Arizona corporate income tax is 4.9%. The state conforms to federal bonus depreciation.
Key Planning Insight:
Arizona enacted a flat 2.5% income tax rate — one of the lowest in the nation for earned income. PTET election is available and highly advantageous given the SALT cap.
Arizona-Specific Tax Strategies
These strategies are especially powerful or unique in Arizona. Click any strategy to learn more.
Arizona's PTET election allows pass-through entities to pay the 2.5% flat state income tax at the entity level. Owners receive a credit on their individual return, and the entity gets a full federal deduction — effectively bypassing the $10,000 SALT cap.
The Backdoor Roth IRA strategy allows high-income earners who exceed Roth IRA income limits to contribute to a traditional IRA (non-deductible) and then convert to a Roth IRA. This provides tax-free growth and tax-free withdrawals in retirement — a powerful long-term wealth-building strategy.
Bonus depreciation allows you to deduct a large percentage of qualifying business assets (equipment, vehicles, real estate improvements) in the year of purchase rather than depreciating over time. This is one of the most powerful accelerated deductions available to business owners and real estate investors.
Section 179 allows businesses to deduct the full purchase price of qualifying equipment, vehicles, and software in the year of purchase rather than depreciating over time. The 2026 federal limit is over $1 million. Some states cap or limit Section 179 conformity — check your state rules.
The Qualified Business Income (QBI) deduction allows eligible self-employed individuals and pass-through business owners to deduct up to 20% of their qualified business income on their federal return. This effectively reduces your top tax rate from 37% to 29.6%. Income limits and specified service trade restrictions apply.
Choosing the right business structure is the single biggest tax decision you'll make. Here's what Arizona LLC and S-Corp owners need to know.
Arizona LLC Formation
Arizona LLCs are taxed as pass-through entities by default. All profits flow to your personal return and are taxed at 2.5% (flat). Electing S-Corp status can significantly reduce your self-employment tax burden.
LLC vs. S-Corp in Arizona
Arizona offers a Pass-Through Entity Tax (PTET) election — a major advantage for LLC and S-Corp owners. By paying state income tax at the entity level, you bypass the $10,000 federal SALT deduction cap and deduct the full state tax bill on your federal return.
Top LLC Write-Offs in Arizona
Arizona LLC owners can deduct: business expenses (IRC §162), home office (IRC §280A), vehicle mileage (IRC §179), Section 179 equipment expensing, bonus depreciation (100% federal conformity), retirement contributions (Solo 401k or SEP-IRA), health insurance premiums, and business meals.
Arizona Business Tax Note
Arizona corporate income tax is 4.9%. The state conforms to federal bonus depreciation.
These federal strategies apply to Arizona residents and business owners. Click any strategy to see full details, savings estimates, and eligibility requirements.
Common questions about Arizona LLC taxes, S-Corp elections, and business write-offs — answered by Uncle Kam's tax advisors.
Arizona's top marginal income tax rate is 2.5% (flat). Business owners and self-employed individuals pay this rate on their net business income. Strategies like the S-Corp election, pass-through entity tax (PTET) election, and maximizing deductions can significantly reduce your effective Arizona tax rate.
The most powerful write-offs for Arizona LLC owners include: the S-Corp election to reduce self-employment taxes, Section 179 and bonus depreciation for equipment and real estate, the home office deduction, vehicle and mileage deductions, Solo 401(k) or SEP-IRA contributions, and business meals and travel. Arizona-specific strategies like the PTET election and state-specific credits can add further savings.
Yes. Arizona offers a pass-through entity tax election that allows S-Corps and partnerships to pay state income tax at the entity level. This is a powerful SALT workaround that lets business owners deduct state taxes on their federal return, bypassing the $10,000 SALT cap. Uncle Kam's tax advisors can help you determine if the Arizona PTET election is right for your business.
Yes. Arizona conforms to federal bonus depreciation rules, meaning you can deduct a large percentage of qualifying business assets in the year of purchase. This is especially powerful for real estate investors using cost segregation studies and for businesses purchasing equipment or vehicles.
For most Arizona business owners earning over $60,000 in net profit, electing S-Corp status can save $5,000–$20,000 per year in self-employment taxes. The right choice depends on your income level, Arizona's franchise or minimum tax requirements, and your business structure. Uncle Kam's advisors specialize in Arizona entity structuring — book a free call to get a personalized recommendation.
Self-employed individuals in Arizona can reduce state taxes by: maximizing business deductions (home office, vehicle, equipment), contributing to a Solo 401(k) or SEP-IRA, electing S-Corp status to reduce self-employment tax, using the PTET election if available, and timing income and deductions strategically. A Arizona-based tax strategy session with Uncle Kam can identify your biggest opportunities.
Real estate investors in Arizona benefit most from cost segregation studies (accelerating depreciation on commercial and rental properties), the 1031 exchange (deferring capital gains on property sales), bonus depreciation (if Arizona conforms), the short-term rental loophole, and real estate professional status (REPS). Arizona's specific tax rules can significantly impact your real estate ROI — get a free strategy review from Uncle Kam.
