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.

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.

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.

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.

Tax, accounting, auditing news - Journal of Accountancy

Schellman’s investment from Goldman Sachs, a transaction expected to close in the second quarter of this year, comes after its initial private-equity deal with Lightyear Capital in 2021.
Author: By Bryan Strickland
Posted: March 9, 2026, 6:47 pm
Proposed regulations under Sec. 530A provide information on how to open initial Trump accounts, and proposed regulations under Sec. 6434 provide guidance on the program that provides $1,000 contributions to Trump accounts for eligible children.
Author: By Martha Waggoner
Posted: March 9, 2026, 4:27 pm
If proposed regulations become final, the withdrawal would let taxpayers treat the January 2025 transaction-of-interest regulations as having never taken effect.
Author: By Martha Waggoner
Posted: March 6, 2026, 9:57 pm