Arizona Small Business Tax Guide — 2026
Income Tax Rate
2.5% flat rate
Sales Tax Rate
5.6% state + local (total typically 7% — 11%)
Filing Deadline
April 15 (matches federal deadline)
Arizona Income Tax
Arizona imposes a state income tax with rates of 2.5% flat rate. Self-employed individuals, freelancers, and sole proprietors pay this tax on their net business income in addition to federal income tax and federal self-employment tax (15.3%).
Self-Employment in Arizona
Arizona imposes a flat 2.5% income tax on net business income. Self-employed individuals also pay the standard federal SE tax. Arizona offers a small business income tax election for pass-through entities.
Estimated Tax Requirements
Quarterly estimated payments required if you expect to owe $1,000 or more. Due dates: April 15, June 15, September 15, January 15.
Arizona Deductions & Credits
- Arizona conforms to many federal deductions
- Subtraction for U.S. government pension income
- Credit for taxes paid to other states
- Small business income tax option for pass-through entities
Business Filing Fees
LLC: $50 formation + no annual report fee (just publication requirement). Corporation: $60 formation + $45 annual report.
Key Facts About Arizona Taxes
- Arizona moved to a flat 2.5% income tax in 2023 — one of the lowest in the nation
- Transaction Privilege Tax (TPT) is Arizona's version of sales tax, paid by the seller
- LLC publication requirement: must publish articles of organization in a local newspaper
- Arizona does not tax Social Security benefits
The Part Arizona Does Not Do For You
Whatever Arizona takes, it takes on your net profit — and net profit is just what you earned minus what you can prove you spent. The proving is on you, and it is where most of the money leaks out.
TaxTidy is where the proof lives. Photograph a receipt and it reads the vendor, the amount and the date in about three seconds, then files the expense on its Schedule C line. Nothing gets typed in twice, and nothing depends on you remembering a purchase from eight months ago.
Because Arizona wants its own return alongside the federal one, the same organized record does double duty — one set of receipts, sorted once, ready for whichever deadline comes first. Your Audit Readiness Score shows you how solid that record is before anyone else asks.
Frequently Asked Questions
What is Arizona's income tax rate for self-employed individuals?
Arizona has a flat 2.5% income tax rate on all taxable income, including self-employment income. This is one of the lowest rates in the country.
Does Arizona have a separate business tax for freelancers?
No separate business tax, but you may need to collect Arizona Transaction Privilege Tax (sales tax) if you sell taxable goods or certain services. The state rate is 5.6% plus local additions.
When are Arizona estimated tax payments due?
Quarterly on April 15, June 15, September 15, and January 15. Required if you expect to owe $1,000 or more in Arizona income tax.
Official source: Arizona Department of Revenue
TaxTidy provides expense organization tools based on the most current US tax law available to it. TaxTidy is not a CPA, Enrolled Agent, or licensed tax professional. All categorizations, deductions, and tax calculations are estimates. Please verify all data for accuracy and consult a certified tax professional before filing.
Start Tracking Your Arizona Business Expenses
Your first 25 scans are on us — free for life, no card required. Enough to sort this quarter's receipts by Schedule C line and see your Audit Readiness Score for the first time.
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