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

Taxpayers can now access IRS compliance report online
A new IRS Individual Online Account feature lets taxpayers download a digitally authenticated compliance report for use when applying for jobs, loans, government benefits, and other services.
Author: By Martha Waggoner
Posted: August 24, 2026, 8:48 pm
AICPA supports disaster tax bill, presses for permanent relief
The bill, which awaits the president’s signature, would make disaster tax relief rules easier to find and more predictable by adding them to the Internal Revenue Code, a change the AICPA says should be made permanent.
Author: By Martha Waggoner
Posted: August 24, 2026, 5:44 pm
Proposed rules would restrict Trump account eligible investments
The IRS proposed regulations that would limit Trump account investments to low-fee stock index funds and ETFs during the growth period.
Author: By Martha Waggoner
Posted: August 20, 2026, 8:53 pm