Guide · schedules checked Nov 8, 2026
Illinois impact fees by county
As of Nov 9, 2026, Groundwork has the published fee schedule for 3 jurisdictions in Illinois, each from the jurisdiction's own document. For one new single-family home, the 3 impact fee schedules in force run from $1,360.59 for Kane County to $10,453 for Village of Island Lake. Illinois counties may charge a road improvement impact fee under the Road Improvement Impact Fee Law.
Fees on one new single-family home
Status on Nov 9, 2026. A per-square-foot tax is shown with its total for a 2,000 sq ft home.
| Who charges it | One new home | Date | Source |
|---|---|---|---|
| Kane CountyImpact fee | $1,360.59–$1,368.06 by service area | From Apr 12, 2022 to Apr 11, 2027 | Source |
| City of PlanoImpact fee | $6,750 | Since Mar 3, 2016 | SourceSource 2 |
| Village of Island LakeImpact fee | $5,832–$10,453 by bedrooms | Since Apr 11, 2025 | Source |
A county or city not named on this page is not tracked yet, which does not mean it charges nothing.
What each figure covers
- Kane County: Road Improvement Impact Fee (Ord. 22-27), single-family detached dwelling, reduced fee at the 50% multiplier in force April 12, 2022 through April 11, 2027 (gross fee $2,721.19-$2,736.12) by service area. Commercial: General office $2,084.32-$2,095.75 per 1,000 sq ft (reduced fee).
- City of Plano: Transition fees on a new single-family home, each paid before the building permit: school $5,400 + fire protection district $1,000 + library $350; they apply to lots platted after each chapter took effect, and land-cash donations set at subdivision are separate. Sources: Plano City Code Title 6 Chapter 12 School Transition Fee (Ord. 2016-4; code current through Ord. 2026-10, passed July 27, 2026); Plano City Code Title 6 Chapter 14 Fire Protection District Transition Fee (Ord. 2016-1); the library fee is Chapter 11 (Ord. 2015-29).
- Village of Island Lake: Impact fees on a new home in the E-1 and R-1 to R-5 districts, by bedrooms: school $1,066 (2 bedrooms), $3,317 (3) or $5,687 (4) + library $266 + fire district $250 + municipal $2,500 + lake management $500 + park land/open space $1,000 + fire protection district $250 per dwelling unit (the schedule lists both $250 fire lines; both are counted).
The law
Illinois counties may charge a road improvement impact fee under the Road Improvement Impact Fee Law. 605 ILCS 5/5-901.
Every figure is the jurisdiction's own published schedule, linked in its row; confirm with the jurisdiction before you rely on it. Florida: Florida impact fees by county.
Questions
Does Illinois charge impact fees on a new home?
Illinois counties may charge a road improvement impact fee under the Road Improvement Impact Fee Law. Whether a home pays, and how much, depends on the county, city or utility; the table lists each schedule Groundwork has checked.
Which Illinois jurisdiction in the table charges the most?
Of the 3 impact fee schedules in force on Nov 9, 2026, Village of Island Lake is highest, at up to $10,453 for one new single-family home; source: Village of Island Lake Ordinance No. 1699-25: Title 1 Chapter 16 Schedule of Fees, Fines and Penalties (passed April 10, approved April 11, 2025).
Do I pay these fees when I buy vacant land?
No. They are due while a new home is built: at the building permit in most places, before the certificate of occupancy in some, and a utility fee when the home connects to water and sewer. They belong in the cost of building, not the land price.
Does a county missing from the table charge nothing?
Not necessarily. A county or city that is not listed has not been checked yet; ask its building or planning department.