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.

Read more →

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.

Read more →

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.

Read more →

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.

Read more →

Tax, accounting, auditing news - Journal of Accountancy

IRS stops billions in identity theft refunds but needs data earlier, report says
A report from the Treasury Inspector General for Tax Administration found that delayed 1099-R and W-2G filings limit the IRS’s ability to spot refund fraud early.
Author: By Martha Waggoner
Posted: May 21, 2026, 5:35 pm
Jan Lewis elected AICPA chair
The tax partner at BMSS Advisors is elected to the one-year volunteer post at AICPA spring Council, succeeding Lexy Kessler. Lindsay Stevenson is elected vice chair.
Author: By Bryan Strickland
Posted: May 20, 2026, 10:05 pm
AICPA supports bills to limit BOI reporting to foreign-owned entities
The AICPA said the changes would ease the compliance load on CPAs who help small businesses navigate federal reporting rules.
Author: By Martha Waggoner
Posted: May 20, 2026, 6:29 pm