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

IRS appeals Kwong as advocate says refunds may be at stake
The IRS filed an appeal of the Court of Federal Claims’ Kwong decision, in which the court held that the filing deadline for refund claims for penalties and interest was automatically extended by Sec. 7508A(d) due to the COVID-19 disaster declaration.
Author: By Martha Waggoner
Posted: May 29, 2026, 8:11 pm
SEC proposes recission of climate disclosure rules
The proposal is the next formal step in the commission’s move away from historic rules it adopted in 2024.
Author: By Bryan Strickland
Posted: May 29, 2026, 4:39 pm
PCAOB works to form Inspections Modernization Council
The board is accepting applications through June 15 to help “modernize PCAOB inspections so they remain relevant and resilient.”
Author: By Bryan Strickland
Posted: May 29, 2026, 3:35 pm