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 Top Issues Survey: Firms’ focus on technology rises
Larger firms participating in the biennial Private Companies Practice Section survey also are grappling with people-related issues, and smaller firms highlighted regulatory and data security concerns.
Author: By Bryan Strickland
Posted: June 23, 2026, 8:31 pm
Advisory panel urges sustained IRS funding, expanded AI, tax simplification
The Electronic Tax Administration Advisory Committee calls for predictable, multiyear funding; expanded use of artificial intelligence with safeguards; and steps to reduce complexity and improve communication with taxpayers and practitioners.
Author: By Martha Waggoner
Posted: June 18, 2026, 6:52 pm
FASB seeks comment on hedge accounting guidance
FASB published two Accounting Standards Updates recently. One is intended to improve accounting guidance for interest rate risk hedging and net investment hedging, and the other relates to guidance for certain market-return cash balance plans.
Author: By Kevin Brewer
Posted: June 17, 2026, 7:10 pm