Your new companyAn established top-tier accountancy and advisory firm is seeking a Business Tax Senior to join its growing Cardiff-based Business Tax team. Known for its supportive, people-first culture and ranking among the Best Places to Work, this firm champions collaboration, technical excellence, and continuous personal development. You will be joining a forward thinking organisation that values diversity, agility, and genuine career progression.Your new roleAs a Business Tax Senior, you will play a key role in delivering high quality corporate tax compliance and advisory work across a diverse client portfolio, ranging from entrepreneurial businesses to large international groups. Your responsibilities will include: Preparing and reviewing corporation tax computations and returnsAssisting with P11Ds, PSAs, ATED, ERS, and EMI reportingSupporting advisory projects, including capital allowances, succession planning, profit extraction, and employee incentivesIdentifying wider tax planning opportunities and collaborating with subject specialistsManaging client communications and building trusted relationshipsCoaching and reviewing the work of junior team membersWorking collaboratively across offices and service lines to deliver seamless solutions What you''ll need to succeedYou will be technically strong, commercially aware, and motivated by the opportunity to make a meaningful impact within a high performing tax team. Ideally, you will bring: ACA / ACCA and/or ATT or CTA q