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

GASB seeks feedback on idea of changing how it communicates GAAP
Based on stakeholder input, requested by the end of August, GASB may consider simplifying the structure it uses to communicate GAAP for state and local governments.
Author: By Bryan Strickland
Posted: April 16, 2026, 8:31 pm
Experts answer burning questions about personal financial security
The AICPA and Finseca answer questions about retirement, taxes, and long-term wealth strategies as a part of National Financial Literacy Month.
Author: By Bryan Strickland
Posted: April 15, 2026, 7:23 pm
IRS flagged FATCA noncompliance but followed up with few exams, penalties
TIGTA found the IRS spent hundreds of millions on FATCA oversight while examining only a handful of high-value foreign account cases.
Author: By Martha Waggoner
Posted: April 15, 2026, 4:13 pm