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  3. Tax Assistant Manager
Octopus Energy logo

Tax Assistant Manager

Octopus Energy
London (GB), United Kingdom
Full Time
Posted May 27, 2026
Energy Management
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Job Description

Octopus Energy Generation is a specialist energy investment manager, overseeing more than £7 billion of assets under management.

Key Responsibilities

• Support the management of tax matters across OEGen funds and associated holding structures. • Coordinate international tax compliance processes with local advisors across multiple jurisdictions. • Assist with tax reporting, tax provisioning, and financial statement disclosures. • Support tax workstreams on acquisitions, restructurings, refinancings, and other transactions. • Review transaction and financing documentation from a tax perspective, with support from senior team members where needed. • Monitor tax risks and support ongoing governance and compliance processes. • Work closely with investment, finance, legal, and external advisory teams across the business. • Contribute to the continuous improvement of internal tax processes and documentation.

Requirements

• Around 4–5 years’ experience in corporate tax. • CTA, ACA, or equivalent qualification (or close to qualification). • Experience gained in a Big 4 firm, international advisory firm, law firm, or in-house tax team. • Good grounding in tax compliance, reporting, and tax accounting. • Exposure to cross-border structures or international tax matters is helpful, but deep expertise is not expected. • An interest in infrastructure, energy, or investment management is a plus. • Foreign language skills (particularly German, French, Spanish, or Italian) would be beneficial but are not required. • Most importantly, we are looking for someone with strong reasoning skills, good commercial awareness, and a willingness to learn. This role would suit someone looking to grow into a broader international tax management role over time, working closely with experienced senior stakeholders in a supportive and collaborative environment.

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