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.

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Tax

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.

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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.

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Individuals

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.

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Tax, accounting, auditing news - Journal of Accountancy

GASB proposes guidance on infrastructure assets
GASB issued guidance Wednesday that seeks to improve the financial reporting requirements for infrastructure assets, enhancing the consistency in their application and better meeting the information needs of financial statement users.
Author: By Kevin Brewer
Posted: April 9, 2026, 7:30 pm
FASAB announces new chair, new board structure
Terry K. Patton, CPA, takes over the leadership position on the Federal Accounting Standards Advisory Board; FASAB appoints two new board members while reducing board membership from nine to seven.
Author: By Bryan Strickland
Posted: April 8, 2026, 7:34 pm
Executive turnover slows, but AI strategy remains unclear
A global survey reveals that executives aren’t changing jobs nearly as often as they did a year ago, but many are seeking better internal support for strategic objectives built around artificial intelligence.
Author: By Bryan Strickland
Posted: April 7, 2026, 4:20 pm