Mobile CPA Firm for S-Corps & Small Businesses

Looking for a CPA in Mobile? SDO CPA provides virtual tax preparation, bookkeeping, payroll, and fractional CFO services to Mobile 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 Mobile 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 Mobile’s Shipbuilding, Aerospace, Healthcare economy. Whether you’re managing seasonal revenue tied to Gulf Coast shipping cycles and hurricane disruption planning or capitalizing on Airbus Final Assembly Line and Austal USA shipyard creating a growing advanced manufacturing cluster, SDO CPA provides the virtual accounting support your business needs.

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

Key Takeaways: Mobile CPA Services

  • Virtual CPA services — Full tax, bookkeeping, and advisory support without geographic limitations
  • Alabama tax expertise — Alabama has a graduated income tax (2%-5%) plus a business privilege tax planning and multi-state compliance
  • Industry focus — Specialized experience with Shipbuilding, Aerospace, Healthcare
  • 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 Mobile, AL

Mobile is Alabama’s port city and an increasingly important aerospace and shipbuilding hub. The Port of Mobile handles over 25 million tons of cargo annually as the state’s only deepwater port, while Airbus’s $600 million A320 family assembly facility represents the company’s only U.S. manufacturing operation. Along the Brookley Aeroplex industrial corridor, Austal USA builds Navy combat ships under $5+ billion in active contracts, employing over 4,000 workers. AM/NS Calvert’s $1.5 billion steel facility adds further industrial depth to Mobile’s manufacturing economy.

Gulf Coast businesses face distinct cash flow challenges tied to shipping cycles, seasonal tourism revenue, and hurricane disruption planning. Alabama’s graduated income tax requires careful planning for business owners managing contracts that span both commercial and government sectors. Mobile companies serving customers along the I-10 corridor from New Orleans to Pensacola also face multi-state sales tax and nexus obligations that add filing complexity.

SDO CPA works with Mobile business owners across shipbuilding, aerospace supply chain, maritime services, and healthcare to set up proper job costing, manage seasonal cash flow forecasting, and optimize entity structures for both state and federal tax efficiency. Whether you’re an Airbus supplier at Brookley or a maritime services company operating from the Port of Mobile, we provide monthly bookkeeping and fractional CFO services designed for contract-driven and seasonal businesses.

Alabama Tax Planning Tip

Alabama’s graduated income tax tops out at 5% on income over $3,000 (single) / $6,000 (married). S-Corp owners should evaluate the pass-through entity tax election (PTET) to work around the federal SALT deduction cap. Alabama also offers a unique federal income tax deduction on state returns — one of only three states allowing this.

Mobile is home to 13,000+ small businesses and a population of 184,952. From Shipbuilding, Aerospace, Healthcare to professional services, Mobile business owners need CPAs who understand seasonal revenue tied to Gulf Coast shipping cycles and hurricane disruption planning and can provide year-round tax planning — not just compliance.

CPA Services for Mobile Businesses

Common Challenges for Mobile Business Owners

Challenge

Mobile businesses often face seasonal revenue tied to Gulf Coast shipping cycles and hurricane disruption planning, 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 Mobile’s business environment, helping you handle seasonal revenue cycles and hurricane disruption planning with confidence.

Challenge

Many Mobile 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 Mobile 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 helped our shipyard services company manage seasonal cash flow and set up proper job costing. They saved us $9,500 on our first S-Corp filing.”
— Angela M., Marine services company owner in Mobile

How to Get Started With SDO CPA

1

Schedule Your Free Consultation

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

Alabama Tax Expertise

We understand Alabama has a graduated income tax (2%-5%) plus a business privilege tax and help Mobile 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 Mobile 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 Mobile?
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 Mobile business?
Yes. CPAs can prepare tax returns and provide accounting services for clients in any state. SDO CPA serves Mobile 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 Shipbuilding businesses?
Yes. Mobile’s Shipbuilding sector has unique accounting needs including government contract compliance, job costing for vessel construction, and seasonal cash flow management 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 Mobile businesses?
Yes. Our fractional CFO services provide cash flow forecasting, budgeting, financial modeling, and strategic planning for Mobile businesses generating $500K+ in revenue that need financial leadership without a full-time hire.
Should my Mobile 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 Mobile business during your free consultation. Learn about our bookkeeping services.

Resources for Mobile Business Owners

Also Serving Gulf Coast Alabama

SDO CPA provides virtual CPA services to businesses throughout Gulf Coast Alabama and Alabama.

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