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

Uncredentialed tax preparer errors included fictitious deductions, review shows
A report from the Center for Taxpayer Rights comes as Congress considers giving the IRS more oversight of the industry.
Author: By Martha Waggoner
Posted: April 13, 2026, 7:44 pm
IRS finalizes deduction rules for tips, adds 3 eligible jobs
The final IRS regulations expand the tips deduction to 71 occupations and clarify rules on qualified tips, digital payments, and automatic gratuities.
Author: By Martha Waggoner
Posted: April 13, 2026, 7:07 pm
GASB proposes guidance on infrastructure assets
GASB issued guidance Wednesday that seeks to improve the financial reporting requirements for infrastructure assets, enhancing the consistency in their application and better meeting the information needs of financial statement users.
Author: By Kevin Brewer
Posted: April 9, 2026, 7:30 pm