Westminster CPA Firm for S-Corps & Small Businesses

Looking for a CPA in Westminster? SDO CPA provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Westminster 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 Westminster 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 Westminster’s Retail, Technology, Professional Services economy. Whether you’re managing Managing sales tax for retailers in Westminster’s major shopping centers while competing in the Denver metro area’s tight labor market and navigating multi-jurisdiction compliance or capitalizing on Capitalizing on Westminster’s position between Denver and Boulder to attract tech talent while optimizing entity structures and R&D credits for growing software companies, SDO CPA provides the virtual accounting support your business needs.

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

Key Takeaways: Westminster CPA Services

  • Virtual CPA services — Full tax, bookkeeping, and advisory support without geographic limitations
  • Colorado tax expertise — Colorado has a 4.4% flat income tax with 2.9% state sales tax and 4.4% corporate rate planning and multi-state compliance
  • Industry focus — Specialized experience with Retail, Technology, 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 Westminster, CO

Westminster’s economy centers on major retail destinations including the Westfield Westminster and Westminster Promenade shopping centers, generating substantial sales tax revenue for the city and complex compliance obligations for retailers. Westminster’s 3.85% city sales tax combines with Adams County’s rate for a total of 8.0%, and as a home-rule city, Westminster requires separate filing from Colorado state sales tax returns. Technology companies have increasingly located in Westminster to access Denver’s tech talent while enjoying lower office costs than downtown Denver or Boulder—software firms in Westminster Corporate Center and Church Ranch area face entity structuring decisions and potential R&D credit opportunities often missed by non-specialist CPAs. Professional service businesses including IT consultancies, engineering firms, and financial advisors serve clients across the Front Range and must navigate multi-state nexus issues as they work with remote clients. Westminster’s strategic location between Denver and Boulder creates opportunities for businesses serving both markets. SDO CPA serves Westminster business owners with expertise in retail sales tax compliance, R&D credit documentation for tech companies, entity optimization under Colorado’s flat tax structure, and multi-state nexus planning for service firms with expanding geographic reach.

Colorado Tax Planning Tip

Colorado’s flat 4.4% income tax rate applies to both individuals and corporations equally. For S-Corp owners, pass-through income is taxed at this flat rate with no brackets to worry about. However, Colorado’s patchwork of local sales tax jurisdictions — over 70 home-rule cities with their own rates — makes sales tax compliance complex. Use Colorado’s Sales & Use Tax System (SUTS) to simplify multi-jurisdiction filing.

Westminster is home to 7,900+ small businesses and a population of 116,317. From Retail, Technology, Professional Services to professional services, Westminster business owners need CPAs who understand Managing sales tax for retailers in Westminster’s major shopping centers while competing in the Denver metro area’s tight labor market and navigating multi-jurisdiction compliance and can provide year-round tax planning — not just compliance.

CPA Services for Westminster Businesses

Common Challenges for Westminster Business Owners

Challenge

Westminster businesses often face Managing sales tax for retailers in Westminster’s major shopping centers while competing in the Denver metro area’s tight labor market and navigating multi-jurisdiction compliance, 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 Westminster’s business environment, helping you handle Managing sales tax for retailers in Westminster’s major shopping centers while competing in the Denver metro area’s tight labor market and navigating multi-jurisdiction compliance with confidence.

Challenge

Many Westminster 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 Westminster 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 identified $47,300 in R&D credits we didn’t know we qualified for. Their software development expertise made the documentation process smooth and our credits withstood IRS review.”
— Brandon W., Software company CEO in Church Ranch in Westminster

How to Get Started With SDO CPA

1

Schedule Your Free Consultation

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

Colorado Tax Expertise

We understand Colorado has a 4.4% flat income tax with 2.9% state sales tax and 4.4% corporate rate and help Westminster 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 Westminster 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 Westminster?
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 Westminster business?
Yes. CPAs can prepare tax returns and provide accounting services for clients in any state. SDO CPA serves Westminster 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 Retail businesses?
Yes. Westminster’s Retail 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 Westminster businesses?
Yes. Our fractional CFO services provide cash flow forecasting, budgeting, financial modeling, and strategic planning for Westminster businesses generating $500K+ in revenue that need financial leadership without a full-time hire.
Should my Westminster 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 Westminster business during your free consultation. Learn about our bookkeeping services.

Resources for Westminster Business Owners

Also Serving Denver Metropolitan Area

SDO CPA provides virtual CPA services to businesses throughout Denver Metropolitan Area and Colorado.

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