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

Adequate identification relief extended through 2026
The relief allows taxpayers to use alternative methods to make adequate identification of digital asset units that are sold, disposed of, or transferred during the relief period.
Author: By Kevin Brewer
Posted: March 18, 2026, 8:50 pm
Private Company Council issues annual report
The report highlights the activities of the group charged with working with FASB to improve the process of setting accounting standards for private companies.
Author: By Bryan Strickland
Posted: March 16, 2026, 8:02 pm
PEEC proposes revised definition of ‘attest engagement team’
The AICPA Professional Ethics Executive Committee seeks comment on a revised definition to gather input on whether the definition appropriately reflects the roles that should be excluded from an attest engagement team. The comment deadline is June 1.
Author: By Kelly D. Mullins
Posted: March 16, 2026, 12:30 pm