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

The fast-moving, global reach of the coronavirus has illustrated that a forward-looking approach to risk management is more important than ever.
Posted: April 1, 2020, 11:01 am
Small businesses and sole proprietorships hoping to secure a loan through the federal Paycheck Protection Program can begin applying Friday, April 3.
Posted: March 31, 2020, 11:30 pm
The National Association of State Boards of Accountancy announced a new model that will enhance candidates’ options for taking the CPA Exam beginning July 1.
Posted: March 31, 2020, 9:26 pm