McMahon & Vigeant, PC is a Dalton, MA CPA firm serving individuals, small businesses, and nonprofit organizations. The firm presents itself as a full-service practice with a long-term focus on tax, accounting, and business consulting work for clients in the Dalton and Pittsfield area.

Its core services include tax preparation and planning, small business accounting and bookkeeping, and QuickBooks/Xero setup. The firm also lists payroll services, new business formation, IRS notice and audit help, and support for financial planning topics such as estate planning and business strategy. CPA credentials and 25 years of experience are included in the source facts.