The tax and cost-of-living gap between California and Arizona is becoming increasingly stark, motivating hundreds of thousands of residents to leave the “Golden State” for its eastern neighbor.

Income Tax: A Difference of Thousands of Dollars Per Year

A single person earning $80,000 per year in California, after the standard deduction, has approximately $74,000 in taxable income. Under the state’s progressive tax brackets, state income tax comes to roughly over $3,000 per year.

Meanwhile, Arizona applies a flat tax rate of 2.5%. After a larger standard deduction, taxable income is approximately $64,000, resulting in about $1,600 in taxes.

Income tax alone creates a gap of approximately $1,700 to $1,800 per year.

Additionally, California automatically deducts 1.3% of income for State Disability Insurance, with no wage cap. At $80,000, this amounts to approximately $1,040 per year — a cost that workers in Arizona largely do not bear.

Sales Tax and Fuel

California applies a base sales tax of 7.25%, the highest in the nation. After adding local surcharges, many areas exceed 10%, particularly in Los Angeles County.

Arizona applies a base rate of 5.6%, though local governments may add additional taxes.

Gas prices also create a significant difference. Gas taxes and fees in California are approximately 70 cents per gallon, compared to about 18 cents in Arizona. A driver covering 15,000 miles per year could spend about $300 more in gas taxes in California.

Electricity, Living Expenses, and Other Taxes

Residential electricity rates in California range from 28 to 32 cents per kWh, nearly double Arizona’s 13 to 15 cents. A household using 800 kWh per month could spend an additional $1,300 to $1,500 per year.

Cigarette tax in California is $2.87 per pack compared to $2 in Arizona. Alcohol taxes and vehicle-related fees are also higher.

Combined, a person earning $80,000 could spend several thousand dollars more per year living in California.

Migration Trend Reflects Cost Pressure

According to a StorageCafe study, more than 630,000 California residents moved to Arizona between 2014 and 2024.

Home prices in California average roughly double those in Arizona. Many people sell homes in Los Angeles, San Diego, or Orange County for over $1 million, then purchase homes in Phoenix or Queen Creek for half the price and still have cash left over.

A Phoenix real estate agent noted that many clients from California are surprised to find that a $600,000 home in Arizona offers the size and lot space that would cost $2 million in California.

Beyond housing costs, new residents also cite significantly lower gas prices and less traffic congestion in the Phoenix area.

The gap in taxes and cost of living continues to be a key factor driving the wave of population migration from California to Arizona.