Illinois mortgage calculator
Estimate your monthly payment for a home in Illinois, with property tax at the state average of 2.01% and home insurance included. Rates use the 7.4% national 30-year average from Freddie Mac (week of October 8, 2026).
Estimated monthly payment
- Loan amount
- $210,640
- Down payment
- $52,660
- Interest over 30 years
- $314,394
- Income needed (28% guideline)
- $85,166 a year
Estimate only. Mortgage insurance (PMI) is added when the down payment is under 20%. Real taxes, insurance and lender fees vary by property.
How this is calculated. Principal and interest use the standard fixed-rate loan formula. Property tax uses the Illinois average effective rate: the median real estate tax paid divided by the median home value. Home insurance is a general estimate that you can change.
Sources: Freddie Mac mortgage rate survey, week of October 8, 2026; U.S. Census Bureau American Community Survey, 2020–2024. Updated October 2026. Full methodology.
What a typical home costs per month in Illinois
A home valued at the Illinois median of $263,300 (the Census Bureau's figure for owner-occupied homes), bought with 20% down at 7.4% over 30 years, comes to about $1,987 a month. That is $1,458 in principal and interest, $441 in property tax and $88 in insurance.
Over a year that is 28.6% of the state's median household income of $83,390. Keeping housing costs near 28% of gross income would take a household income of about $85,166.
Property tax in Illinois
Illinois has the 2nd highest effective property tax rate of the 50 states at 2.01%, above the typical state rate of 0.80%. The median Illinois homeowner pays $5,298 a year.
| Home price | Tax per year | Tax per month |
|---|---|---|
| $200,000 | $4,024 | $335 |
| $300,000 | $6,036 | $503 |
| $400,000 | $8,049 | $671 |
| $500,000 | $10,061 | $838 |
| $750,000 | $15,091 | $1,258 |
These figures apply the statewide average rate. Rates differ between counties and taxing districts, and some homes qualify for exemptions.
States with similar property tax rates
- New Jersey2.11% (1st highest)
- Connecticut1.81% (3rd highest)
- New Hampshire1.66% (4th highest)
- Vermont1.59% (5th highest)
- New York1.55% (6th highest)
- Texas1.49% (7th highest)
Questions about Illinois mortgage payments
What is the property tax rate in Illinois?
The average effective property tax rate in Illinois is 2.01%. Census Bureau data shows homeowners paid a median of $5,298 a year on homes with a median value of $263,300. Your own rate depends on your county, city and school district.
How much is the monthly mortgage payment on a median-value home in Illinois?
About $1,987 a month including property tax and insurance, assuming 20% down at 7.4% on a 30-year loan. Principal and interest alone come to $1,458.
How much income do I need to buy a home in Illinois?
A common guideline keeps housing costs under 28% of gross income. For the median-value home above, that works out to about $85,166 a year. Lenders also look at debts, credit score and savings, so your own number may differ.
Does this calculator include property tax and insurance?
Yes. It adds property tax at 2.01% of the home price and home insurance at 0.4% of the home price as a starting estimate. Change either number to match a real quote. Mortgage insurance is added automatically when the down payment is under 20%.
Last updated October 2026. See the methodology for sources and limits.