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Senior Tax Manager

SeaHill Consulting Group
Portland, OR Full Time
POSTED ON 12/10/2025 CLOSED ON 12/18/2025

What are the responsibilities and job description for the Senior Tax Manager position at SeaHill Consulting Group?

Key Responsibilities

  • Lead and manage the review of complex business tax returns, including Forms 1120, 1120S, 1065, and select high-net-worth 1040s, ensuring accuracy, compliance, and timely delivery.
  • Oversee tax provisions, consolidated returns, multi-state filings, and ASC 740 reporting requirements.
  • Provide technical guidance on partnership basis adjustments and complex tax matters, including reorganizations, mergers, liquidating distributions, and corporate issues involving Sections 382/383 and E&P.
  • Conduct tax due diligence for buy-side and sell-side M&A transactions, identifying risks and opportunities.
  • Manage and strengthen long-term client relationships through proactive communication, issue resolution, and strategic tax planning support.
  • Supervise and mentor project teams, providing constructive feedback and fostering a collaborative, knowledge-sharing environment.
  • Ensure engagement profitability through effective project oversight, workflow management, and monitoring accounts receivable.
  • Maintain compliance with regulatory changes and industry standards while promoting adoption of new technology and process improvements.


Day-to-Day Responsibilities

  • Review business, consolidated, and multi-state tax returns prepared by staff, ensuring accuracy and compliance with federal and state regulations.
  • Research and resolve complex tax issues, documenting findings and advising both internal teams and clients.
  • Oversee daily team workflow, providing direction, reviewing work products, and ensuring milestones and deadlines are met.
  • Support clients with ongoing tax planning, projections, and responses to tax authority inquiries.
  • Lead discussions with clients to clarify deliverables, address concerns, and identify additional areas where tax guidance may be needed.
  • Review ASC 740 calculations and supporting workpapers.
  • Perform due diligence procedures for active M&A engagements and prepare written findings for client review.
  • Coordinate with internal accounting, audit, and advisory teams to ensure alignment on client objectives and deliverables.
  • Utilize tax software platforms (preferably CCH Axcess & Engagement) and MS Office applications to manage workflow in a fully paperless environment.
  • Monitor engagement budgets, track progress against timelines, and support timely collection of accounts receivable.


Preferred Experience & Attributes

  • Active CPA license required.
  • Minimum of 7 years of recent public accounting experience, including at least 1 year in a Senior Manager capacity.
  • Proven experience reviewing—not just preparing—complex business returns, consolidated filings, multi-state returns, ASC 740 requirements, and partnership basis adjustments.
  • Experience conducting both buy-side and sell-side tax due diligence; thorough understanding of taxable and nontaxable transactions, reorganizations, mergers, Sections 382/383, E&P, and liquidating distributions.
  • Familiarity with foreign reporting forms (5471, 5472, 8865, FBAR, 1042) is preferred.
  • Strong communication skills with the ability to give and receive clear, constructive feedback.
  • Highly organized, detail-oriented, and capable of solving complex problems with sound judgment.
  • Team-oriented, collaborative, and committed to knowledge-sharing and continuous learning.
  • Embraces technology, adapts quickly to change, and is proficient with MS Office and tax preparation platforms (CCH strongly preferred).

Salary : $160,000 - $190,000

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