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

Inflation adjustments to retirement account limits issued for 2027
The IRS announced inflation-adjusted limits on benefits and contributions for various retirement accounts, including maximum contribution amounts for 401(k) plans and traditional and Roth IRAs.
Author: By Martha Waggoner
Posted: November 12, 2026, 8:24 pm
AICPA seeks guidance on measuring gambling gains, losses
The AICPA urged Treasury and the IRS to provide guidance on measuring, substantiating, and reporting gambling gains and losses, saying uncertainty can cause some taxpayers to report taxable income exceeding their actual economic gain.
Author: By Martha Waggoner
Posted: November 12, 2026, 7:25 pm
2027 CFO forecast: Mergers and acquisitions on the rise
Half of CFOs and senior finance leaders believe their companies will pursue a merger or acquisition next year, according to global research by Gartner.
Author: By Bryan Strickland
Posted: November 11, 2026, 7:04 pm