TaxLienSimple

The TaxLienSimple Index / Illinois

The TaxLienSimple Index · IL · 2026

Illinois Tax-Lien & Tax-Deed Investing

What Illinois statute actually pays — return, redemption and bid method — cross-referenced with the live auction inventory we track. Every figure traces to state law or a county source.

Statutes verified Jul 29, 2026

75 /100
Tier S National rank #1 of 51
The TaxLienSimple Index is a 0–100 research guide built from statutory terms and the inventory we track — not a yield, a guarantee, or investment advice. Realized returns depend on competition, redemption and your own due diligence. Verify every figure with the county before bidding.
Sale type
Tax Lien
Statutory return / penalty
up to 18% penalty per 6-month period (bid down), accruing every 6 months
Redemption period
2 to 2.5 years (2.5 yr for residential 1-6 units, 2 yr others; purchaser may extend to 3 yr)
Bid method
penalty
Sale season
generally fall outside Cook County
What you buy
tax lien annual sale; forfeiture/scavenger sale

Statutory note. The 18% is per six months, not per year — over the full redemption period the compounded return can approach the ~36%/yr figure investors quote.

78live parcels tracked
1counties with inventory
#1of 51 jurisdictions
Read the score correctly. The TaxLienSimple Index is a 0–100 research guide built from statutory terms and the inventory we track — not a yield, a guarantee, or investment advice. Realized returns depend on competition, redemption and your own due diligence. Verify every figure with the county before bidding.

Remote Investor Snapshot

Verified public-data profile for out-of-area investors — every figure below traces to the cited government source. Blank fields mean the source does not publish that value for this area (we never estimate).

Market & demographics

Population
12,757,634
5-yr population growth
-0.8% shrinking
Median household income
$78,433
Median age
38.7
Poverty rate
11.8%

Source: U.S. Census Bureau, ACS 5-Year 2022

Housing market

Median home value
$239,100
Median gross rent
$1,179/mo
Owner-occupied
66.7% 33.3% renter
Vacancy rate
8.4%

Source: U.S. Census Bureau, ACS 5-Year 2022

Property-tax burden

Median real-estate taxes
$5,055/yr
Effective property-tax rate
2.11% of home value

Source: U.S. Census Bureau, ACS 5-Year 2022

Natural-hazard risk & safety

Unemployment rate
4.6%

Source: FEMA National Risk Index (2023); U.S. Bureau of Labor Statistics, LAUS (2023 annual)

Growth & livability signals

New residential permits
16,863 units, 2023
Broadband subscription
88.1%
Bachelor's degree +
36.7%

Source: U.S. Census Bureau, Building Permits Survey (2023); U.S. Census Bureau, ACS 2022 (household broadband subscription; FCC availability not yet integrated); U.S. Census Bureau, ACS 2022 (educational attainment — school-quality proxy; NCES ratings not yet integrated)

Risk & opportunity flags

Opportunity Zone tracts
327 tax-advantaged
EPA Superfund (NPL) sites
55
EPA Brownfield sites
1,605

Source: U.S. Treasury CDFI Fund / IRS designated Opportunity Zones; U.S. EPA (SEMS National Priorities List; ACRES Brownfields)

Counties we track in Illinois

#CountyTaxLienSimple IndexLive parcels
1 Lake County S 79 78

Illinois tax sale — FAQ

What is the TaxLienSimple Index for Illinois?

Illinois scores 75/100 (Tier S), ranked #1 of 51 jurisdictions. The TaxLienSimple Index is a 0–100 research guide built from statutory terms and the inventory we track — not a yield, a guarantee, or investment advice. Realized returns depend on competition, redemption and your own due diligence. Verify every figure with the county before bidding.

How does redemption and return work in Illinois?

up to 18% penalty per 6-month period (bid down), accruing every 6 months Redemption period: 2 to 2.5 years (2.5 yr for residential 1-6 units, 2 yr others; purchaser may extend to 3 yr). The 18% is per six months, not per year — over the full redemption period the compounded return can approach the ~36%/yr figure investors quote.

What is Illinois's statutory return on a tax lien or tax deed purchase?

up to 18% penalty per 6-month period (bid down), accruing every 6 months The 18% is per six months, not per year — over the full redemption period the compounded return can approach the ~36%/yr figure investors quote.

What is the bid method for Illinois tax sales?

Illinois uses a penalty method for its tax lien sales.

Does Illinois use tax-lien auctions or tax-deed sales?

Illinois uses a tax lien system. The 18% is per six months, not per year — over the full redemption period the compounded return can approach the ~36%/yr figure investors quote.

See the actual parcels in Illinois

Browse the live tax-lien, deed and foreclosure inventory we track — search by county, redemption window and opening bid.

Browse live auction inventory →  ·  Illinois tax delinquent property list →  ·  Illinois state guide →  ·  Set a max bid →  ·  Academy: what a tax lien actually is →
The TaxLienSimple Index is a 0–100 research guide built from statutory terms and the inventory we track — not a yield, a guarantee, or investment advice. Realized returns depend on competition, redemption and your own due diligence. Verify every figure with the county before bidding.

© 2026 TaxLienSimple · The TaxLienSimple Index is compiled from state tax statutes and county treasurer/tax-collector offices; live inventory counts reflect parcels currently tracked by TaxLienSimple and update continuously. Nothing here is investment or legal advice.