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 issues higher 2026 depreciation limits for passenger automobiles
The IRS issued the 2026 depreciation limitations for passenger vehicles, including those for which bonus depreciation is applied.
Author: By Martha Waggoner
Posted: March 4, 2026, 12:49 pm
New Schedule 1-A for tips, OT, car loans, and senior deductions published
The Schedule 1-A does not differ from the draft version issued last year, but instructions for Form 1040 provide details and examples on the four temporary deductions.
Author: By Martha Waggoner
Posted: March 2, 2026, 9:45 pm
GASB proposes guidance for financial reporting model improvements
The board is accepting comments through April 27 on proposed authoritative guidance related to subsidies in Statement No. 103, Financial Reporting Model Improvements.
Author: By Bryan Strickland
Posted: March 2, 2026, 5:32 pm