Greenwich CPA Firm for S-Corps & Small Businesses

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

Serena Do, CPA

Managing Partner | Duncanville, TX (Serving Greenwich 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 Greenwich’s Hedge Funds & Private Equity, Wealth Management, Professional Services economy. Whether you’re managing Ultra-high-net-worth business owners face complex carried interest, investment fund structuring, and multi-state residency audit exposure or capitalizing on Greenwich manages an estimated $500 billion in hedge fund and private equity assets, creating demand for sophisticated tax advisory services, SDO CPA provides the virtual accounting support your business needs.

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

Key Takeaways: Greenwich CPA Services

  • Virtual CPA services — Full tax, bookkeeping, and advisory support without geographic limitations
  • Connecticut tax expertise — CT has 6.99% top individual rate. Pass-through entity tax (PTET) available at 6.99% for SALT cap workaround. No local income taxes. planning and multi-state compliance
  • Industry focus — Specialized experience with Hedge Funds & Private Equity, Wealth Management, Professional 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 Greenwich, CT

Greenwich is the hedge fund capital of the world, with over 400 investment firms managing an estimated $500 billion in assets from offices along Greenwich Avenue, the Pickwick Plaza district, and the waterfront on Steamboat Road. The town’s proximity to Manhattan and absence of local income taxes has attracted Point72 Asset Management, AQR Capital Management, and Bridgewater Associates’ satellite operations. Beyond finance, Greenwich’s commercial district supports high-end professional services including law firms, family offices, and private wealth advisors serving residents with a median household income exceeding $170,000. The Greenwich Hospital campus, affiliated with Yale New Haven Health, employs 1,900 workers. Luxury retail along Greenwich Avenue and in the Cos Cob district generates substantial sales volume for independent boutiques and service providers. SDO CPA serves Greenwich business owners and fund managers with entity structuring for investment vehicles, carried interest tax planning, PTET elections for pass-through fund structures, and multi-state residency documentation for owners who split time between Connecticut and New York.

Connecticut Tax Planning Tip

Connecticut’s PTET allows S-Corps and partnerships to pay entity-level tax, generating a federal deduction to bypass the SALT cap. Combined with CT’s lack of local income taxes, proper entity structuring can significantly reduce overall tax burden for business owners.

Greenwich is home to 5,600+ small businesses and a population of 63,518. From Hedge Funds & Private Equity, Wealth Management, Professional Services to professional services, Greenwich business owners need CPAs who understand Ultra-high-net-worth business owners face complex carried interest, investment fund structuring, and multi-state residency audit exposure and can provide year-round tax planning — not just compliance.

CPA Services for Greenwich Businesses

Common Challenges for Greenwich Business Owners

Challenge

Greenwich businesses often face Ultra-high-net-worth business owners face complex carried interest, investment fund structuring, and multi-state residency audit exposure, 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 Greenwich’s business environment, helping you handle Ultra-high-net-worth business owners face complex carried interest, investment fund structuring, and multi-state residency audit exposure with confidence.

Challenge

Many Greenwich 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 Greenwich 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 restructured our Greenwich fund’s carried interest allocations and implemented the PTET election, saving our partners a combined $187,400 in federal and state taxes last year.”
— Michael B., Private equity fund manager in Greenwich

How to Get Started With SDO CPA

1

Get Started

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

Connecticut Tax Expertise

We understand CT has 6.99% top individual rate. Pass-through entity tax (PTET) available at 6.99% for SALT cap workaround. No local income taxes. and help Greenwich 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 Greenwich 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 Greenwich?
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 Greenwich business?
Yes. CPAs can prepare tax returns and provide accounting services for clients in any state. SDO CPA serves Greenwich 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 Hedge Funds & Private Equity businesses?
Yes. Greenwich’s Hedge Funds & Private Equity 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 Greenwich businesses?
Yes. Our fractional CFO services provide cash flow forecasting, budgeting, financial modeling, and strategic planning for Greenwich businesses generating $500K+ in revenue that need financial leadership without a full-time hire.
Should my Greenwich 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 get started 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 Greenwich business during your free consultation. Learn about our bookkeeping services.

Resources for Greenwich Business Owners

Also Serving Fairfield County

SDO CPA provides virtual CPA services to businesses throughout Fairfield County and Connecticut.

Ready to Work With a CPA Who Understands Greenwich Businesses?

Get started today. We’ll analyze your tax situation and provide an upfront estimate with no obligation.

Get Started
Licensing Disclaimer: SDO CPA LLC is a Texas-registered CPA firm providing tax preparation, bookkeeping, and advisory services to clients nationwide under CPA practice mobility provisions. SDO CPA does not hold a CPA license in Connecticut. Services requiring CPA licensure are performed by Texas-licensed CPAs. We do not provide attest services (audits, reviews, or compilations) for Connecticut entities. Per Texas State Board of Public Accountancy regulations (22 TAC §501.82).