Senior Tax Manager - JSP Accountants

About the Firm

JSP Accountants is a longstanding tax and financial advisory firm based in West Linn, Oregon, providing comprehensive services to businesses, individuals, trusts, and estates. The firm has served its clients for many years, building a strong and respected reputation within the community.

JSP Accountants joined Archer Lewis as part of the organization’s expanding national network, becoming one of several established regional firms integrated into the Archer Lewis alternative practice structure. Through this partnership, JSP Accountants continues to deliver its signature, relationship-driven and client-focused service while gaining access to enhanced national resources, advanced tools, and expanded operational support across the Archer Lewis network.

As a Senior Tax Manager, you will play a key leadership role responsible for directing all facets of the tax function, including compliance, reporting, planning, and strategic guidance. You will lead complex client engagements and oversee comprehensive tax operations to ensure technical excellence and deliver high-value advisory services. In this role you will drive business growth by strengthening client relationships, optimizing tax strategies, and providing expert leadership to a diverse team of tax professionals while serving as a trusted advisor to C‑suite executives and high‑impact clients.

• Provide strategic direction for the tax function or practice area, ensuring alignment with broader organizational goals.
• Lead, mentor, and develop a high-performing team of tax professionals, including Senior Tax Associates and staff, with oversight of performance management, resource planning, and talent retention.
• Foster a collaborative, growth-oriented environment that prioritizes technical excellence and continuous professional development.

• Serve as a final reviewer and subject matter expert for highly complex federal, state, local, and international tax filings across corporate, partnership, and individual entities.
• Ensure compliance with applicable tax regulations, GAAP/IFRS standards, and internal control requirements.
• Stay current on evolving tax laws and regulatory changes, providing guidance to ensure accurate application across engagements.

• Develop and implement advanced tax strategies designed to minimize liabilities and enhance overall tax efficiency.
• Provide high-level advisory services on complex transactions, restructurings, regulatory changes, and key business initiatives.
• Partner with senior leadership and clients to deliver insights that inform strategic decision-making.

• Lead federal and state tax audits, serving as the primary liaison with taxing authorities, including the IRS and state agencies.
• Defend tax positions, negotiate resolutions, and guide stakeholders through audit and controversy processes.

• Identify and pursue new business opportunities within the tax practice.
• Lead proposal development, client presentations, and efforts to expand existing relationships.
• Strengthen the firm’s market presence by building trust and demonstrating deep technical expertise with prospective and current clients.

• Oversee quarterly and annual tax provision processes in accordance with ASC 740.
• Ensure accurate reporting, documentation, and disclosure of income taxes within financial statements.
• Collaborate cross-functionally with finance and accounting teams to support audit requirements and close financial timelines.

• Bachelor’s degree in Accounting, Finance, or a related field required.
• Certified Public Accountant (CPA) license required.
• Master’s degree in Taxation (MTax) or related field preferred.

• 7–10+ years of progressive tax experience, including leadership or management responsibilities.
• Prior experience in public accounting or within the tax function of a multinational organization strongly preferred.
• Demonstrated expertise in business tax and accounting across multiple entity types, including S corporations, partnerships, and C…