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 IRS said the voluntary phone survey will take about 20 minutes and will cover topics including e-filing, due diligence requirements, data security, and electronic document submission.
Posted: November 27, 2023, 8:09 pm
The final Accounting Standards Update, required for annual periods beginning after Dec. 15, 2023, is designed to “improve financial reporting by providing additional information about a public company’s significant segment expenses” in a timely manner.
Posted: November 27, 2023, 8:03 pm
Intangible assets and climate-related reporting are among action items that the board, which is responsible for setting standards for federal government entities, will address in the coming years.
Posted: November 22, 2023, 1:51 pm