CPA & Tax Accountant Serving Rockville MD | Mercer Flanagan

Rockville Deserves More Than a Chain Preparer

Whether you're a federal contractor with multi-agency income, an NIH researcher navigating grant and salary taxes, a Rockville small business owner managing Montgomery County compliance, or a high-income household with investments and estate planning needs  we handle returns that actually require expertise

Rockville Maryland Town Square

Full-Service Tax & Accounting Solutions for Rockville

Rockville's mix of federal employment, biotech salaries, and small business ownership creates tax situations that off-the-shelf software wasn't built for. We handle the complexity so you keep more of what you earn in one of Maryland's most expensive counties to live and do business in.

Individual Tax Prep

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

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

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

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

Financial Statement Compilations

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

  • Compiled financial statements
  • Monthly bookkeeping available
  • Bank-ready documentation
  • Professional CPA preparation

Non-Profit Tax Returns

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 guidance
  • Tax-exempt status support
  • Professional CPA tax preparers

Individual or Business Tax Planning

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

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

Questions Rockville Clients Ask Us

A few things we hear most often from clients in the Rockville area

I'm a federal contractor billing multiple agencies. How should I plan for taxes?

Contractors billing multiple federal agencies often have income spread across several contract vehicles with different payment timing, which makes quarterly estimated tax planning more complex than a typical small business. We help track this accurately so a slow invoice month doesn't catch you off guard later.

I work at NIH and have a mix of salary and grant-related income. Does that complicate my return?

Researchers with grant funding, fellowship stipends, or supplemental income alongside a regular salary often have reporting requirements that differ from a standard W-2 return, and the tax treatment depends on exactly how the funding is structured. We help Rockville's research community make sure each income source is reported correctly.

My business is in Rockville and dealing with Montgomery County compliance feels like a full-time job. Can you help with that?

Montgomery County has its own business licensing, personal property tax, and local compliance requirements layered on top of state and federal obligations. We help Rockville business owners stay current on all three levels so nothing falls through the cracks.

Do you work with Rockville clients remotely, or do we need to come into your Frederick office?

Most Rockville clients work with us entirely remotely — secure document upload, video calls, and e-signatures cover nearly everything. We're glad to meet in person if you'd prefer, but distance has never been a barrier for the clients we already serve there.

Ready to Talk to a Rockville-Area CPA?

Book a free consultation and we'll tell you honestly whether we can help — and what it would cost. No pressure, no obligation.

Book a Free Consultation
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