Partnering with Clients to

Achieve Success

We Help You Succeed by Reducing Stress and Enabling You to Focus
on What You do Best.

Partnering with Clients to

Achieve Success

We Help You Succeed by Reducing Stress and Enabling You to Focus
on What You do Best.

For Years, Peter J. McMahon, P.C. has Been Providing Quality, Personalized Financial Guidance to Local Individuals and Businesses.

Our expertise ranges from basic tax management and accounting services to more in-depth services such as audits, financial statements, and financial planning.

Peter J. McMahon, P.C. is one of the leading firms in and throughout the area. By combining our expertise, experience and the team mentality of our staff, we assure that every client receives the close analysis and attention they deserve. Our dedication to high standards, hiring of seasoned tax professionals, and work ethic is the reason our client base returns year after year.

Specializing in Small Businesses

“This is our first year in business and while it has been very exciting, there have been many complex situations that require the expertise of a CPA. The team at Peter McMahon CPA always responds quickly and proficiently. They have always been available, even on short notice, to attend a meeting or participate in a conference call.

As our business grows, so have our accounting, payroll and tax requirements.
We always feel like we have a partner, not just a vendor, when working with the team at Peter McMahon CPA. We would absolutely recommend Peter McMahon CPA to any business owner who is looking for a CPA who will listen, provide excellent advice and truly partner with you. ”

Ana Lise Dabrowski

Plymouth, MA

Complete Accounting, Tax and Payroll Package for Small Businesses

We offer a comprehensive package of services designed for the needs of small businesses and their owners. All the services you need, including accounting, bookkeeping, tax planning, tax preparation, payroll and consulting. Our package is tailored to your needs and comes at a fixed monthly fee.

Meet Our Team

Peter McMahon, CPA

Peter McMahon, CPA

Founder/Owner

Susan DeFelice

Susan DeFelice

Enrolled Agent

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