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

Final regs. issued for Sec. 3406 backup withholding rules
Final IRS regulations reflect changes made by the OBBBA to rules governing backup withholding on third-party network transactions under Sec. 3406.
Author: By Martha Waggoner
Posted: August 10, 2026, 8:22 pm
4 Social Security rules that surprise clients — and some advisers
A divorced spouse may qualify for benefits based on their ex’s work record. A surviving spouse may qualify before age 62. And some families may be eligible for benefits related to their children.
Author: By Bryan Strickland
Posted: August 10, 2026, 7:59 pm
IRS updates overtime deduction FAQs, adds reporting details
Workers generally may claim the overtime pay deduction only for amounts reported on Form W-2, Wage and Tax Statement, beginning in tax year 2026, according to updated IRS FAQs. The IRS also clarified that the deduction does not make overtime pay exempt from gross income.
Author: By Martha Waggoner
Posted: August 10, 2026, 5:49 pm