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Welcome!

Our clients are located in Metrowest Boston and surrounding communities. Work includes audits, reviews, compilations, tax preparation for businesses, not-for-profits, individuals, trusts and assisting with tax matters. We provide business consulting, planning, budgeting, cash flow preparation and analysis, assistance with business loans and working capital needs. We also perform Peer Review and consulting services for CPA firms.

Marshall has worked for small, medium and as a partner of a large Boston CPA firm. In 1999 he started Marshall Karp, P.C.

We are members of CPAConnect, an association of small CPA firms throughout the United States, the (AICPA) American Institute of CPAs, the AICPA Private Companies Practice Section, the AICPA Tax Section, the AICPA Not-For-Profit Section and the (MSCPA) Massachusetts Society of CPAs.

Marshall served as a member of the AICPA Technical Issues Committee, which champions accounting policies for small businesses. He is past chair of the MSCPA Peer Review Executive Committee and Board and continues as executive Board Member.

Marshall served on the board of directors and finance committee, of a not-for-profit day school.

Links to external sites are provided as part of our website as a courtesy service. They are not endorsed and their accuracy has not been verified by Marshall Karp, P.C., and Marshall Karp of staff.

Please contact us.

We do welcome any questions or comments you may have. Please feel free to contact us at any time.


  • Telephone...
  • (508) 655-9090
  • Fax...
  • (508) 655-9899
  • Marshall Karp, P.C., CPA
  • 209 West Central Street
  • Natick, MA 01760

You can also send us a message directly through the contact page of this website.