Hallisey & D’Agostino, LLP is a full-service public accounting firm offering a wide array of accounting, tax, and advisory services to individuals and small to mid-size closely-held businesses located throughout Connecticut and the surrounding areas.

Accounting & Assurance

Whether it’s assisting with routine bookkeeping issues or advising on a complex transaction during an audit, we have the skills and resources necessary to help you produce accurate, high-quality and timely financial information.

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Tax

Tax laws and regulations are in a constant state of flux and we recognize that in addition to experience, staying up-to-date on current developments is critical in creating a comprehensive tax strategy.

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Business Advisory

From start-ups to established enterprises, businesses at every phase need sound advice to navigate operational challenges, succession planning, and an ever-changing regulatory landscape.

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Individuals

Achieving your financial goals and ultimately a secure retirement requires discipline and the right mix of personalized wealth accumulation and preservation strategies, including tax minimization and trust & estate planning.

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Tax, accounting, auditing news - Journal of Accountancy

5 state CPA societies merge
The CPA organizations of Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont have approved a merger to form the New England Society of CPAs.
Author: By Kevin Brewer
Posted: June 4, 2026, 7:13 pm
Optimism mixed among US finance leaders
CPA decision-makers in business and industry are less optimistic about the U.S. economy now when compared with the first quarter of this year, but they are slightly more optimistic about their own organizations, according to an AICPA and CIMA survey.
Author: By Kevin Brewer
Posted: June 4, 2026, 4:01 am
SEC shares 3 goals in proposed 2026–2030 strategic plan
The commission is accepting comments on the draft through July 2.
Author: By Bryan Strickland
Posted: June 3, 2026, 6:37 pm