Google Reviews · Frederick, MD

What Our Clients Say About Mercer Flanagan

Real reviews from real Frederick County business owners, families, and nonprofits who trust us with their taxes year after year.

★★★★★ 5.0 · 34 Google Reviews
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J

J Vernick

2 days ago
★★★★★

"Roy took a two year situation and worked the situation without any objections, like I had received with other accountants. My mom died three years ago, then the accountant she had went through a stroke; her personal returns were easy but the two farm returns covered federal and state and we missing information. We worked together and got all the returns submitted. Roy didn't hesitate; great communication; he never once said 'Well you should have' like I have been told by another accountant. Accountants are the most important employee, and Roy was easy to work with."

Estate & Farm Tax Returns
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Danielle Rozier

10 days ago
★★★★★

"Roy has been a great accountant and a trusted resource for my business. He's responsive, patient with my many questions, and always willing to help me understand the financial side of things. I truly appreciate his guidance and support!"

Business Tax Advisory
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Sherrie Kennedy

10 days ago
★★★★★

"Roy and staff are wonderful to work with. Quick response and always pleasant. Business taxes were prepared timely and stress free."

Business Tax Preparation
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Jason DuChez

10 days ago
★★★★★

"Mercer Flanagan did both my personal and business taxes and did a great job on both. Service was excellent throughout — responsive, organized, and no chasing him for answers. On top of that, his pricing was very reasonable for the amount of work involved. Highly recommend."

Business & Personal Taxes
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Stephen OBrien

11 days ago
★★★★★

"Roy Cogliandolo has been my CPA, tax advisor and financial consultant for three years. He has more than exceeded my modest expectations. Roy is knowledgeable, collegial, prompt and conscientious. I recommend him unequivocally for financial and tax related assistance and facilitation."

Tax & Financial Consulting
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Glenn Fisher

11 days ago
★★★★★

"I have worked with Mercer Flanagan over the past five or six years as my tax situation became more complex after my retirement, the inheritance of my father's estate and my becoming guardian of my handicapped sister. Mercer Flanagan has provided excellent financial advice and tax preparation for these more complex situations. Easy to work with and very attuned to my personal situation, I highly recommend this firm to anyone in need of similar tax assistance."

Estate & Complex Tax Planning
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Linda Shea

12 days ago
★★★★★

"I've used Mercer Flanagan for my taxes for over 15 years, beginning when I lived in Frederick. They are professional, responsive, and accurate — all things you need in someone who is handling tax returns. I live out of state now, but still use their services, as they have a progressive electronic platform that allows me to upload tax documents. In addition to income tax return preparation, they also provided me with guidance on financial planning and retirement."

Long-Term Client · Financial Planning
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Nicole Ausherman

12 days ago
★★★★★

"Knowledgeable, professional and great at what they do!"

General Tax Services
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Dan Lawton

12 days ago
★★★★★

"Roy and team were easy to work with, readily available for communication, and did a great job on our tax return. Best of all, the price was right. I highly recommend."

Tax Preparation
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Mike Mens

13 days ago
★★★★★

"I rarely write reviews, but the team at Mercer and Flanagan have been doing a great job for us here at The Dutch Plant Farm that goes back all the way to 1982. I like to give a shout out to Roy and his team for doing an excellent job of managing our taxes and prepare our financial statements."

Farm Business · Financial Statements
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Michael Kurtianyk

13 days ago
★★★★★

"Mercer Flanagan makes a potentially nerve-wracking experience go smoothly and efficiently. A great firm!"

Tax Preparation
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K MSTAR

13 days ago
★★★★★

"Great accountants!! They prepare our business and my personal taxes. Great attention to detail!"

Business & Personal Taxes
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Joe Pearson

13 days ago
★★★★★

"We have been going to Mercer Flanagan for over 10 years and we are looking forward for the next 10! These guys are super and fast. They know their stuff and keep up with all the recent tax law changes. The do our personal tax returns and our non-profit LLC. We love them!!"

Personal & Nonprofit Tax
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mountairyelect

13 days ago
★★★★★

"Knowledgeable, friendly, courteous, timely in preparing both my business and personal returns. Very pleasant to work with. I am continuing to have them prepare my taxes."

Business & Personal Taxes
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Debbie Kachman

13 days ago
★★★★★

"Mercer Flanagan (Roy) has been doing my taxes for 5 years. They have been fantastic to work with."

Long-Term Client
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Grant Morningstar

13 days ago
★★★★★

"Top tier CPA services. Highly recommend for small businesses."

Small Business Tax
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Ken Brulia

2 weeks ago
★★★★★

"I've been with Mercer Flanagan for 10+ years and have always been treated nicely. Their professionalism and attention to detail provides me comfort when working with complex business tax situations. Their rates are very reasonable and they are always available to answer any questions."

Complex Business Tax
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Nancy Waybright

3 weeks ago
★★★★★

"Prepared our amended tax returns for federal and two other states. Was quick to respond to questions and quite helpful when additional information was requested. Appointments scheduled easily with a call to office. Accountant and office person professional and easy to talk to."

Multi-State Amended Returns
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Scott Floyd

3 weeks ago
★★★★★

"Professional services and fair pricing. Quick response time to questions. Highly recommended this Firm. Roy and Lorraine were wonderful to work with."

Business Tax Preparation
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Dave Shane

Frederick, MD · 3 weeks ago
★★★★★

"Mercer Flanagan has done our tax return prep for decades; we would not have it any other way! They've also provided very sound and detailed advice for the financial questions that arise while raising a family and making the critical long-term decisions as we grow older. Everyone is professional, courteous and helpful. We've worked for several years now with Roy Cogliandolo. Roy is carrying on in the best tradition of Mercer Flanagan. Their value proposition is excellent."

Business & Personal Taxes · Decades-Long Client
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Dinesh Boppana

Frederick, MD · 2 weeks ago
★★★★★

"Excellent accountant, been using them since 2015. Very thorough. Very good for small business. We definitely recommend using them!"

Small Business Tax
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Amanda Kondash

Frederick, MD · 2 weeks ago
★★★★★

"I have had Mercer, Flanagan & Company file my taxes for the last few years now. It's always been a seamless and stress-free experience. I highly recommend using them for your tax and accounting needs."

Tax Preparation
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Zach Turbopolis

Local Guide · 2 weeks ago
★★★★★

"Great service provided. Very professional."

General Tax Services
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Riza Kodheli

Frederick, MD · 4 months ago
★★★★★

"Roy Cogliandolo is an excellent CPA and a genuinely good person to work with. He is highly knowledgeable, reliable, and always willing to help and explain things clearly. Roy has strong expertise in tax preparation and planning, consistently handling returns accurately and efficiently. He is also very skilled with QuickBooks, providing clear, organized bookkeeping and practical guidance. I learned a lot working under his leadership and truly appreciated his professionalism, integrity, and attention to detail."

Tax Preparation & QuickBooks
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Hilario Rios

Frederick, MD · 4 months ago
★★★★★

"I have known Roy Cogliandolo for over 16 years. I run a bookkeeping business and regularly refer my clients to him for tax filings. He is very professional, knowledgeable, and trustworthy. I highly recommend him for both business and personal tax services."

Business & Personal Taxes
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BJ Borden

Frederick, MD · 4 months ago
★★★★★

"I highly refer Mercer Flanagan and Roy Cogliandolo. They go above and beyond for their clients. I have used them for many years. They give me peace of mind when dealing with the headaches of business and personal taxes."

Business Taxes · Long-Term Client
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Ryan Codd

Frederick, MD · 4 months ago
★★★★★

"I was referred to Roy because I felt that my current CPA could have done better. With Roy's knowledge my business was able to qualify for deductions that I didn't get in the past and saved the company a lot of money. Call and ask for Roy."

Business Tax Deductions
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Edward Daniel

Frederick, MD · 4 months ago
★★★★★

"Mr. Roy Cogliandolo (CPA) is the best accountant I have ever worked with. Maximizing deductions and understanding tax laws is his expertise and it shows. Great price. Thank you!!!!!!!"

Tax Preparation
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Evelyn Sotelo Nunez

Local Guide · 2 hours ago
★★★★★

"What sets Mercer Flanagan apart is their attention to detail and commitment to helping clients make informed financial decisions. Whether you need tax preparation, bookkeeping, payroll services, or strategic tax planning, they deliver professional service with a personal touch. I highly recommend Mercer Flanagan to anyone!"

Business Tax Planning
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