Cary CPA Firm for S-Corps & Small Businesses

Looking for a CPA in Cary? SDO CPA provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Cary 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 Cary 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 Cary’s Technology, Professional Services, Pharmaceuticals economy. Whether you’re managing Complex stock option and equity compensation accounting for tech employees transitioning to S-Corp entrepreneurship or capitalizing on Research Triangle’s SAS Institute headquarters and Epic Games presence draw high-income tech professionals launching consulting firms, SDO CPA provides the virtual accounting support your business needs.

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

Key Takeaways: Cary CPA Services

  • Virtual CPA services — Full tax, bookkeeping, and advisory support without geographic limitations
  • North Carolina tax expertise — North Carolina’s 2.5% corporate income tax (lowest in the nation, dropping to 0% by 2030) planning and multi-state compliance
  • Industry focus — Specialized experience with Technology, Professional Services, Pharmaceuticals
  • 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 Cary, NC

Cary sits at the heart of North Carolina’s Research Triangle, consistently ranked among the best places to live in the United States with a median household income exceeding $115,000. SAS Institute, one of the world’s largest private software companies, is headquartered here on a 900-acre campus, while Epic Games operates from its expanding campus off Cary Parkway. The Weston Parkway and Regency Parkway corridors host hundreds of technology firms, pharmaceutical companies, and professional service providers. Cary’s highly educated workforce fuels a steady pipeline of tech professionals launching consulting firms and SaaS startups. Many entrepreneurs transition from W-2 employment at SAS, Cisco, or MetLife and need guidance on S-Corp elections, reasonable compensation, and R&D tax credits for software development. SDO CPA works with Cary business owners in technology, professional services, and pharmaceuticals to optimize entity structures under North Carolina’s declining corporate tax rate, manage equity compensation complexities, and implement tax planning for high-income pass-through entities. For tech consultants serving Research Triangle clients or pharmaceutical companies managing clinical trial costs, we provide monthly bookkeeping and fractional CFO services calibrated to Cary’s knowledge economy.

North Carolina Tax Planning Tip

North Carolina’s corporate income tax is 2.5% in 2026 and is scheduled to reach 0% by 2030. Charlotte business owners should plan entity structures now to take advantage of the declining rate. S-Corp owners with multi-state clients should also analyze nexus exposure, as North Carolina’s economic nexus thresholds apply to out-of-state sellers with $100,000+ in sales or 200+ transactions in the state.

Cary is home to 7,200+ small businesses and a population of 180,010. From Technology, Professional Services, Pharmaceuticals to professional services, Cary business owners need CPAs who understand Complex stock option and equity compensation accounting for tech employees transitioning to S-Corp entrepreneurship and can provide year-round tax planning — not just compliance.

CPA Services for Cary Businesses

Common Challenges for Cary Business Owners

Challenge

Cary businesses often face Complex stock option and equity compensation accounting for tech employees transitioning to S-Corp entrepreneurship, 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 Cary’s business environment, helping you handle Complex stock option and equity compensation accounting for tech employees transitioning to S-Corp entrepreneurship with confidence.

Challenge

Many Cary 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 Cary 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.

“I left SAS to start my own data analytics firm and SDO CPA handled my S-Corp election, set reasonable compensation, and found $63,000 in first-year tax savings. Their experience with Research Triangle tech businesses made the transition seamless.”
— Kevin L., Data analytics firm owner in Cary

How to Get Started With SDO CPA

1

Schedule Your Free Consultation

Book a call to discuss your Cary 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 Cary Business Owners Choose SDO CPA

North Carolina Tax Expertise

We understand North Carolina’s 2.5% corporate income tax (lowest in the nation, dropping to 0% by 2030) and help Cary 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 Cary 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 Cary?
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 Cary business?
Yes. CPAs can prepare tax returns and provide accounting services for clients in any state. SDO CPA serves Cary 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. Cary’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 Cary businesses?
Yes. Our fractional CFO services provide cash flow forecasting, budgeting, financial modeling, and strategic planning for Cary businesses generating $500K+ in revenue that need financial leadership without a full-time hire.
Should my Cary 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 Cary business during your free consultation. Learn about our bookkeeping services.

Resources for Cary Business Owners

Also Serving Research Triangle/Wake County

SDO CPA provides virtual CPA services to businesses throughout Research Triangle/Wake County and North Carolina.

Ready to Work With a CPA Who Understands Cary 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 North Carolina under CPA practice mobility provisions. We do not maintain a physical office in North Carolina — all services are delivered remotely via secure video, phone, and digital collaboration tools. SDO CPA does not hold a CPA license in North Carolina. 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).