Charlie Mamacos, CPA, MST

Charlie brings more than 16 years of experience working with businesses in the construction, real estate, hospitality, and technology sectors. His work centers on providing clear, strategic tax guidance to closely held companies and their shareholders – helping them plan ahead, reduce risk, and make confident financial decisions.

Charlie specializes in income tax preparation, tax minimization strategies, exit and succession planning, and IRS representation. His integrated approach allows him to look beyond a single tax year and understand the full picture of a business and its owners. Clients rely on him for steady guidance, thoughtful planning, and practical solutions tailored to their long-term goals.

Before co-founding MB&A, Charlie built his career serving middle-market clients at a national firm. Today, he continues to support the Northeast’s leading closely held businesses and high-net-worth individuals through a high-touch, partner-led service model.