Technical Senior SIPP Administrator

Posted:	29/04/26
Recruiter:	Morris Sinclair Recruitment
Reference:	3103372073
Type:	Contract
Salary:	Competitive
Location:	Hampshire
Description:	Technical Senior SIPP Administrator HMRC Reporting & Transition Support (Contract) Contract Details Contract Length: 6 months Rate: Competitive day rate (DOE) Location: Fully Remote (UK-based required) Overview We are supporting a growing financial services organisation seeking an experienced Senior SIPP Administrator to provide specialist support during a key operational period. This role combines hands-on SIPP administration, HMRC reporting expertise, and knowledge transfer responsibilities, making it ideal for a technically strong contractor who can deliver immediate impact while supporting long-term capability within the business. Role Purpose To deliver high-quality end-to-end SIPP administration across a complex portfolio, while taking ownership of HMRC reporting obligations, technical oversight, and structured handover to the internal team. Key Responsibilities SIPP Administration & Case Management Oversee full lifecycle administration of SIPPs, from onboarding through to ongoing servicing Process contributions, transfers (in/out), crystallisations, and benefit payments Manage drawdown activity, including pension payroll calculations Take ownership of complex, non-standard, and high-value cases Ensure all activities are completed accurately, efficiently, and in line with FCA and HMRC requirements HMRC Reporting & Tax Compliance Prepare and submit Event Reports, including benefit crystallisation and other reportable events Complete Accounting for Tax (AFT) returns, including calculation and reporting of scheme tax charges Manage and submit Relief at Source (RAS) claims within required timelines Complete and maintain Pension Scheme Returns (PSR) Monitor and report on lump sum allowances and post-LTA regulatory requirements Support reporting requirements for overseas transfers (QROPS) where applicable Ensure all HMRC submissions are accurate, timely, and compliant with current legislation Technical Oversight & Quality Assurance Act as a subject matter expert on SIPP regulation and pension tax rules Review and check work completed by team members to ensure accuracy and compliance Provide technical guidance on complex cases and regulatory interpretation Maintain up-to-date knowledge of pension legislation and HMRC changes Client & Stakeholder Management Liaise with clients, advisers, and third parties to resolve queries efficiently Maintain high service standards and clear communication across stakeholders Support resolution of complex or escalated issues Process Improvement Identify opportunities to improve operational efficiency and controls Assist in enhancing internal processes and documentation Support consistent delivery of high-quality administration across the team Knowledge Transfer & Transition Support (Key Focus) Train internal pensions team on SIPP processes, HMRC reporting, and best practices Document procedures, workflows, and technical requirements Support a structured handover of responsibilities to the permanent team Act as a subject matter expert during transition, ensuring continuity and confidence in ongoing administration Contribute to building a sustainable, scalable internal SIPP function Candidate Profile Essential 5+ years experience in SIPP administration (end-to-end lifecycle) Strong working knowledge of HMRC pension reporting (Event Reports, AFT, RAS, PSR) Proven experience handling complex pension cases independently Strong understanding of UK pension legislation and regulatory requirements High level of accuracy and attention to detail Ability to work autonomously in a remote environment Desirable Experience supporting team training, mentoring, or transitions Exposure to scheme implementations or internalisation of pension services Professional qualifications (CII, PMI, or equivalent) Why Apply? Immediate contract with a well-regarded organisation Fully remote High-impact role combining technical, operational, and strategic input Opportunity to shape and support a long-term internal pensions capability
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Technical Senior SIPP Administrator

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