Sr. Tax Accountant

About the role

We are looking for an experienced Sr. Tax Accountant to join a team in Waltham, Massachusetts on a Contract basis. This role is suited for a tax specialist with a strong background in preparing complex individual and business returns, along with broad exposure to sales and use tax matters. The position offers an excellent opportunity for someone who wants to expand their expertise, contribute to high-level tax work, and build toward future leadership responsibilities.

Responsibilities

• Prepare and review complex individual tax filings with a high degree of accuracy and attention to changing regulations.
• Complete corporate tax returns and supporting schedules while ensuring compliance with applicable federal, state, and local requirements.
• Manage sales and use tax reporting activities, including research, preparation, and timely submission of required filings.
• Analyze financial records and source documentation to identify tax issues, resolve discrepancies, and support accurate return preparation.
• Use tax software, including ProSystem fx when applicable, to organize data, prepare returns, and maintain efficient workflow management.
• Communicate with internal stakeholders and external contacts to gather tax information, clarify outstanding items, and keep filings on track.
• Research tax rules and interpret guidance to support compliance decisions and address client- or business-specific questions.
• Contribute to process improvements within the tax function and support work that strengthens readiness for broader managerial responsibilities.

Qualifications

• At least 5 years of tax accounting experience with strong attention to detail.
• Demonstrated experience preparing individual and corporate tax returns.
• Working knowledge of sales tax and sales and use tax compliance requirements.
• Strong tax preparation skills with the ability to manage detailed filings accurately and efficiently.
• Experience using ProSystem fx is preferred, though not required.
• Ability to interpret tax regulations, research issues, and apply findings to practical situations.
• Strong organizational skills and the ability to manage multiple deadlines in a contract environment.

Benefits

• Medical, vision, dental, and life and disability insurance
• Company 401(k) plan