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

IRS Commissioner Danny Werfel said Thursday that the effort will begin with compliance letters going out to high-income taxpayers in 125,000 cases where third-party information indicated federal tax returns have not been filed since 2017.
Posted: February 29, 2024, 9:54 pm
The National Pipeline Advisory Group pipeline surveys, intended to shape profession-wide efforts to tackle the accounting talent shortage, went live on Thursday.
Posted: February 29, 2024, 9:00 pm
Emerging technology can help the finance function eliminate errors, but effective execution may hinge on companies cultivating a high level of acceptance among users.
Posted: February 29, 2024, 7:43 pm