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 offers extension option for taxpayers facing ERC claim deadlines
Taxpayers meeting eligibility rules can now use Form 907 to preserve their right to challenge ERC disallowances while the IRS continues its review.
Author: By Martha Waggoner
Posted: April 28, 2026, 8:17 pm
CPA tips for building an emergency fund when savings fall short
Most Americans don’t have adequate emergency savings, according to a survey conducted for National Financial Literacy Month. The AICPA offers four tips from CPAs to help remedy the shortfall.
Author: By Bryan Strickland
Posted: April 28, 2026, 6:50 pm
House panel backs repeal of BOI reporting by domestic companies
The House Financial Services Committee voted to remove domestic-owned companies from the beneficial ownership information reporting requirements of the Corporate Transparency Act.
Author: By Martha Waggoner
Posted: April 27, 2026, 8:49 pm