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 seeks IRS clarity on AI guidelines, CPA fees
The AICPA is seeking clarification from the IRS on guidelines suggesting that tax practitioners should pass AI-related cost savings on to clients. Concerns about language in the guidelines include the implication of not allowing for a value-pricing model and overlooking the costs of implementing and governing the technology.
Author: By Martha Waggoner
Posted: September 8, 2026, 8:38 pm
CFO hires increasing; average age of hires decreasing
At the midpoint of 2026, the average age of CFO hires at large companies stood at 48.2 years old, the youngest average age in at least a decade.
Author: By Bryan Strickland
Posted: September 3, 2026, 6:45 pm
Congress approves funding bill that maintains IRS budget
A stopgap funding bill headed to the president would maintain the IRS’s $11.2 billion annual budget through Dec. 11 and prevent a second $11.6 billion funding rescission for now.
Author: By Martha Waggoner
Posted: September 3, 2026, 11:38 am