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10 Post Office Square, Suite 605N, Boston, MA 02109


William P. Gagnon
E: [email protected]
T: +1 617 451 0303

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United States

GAGNONtax works closely with professionals nationwide to solve their tax challenges, using creative strategies and expertly-crafted technology. We have the expertise and experience of the Big Four, but not the layers of people and processes. Whether it’s through our tax consulting, tax compliance, or tax technology practices, we look at your specific challenges to find the perfect balance between risk and reward.

We believe that tax strategy requires art and science, both of which we warmly embrace. That enables us to see our clients as individuals and to infuse as much flexibility as possible into meeting their needs. Another reason our clients are so confident in their tax strategies is the access they have to our technology support team and our senior GAGNONtax professionals. Our team’s experience and expertise are unsurpassed, but their availability is unobstructed.



United States

Current time in Boston, United States

19:04 PM 27 September 2022
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William P. Gagnon

Head Office

Ten Post Office Square, Boston, MA 02109

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