Houston CPA Firm for S-Corps & Small Businesses

Looking for a CPA in Houston? SDO CPA provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Houston 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 Houston 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 Houston’s Energy, Healthcare, Aerospace economy. Whether you’re managing volatile revenue cycles tied to energy market fluctuations or capitalizing on Houston’s position as the energy capital of the world with massive B2B service demand, SDO CPA provides the virtual accounting support your business needs.

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

Key Takeaways: Houston CPA Services

  • Virtual CPA services — Full tax, bookkeeping, and advisory support without geographic limitations
  • Texas tax expertise — Texas has no state income tax, but franchise tax (margin tax) applies to most businesses planning and multi-state compliance
  • Industry focus — Specialized experience with Energy, Healthcare, Aerospace
  • 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 Houston, TX

Houston is the 4th largest city in the United States with 2.3 million residents and the undisputed energy capital of the world. The Energy Corridor along I-10 West houses the headquarters of ExxonMobil, ConocoPhillips, and hundreds of midstream operators and oilfield service companies whose revenue cycles swing with commodity prices. These fluctuations create complex accounting needs including percentage depletion deductions, intangible drilling cost elections, and multi-state workforce nexus issues for crews deployed across the Permian Basin and Eagle Ford Shale.

The Texas Medical Center is the world’s largest medical complex, employing over 106,000 people and driving demand for healthcare-focused accounting services ranging from physician practice management to medical device startup bookkeeping. NASA’s Johnson Space Center anchors a growing aerospace and defense cluster in the Clear Lake area, where government contractors face specialized cost-plus accounting and DCAA compliance requirements.

SDO CPA helps Houston business owners with S-Corp structuring, energy-specific deductions, franchise tax optimization, and proactive cash flow planning during commodity price swings. Whether you’re running a Midtown consulting firm or a Katy-based equipment rental company, we provide monthly financial reporting and tax strategy tailored to Houston’s boom-and-bust business cycles.

Texas Tax Planning Tip

Texas doesn’t have a state income tax, but the Texas franchise tax (margin tax) applies to businesses with revenue above $2.47 million. Houston energy companies should carefully calculate their COGS deduction under the standard franchise tax method — subcontractor costs, equipment rentals, and field labor are often under-reported, resulting in thousands of dollars of overpayment.

Houston is home to 185,000+ small businesses and a population of 2,314,157. From Energy, Healthcare, Aerospace to professional services, Houston business owners need CPAs who understand managing volatile revenue cycles tied to energy market fluctuations and can provide year-round tax planning — not just compliance.

CPA Services for Houston Businesses

Common Challenges for Houston Business Owners

Challenge

Houston businesses often face volatile revenue cycles tied to energy market fluctuations, 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 Houston’s business environment, helping you handle volatile revenue cycles tied to energy market fluctuations with confidence.

Challenge

Many Houston 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 Houston 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 took over our oilfield services company’s books after our previous accountant couldn’t handle multi-state payroll. They streamlined our reporting and found $22,000 in missed franchise tax deductions.”
— Robert C., Oilfield services company owner in Houston

How to Get Started With SDO CPA

1

Schedule Your Free Consultation

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

Texas Tax Expertise

We understand Texas has no state income tax, but franchise tax (margin tax) applies to most businesses and help Houston 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 Houston 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 Houston?
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 Houston business?
Yes. CPAs can prepare tax returns and provide accounting services for clients in any state. SDO CPA serves Houston 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 Energy businesses?
Yes. Houston’s Energy 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 Houston businesses?
Yes. Our fractional CFO services provide cash flow forecasting, budgeting, financial modeling, and strategic planning for Houston businesses generating $500K+ in revenue that need financial leadership without a full-time hire.
Should my Houston 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 Houston business during your free consultation. Learn about our bookkeeping services.

Resources for Houston Business Owners

Also Serving Greater Houston Area

SDO CPA provides virtual CPA services to businesses throughout Greater Houston Area and Texas.

Ready to Work With a CPA Who Understands Houston Businesses?

Schedule your free consultation today. We’ll analyze your tax situation and provide an upfront estimate with no obligation.

Schedule a Call
Licensing Disclaimer: SDO CPA LLC is a Texas-registered CPA firm. Our team provides tax preparation, bookkeeping, and advisory services to clients nationwide. 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).