Arizona Property Tax Appeal Guide | Property Tax Edge
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Arizona

Southwest · 15 counties

Complete property tax appeal guide for Arizona homeowners — rates, deadlines, exemptions, and step-by-step appeal instructions.

Arizona Department of RevenueModerate to Appeal
0.48%
Effective Tax Rate
Rank #48 nationally
10%
Assessment Ratio
10% of market value (residential)
$394,500
Median Home Value
latest Census/ACS estimate
$1,879
Median Annual Tax
Per year
1

10% assessment ratio — multiply assessed value by 10 to get implied market value

2

LPV cap limits annual increases to 5% for owner-occupied homes

3

Two-level appeal: county assessor first, then State Board

Appeal Deadline

60 days after the notice of value to the assessor — filed in the VALUATION year, one year ahead of the tax year

Arizona's appeal calendar runs a full year ahead of the tax year it affects: the notice of value you receive in early 2026 sets your 2027 taxes, and that is the one you appeal now. Petition the assessor within 60 days of the notice (A.R.S. §42-16051(D)), then 25 days to the County Board of Equalization (§42-16056). The December 15 date applies ONLY if you skip the administrative route and go directly to Tax Court (§42-16201(B)); if you did petition the assessor, your court deadline is 60 days from the last administrative decision instead.

Verified August 2026 against the official source · official source · always confirm the current date with your county

Understanding Arizona's Assessment Ratio

10%
10% of market value (residential)

Arizona uses a 10% assessment ratio, meaning your assessed value is set at 10% of your property's estimated market value.

To find your implied market value: Divide your assessed value by 0.1.
Example: Assessed value of $39,450 ÷ 0.1 = $394,500 implied market value

⚠ Common Mistake: Never compare your assessed value directly to comparable sale prices in Arizona. Always convert to implied market value first.

How to Appeal Your Property Tax in Arizona

1

Review Notice of Value (mailed by March 1)

2

File petition with County Assessor within 60 days of the notice of value

3

If denied, appeal to the State Board of Equalization (Maricopa and Pima counties) or county Board of Equalization

4

Further appeal to Tax Court by December 15

Appeal Body
County Assessor → State Board of Equalization → Tax Court

Exemptions & Relief Programs

Homestead Exemption
No traditional homestead; Owner-Occupied Classification reduces ratio to 10%
Senior / Disabled Exemption
Senior Property Valuation Protection (freeze) for 65+ with income limits
Value Protection
Limited Property Value (LPV) cannot increase more than 5% per year for owner-occupied homes

Key Statutes & Legal References

§
A.R.S. §42-15003 (10% residential assessment ratio)
§
A.R.S. §42-16051 (appeal process)
§
A.R.S. §42-17301 (senior freeze)

Arizona Property Tax Code

Governing Code
Arizona Revised Statutes — Title 42 (Taxation)
Assessment Authority
County Assessor
Appeal Board
County Board of Equalization
Assessment Cycle
Annual (notices mailed in February)

Key Statutes

A.R.S. §42-11001
Definitions
Defines key terms including 'full cash value,' 'limited property value,' and 'legal class.'
A.R.S. §42-11054
Residential Property Classification
Classifies owner-occupied residential property (Class 3) at 10% assessment ratio.
A.R.S. §42-16051
Notice of Value
Requires county assessors to mail notices of value by February 28 each year.
A.R.S. §42-16105
Petition for Review
Establishes the petition process for appealing assessed values to the County Board of Equalization.

Major Exemptions

Owner-Occupied Residential
Primary residence
Reduced assessment ratio (10%)
Senior Valuation Protection
Age 65+, income and ownership requirements
Frozen assessed value
Disability Exemption
Totally disabled, income limits
Up to $3,965 reduction
Official Code

Arizona Appeal Tools

Use these tools to build your appeal case for Arizona:

Over-Assessment Calculator
County Appeal Guides
Jurisdiction Intelligence
CAD Interactive Map
Sales Comparables Tool
Deadline Manager

Quick Arizona Calculator

$
$
Assessment ratio: 10% · Rate: 0.48%

Quick Links

Over-Assessment Calculator
Find a Consultant
Deadline Manager
Community Forum
Moderate to Appeal
10% ratio requires conversion math; two-level appeal system adds steps

Taxing Authority

County Assessor
Assessment Frequency
Annual

Ready to Appeal Your Arizona Property Tax?

Use our free tools to calculate your potential savings, find a local consultant, and manage your appeal deadlines.

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Arizona's assessment ratio study

How closely Arizona assessors' values actually track real sale prices — and whether you can use that in an appeal.

Usable as supporting evidenceLatest study: 2016

Sales Ratio Study / Sales Ratio Summary

Median ratio
81.4%
COD
11.5

Cite a county median above the 82% residential target or a COD above the 15%/20% standard when appealing full cash value to the assessor and then the County or State Board of Equalization.

Official Arizona dataCompare all 50 states + DC

What's changing in Arizona

Enacted 2026 legislation and certified ballot measures. Reviewed August 2026 — always confirm with your county before relying on a change that hasn't taken effect yet.

EnactedSB 1749Action may be needed

Business personal property exemption raised to $500,000

Raises the business personal property exemption from $269,905 to $500,000, taking most small businesses out of the tax entirely. Also fully exempts the property of 100% service-connected disabled veterans by removing the previous value cap.

Effective: January 1, 2026taxfoundation.org

Supplemental, Escape & Corrected Bills in Arizona

Arizona has NO supplemental assessment: buying a home or finishing construction mid-year does not generate an extra prorated bill — new construction is picked up on the next regular roll (valued under the 'Rule B' ratio for its first year). Off-cycle bills arrive only as corrections/omitted-property notices under the A.R.S. §42-16251 error statutes, limited to the current plus 3 prior years, with a 30-day window to dispute.

Notice of Proposed Correction (property tax error, including omitted property)

A tax officer (assessor, DOR, treasurer) determines property was assessed improperly due to a 'property tax error' — including property that was omitted from the roll, misreported, misclassified, or clerically mis-entered. Sent by certified mail if it increases value.

Appeal window: Taxpayer has 30 days after receiving the Notice of Proposed Correction to file a written response consenting to or disputing it (silence = consent; one 30-day extension available). If disputed and not resolved, the matter goes to the State Board of Equalization or county board; a party dissatisfied with the board's decision may appeal to tax court within 60 days after the decision is mailed.30 days

Omitted property (handled through error-correction statutes)

Property discovered that was never entered on the roll. Arizona has no separate 'escape assessment' billing track — omitted property is a defined 'property tax error' and is added via the Notice of Proposed Correction process above, with the same 30-day response right and 3-prior-year limit.

Appeal window: Same as Notice of Proposed Correction: 30 days to dispute, then board hearing, then 60 days to tax court.30 days

Full details & sources →Got one of these bills? Track its deadline →
AI Evidence Packet · $49

Build your Arizona appeal evidence packet

Our AI assembles a professional evidence packet — cover letter, comparable-sales analysis, assessment ratio check, hearing script, and your state's filing instructions. $49 one-time, no subscription, no percentage of your savings. You file it with your county; we don't file or represent you.

We prepare the evidence — you submit it. The $49 is charged when the packet is generated, not when an appeal succeeds. See a sample packet.

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Arizona property tax appeals — frequently asked questions

When is the property tax appeal deadline in Arizona?+

In Arizona, the appeal window is 60 days after the notice of value to the assessor — filed in the VALUATION year, one year ahead of the tax year. Arizona's appeal calendar runs a full year ahead of the tax year it affects: the notice of value you receive in early 2026 sets your 2027 taxes, and that is the one you appeal now. Petition the assessor within 60 days of the notice (A.R.S. §42-16051(D)), then 25 days to the County Board of Equalization (§42-16056). The December 15 date applies ONLY if you skip the administrative route and go directly to Tax Court (§42-16201(B)); if you did petition the assessor, your court deadline is 60 days from the last administrative decision instead. Always confirm the exact date with your local county assessor or appeal board, as it can vary by county.

How do I appeal my property tax assessment in Arizona?+

The general process: 1) Review Notice of Value (mailed by March 1); 2) File petition with County Assessor within 60 days of the notice of value; 3) If denied, appeal to the State Board of Equalization (Maricopa and Pima counties) or county Board of Equalization; 4) Further appeal to Tax Court by December 15. Appeals are heard by the County Assessor → State Board of Equalization → Tax Court.

What is the average property tax rate in Arizona?+

Arizona's effective property tax rate is about 0.48% of value — roughly $1,879 per year on the state's median home value of $394,500. Assessments are made at 10% of market value (residential).

What exemptions can lower my property tax in Arizona?+

Common relief includes the homestead exemption (No traditional homestead; Owner-Occupied Classification reduces ratio to 10%) and senior relief (Senior Property Valuation Protection (freeze) for 65+ with income limits). Eligibility and amounts vary — check with Arizona Department of Revenue.

Does Arizona cap how much property taxes can increase?+

Yes. Under Value Protection: Limited Property Value (LPV) cannot increase more than 5% per year for owner-occupied homes

Is it worth appealing my property taxes in Arizona?+

If your assessed value is higher than what your home would realistically sell for, an appeal can lower your bill — often for the life of the assessment. Use the free over-assessment calculator to estimate your potential savings before you file.