We work with you on a personal level to determine the best solutions for your unique needs, then leverage our seasoned expertise to achieve the best possible results.


We are your trusted partner in success. Our firm is large enough to offer a full range of professional services at a fair price, but small enough to give you the individual attention that you deserve.


Rest assured that when a need arises, our firm is ready and capable to handle everything for you so you can focus on what matters most to you.

Stephen Olney and Tristaan Petullo have been partners/co-owners of ACCUplus Financial Services, Inc. since 1996. Stephen has been preparing tax returns for over forty years and Tristaan has been preparing tax returns for over thirty years. Our office staff provides experience and expertise in taxation and tax/financial planning to their clients. Their priority is to offer personalized and professional service to their clients.

Office and Support Staff:

  • Patricia Cossette
  • Alexa Petullo
  • Carson Petullo

Registered Tax Professionals:

  • Lynne Garafola
  • Joan Gendron
  • Peter Groenendyk
  • Stephen Olney
  • Tristaan Petullo
  • Kate Secor
  • Viola Tomm

For 2022-23 tax season we still prefer to minimize contact in our office so we ask that you continue to drop off, email, mail or send your tax information through our secure portal on our website if possible.

We are open year-round by appointment only.  Please call the office to schedule at (978) 251-0405 or  Thank you for your understanding.

For 2021 tax returns please be aware that we need to know the exact amount of stimulus checks and/or advance child tax credits you received in 2021. Not having these exact amounts will impact your refund and/or tax return.