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

Practitioners will be able to perform a new engagement known as a direct examination for clients under a new standard published by the AICPA Auditing Standards Board (ASB).
Posted: September 30, 2020, 7:42 pm
The IRS issued final and proposed regulations covering a wide variety of issues involving deductions and credits for foreign taxes.
Posted: September 30, 2020, 6:11 pm
Boards were meeting more regularly, more virtually, and getting more into the details on topics previously addressed only at a high level.
Posted: September 30, 2020, 5:05 pm