WA → AZ · Tax Differences
Washington vs. Arizona: The Tax Differences
One of the most-asked questions in a Washington-to-Arizona move: does it really save money on taxes? The honest answer is nuanced. Here’s a clear, educational look at how the two states compare — and the planning that matters most.
First, an Important Note
This is education, not tax advice.
Kelly F. Jones is a real estate professional, not a CPA or tax attorney. Everything below is general information to help you ask better questions. Before making any decision tied to residency or the sale of assets, consult a qualified tax professional familiar with both Washington and Arizona law.
Side by Side
How the two states compare.
A practical snapshot of the costs Washington buyers ask about most.
Tax
Washington
Arizona
State Income Tax
None
2.5% flat rate
Capital Gains Tax
7% on gains over $250K
None beyond income tax
Avg. Property Tax Rate
1.0–1.2%
0.55–0.65%
Tax on Social Security
N/A (no income tax)
None
Estate / Inheritance Tax
Estate tax applies
None
Sales Tax (avg)
~10.2%
~8.4%
What Actually Drives the Decision
The three differences that matter most.
Capital Gains
Washington’s 7% tax on gains above $250,000 from stocks, bonds, and other assets has reshaped planning for high-net-worth households. Arizona has no separate capital gains tax — gains are taxed at the 2.5% income rate.
Income Tax
Washington has no state income tax — a genuine advantage. Arizona’s flat 2.5% is real, but it remains one of the most competitive rates in the country and far below high-tax coastal states.
Property Tax
King County rates over 1% can mean $10,000+ a year on a $1M home. Arizona’s ~0.55–0.65% often saves $4,000–$5,000 annually — a recurring benefit that compounds over time.
The Nuance Worth Naming
"No income tax" isn't the whole story.
It’s tempting to compare Washington’s zero income tax against Arizona’s 2.5% and stop there. But the full picture includes property taxes, sales taxes, and — for many — capital gains. When those are layered in, a large share of Washington transplants find Arizona’s total tax burden comes out lower than they assumed, especially alongside lower housing prices.
For retirees, the absence of any Arizona tax on Social Security income and the lack of estate or inheritance tax can be especially meaningful.
If You’re Selling Assets
Residency & timing considerations.
For high-net-worth buyers, when you establish Arizona residency relative to liquidating capital assets can matter. Establishing true domicile in Arizona generally means:
- Obtaining an Arizona driver's license
- Registering your vehicles in Arizona
- Registering to vote in Arizona
- Spending the majority of the calendar year in the state
- Demonstrating intent to make Arizona your permanent home
Washington has become increasingly aggressive about auditing former residents who claim non-residency while keeping strong ties to the state. This is precisely the kind of decision to coordinate with a CPA or tax attorney before you act.
Keep Exploring
Related guides.
Common Questions
Tax differences — answered.
Does moving from Washington to Arizona save on taxes?
It depends on your situation. Washington has no income tax, which Arizona does (a flat 2.5%). But Arizona’s lower property taxes, lower sales tax, and lack of a separate capital gains tax mean many transplants find their total tax burden comes out lower — especially alongside lower housing costs. Confirm with a CPA.
What is Washington's capital gains tax?
Washington imposes a 7% tax on gains above $250,000 from the sale of stocks, bonds, and certain other assets. Gains from a primary residence are generally exempt under certain conditions, but investment portfolio sales can be subject to it.
Does Arizona tax Social Security income?
No. Arizona does not tax Social Security income, and there is no state estate or inheritance tax — both meaningful for retirees relocating from Washington.
Do I need to establish Arizona residency to change my tax situation?
Tax residency requires establishing true domicile in Arizona — an AZ driver’s license, vehicle and voter registration, spending the majority of the year in-state, and intent to make Arizona your permanent home. This is a question for a qualified CPA or tax attorney, not a real estate agent.
Is this page tax advice?
No. This page is educational information only. Kelly F. Jones is a real estate professional, not a tax advisor. Always consult a qualified CPA or tax attorney familiar with both Washington and Arizona before making decisions tied to a residency change or asset sale.
The Right Team Matters
Plan the move with the right people.
Kelly works alongside your CPA and financial advisor to coordinate the real estate side of a tax-conscious move. Start with a conversation about your goals and timeline.
