Professional Tax Preparation & Bookkeeping Services
for Individuals & Small Businesses


Welcome and thank you for visiting Seaport Tax Services! We are a tax preparation company serving individuals and small businesses. Our office is located in Mystic, CT and we service both local and out-of-state clients.

We are accepting new 1040 clients on a very limited case-by-case basis.  We are unable to accept any new business clients at this time. All new clients must be comfortable working with us remotely utilizing our secure online portal. 

For all existing clients, please feel free to mail in your tax return documents to P.O. Box 189 Mystic CT 06355, request a link to our online secure portal to exchange data electronically, or slide documents under our seasonal office door at 14 Masons Island Rd. in Mystic.

If you have questions or details you’d like to discuss with staff, please call us at 860-536-8299 or email at and we will reach out to you.
Thank you for your continued support.

Our Mission

We believe that everyone’s valuable time should be spent where it provides the most rewarding and positive impact on their business or their personal life…

If you’re an individual, you may dread spending your quality time completing your own taxes. You’ve probably wondered if you’re doing it correctly, or getting the biggest refund you’re entitled to.

If you’re a business owner, you may feel your time and talents are better suited to your professional endeavors, rather than spending time paying bills, contacting vendors, and trying to keep up with the ever-changing muddle of accounting, taxes, and other liabilities.

How we can help…

Seaport Tax Services LLC provides all aspects of income tax preparation, from interview through e-file of individual and small business federal and state tax returns and associated schedules. Additionally, we offer all facets of bookkeeping and Federal and state tax reporting as needed.

Our tax services are provided by an Enrolled Agent Firm. Tax planning, research, and completion are always presented with speed, accuracy, and professionalism. We are available to speak with the IRS or state tax department on your behalf. We take a personal interest in every client’s financial success and overall well-being.

Please feel free to call or email with any questions you may have or to schedule a complimentary consultation or “second look” at your previously filed tax returns. We look forward to helping you take back your time, spending more of it where it belongs: building your business or just doing the things you enjoy.

Offering expert personal, year-round, individual and small business tax preparer services and bookkeeping at a fair and affordable price.

Serving clients in Southeastern Connecticut and RI, including Mystic, Stonington, Groton, Ledyard, Gales Ferry, Preston, Norwich, New London, Waterford, Pawcatuck, Westerly, and beyond.

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Photo courtesy of Connie Burianek/CJBMedia