When are property taxes due in Maricopa County? Arizona splits the bill in two. The first half is due October 1 and the second half is due March 1. What matters most is the delinquency date: for 2026, the Maricopa County Treasurer lists first-half taxes as delinquent after 5 p.m. on Monday, November 2, 2026, because November 1 lands on a Sunday.
Is there a way to skip the March payment? Yes. If you pay the full year by December 31, Arizona law waives interest on the first half even if you missed November. And if your bill hasn't arrived, don't wait: the Treasurer's Office says 2026 bills were mailed late this year, and you can look yours up and pay online now.
Data note: Due dates and interest rules come from Arizona Revised Statutes 42-18052 and 42-18053 and the Maricopa County Treasurer's property tax calendar (checked Oct. 22, 2026). The mailing delay was reported by AZFamily on Sept. 30, 2026.
The 2026 Maricopa County Property Tax Calendar
- Oct. 1, 2026: first half of 2026 taxes due
- Nov. 2, 2026, 5 p.m.: first half becomes delinquent and interest starts
- Dec. 31, 2026: last day to pay the full year without interest (bills over $100)
- Mar. 1, 2027: second half due
- May 1, 2027: second-half delinquency date. It's a Saturday, so the statute's weekend rule moves it to 5 p.m. on the next business day
What the Law Actually Says
- Two halves: one-half due October 1, the rest due the following March 1 (A.R.S. 42-18052)
- Delinquency: after 5 p.m. November 1 and 5 p.m. May 1
- Weekends and holidays: the deadline moves to 5 p.m. the next business day
- Small bills: $100 or less is due in full October 1 and delinquent after December 31
- The lien: a property tax lien attaches on January 1 of the tax year (A.R.S. 42-17153)
Why Some 2026 Bills Showed Up Late
If your bill arrived after October 1, you're not imagining it. AZFamily reported on September 30 that the Treasurer's Office attributed the delay to late changes in the property tax levy and rates and technical problems during the rollout of a new computer system. The office said taxpayers won't be penalized if they pay the first half by 5 p.m. Monday, November 2.
You don't need the paper bill to pay. Search by parcel number or address on the Maricopa County Treasurer's website and pay online.
What Happens If You Pay Late
- Interest: 16% per year, simple, from the moment of delinquency (A.R.S. 42-18053)
- Partial months: count as whole months
- The December 31 exception: no interest if the full year is paid on or before December 31 of the tax year
- Long-term delinquency: unpaid taxes can be offered at the county's tax lien sale, where the winning bidder pays the delinquent amount and the owner later redeems the lien with interest
How Your Bill Is Calculated, in Brief
Your tax is driven by your Limited Property Value (LPV), not your home's market value. Under A.R.S. 42-13301, LPV is last year's LPV plus 5%, and it can never exceed the assessor's full cash value. That's why a big jump in home prices doesn't translate one-for-one into your tax bill. Rates set by your city, school district and other taxing districts do the rest.
Do You Pay It, or Does Your Lender?
- Escrowed loan: if your monthly mortgage payment includes taxes, your servicer pays the Treasurer. Check your annual escrow statement
- No escrow or paid off: the bill is yours to pay. Mark November 2 and March 1
- Buying or selling: taxes are prorated at closing. See what it costs to sell a house in Arizona
“Every fall I get the same call from a past client: 'My tax bill never came, am I in trouble?' This year more people are asking, because the bills really were late. My advice is simple: look up your parcel online this week, and if you can, pay the full year before December 31. It's one less thing to think about when you're planning a sale or a refinance in the spring.”
— Elizabeth Vijan, Tackett Team, eXp Realty
FAQ: Maricopa County Property Taxes
When are property taxes due in Arizona?
First half October 1 (delinquent after 5 p.m. November 1); second half March 1 (delinquent after 5 p.m. May 1).
When is the 2026 first-half deadline in Maricopa County?
5 p.m. Monday, November 2, 2026, because November 1 is a Sunday.
What is the penalty for paying Arizona property taxes late?
16% per year simple interest; partial months count as full months. Pay the full year by December 31 and no interest applies.
Does Arizona have a senior property tax freeze?
Maricopa County's Senior Valuation Protection freezes the LPV, not the tax, for three years. The deadline is September 1, and 2027 applications open after January 1, 2027.
Planning a Move in 2027? Let's Talk Numbers
Property taxes, prorations and escrow changes all show up on a closing statement. I'll walk you through what a purchase or sale in Scottsdale or Phoenix would look like for your home, line by line, before you commit.
Elizabeth Vijan | Tackett Team, eXp Realty
Scottsdale & Phoenix Real Estate
Request My Seller or Buyer Cost Breakdown · Call or text 602-885-7752
Sources: A.R.S. 42-18052, due dates and delinquency · A.R.S. 42-18053, interest on delinquent taxes · A.R.S. 42-13301, limited property value · A.R.S. 42-17153, tax lien attachment · Maricopa County Treasurer property tax calendar · AZFamily: Maricopa County property tax bills are delayed (Sept. 30, 2026) · Arizona Auditor General: County Treasurer FAQs · Maricopa County Assessor: Senior Valuation Protection
Disclaimer: General information, not tax or legal advice. Confirm your balance and deadlines with the Maricopa County Treasurer, and consult a tax professional about your situation. Information deemed reliable but not guaranteed. Equal Housing Opportunity.
Tackett Team, eXp Realty · Get in touch