Tax and CPA services from CPA firm in Columbia, MD

Columbia moves fast, and your finances can change just as quickly. Watter CPA, is a CPA firm in Columbia, MD, with nearly 4 decades of experience serving individual taxpayers and establishments. We bring order to the recordkeeping mechanisms of all kinds and fully align with deadlines. Book a quick call today and tell us about your initial focus.
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States Served
50
We're peer-reviewed with clients in all 50 states.
Years of Experience
14+
Average years of audit & taxation experience per staff member.
Managing Auditors
50
Striving for customer satisfaction is top priority.

Columbia Accounting Services for People With Full Calendars

Columbia has many commuters, remote workers and establishments having issues with several income streams. Our team addresses a quality workflow for documents in order to protect the valuable data. Your Columbia CPA sees the whole picture, then establishes a applicable plan.
Who we are
Who we serve

Local Knowledge You Can Use: A CPA Firm in Columbia, MD

Our diverse team of Certified Public Accountants, Enrolled Agents, and financial advisors is dedicated to serving:
  • High-net-worth individuals
  • Small business owners and startups
  • Real estate investors
  • Cryptocurrency traders and blockchain businesses
  • Professionals facing IRS issues
From proactive tax planning and audit defense to business accounting and strategic advisory, our services are designed to simplify financial complexities and empower you to make confident decisions.
What We Do

Our Services

Meet Our Team

The professionals at Watter CPA are passionate experts known for their meticulous attention to detail and pursuit of excellence. Each member of our team brings extensive experience and specialized knowledge to every client engagement, delivering accurate, high-quality accounting solutions. Clients trust our specialists for their reliability, integrity, and steadfast commitment to delivering exceptional results in every aspect of our service.
Kenneth J. Watter
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Kenneth J. Watter
Founder

Kenneth J. Watter

Founder

We honor the legacy of Ken Watter, who passed away on December 4, 2023. Ken was a highly successful Certified Public Accountant and a dedicated community member in Montgomery County. His commitment to excellence and unwavering dedication to his clients have left an indelible mark on our firm.

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Christina Frangou
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Christina Frangou
Director of Operations and Business Development

Christina Frangou

Director of Operations and Business Development

Christina specializes in business development and marketing strategies within financial and accounting systems. Christina has worked in the financial field for over 20 years, in Europe, the UK and the US. She has worked for major corporations and ran her own successful U.S. financial services practice. She holds financial licenses from the London School of Banking and various U.S. States. Christina is originally from London and enjoys playing tennis, hiking and the Arts with her son. She speaks Greek as a second language.

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Amy Milliken
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Amy Milliken
Senior Tax Accountant

Amy Milliken

Senior Tax Accountant

Amim Milliken is an analytical and detail-oriented Senior Tax Accountant with extensive experience across individual, business, and corporate tax returns. She currently serves clients at Dimov Tax Associates and JDA TSG, where she prepares and reviews complex tax filings, provides client support, and ensures compliance with evolving tax laws. With a strong background in QuickBooks, payroll, reconciliation, and financial reporting, Amim brings precision and integrity to every engagement. Known for her resourcefulness, clear communication, and client-first approach, she excels in delivering accurate results while maintaining confidentiality and professionalism.

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Google Review

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Why Choose Watter CPA?

Unmatched Experience & Personalized Service
  • Decades of IRS and tax expertise, including former IRS agents and legal tax strategists
  • Proven track record with thousands of resolved cases, from routine filings to high-stakes audits
  • Dedicated advisor for every client, ensuring consistent, tailored support
  • Custom strategies, generic solutions based on your unique financial picture.
Trust, Transparency & Community Commitment
  • Ethical, client-first practice: your best interests always come first
  • Clear, jargon-free communication for straightforward advice
  • Remote and in-person support, serving clients nationwide from our local office
  • Active involvement in supporting local businesses and entrepreneurs.

Our Mission & Values

At Watter CPA, our mission is to minimize your tax burden, simplify your financial life, and provide proactive strategies that drive growth and security. We are committed to:
  • Building lasting relationships based on trust and transparency
  • Delivering high-quality, client-focused solutions
  • Staying ahead of industry changes to offer innovative advice
  • Supporting our community’s growth and success.
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I’ve been working with Ken and his team for the last twenty five years and they always do such a nice job on our return preparation. The whole office is super committed and helpful. In dealing with the staff I’ve always seen such a high level of commitment from each of their personnel. We’ve used them for dozens of client returns and for complex non filers to catch them up on old returns as well.

– Jeffrey Katz
Chief Financial Officer, Katz Enterprises

Decades of experience with this company. Extremely knowledgeable, dedicated, prompt and personable.  Real winners.

– Margaret Mattson
Director of Operations, Mattson Holdings

I have been to several accountants, Ken and Alice are the best in service, knowledge, and giving me peace of mind... I highly recommend them!

– A C.
C & Co. Consulting

The team at Watter CPA has been instrumental in helping me navigate complex tax situations. Their attention to detail and knowledge of tax laws saved me significant money.

Jordan Lee
Los Angeles, USA

About Rockville

Rockville, Maryland, stands out as a dynamic hub for business and innovation in the Washington, D.C. metropolitan area. As home to the renowned I-270 Technology Corridor, Rockville attracts leading companies in biotechnology, healthcare, and technology, supported by a highly educated workforce and proximity to major research institutions. The city’s business-friendly policies and strong infrastructure foster growth for startups and established enterprises alike. This thriving environment makes Rockville an ideal location for accounting, tax, and advisory services tailored to support the needs of local businesses, entrepreneurs, and professionals as they navigate today’s competitive landscape.
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Address: 5 N Adams St, Rockville, MD 20850

Hours:
  • Monday, 9 AM–5 PM
  • Tuesday, 9 AM–5 PM
  • Wednesday, 9 AM–5 PM
  • Thursday, 9 AM–5 PM
  • Friday, 9 AM–5 PM
  • Saturday, Closed
  • Sunday, Closed

Driving Direction

Faq's

Frequently Asked Questions

At Watter CPA, we believe that understanding your needs is the first step toward providing exceptional service. Determining the specific service required involves a thorough review of your financial situation, which is only possible with proper documentation and accurate data. This approach helps us deliver tailored solutions that best meet your needs and compliance requirements.

Below, you will find answers to some of the most frequently asked general questions. If you have more specific inquiries or require additional information, please feel free to Contact Us.

General Questions

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What types of tax planning services do you offer?
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How often should I meet with my CPA?
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Can you help with IRS issues or tax problems?
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What is the process for starting a new business with your help?
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Do you offer virtual consultations?
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How do you ensure the confidentiality and security of my financial information?
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What should I do if I receive a tax notice from the IRS?
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How do I get started with Watter CPA?
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Do you electronically file my tax return or do I have to mail it in myself?
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Do you prepare out-of-state tax returns? 
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Can you help with Cryptocurrency, Blockchain, or NFTs?
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Can you file an extension for my tax return?
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What documents do I need to bring to do my taxes?
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Should I file my tax return as Married Filing Joint or Married Filing Separate?
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My child is in college. Can I still claim them on my tax return? 
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I received an inheritance. Do I have to report that on my tax return? 
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My elderly parents are not sure if they have filed taxes for the past few years. Can you help me find out? 
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My ex-spouse claimed our child erroneously on their tax return. What can I do? 
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