Arizona CPA Offers Virtual Tax, Bookkeeping & CFO Services

SDO CPA provides specialized financial guidance to Arizona businesses navigating the state's evolving economic landscape.

Feb. 9, 2026 at 3:07pm

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Arizona businesses are navigating a rapidly evolving economic landscape, attracting companies in technology, healthcare, and real estate. With over 180,000 active businesses across the state, owners are seeking specialized financial guidance. SDO CPA provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Arizona businesses, with a focus on S-Corps and partnerships.

Why it matters

Arizona's business environment is bolstered by a flat 2.5% income tax rate, creating advantages for pass-through income. Yet, the state's Transaction Privilege Tax (TPT) system—which applies to many services exempt in other states—requires careful attention. SDO CPA assists Arizona business owners with TPT compliance and optimizing entity structures to leverage the state's tax benefits.

The details

SDO CPA, led by Managing Partner Serena Do, a Texas-licensed CPA with 18+ years of experience, offers cloud-based services designed for proactive financial guidance. The firm provides upfront estimates and communicates any scope changes before implementation. SDO CPA addresses common challenges for Arizona business owners, including navigating the TPT and receiving timely CPA support. They deliver monthly financial reports to help owners understand their financial position throughout the year, not just during tax season.

  • Arizona has over 180,000 active businesses across the state.

The players

SDO CPA

A CPA firm that provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Arizona businesses, with a focus on S-Corps and partnerships.

Serena Do

The managing partner of SDO CPA, a Texas-licensed CPA with over 18 years of experience.

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The takeaway

As Arizona's business landscape continues to evolve, businesses will need to prioritize proactive financial planning to navigate the state's unique tax environment and capitalize on its economic advantages.