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

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.

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.

Tax, accounting, auditing news - Journal of Accountancy

FASB published a proposed Accounting Standards Update to improve investment company financial reporting by amending how investment companies measure the fair value of an equity security that is subject to a contractual sale restriction.
Author: By Kevin Brewer
Posted: July 2, 2026, 2:39 pm
The request follows reports from taxpayers who said they received notices despite not expecting a refund or having already provided direct deposit information.
Author: By Martha Waggoner
Posted: June 30, 2026, 8:29 pm
The guidance sets forth conditions for contributions to qualify for the annual gift tax exclusion and for donors to avoid filing gift tax returns.
Author: By Martha Waggoner
Posted: June 29, 2026, 8:17 pm