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

A survey of U.S. finance decision-makers sheds light on the precautions businesses are taking and how they plan to address future office space needs.
Posted: September 24, 2020, 11:00 am
The SEC voted to amend rules that govern its whistleblower program and the amount a shareholder must hold to have a proposal included in a company’s proxy statement.
Posted: September 23, 2020, 8:32 pm
The forgiveness aspect of the Paycheck Protection Program remains a source of uncertainty for CPAs. This collection of facts and frequently asked questions can help CPAs understand what to do amid the confusion.
Posted: September 23, 2020, 8:15 pm