Bethesda CPA Firm for S-Corps & Small Businesses

Looking for a CPA in Bethesda? SDO CPA provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Bethesda 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 Bethesda 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 Bethesda’s Healthcare & NIH, Government Consulting, Financial Services economy. Whether you’re managing NIH-adjacent researchers and consultants managing grant-funded income, consulting fees, and intellectual property royalties across multiple entities or capitalizing on NIH’s $47 billion annual budget and Walter Reed National Military Medical Center create the world’s densest concentration of biomedical research and consulting opportunities, SDO CPA provides the virtual accounting support your business needs.

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

Key Takeaways: Bethesda CPA Services

  • Virtual CPA services — Full tax, bookkeeping, and advisory support without geographic limitations
  • Maryland tax expertise — 2-5.75% income tax plus county income tax (2.25-3.2% additional). Pass-through entity tax available. planning and multi-state compliance
  • Industry focus — Specialized experience with Healthcare & NIH, Government Consulting, Financial 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 Bethesda, MD

Bethesda is the epicenter of America’s biomedical research establishment, home to the National Institutes of Health’s main campus with its $47 billion annual budget and 20,000+ employees, along with Walter Reed National Military Medical Center and the Naval Medical Research Center. The Wisconsin Avenue and Old Georgetown Road corridors house hundreds of biotech firms, pharmaceutical consultancies, and healthcare startups that serve the NIH ecosystem. Bethesda Row and Woodmont Triangle’s dining and retail districts support a vibrant consumer economy for the community’s 67,000 residents. Marriott International’s global headquarters in downtown Bethesda anchors the hospitality sector. Montgomery County’s 3.2% local income tax, combined with Maryland’s 5.75% state rate, creates a combined 8.95% effective tax rate for business owners. SDO CPA works with Bethesda biotech professionals and government consultants on PTET elections to offset Montgomery County’s high local tax, S-Corp structuring for NIH consultants, intellectual property income planning, and multi-state compliance for DMV-area businesses.

Maryland Tax Planning Tip

Maryland’s combined state and county income tax can reach 8.95% (5.75% state + 3.2% county in some jurisdictions). The pass-through entity tax (PTET) election is critical for S-Corp and partnership owners because it lets the entity pay both state and county tax, generating a federal deduction that bypasses the $10,000 SALT cap. This is especially valuable in high-tax counties like Howard, Montgomery, and Prince George’s.

Bethesda is home to 6,800+ small businesses and a population of 67,403. From Healthcare & NIH, Government Consulting, Financial Services to professional services, Bethesda business owners need CPAs who understand NIH-adjacent researchers and consultants managing grant-funded income, consulting fees, and intellectual property royalties across multiple entities and can provide year-round tax planning — not just compliance.

CPA Services for Bethesda Businesses

Common Challenges for Bethesda Business Owners

Challenge

Bethesda businesses often face NIH-adjacent researchers and consultants managing grant-funded income, consulting fees, and intellectual property royalties across multiple entities, 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 Bethesda’s business environment, helping you handle NIH-adjacent researchers and consultants managing grant-funded income, consulting fees, and intellectual property royalties across multiple entities with confidence.

Challenge

Many Bethesda 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 Bethesda 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 structured my Bethesda biotech consulting firm to handle NIH contracts and private clients. Their PTET election saved us $44,800 against Montgomery County’s brutal combined tax rate.”
— Dr. Helen R., Biotech consulting firm founder in Bethesda

How to Get Started With SDO CPA

1

Schedule Your Free Consultation

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

Maryland Tax Expertise

We understand 2-5.75% income tax plus county income tax (2.25-3.2% additional). Pass-through entity tax available. and help Bethesda 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 Bethesda 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 Bethesda?
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 Bethesda business?
Yes. CPAs can prepare tax returns and provide accounting services for clients in any state. SDO CPA serves Bethesda 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 Healthcare & NIH businesses?
Yes. Bethesda’s Healthcare & NIH 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 Bethesda businesses?
Yes. Our fractional CFO services provide cash flow forecasting, budgeting, financial modeling, and strategic planning for Bethesda businesses generating $500K+ in revenue that need financial leadership without a full-time hire.
Should my Bethesda 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 Bethesda business during your free consultation. Learn about our bookkeeping services.

Resources for Bethesda Business Owners

Also Serving Greater Washington DC Metro

SDO CPA provides virtual CPA services to businesses throughout Greater Washington DC Metro and Maryland.

Ready to Work With a CPA Who Understands Bethesda 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 providing tax preparation, bookkeeping, and advisory services to clients nationwide under CPA practice mobility provisions. SDO CPA does not hold a CPA license in Maryland. Services requiring CPA licensure are performed by Texas-licensed CPAs. We do not provide attest services (audits, reviews, or compilations) for Maryland entities. Per Texas State Board of Public Accountancy regulations (22 TAC §501.82).