Job Description: To support the tax professionals in ensuring all UK and Irish entities maintain high quality tax compliance and reporting. The role is responsible for the data, analysis, and controls that enable accurate, timely, and compliant tax reporting and tax return preparation for the UK and Ireland group. The jobholder partners closely with tax specialists, the Mars Accounting Service Centre, PwC, and business unit finance teams to ensure that accurate, complete, and well controlled data flows into corporation tax returns, tax provisioning, forecasting, and group reporting. What will be your k ey r esponsibilities ? Own and manage all financial data required from PwC, the Mars Accounting Service Centre, and business units to ensure complete, accurate , and timely data for tax submissions. Coordinate and validate financial data across legal entities, ensuring it is fully aligned to tax reporting requirements. Extract, prepare and analyse data used to prepare Corporation Tax Returns, tax payments and other tax processes. Support the corporation tax reporting process, including tax returns, deferred tax calculations, and group reporting. Deliver accurate and well supported data for audit queries and tax authority requests. Support the UK Tax Senior Manager in integrating newly acquired or newly established businesses into the UKandI tax centre processes. What do we need from you? Finance qualification and data analyst experience or equivalent expe