Johnson O'Connor

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Johnson O'Connor Founded in 1945, JO has grown into a preeminent accounting and consulting firm in Greater Boston.

Founded in 1945, Johnson O’Connor has grown to become one of the preeminent certified public accounting firms and business consultants in the Greater Boston area. We are proud to be ranked as a “Top 50 Accounting Firm” by the Boston Business Journal. Johnson O’Connor provides a comprehensive range of tax services, assurance services, merger and acquisition strategies, business consulting, and financial planning. Our clients range from middle market, entrepreneurial and family-owned businesses to medium-sized companies in a diverse range of industries. We also provide third-party administration for many of our clients’ qualified retirement plans. With outstanding industry insight and a fully independent point of view, we will help you develop a clear course of action to achieve your personal and professional goals. The personal touch never goes out of style at Johnson O’Connor. If you’re looking for more than business as usual from an accounting firm, meet with us and experience the difference.

Latest Insight | Quality of Earnings vs. Financial Statement Audit: Understanding the DifferenceWhile a financial statem...
10/20/2026

Latest Insight | Quality of Earnings vs. Financial Statement Audit: Understanding the Difference

While a financial statement audit focuses on historical financial accuracy, a Quality of Earnings (QoE) analysis evaluates the sustainability of earnings and potential risks to help buyers and sellers make informed transaction decisions.

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Business owners often assume a financial statement audit and a Quality of Earnings (QoE) analysis provide the same level of insight. While both involve a review of financial information, they serve very different purposes. A financial statement audit is designed to determine whether historical finan...

Latest Insight | Trusts & Estates Tax Planning: A Collaborative ApproachEffective trust and estate planning goes beyond ...
10/08/2026

Latest Insight | Trusts & Estates Tax Planning: A Collaborative Approach

Effective trust and estate planning goes beyond tax compliance. Johnson O’Connor’s Trusts & Estates Tax Team helps clients and their advisors navigate tax considerations, gifting strategies, and evolving planning needs.

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Trust and estate planning often involves tax considerations that extend well beyond the preparation of a return. Understanding those implications throughout the planning and administration process can help avoid unintended consequences and support a client’s broader financial and estate planning g...

Latest Insight | Receiving Equity Compensation? Plan Ahead for TaxesStock-based compensation can come with complex tax i...
09/30/2026

Latest Insight | Receiving Equity Compensation? Plan Ahead for Taxes

Stock-based compensation can come with complex tax implications, and the timing of when you exercise, vest, or sell can make a meaningful difference. Our latest insight breaks down the tax treatment and key planning considerations for RSUs, ISOs, and NSOs.

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Stock-based compensation has become increasingly common as companies compete to attract and retain talent. Whether you’ve received Restricted Stock Units (RSUs), Incentive Stock Options (ISOs), or Nonqualified Stock Options (NSOs), understanding how each is taxed can help you avoid surprises and i...

Ready to take the next step after graduation? Meet our team at an upcoming career fair and learn how you can start your ...
09/09/2026

Ready to take the next step after graduation? Meet our team at an upcoming career fair and learn how you can start your career as an Entry-Level Staff Accountant at JO. We look forward to meeting you! See our open positions here: https://www.johnsonoconnor.com/careers/open-positions/

🎓 Class of 2027 — your accounting career starts here. At Johnson O'Connor, you'll gain hands-on experience, work direct...
08/26/2026

🎓 Class of 2027 — your accounting career starts here.

At Johnson O'Connor, you'll gain hands-on experience, work directly with experienced professionals, and build meaningful client relationships from day one. We're looking for Entry-Level Staff Accountants who are ready to learn, grow, and make an impact. If you're graduating in December 2026 or May 2027, we'd love to connect.

Learn more about the position and apply here: https://www.johnsonoconnor.com/open-position/entry-level-staff-accountant/

Address

101 Edgewater Drive, Ste 210
Wakefield, MA
01880

Telephone

(781) 914-3400

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