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.


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.

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.


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.

Journal Of Accountancy News

Latest News from Journal Of Accountancy

In light of the continuing challenges taxpayers are facing with the corporate alternative minimum tax, the IRS granted a waiver of the addition to tax for failure to pay estimated corporate AMT “in the interest of sound tax administration.”
Posted: April 18, 2024, 9:23 pm
Proposed regulations could challenge small RIAs in particular to maintain compliance, according to an AICPA comment letter. The letter recommends that FinCEN reconsider how it determines who must report.
Posted: April 18, 2024, 7:39 pm
IRS commissioner Danny Werfel told the Senate Finance Committee that a tax bill passed by the House in January would help the IRS combat fraud in employee retention credit claims.
Posted: April 18, 2024, 11:25 am