CPA Near Frederick Maryland | Mercer Flanagan

Your Year-Round CPA Team

Reliable Tax and Accounting Experts

Your accountant shouldn't disappear after tax season. We're here year-round across Maryland, providing the stability and expertise you can count on.

Frederick Downtown

Your CPA Firm Serving Frederick, Gaithersburg, Hagerstown & Central Maryland

Headquartered in Frederick, we provide comprehensive tax services throughout the region — from Gaithersburg and Hagerstown to growing suburbs and small rural communities across Frederick, Montgomery, and Washington counties.

Also Serving

Ballenger Creek, Green Valley, Spring Ridge, and Lake Linganore — part of our greater Frederick and Ijamsville service area.

We also work with clients throughout the broader Washington, D.C. and Baltimore metro region, including Bethesda, Columbia, and Ellicott City.


Individual Tax Preparation

We handle your entire tax return from start to finish, finding every deduction while you relax knowing it's done right.

  • Personal CPA interview every year
  • CPA review for maximum accuracy
  • Year-round question support
  • Specialize in complex investment returns
Learn More: Individual Tax Preparation →

Small Business Tax Returns

Take business taxes completely off your plate—we handle everything so you can focus on running your business.

  • Complete business tax management
  • Quarterly planning and estimates
  • Multi-entity expertise
  • Responsive year-round support
Learn More: Small Business Tax & Bookkeeping →

Estate & Trust Tax Services

Navigate complex estate and trust taxes with specialists who handle what other firms won't touch.

  • Estate and trust specialization
  • Complex situation expertise
  • Probate and inheritance guidance
  • What other firms avoid, we handle
Learn More: Estate & Trust Tax Services →

QuickBooks Support & Training

Get your books organized and learn to use QuickBooks effectively with hands-on training from experienced CPAs.

  • QuickBooks setup and training
  • Troubleshooting support
  • Business owner focus
  • Ongoing consultation available
Learn More: QuickBooks Support & Training →

Financial Statement Preparation

Professional financial statements and bookkeeping services for businesses that need compliance documentation.

  • Compiled financial statements
  • Monthly bookkeeping available
  • Bank-ready documentation
  • Professional CPA preparation
Learn More: Financial Statement Compilations →

Non-Profit Tax & Bookkeeping

We prepare Form 990 filings and handle tax compliance for non-profit organizations of all sizes, keeping them in good standing without the headache.

  • Form 990 preparation
  • Non-profit compliance support
  • Tax-exempt status support
  • Professional CPA tax preparers
Learn More: Non-Profit Tax & Bookkeeping →

Tax Planning Services

We work with individuals and businesses throughout the year to create proactive tax strategies that reduce your tax liability and maximize deductions.

  • Tax projections for businesses and individuals
  • Multi-state tax planning
  • Change of entity or year-end planning
  • Year-end tax planning
Learn More: Tax Planning Services →

Fractional CFO Services

Get strategic CFO-level guidance without the full-time salary — monthly financial oversight and planning from an experienced CPA.

  • Monthly financial reporting
  • Cash flow forecasting
  • Budget preparation and analysis
  • KPI tracking and board reporting
Learn More: Fractional CFO Services →

Common Questions About Our Tax Service

Get clear answers to the questions most clients ask before making the switch to relationship-based tax preparation.

How much does your tax preparation service cost?

At Mercer Flanagan, we believe in transparent, upfront pricing, no surprises. Individual tax returns start at $450. Business tax returns are priced based on several factors that can raise or lower the cost, including business complexity, bookkeeping status, revenue size, and number of state filings. We publish our pricing because we have nothing to hide β€” see full pricing.

What makes your service different from other CPA firms?

We combine personal relationships with professional expertise. Every client gets a personal CPA interview annually and their tax return is reviewed by a CPA. We don't offshore our tax return preparation like the larger firms do and we provide year-round access for your tax questions.

Do I have to use a digital client portal?

No, we offer flexible service options. You can choose between digital convenience and traditional in-person service based on your comfort level.

What if my previous CPA retired or my situation is complex?

We specialize in complex tax and accounting situations and seamless transitions. In addition to individual and business tax return preparation we can help with estate taxes, trust tax returns, non-profit organizations and complicated scenarios that other firms often avoid.

Are you available outside of tax season?

Yes, we provide year-round support. We're here to answer questions, help with tax planning, and provide guidance whenever you need it.

What makes you different from the national chains and do-it-yourself software?

At Mercer Flanagan, every return is reviewed and signed by a licensed CPA, not a seasonal employee, not software, and not someone working overseas. We interview every client personally, we know your situation year after year, and we're available year-round when questions come up. Tax software and chains work fine for simple returns. We're built for people and businesses whose situations are more complex

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Do you work with clients outside of Frederick?

Yes. We serve clients throughout central Maryland including Hagerstown, Gaithersburg, Germantown, Rockville, Damascus, Mount Airy, Thurmont, and beyond. Most of our work is done remotely, so location is rarely a barrier. We have many clients in Virginia, Pennsylvania, West Virginia and many other states.

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Can you handle both my personal and business taxes?

Absolutely and we'd encourage it. When one firm handles both, we can coordinate your personal and business returns to make sure nothing falls through the cracks, entity structure is optimized, and you're not getting conflicting advice from two different preparers.

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Can you help if I'm behind on my taxes or have received an IRS notice?

Yes. We work with clients who have unfiled returns, back taxes, or IRS correspondence that needs a response. If you've received a notice or aren't sure where you stand, the first step is a free consultation so we can review the situation and tell you honestly what needs to happen next.

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Are you taking on new clients?

Yes. We're currently accepting new clients for both individual and business tax services. The best first step is an initial consultation where we'll learn about your situation, tell you honestly whether we're the right fit, and give you a clear sense of what it would cost. Β 

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