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

Social Security wage base and COLA announced for 2027
The Social Security Administration announced a 3.6% cost-of-living adjustment for 2027 and increased the Social Security wage base to $192,300. The annual update also includes changes to retirement earnings limits and other indexed Social Security amounts that affect taxpayers and employers.
Author: By Martha Waggoner
Posted: October 14, 2026, 5:59 pm
AICPA recommends IRS clarification of Form 8050
The AICPA asked the IRS to clarify that Form 8050, used to provide direct deposit information for tax refunds, will not be included in exempt organizations' publicly available tax return filings. An AICPA letter said the change would reduce the risk of inadvertently disclosing sensitive banking information.
Author: By Martha Waggoner
Posted: October 13, 2026, 4:02 pm
AI and the audit: AICPA publishes practice aid to assist auditors
A new practice aid covers the impact of organizations’ use of artificial intelligence in financial reporting and the impact of audit firms’ use of AI in audit engagements.
Author: By Bryan Strickland
Posted: October 13, 2026, 11:52 am