Most California aircraft owners can tell you what their annual insurance costs, what their engine reserves run, and what they pay per hour wet. Far fewer can tell you what their county assessor bills them every year just for owning the airplane.
It is usually the largest line item nobody has actually calculated. And it is the one that disappears almost entirely when the aircraft moves to Arizona.
What California Charges You, Every Year, Forever
California treats your aircraft as unsecured personal property. Your county assessor values it at full market value as of the January 1 lien date, then taxes it. The base rate is one percent, and once you add voter-approved local assessments, most California counties tell owners to plan on roughly 1.1 to 1.2 percent of market value annually.
That is not a one-time transfer tax. It is a recurring annual bill for as long as the airplane is habitually situated in California.
A few details that catch people:
- If your aircraft is worth $100,000 or more, you are required to file an Aircraft Property Statement with the assessor every year by April 1
- Bills go out on the unsecured roll in mid-July and are due by August 31
- Flying the airplane out of the county on January 1 does not help. The standard is where the aircraft is regularly or habitually situated, not where it happened to be parked that morning
- Assessors do not wait for you to volunteer. They pull FAA registration data, airport and fixed base operator reports, and conduct on-site ramp inspections
What Arizona Charges
Arizona does not assess property tax on aircraft. It cannot. The Arizona Constitution, Article 9, Section 15, imposes a license tax on registered aircraft that is expressly in lieu of all ad valorem property taxes on that aircraft.
The license tax is one-half of one percent of assessed value, with a $20 minimum. That is it.
The valuation method is worth noting on its own. ADOT's Aircraft Registration Unit sets value using industry guides and dealer price books, based on the average fair market value for the make, model, and year. By statute, no consideration is given to condition, equipment, or purchase price. If you have put serious money into avionics, paint, interior, or engine programs, none of that follows you onto the Arizona tax bill the way it does onto a California market-value assessment.
Run the Number on Your Airplane
Using 1.2 percent for California and 0.5 percent for Arizona:
Aircraft value | California, per year | Arizona, per year | Annual difference |
$1,500,000 | $18,000 | $7,500 | $10,500 |
$3,000,000 | $36,000 | $15,000 | $21,000 |
$5,000,000 | $60,000 | $25,000 | $35,000 |
$8,000,000 | $96,000 | $40,000 | $56,000 |
$15,000,000 | $180,000 | $75,000 | $105,000 |
$20,000,000 | $240,000 | $100,000 | $140,000 |
On an $8 million aircraft, that is $56,000 a year. Over a decade of ownership you are looking at more than half a million dollars in tax you simply stop paying. That is a hangar, a paint and interior refurbishment, and a good chunk of an engine overhaul.
The Hangar Is the Tax Event
Here is the part that turns this from an accounting question into a real estate one.
Both states tax the airplane based on where it physically lives. California assesses at the airport where the aircraft spends the most ground time in the state. California use tax on a purchase is calculated at the rate for the location where the aircraft is principally hangared. Arizona's license tax follows registration and basing, with nonresident owners charged on a day-count schedule: no tax at 1 to 90 days in the state, one-tenth of one percent at 91 to 209 days, and the full one-half of one percent at 210 days or more.
Every one of those tests points at the same thing. The hangar.
Which means the decision is not "should I re-register the airplane." Re-registering an aircraft that still lives at Van Nuys or John Wayne does not move the tax. The decision is where the airplane is actually based, and that is a question about where you buy, what airport you buy near, and whether you can secure hangar or taxiway access when you get here.
Why Owners Land on Scottsdale
Scottsdale Airport and the surrounding Airpark are the reason this area attracts aircraft owners rather than just retirees. You get a full-service reliever airport with jet-capable infrastructure, multiple FBOs, maintenance and avionics shops on the field, and a business district built around it. For owners flying to California regularly, it is a short leg.
Then there is everything downstream of the airplane. Arizona's income tax is a flat 2.5 percent for 2026. California's top marginal rate is 13.3 percent. Arizona has no state estate tax. For an owner whose aircraft tax bill is already six figures, the aircraft is usually not even the biggest number on the page once they run the full comparison.
And for a subset of owners, the housing answer is a taxiway-access home, where the hangar is attached to the house and the airplane is a hundred feet from the kitchen. I have written separately about what to know before buying or selling one of those near the Airpark, because that market has its own rules.
What You Should Actually Do Next
If your airplane is based in California and you have been thinking about Arizona for any other reason, run the aircraft number first. It is frequently the single line item that turns a maybe into a yes, because it is recurring, it is large, and unlike income tax it does not depend on having a good year.
Two things to get right before you move anything:
- Base the airplane where you say it is based. California apportions assessments based on actual time and situs, and assessors verify with FAA and FBO records. The savings are real when the airplane genuinely relocates. They are not real when only the paperwork does.
- Mind the purchase timing. If you are buying an aircraft out of state, California presumes an airplane brought into California within twelve months of purchase was bought for California use, and the burden is on you to prove otherwise. Sequence a purchase and a relocation carefully.
I am a real estate agent, not a tax advisor, and the figures above are published rates rather than a projection for your specific aircraft. Your actual number depends on your airplane, your ownership entity, and how you fly it. Run it with an aviation tax specialist. What I can tell you is where the hangars are, which properties have taxiway access, and what is realistically available right now.
Frequently Asked Questions
Does California really tax aircraft every year?
Yes. Aircraft are assessed annually as unsecured personal property at full market value as of the January 1 lien date. Most counties advise planning on roughly 1.1 to 1.2 percent of market value per year, including voter-approved local assessments.
How much is Arizona's aircraft tax?
One-half of one percent of assessed value, with a $20 minimum. Under Article 9, Section 15 of the Arizona Constitution, that license tax is in lieu of all ad valorem property taxes on the aircraft.
Can I just register my aircraft in Arizona and keep it in California?
No, and this is the most common mistake. California taxes aircraft based on where they are regularly or habitually situated, and assessors verify situs using FAA registration, airport and FBO reports, and physical inspections. If the airplane still lives in California, California will still assess it.
What if I only keep the aircraft in Arizona part of the year?
Arizona charges nonresident owners on a day-count basis: no license tax for 1 to 90 days in the state, one-tenth of one percent for 91 to 209 days, and the full one-half of one percent at 210 days or more. California, for its part, can apportion an assessment when an aircraft establishes situs in more than one place.
Does moving my aircraft mean I have to change my residency?
They are separate tests. Aircraft property tax follows where the airplane is situated. Personal income tax residency follows a different analysis entirely. Some owners relocate the aircraft first and the household later. Both decisions benefit from professional guidance.
What about sales or use tax when I buy?
Arizona applies use tax to aircraft purchased from out-of-state vendors and brought into the state, and ADOT reports new registrations to the Department of Revenue. California applies use tax based on where the aircraft is principally hangared and presumes California use if the airplane enters the state within twelve months of an out-of-state purchase. Timing matters on both sides.
