CPA Services in Phoenix for S-Corps & Small Businesses

Looking for a CPA in Phoenix? SDO CPA provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Phoenix businesses specializing in S-Corps and partnerships. We provide upfront estimates — if scope changes, we discuss it first. Schedule a free consultation.
Serena Do, CPA — Managing Partner of SDO CPA

Serena Do, CPA

Managing Partner | Duncanville, TX (Serving Phoenix Virtually)

18+ Years Experience | AICPA Member

Licensed CPA — Texas State Board of Public Accountancy

With 18+ years of experience helping business owners across the country, I bring specialized expertise to Phoenix’s Technology, Healthcare, Financial Services economy. Whether you’re managing High commercial real estate costs in growth corridors like Downtown Phoenix and the Camelback Corridor driving complex lease vs. buy decisions or capitalizing on Rapid tech sector growth creating opportunities for R&D tax credits and qualified small business stock (QSBS) planning, SDO CPA provides the virtual accounting support your business needs.

We offer cloud-based tax preparation, bookkeeping, payroll, and fractional CFO services designed for Phoenix business owners who want proactive guidance — not just annual tax filing.

Key Takeaways: Phoenix CPA Services

  • Virtual CPA services — Full tax, bookkeeping, and advisory support without geographic limitations
  • Arizona tax expertise — Arizona has a flat 2.5% income tax rate with 5.6% transaction privilege tax (TPT) planning and multi-state compliance
  • Industry focus — Specialized experience with Technology, Healthcare, Financial Services
  • Transparent pricing — Upfront estimates starting at $300/month; if scope changes, we discuss it first
  • Responsive support — Direct CPA access, same-day responses

Accounting & Tax Services in Phoenix, AZ

Phoenix stands as the fifth-largest city in the United States and the economic engine of the Southwest, with over 52,000 active businesses driving $255 billion in annual economic output. The city’s Downtown Phoenix core and Camelback Corridor have become major tech hubs, attracting satellite offices from Intel, Amazon, and emerging fintech startups. Healthcare systems like Banner Health and HonorHealth employ tens of thousands across the metro area, while financial services firms leverage Arizona’s favorable regulatory climate. Phoenix’s rapid growth creates complex tax planning opportunities: R&D tax credits for tech companies, cost segregation studies for commercial real estate investors acquiring properties in growth districts like Midtown and Roosevelt Row, and entity structure optimization for professional service firms navigating TPT obligations. SDO CPA serves Phoenix business owners with specialized expertise in Arizona’s Transaction Privilege Tax system, S-Corp reasonable compensation benchmarking for the local market, and multi-state tax planning for companies expanding beyond Arizona’s borders. Whether you operate in the Warehouse District, Arcadia, or North Phoenix, we provide proactive tax strategies tailored to Phoenix’s dynamic economy.

Arizona Tax Planning Tip

Arizona’s flat 2.5% individual income tax rate (effective 2023) is one of the lowest in the nation. For S-Corp and partnership owners, this means pass-through income faces minimal state tax. However, Arizona’s Transaction Privilege Tax (TPT) — the state’s version of sales tax — applies to many services that other states exempt, so verify your business activities aren’t triggering unexpected TPT obligations.

Phoenix is home to 52,000+ small businesses and a population of 1,680,992. From Technology, Healthcare, Financial Services to professional services, Phoenix business owners need CPAs who understand High commercial real estate costs in growth corridors like Downtown Phoenix and the Camelback Corridor driving complex lease vs. buy decisions and can provide year-round tax planning — not just compliance.

CPA Services for Phoenix Businesses

Common Challenges for Phoenix Business Owners

Challenge

Phoenix businesses often face High commercial real estate costs in growth corridors like Downtown Phoenix and the Camelback Corridor driving complex lease vs. buy decisions, making tax planning and cash flow management more complex than standard approaches allow.

Our Approach

We provide proactive tax planning and fractional CFO services tailored to Phoenix’s business environment, helping you handle High commercial real estate costs in growth corridors like Downtown Phoenix and the Camelback Corridor driving complex lease vs. buy decisions with confidence.

Challenge

Many Phoenix business owners struggle to get timely responses from their CPA, especially during busy seasons when questions are most urgent.

Our Approach

SDO CPA provides direct access to your CPA team with same-day response times. No call centers, no waiting weeks for answers.

Challenge

Tax preparation alone doesn’t help Phoenix business owners understand their financial position or make informed decisions throughout the year.

Our Approach

We deliver monthly financial reports with actionable insights, helping you understand cash flow, profitability, and tax liability before year-end.

“SDO CPA helped us claim $87,000 in R&D tax credits we didn’t know existed and restructured our partnership to take advantage of Arizona’s flat tax rate. Their Phoenix market knowledge is unmatched.”
— Marcus T., SaaS startup founder in Phoenix

How to Get Started With SDO CPA

1

Schedule Your Free Consultation

Book a call to discuss your Phoenix business, current financial setup, and goals.

2

Get Your Custom Proposal

Receive a clear proposal with upfront estimates — if scope changes, we discuss it first.

3

Seamless Onboarding

We connect to your QuickBooks or Xero and organize your books within 30 days.

4

Ongoing Partnership

Monthly reports, proactive tax planning, and year-round CPA access.

Why Phoenix Business Owners Choose SDO CPA

Arizona Tax Expertise

We understand Arizona has a flat 2.5% income tax rate with 5.6% transaction privilege tax (TPT) and help Phoenix businesses maximize tax advantages while managing federal obligations and multi-state complexity.

Transparent Pricing

Clear monthly estimates for standard services. We scope your needs upfront and communicate before any additional work. See our pricing.

Cloud-Based & Virtual

Access your financials anywhere. We work with QuickBooks Online, Xero, Gusto, and Ramp to keep your Phoenix business running smoothly.

S-Corp & Partnership Specialists

Our clients are pass-through entity owners. We handle reasonable compensation analysis, K-1 preparation, QBI optimization, and entity selection.

Responsive Communication

Get answers when you need them. Our team responds within one business day, and you’ll have direct access to your CPA.

Frequently Asked Questions

How much does a CPA cost for a small business in Phoenix?
At SDO CPA, bookkeeping starts at $300-$500 per month for a single entity. Full-service packages including bookkeeping, tax planning, and advisory range from $1,000-$2,000 per month with upfront estimates — if scope changes, we discuss it first. View our pricing.
Can a virtual CPA serve my Phoenix business?
Yes. CPAs can prepare tax returns and provide accounting services for clients in any state. SDO CPA serves Phoenix businesses through secure cloud-based tools including QuickBooks Online, Gusto, and encrypted document sharing with the same quality as a local firm.
Do you specialize in Technology businesses?
Yes. Phoenix’s Technology sector has unique accounting needs including industry-specific deductions, revenue recognition, and compliance requirements that we address with tailored solutions.
What is the difference between a bookkeeper and a CPA?
A bookkeeper records transactions and maintains financial records. A CPA is a state-licensed professional who can prepare and sign tax returns, provide tax planning advice, represent you before the IRS, and offer strategic financial guidance that bookkeepers cannot.
Do you offer fractional CFO services for Phoenix businesses?
Yes. Our fractional CFO services provide cash flow forecasting, budgeting, financial modeling, and strategic planning for Phoenix businesses generating $500K+ in revenue that need financial leadership without a full-time hire.
Should my Phoenix business be an S-Corp or LLC?
It depends on your net income. Generally, businesses earning over $60,000 in net profit may save on self-employment taxes by electing S-Corp status. Use our S-Corp tax calculator to estimate savings, then schedule a consultation for personalized analysis.
How quickly does SDO CPA respond to questions?
We respond to all client inquiries within one business day. For urgent tax matters, we prioritize same-day responses. You’ll have direct access to your CPA — no call centers or gatekeepers.
What accounting software do you work with?
We work with QuickBooks Online, Xero, Gusto for payroll, and Ramp for expense management. We’ll recommend the best setup for your Phoenix business during your free consultation. Learn about our bookkeeping services.

Resources for Phoenix Business Owners

Also Serving Phoenix Metropolitan Area

SDO CPA provides virtual CPA services to businesses throughout Phoenix Metropolitan Area and Arizona.

Ready to Work With a CPA Who Understands Phoenix Businesses?

Schedule your free consultation today. We’ll analyze your tax situation and provide an upfront estimate with no obligation.

Schedule a Call
Licensing & Service Disclaimer: SDO CPA LLC is a Texas-licensed CPA firm serving clients in Arizona under CPA practice mobility provisions. We do not maintain a physical office in Arizona — all services are delivered remotely via secure video, phone, and digital collaboration tools. SDO CPA does not hold a CPA license in Arizona. Services requiring CPA licensure are performed by Texas-licensed CPAs. We do not provide attest services (audits, reviews, or compilations). Per Texas State Board of Public Accountancy regulations (22 TAC §501.82).