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

“Ghost preparers” tied to $179 million in potentially fraudulent refunds
A TIGTA report linked ghost preparers to $179 million in refund claims over two years. Its findings come as legislators consider the Taxpayer Assistance and Service Act, which would expand IRS oversight of paid tax return preparers.
Author: By Martha Waggoner
Posted: October 23, 2026, 8:10 pm
PCAOB’s latest data reveals cleaner inspection findings
The board’s review of 2025 public company audit inspections revealed a significant decrease from 2024 in instances where an audit firm failed to obtain sufficient appropriate evidence to support its opinion on a financial statement.
Author: By Bryan Strickland
Posted: October 23, 2026, 3:58 pm
AICPA: Trump account regulations make 2026 rollout difficult
Proposed regulations governing employer contributions to Trump accounts are “administratively burdensome” and make a 2026 rollout potentially difficult, the AICPA said. A letter to the IRS and Treasury asked for employers to be given more time and for the programs to be easier to administer.
Author: By Martha Waggoner
Posted: October 23, 2026, 11:57 am