Own homes in Arizona and Washington? Your property tax year

11 state-wide dates across both states, month by month. Counties that set their own dates are on each state's page, and your county's page has the full list.

March

Date and source	Deadline	Applies to
March 1 every yearazleg.govOct 21	Exemption filing Widow, widower or disability exemption	All 15 Arizona counties
March 1 every yearazleg.govOct 21	Bills due Second half due	All 15 Arizona counties

April

Date and source	Deadline	Applies to
April 30 every yearapp.leg.wa.govOct 21	Last day without penalty First half due (or all of it, if under $50)	All 39 Washington counties

May

Date and source	Deadline	Applies to
May 1 every yearazleg.govOct 21	Last day without penalty Pay the second half by 5 p.m.	All 15 Arizona counties

July

Date and source	Deadline	Applies to
July 1 every yearapp.leg.wa.govOct 21	Appeal deadline Appeal your value to the county board	All 36 Washington counties except King, Snohomish, Clark

October

Date and source	Deadline	Applies to
October 1 every yearazleg.govOct 21	Bills due First half due	All 15 Arizona counties
October 31 every yearapp.leg.wa.govOct 21	Last day without penalty Second half due	All 39 Washington counties

November

Date and source	Deadline	Applies to
November 1 every yearazleg.govOct 21	Last day without penalty Pay the first half by 5 p.m.	All 15 Arizona counties

December

Date and source	Deadline	Applies to
December 31 every yearazleg.govOct 21	Last day without penalty Bills of $100 or less: pay by 5 p.m.	All 15 Arizona counties
December 31 every yearazleg.govOct 21	Other Pay the full year by now: no first-half interest	All 15 Arizona counties
December 31 every yearapp.leg.wa.govOct 21	Exemption filing Renew your senior or disabled exemption	All 39 Washington counties

A second home in Arizona

Arizona taxes a home the owner lives in as their primary residence as class three property. A home a qualifying relative lives in as their primary residence can be class three too. azleg.govOct 21
To decide if a home is your primary residence, officials look at how long you live there each year, your voting precinct, your driver license address and where your vehicles are registered. azleg.govOct 21
If the assessor thinks a class three home isn't your primary residence, you'll get a notice asking if it's a secondary residence or a rental. Don't answer within 15 days of the final notice and it's moved to class four, with a civil penalty equal to the prior year's state aid. azleg.govOct 21
If you own residential rental property, you must keep your details on file with the county assessor and update them within ten days of a change. Owners who live outside Arizona must name a statutory agent who lives in the state. azleg.govOct 21

All Arizona dates · All Washington dates · Put your own counties in one calendar