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Arizona · AZ

Business Banking for Sole Proprietors in Arizona

Free business checking with 1.75% APY, built-in accounting, and unlimited sub-accounts for sole proprietors in Arizona.

Starting a Sole Proprietorship Business in Arizona

State Tax Rate

2.5% (flat rate)

LLC Filing Fee

$50 (LLC)

Major Markets

Phoenix, Tucson, Mesa, Scottsdale

Key Requirements in Arizona

Simplest business structure — no formal state filing required in most states
DBA (Doing Business As) filing required if operating under a trade name
Self-employment tax applies (15.3% on net earnings)
May need a general business license from your Arizona city or county
Personally liable for all business debts and obligations

Best Banks for Sole Proprietors in Arizona

Compare Arizona's top business banking options for sole proprietors.

1

Holdings

$0/mo · 1.75% APY

Free business checking with built-in AI accounting, unlimited sub-accounts, and FDIC insurance up to $3M. Available nationwide including Arizona.

Key Features

  • Free business checking
  • Built-in AI bookkeeping
  • Unlimited sub-accounts
  • 1.75% APY on all balances

Pros

  • No fees, no minimums
  • Accounting included free
  • FDIC insured up to $3M

Cons

  • No physical branches
  • No cash deposit
2

Alliance Bank of Arizona

Regional bank

Best for: sole proprietors wanting a dedicated commercial banking partner

Pros

Arizona-focused commercial bank, strong business relationships

Cons

Limited consumer product suite

3

National Bank of Arizona

Regional bank

Best for: sole proprietors needing branch access across Arizona

Pros

Statewide presence, full-service business banking

Cons

Monthly fees on basic business accounts

4

Arizona Federal Credit Union

Credit union

Best for: sole proprietors looking to minimize banking costs

Pros

Low fees, competitive loan rates, Phoenix metro coverage

Cons

Membership requirements, fewer business services

Why Sole Proprietors in Arizona Choose Holdings

Free Business Checking

No monthly fees, no minimums, no hidden costs. Every dollar stays in your business.

Built-In AI Bookkeeping

Automatic transaction categorization, real-time P&L and balance sheet. No QuickBooks needed.

1.75% APY on Every Dollar

Your operating funds earn interest while they sit. No tiered rates, no caps.

Unlimited Sub-Accounts

Organize funds by job, project, or purpose. Track payroll, taxes, and expenses separately.

Sole Proprietors Banking in Arizona — FAQ

Do sole proprietors in Arizona need to register their business?

If you operate under your legal name, no formal state registration is required in Arizona. If you use a business name, you'll need a DBA (Doing Business As) filing with your county. Some cities require a general business license regardless of structure.

Should sole proprietors in Arizona upgrade to an LLC?

If your business earns consistent income or faces any liability risk, upgrading to an LLC ($50 in Arizona) is smart. As a sole proprietor, you're personally liable for everything — lawsuits, debts, and claims. An LLC creates a legal shield between you and your business.

Do sole proprietors in Arizona need a separate bank account?

Legally, no — but practically, absolutely. Mixing personal and business finances makes taxes a nightmare, hurts your audit defense, and looks unprofessional to clients. Most banks let sole proprietors open a business account with just a DBA filing or your SSN.

How do sole proprietors in Arizona pay taxes?

Sole proprietors report business income on Schedule C of their personal tax return. You'll pay self-employment tax (15.3%) plus Arizona state income tax (2.5% (flat rate)) plus federal income tax. Quarterly estimated payments are required. A dedicated business account makes tracking income and deductions simple.

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Ready to open your account?

Holdings offers free banking with 1.75% APY for sole proprietors in Arizona. Open your account in minutes.

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