Champaign CPA Firm for S-Corps & Small Businesses

Looking for a CPA in Champaign? SDO CPA provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Champaign 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 Champaign 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 Champaign’s Education, Technology, Agriculture economy. Whether you’re managing University-linked startups needing investor-ready financials and proper IP accounting for technology commercialization or capitalizing on UIUC Research Park feeding a pipeline of venture-backed tech startups with sophisticated accounting needs, SDO CPA provides the virtual accounting support your business needs.

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

Key Takeaways: Champaign CPA Services

  • Virtual CPA services — Full tax, bookkeeping, and advisory support without geographic limitations
  • Illinois tax expertise — Illinois has a flat 4.95% income tax plus Chicago city-level taxes planning and multi-state compliance
  • Industry focus — Specialized experience with Education, Technology, Agriculture
  • 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 Champaign, IL

Champaign-Urbana is home to the University of Illinois at Urbana-Champaign, one of America’s top research universities, which drives a technology and startup ecosystem that supports over 4,000 businesses across the metro area. The Research Park at the University of Illinois houses more than 120 companies including Caterpillar’s data analytics division, Yahoo Japan, and dozens of university spinoffs commercializing research in engineering, agriculture technology, and computational sciences. Along Neil Street and the growing Midtown district, independent restaurants, retail operators, and professional service firms serve the university community and surrounding agricultural region. Champaign’s agricultural sector extends into the surrounding Champaign County farmland, where grain operations, ag-tech companies, and farm management firms handle complex commodity accounting and partnership structures. SDO CPA serves Champaign business owners across tech startups, professional services, and agriculture with entity structuring for venture funding, R&D tax credit documentation, and partnership accounting for farm operations. We analyze your financials monthly and provide fractional CFO services to help university-linked startups prepare investor-ready financial statements while managing Illinois state tax obligations efficiently.

Illinois Tax Planning Tip

Illinois has a flat 4.95% income tax that applies to all pass-through entity income. S-Corp owners should evaluate Illinois’s pass-through entity tax (PTE) election to work around the federal SALT deduction cap — this can save $5,000-$20,000 for owners with $200K+ in Illinois-source income. Chicago businesses also face the city’s 0.4% personal property lease transaction tax on equipment rentals.

Champaign is home to 4,000+ small businesses and a population of 88,822. From Education, Technology, Agriculture to professional services, Champaign business owners need CPAs who understand University-linked startups needing investor-ready financials and proper IP accounting for technology commercialization and can provide year-round tax planning — not just compliance.

CPA Services for Champaign Businesses

Common Challenges for Champaign Business Owners

Challenge

Champaign businesses often face University-linked startups needing investor-ready financials and proper IP accounting for technology commercialization, 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 Champaign’s business environment, helping you handle University-linked startups needing investor-ready financials and proper IP accounting for technology commercialization with confidence.

Challenge

Many Champaign 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 Champaign 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.

“Our UIUC Research Park startup needed investor-ready financials fast. SDO CPA organized our books, set up proper revenue recognition, and documented $29,000 in R&D tax credits from our first year of software development.”
— Karen L., Ag-tech startup founder in Champaign

How to Get Started With SDO CPA

1

Schedule Your Free Consultation

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

Illinois Tax Expertise

We understand Illinois has a flat 4.95% income tax plus Chicago city-level taxes and help Champaign 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 Champaign 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 Champaign?
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 Champaign business?
Yes. CPAs can prepare tax returns and provide accounting services for clients in any state. SDO CPA serves Champaign 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 Education businesses?
Yes. Champaign’s Education 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 Champaign businesses?
Yes. Our fractional CFO services provide cash flow forecasting, budgeting, financial modeling, and strategic planning for Champaign businesses generating $500K+ in revenue that need financial leadership without a full-time hire.
Should my Champaign 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 Champaign business during your free consultation. Learn about our bookkeeping services.

Resources for Champaign Business Owners

Also Serving East Central Illinois

SDO CPA provides virtual CPA services to businesses throughout East Central Illinois and Illinois.

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