Senior Tax Accountant
Collegium Pharmaceutical ‚Ä¢ Stoughton, Massachusetts ‚Ä¢ Full Time ‚Ä¢ $101,000–$120,080 / year
Posted on Wed, Jul 22, 2026
Collegium Pharmaceutical is building a leading, diversified biopharmaceutical company committed to improving the lives of people living with serious medical conditions. We have a leading portfolio of responsible pain management and neuropsychiatry medications.
Hybrid: Required to be onsite in Stoughton, MA on Tuesday, Wednesday and Thursday.
POSITION OVERVIEW
Collegium is adding a Senior Tax Accountant to the Tax Team. As one of the Company’s first dedicated tax hires, this individual will assist the Tax Director in establishing the foundation of our internal tax processes, while working in close partnership with a strong Finance Team and a network of experienced advisors. The Senior Tax Accountant will also contribute to the implementation and maintenance of scalable tax processes and will play a key role in providing support to the business. This role is a unique opportunity to deepen your expertise in tax at a growing company, while collaborating cross-functionally to establish the Tax Team’s role across the organization.
RESPONSIBILITIES
- Assist with the coordination, preparation and review of the tax provision, including preparing supporting documentation, analysis of uncertain tax positions, tax account reconciliations, and journal entries.
- Maintain tax-related internal controls and documentation in support of SOX requirements.
- Collaborate with external financial statement auditors, providing necessary documentation and explanations to support the audit process.
- Assist with the coordination, calculation and filing of federal, state and foreign tax returns, extensions and quarterly estimated tax payments.
- Prepare responses to inquiries from tax authorities (e.g., notices and audits).
- Demonstrate a working knowledge of tax law, including the ability to perform tax research and to prepare technical memorandums, as required.
- Develop good relationships with colleagues from other functions including Accounting, FP&A, Legal, HR, IT, R&D, Operations, Sales and Marketing.
- Communicate clearly with explanations and clarifying questions.
- Implement continuous improvements and solve routine problems.
- Other tasks or special projects as requested.
REQUIRED LEADERSHIP BEHAVIORS
At Collegium, how we achieve results is just as important as what we achieve. Our Leadership Behaviors define how we work, collaborate, and succeed as we continue to evolve as an organization.
We group these behaviors into three pillars:
- HEAD
- Think Entrepreneurially
- Take Decisive Action
- Drive Results
- HEART
- Communicate Effectively
- Enable High Performance
- Collaborate with Purpose
- GUTS
- Take Smart Risks
- Be Tenacious About Change
- Compete to Win
Successful candidates will demonstrate these behaviors through their ability to challenge the status quo, build strong relationships, drive results, embrace change, and contribute to a high-performance culture.
QUALIFICATIONS
- Bachelor’s degree in accounting required, CPA preferred.
- 3+ years of related experience required, Big 4 public accounting experience or experience working in a corporate tax function preferred.
- Strong understanding of ASC 740 as it relates to multinational corporations.
- Experience working at/with pharmaceutical/biotech companies preferred.
- Experience effectively managing multiple priorities simultaneously and performing within deadlines.
- Working knowledge of modern tax software and experience in leveraging technology to create more efficient tax processes.
- Hands-on experience using Microsoft Excel at an advanced level.
Pay Range
$101,000 - $120,080 USD
Collegium is an equal opportunity employer. It is the policy of Collegium, in all of its relations with its employees and applicants for employment, to base all employment-related decisions upon valid job-related factors, without regard to age, national origin, citizenship status, ancestry, race, color, religion, creed, sex or gender (including pregnancy, childbirth and related medical conditions), gender identity or expression (including transgender status), sexual orientation, military or veteran status, physical or mental disability, genetic information, or any other status protected by applicable federal, state, or local law. This policy applies to hiring, training, promotion, compensation, disciplinary measures, access to facilities and programs, and all other personnel actions and conditions of employment. By this policy, Collegium seeks to ensure that all employees have the opportunity to make their maximum contribution to Collegium and to their own career goals. This policy provides for an equal employment opportunity program that will simultaneously serve the requirements of society, the law, sound business practices and individual dignity.
If you have questions or concerns about equal employment opportunities in the workplace, you are encouraged to bring these issues to the attention of the Head of Human Resources. We will not allow any form of retaliation against employees who raise issues of equal employment opportunity. To ensure our workplace is free of artificial barriers, violation of this policy may result in disciplinary action, up to and including termination.
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