Compare / Arizona vs Colorado

Arizona vs Colorado 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, Colorado 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

Colorado5.1/10

System:: lien
Max rate:: Fed discount rate +9 pts, set each Sept 1 (14% for 2025); premium bids earn 0%
Redemption:: 3yr from sale before treasurer's deed application

Head-to-head: 9 dimensions

Effective yieldArizona wins

Arizona5

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

Colorado4

14% (2025) rate but premium bids earn nothing and are not refunded

Penalty structuretie

Arizona3

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

Colorado3

Simple interest only; rate reset yearly at discount rate +9 pts (39-12-103)

Redemption speedtie

Arizona2

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

Colorado2

3yrs from sale before treasurer's deed application

Auction accessArizona wins

Arizona9

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

Colorado8

Most counties run online sales (RealAuction/GovEase); county-level auctions

Low competitionColorado wins

Arizona3

Heavily institutional online sales; funds dominate Maricopa/Pima

Colorado4

Online premium bidding is aggressive; premiums erode net yield

Low capital entrytie

Arizona9

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

Colorado9

Certificates sell at taxes+fees; small liens plentiful in rural counties

Process safetyArizona wins

Arizona5

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

Colorado4

HB24-1056 deed path now ends in public auction; holder may get cash, not land

Legal stabilityArizona wins

Arizona9

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

Colorado4

Post-Tyler HB24-1056 (eff. 7/2024) rewrote the treasurer's deed process

OTC availabilityArizona wins

Arizona9

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

Colorado8

County-held certificates assignable OTC from treasurers year-round

Choose Arizona if…

you want stronger legal stability — ARS 42-18101 to 42-18204 regime stable for decades; predictable case law

Choose Colorado if…

it doesn't clearly out-score Arizona on any single dimension — see the full Colorado guide.

Frequently asked

Is Arizona or Colorado 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, Colorado on others.

Which state has the higher tax lien return, Arizona or Colorado?

Arizona: 16%/yr simple bid-down. Colorado: Fed discount rate +9 pts, set each Sept 1 (14% for 2025); premium bids earn 0%. On realistic effective yield after competition, Arizona scores higher (5 vs 4).

Which has the shorter redemption period?

Arizona allows 3yr min 10yr max; Colorado allows 3yr from sale before treasurer's deed application. Shorter redemption recycles your capital faster.

Go deeper

Full Arizona guide Full Colorado guide All 51 states (dataset)

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