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

AICPA members to vote on two proposed bylaw amendments this fall
Voting will open later this fall on amendments addressing AICPA volunteer term dates and AICPA membership eligibility requirements.
Author: By Bryan Strickland
Posted: September 14, 2026, 6:15 pm
FASB updates investment company fair value reporting standard
The amendments address stakeholder concerns that current GAAP guidance doesn’t consider a contractual restriction on the sale of an equity security when measuring the fair value of that security.
Author: By Bryan Strickland
Posted: September 10, 2026, 7:26 pm
PCAOB finalizes simplified quality control amendments
QC 1000, A Firm’s System of Quality Control, will be effective Dec. 15 and could serve as the basis for the PCAOB’s future approach to inspections of public company compliance.
Author: By Bryan Strickland
Posted: September 9, 2026, 7:44 pm