI, and affordability.

What is the average property tax rate in Illinois?

Illinois's indicative average effective property tax rate is about 2.05% of home value per year. On a $270,000 home, that is roughly $5,535 annually, usually collected monthly through escrow. Your county bill can differ — and homestead programs may reduce what you owe.

How much is a typical mortgage payment in Illinois?

On the indicative median of $270,000 with 20% down, local tax/insurance defaults, and a 6.75% rate, a full monthly payment is about $1,971. Your quote will differ with price, credit, loan type, and exact escrow items.

Does this calculator include Illinois homeowners insurance?

Yes. We default to an indicative Illinois average near $1,300 per year ($108/month). Replace it with a real quote for your address — especially if you need wind, hurricane, wildfire, or flood endorsements.

What assistance programs should Illinois buyers know about?

Illinois Housing Development Authority (IHDA) programs. Also explore: City of Chicago and suburban DPA initiatives; FHA loans common for first-time buyers. Program rules change — confirm eligibility with the agency or a participating lender.