LienSimple
Get Started
Compare / Arizona vs Iowa

Arizona vs Iowa Tax Lien Investing (2026)

Verdict

For a retail investor, Iowa edges it overall (6.4/10 vs 6/10). The biggest single difference is effective yield: Arizona scores 5, Iowa scores 8. 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
Iowa6.4/10
System:
lien
Max rate:
2%/month 24%/yr
Redemption:
1yr 9mo

Head-to-head: 9 dimensions

Effective yieldIowa wins
Arizona5

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

Iowa8

2%/mo (24%/yr) never bid down; bidding is on % ownership instead

Penalty structureIowa wins
Arizona3

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

Iowa6

Fraction of a month counts as a full month; otherwise straight interest

Redemption speedIowa wins
Arizona2

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

Iowa5

1yr9mo before 90-day expiration notice can be served (~2yr total)

Auction accessArizona wins
Arizona9

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

Iowa6

Annual June sale in all 99 counties; many now run online

Low competitionIowa wins
Arizona3

Heavily institutional online sales; funds dominate Maricopa/Pima

Iowa4

Funds flood registrations; random allocation with 1%-ownership bids

Low capital entrytie
Arizona9

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

Iowa9

Certificates from a few hundred dollars; subsequent taxes also earn 24%

Process safetyIowa wins
Arizona5

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

Iowa6

90-day notice then deed; undivided-interest wins complicate title

Legal stabilityArizona wins
Arizona9

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

Iowa8

Ch.446-448 sale/redemption mechanics stable for decades

OTC availabilityArizona wins
Arizona9

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

Iowa6

Adjourned/public-bidder certificates assignable from county treasurers

Choose Arizona if…

  • 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 Iowa if…

  • you want stronger effective yield — 2%/mo (24%/yr) never bid down; bidding is on % ownership instead
  • you want stronger penalty structure — Fraction of a month counts as a full month; otherwise straight interest
  • you want stronger redemption speed — 1yr9mo before 90-day expiration notice can be served (~2yr total)

Frequently asked

Is Arizona or Iowa better for tax lien investing?
Iowa scores higher overall (6.4/10 vs 6/10) on our nine-dimension rubric. But the right pick depends on your goal — Arizona leads on auction access, Iowa on effective yield.
Which state has the higher tax lien return, Arizona or Iowa?
Arizona: 16%/yr simple bid-down. Iowa: 2%/month 24%/yr. On realistic effective yield after competition, Iowa scores higher (5 vs 8).
Which has the shorter redemption period?
Arizona allows 3yr min 10yr max; Iowa allows 1yr 9mo. Shorter redemption recycles your capital faster.
Go deeper
Full Arizona guideFull Iowa guideAll 51 states (dataset)
Related comparisons
Alabama vs Arizona →Arizona vs Colorado →Arizona vs Florida →Arizona vs Georgia →Arizona vs Illinois →Arizona vs Indiana →