NewMarket Services

Senior Tax Supervisor

Location UK-Bracknell


Senior Tax Supervisor will support NewMarket Corporation’s global tax function, focusing on EMEAI regional tax matters, by providing NewMarket and Afton personnel with solid interpretation of applicable direct and indirect tax laws and rules as necessary. Senior Tax Supervisor will also be responsible for direct tax compliance and tax accounting in the UK and will have involvement in tax compliance and tax accounting matters in the EMEAI region.


1. Preparation and/or review of UK Corporation Tax Returns, including review quarterly estimated tax payments and Research and Development tax credit. Preparation of other UK filings as needed.

2. Accounting for tax matters under U.S. GAAP, preparation of quarterly and annual information for the U.S. parent company, and support the preparation of statutory financial statement.

3. Review the quarterly tax provisions for the EMEAI region and have oversight over the tax and transfer pricing work being completed by EMEAI controller’s group colleagues.

4. Supervise and develop UK tax accountant on UK tax matters. Consult on and review EMEAI tax matters with EMEAI controllers.
5. Support business initiatives through researching and analysing various tax issues, while seeking opportunities to maximize shareholder value, reduce risk, and reduce tax liability.
6. Identify opportunities to simplify non-value-added processes to increase capacity, including increased automation of work papers to speed tax compliance and close process and increased use of SAP functionality.
7. Consult with various external financial statement and tax auditors, as needed, and provide accurate and timely responses to inquiries.
8. Maintain up-to-date knowledge of tax law changes and company changes in the EMEAI region. Provide expert tax assistance to internal customers as needed.
9. Perform all job responsibilities in compliance with Sarbanes-Oxley and Senior Accounting Officer controls; review and update controls at least annually.

10. Monitor requirements of the OECD’s Base Erosion Profit-Shifting project and resulting or related legislation, including the Mandatory Disclosure Regime, local transfer pricing disclosures, Diverted Profits Tax, Global Minimum Tax, and disclosure of tax strategy.

11. Educate colleagues on Criminal Finances Act of 2017 on an annual basis and document compliance with the Act, as required.




  • University degree
  • Corporate tax experience required
  • Proficiency in direct tax
  • Understanding of tax accounting laws and the application of those laws in a business environment




  • Qualified ACA/ACCA (CTA qualified is a plus)




  • Demonstrates in-depth knowledge VAT regulations
  • Working knowledge of Alphatax or other tax return preparation software
  • Strong ERP experience (preferably SAP)
  • Excellent inter-personal skills, able to effectively communicate across all levels of the organisation including at the executive level
  • Demonstrates initiative and the ability to work independently with limited supervision
  • Ability to function effectively in a team environment.
  • Able to handle multiple tasks and projects concurrently
  • Able to plan, prioritise and organise efforts to meet required deadlines.
  • Demonstrates high level of responsibility
  • Able to work overtime as needed
  • Able to travel as required to other Afton locations within the EMEAI region and the US for projects and training as required.
  • Supervisory experience


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