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Compare / Arizona vs Illinois

Arizona vs Illinois Tax Lien Investing (2026)

Verdict

For a retail investor, Arizona edges it overall (6/10 vs 5.1/10). The biggest single difference is legal stability: Arizona scores 9, Illinois scores 4. Neither is "best" for everyone — match the state to your goal below.

Arizona6/10
System:
lien
Max rate:
16%/yr simple bid-down
Redemption:
3yr min 10yr max
Illinois5.1/10
System:
lien
Max rate:
9% max penalty bid per 6-month period (P.A. 102-363, eff. 1-1-2022)
Redemption:
1yr (vacant/commercial) to 2.5yr (default)

Head-to-head: 9 dimensions

Effective yieldIllinois wins
Arizona5

16% ceiling but big-county CP rates bid to low single digits online

Illinois7

Penalty repeats each 6mo (max 9%/period since 2022) but Cook bids near 0%

Penalty structureIllinois wins
Arizona3

Simple interest at bid rate from March 1 (ARS 42-18153); no penalty floor

Illinois7

Full 6-month penalty tranche owed even if redeemed on day 1 of period

Redemption speedIllinois wins
Arizona2

3yr minimum hold before Superior Court foreclosure (ARS 42-18201)

Illinois4

2.5yr default (1yr vacant/commercial); slow capital recycle

Auction accessArizona wins
Arizona9

County sales online via RealAuction (Pima 2026); near-statewide coverage

Illinois5

County-by-county sales with registration/deposits; Cook uses R.A.M.S. sealed bids

Low competitiontie
Arizona3

Heavily institutional online sales; funds dominate Maricopa/Pima

Illinois3

Institutional buyers dominate; penalty bid to 0% on quality parcels

Low capital entryArizona wins
Arizona9

CP liens start at back taxes; many certificates a few hundred dollars

Illinois7

Individual liens can be small, but deposits and registration add friction

Process safetyArizona wins
Arizona5

Judicial foreclosure required after 3yrs; well-worn process but adds cost

Illinois3

Strict take-notice/petition traps; sale-in-error can void the investment

Legal stabilityArizona wins
Arizona9

ARS 42-18101 to 42-18204 regime stable for decades; predictable case law

Illinois4

Max bid halved to 9% in 2022; post-Tyler litigation still reshaping code

OTC availabilityArizona wins
Arizona9

State CP assignments sold OTC online Apr 1-Dec 15 (Pima via RealAuction)

Illinois6

Unsold/forfeited liens resold via county trustee lists

Choose Arizona if…

  • you want stronger legal stability — ARS 42-18101 to 42-18204 regime stable for decades; predictable case law
  • you want stronger auction access — County sales online via RealAuction (Pima 2026); near-statewide coverage
  • you want stronger otc availability — State CP assignments sold OTC online Apr 1-Dec 15 (Pima via RealAuction)

Choose Illinois if…

  • you want stronger penalty structure — Full 6-month penalty tranche owed even if redeemed on day 1 of period
  • you want stronger effective yield — Penalty repeats each 6mo (max 9%/period since 2022) but Cook bids near 0%
  • you want stronger redemption speed — 2.5yr default (1yr vacant/commercial); slow capital recycle

Frequently asked

Is Arizona or Illinois better for tax lien investing?
Arizona scores higher overall (6/10 vs 5.1/10) on our nine-dimension rubric. But the right pick depends on your goal — Arizona leads on legal stability, Illinois on penalty structure.
Which state has the higher tax lien return, Arizona or Illinois?
Arizona: 16%/yr simple bid-down. Illinois: 9% max penalty bid per 6-month period (P.A. 102-363, eff. 1-1-2022). On realistic effective yield after competition, Illinois scores higher (5 vs 7).
Which has the shorter redemption period?
Arizona allows 3yr min 10yr max; Illinois allows 1yr (vacant/commercial) to 2.5yr (default). Shorter redemption recycles your capital faster.
Go deeper
Full Arizona guideFull Illinois guideAll 51 states (dataset)
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