Technical Senior SIPP Administrator*

Recruitment agency: Morris Sinclair Recruitment

Location: Fully Remote (UK-based required) 

Temporary: 6 months

Salary: Not listed

• Job 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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