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Costs Administration Assistant

Posted February 11, 2026
Full Time £24,129 / year

Job Overview

Join our team as a Costs Administration Assistant and become an integral part of our dynamic environment. As a key member of our Costs Team, you'll play a crucial role in ensuring the smooth operation of administrative tasks and supporting the overall efficiency of our office.

Key Responsibilities

  • Perform data input and retrieval operations using Thompsons’ computer system.
  • Carry out clerical, administrative, and IT support tasks such as case opening and closing, photocopying, filing, and post handling.
  • Assist and cover for other members of the Costs Team as required, under the guidance of the Costs Team manager.
  • Organise incoming and outgoing mail and DX, including sorting, packaging, franking, and dispatch.
  • Manage special post office and courier deliveries, ensuring timely distribution to designated recipients.
  • Handle messenger duties, including message relay and telephone call management, directing callers to appropriate extensions.
  • Create, sort, and file documents according to prescribed filing systems, ensuring easy retrieval when needed.
  • Assist with data entry using case management systems and spreadsheets, including new case entries and recording agreed costs.
  • Conduct photocopying and shredding tasks as requested, including trial bundles preparation.
  • Undertake various additional tasks as required, such as costs breakdowns, data entry on TCMS, and opening new cases.
  • Assist with file closure procedures, including billing and archiving completed files.
  • Welcome and direct visitors, manage fax communications, and administer meeting room bookings as needed.
  • Provide IT support, including daily backups, file transfers, and maintenance activities.
  • Perform copy/audio typing duties and other general clerical tasks as assigned.

Skills, Knowledge and Expertise

  • You possess excellent organizational and administrative skills, with a keen eye for detail and accuracy.
  • Proactive and adaptable, you can work effectively under your own initiative and as part of a collaborative team.
  • Strong communication skills enable you to interact effectively with colleagues and external stakeholders.
  • Computer literate with good keyboard skills, you're familiar with Microsoft Word and have experience with electronic case management systems.
  • Previous office environment experience is desirable, along with proficiency in Microsoft Excel and Outlook.
  • You're reliable, dependable, and enthusiastic, with a client-focused approach to your work.

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