HMRC selects cloud SAP to rebuild the technology that underpins the UK’s tax administration. The existing Enterprise Tax Management Platform (ETMP) is built on SAP ECC 6.0, software released in 2006. This ageing platform supports more than 45 tax regimes and handles over £800 billion in tax revenue each year. As part of this modernisation, an enterprise tax management platform upgrade will move HMRC towards a more modern, cloud based infrastructure. With mainstream support for ECC ending in 2027 and extended support finishing in 2030, HMRC launched a regeneration programme to modernise the system
Tens of thousands of HMRC staff access the Enterprise Tax Management Platform (ETMP) daily to administer taxes ranging from Income Tax to VAT. HMRC’s accounting officer, Sir Jim Harra, outlined two non-negotiable requirements for the replacement system: it must operate as software-as-a-service (SaaS) and be hosted in the UK. After taking technical and legal advice, HMRC concluded that migrating to SAP S/4HANA—the successor to ECC—was the only option that met those requirements. In a direct award with negotiation, SAP was chosen by HMRC.
HMRC’s modernisation programme reflects the need to maintain reliable technology for processing tax returns, payments and accounting across the UK. The move to SAP S/4HANA is intended to provide a more sustainable technical foundation while supporting future improvements to reporting, automation and digital services.
According to the UK contracts portal, HMRC signed the Enterprise Tax Management Platform (ETMP) Regeneration Software contract on 19 December 2025. HMRC awarded the £275,366,367 contract to SAP UK Ltd through a “Direct Award with Negotiation” procedure. The ten-year agreement runs until 31 December 2035. Under the contract, SAP UK Ltd will migrate HMRC’s ETMP from ECC 6.0 to S/4HANA through RISE with SAP, a subscription service that combines cloud hosting, software and managed services.
HMRC plans to complete the migration by 2029. Two separate procurements complement the software contract:
HMRC’s accounting officer assessment outlines several benefits of moving to S/4HANA:
HMRC digital tax records will remain important as the department develops its digital infrastructure. Businesses should maintain complete, accurate records and follow the applicable reporting requirements, including Making Tax Digital obligations where relevant.
Most taxpayers will notice little immediate change. HMRC tax platform modernisation focuses primarily on upgrading the department’s internal technology rather than changing how businesses submit their tax returns. However, improved processing capabilities may help HMRC deliver more responsive services over time, making accurate and up-to-date accounting processes increasingly important.
Businesses should ensure their accounting systems meet Making Tax Digital (MTD) requirements and can integrate with HMRC’s evolving digital services. As HMRC increasingly uses real-time analytics, businesses will need to maintain accurate digital records and submit their tax information on time.
As accounting professionals, we expect HMRC’s transformation to lead to:
Apex Accountants help clients navigate the changing tax landscape. Our services include:
HMRC’s decision to migrate its Enterprise Tax Management Platform to SAP S/4HANA via RISE with SAP is a significant investment in the future of the UK tax system. The £275 million contract, awarded through a direct negotiation due to strict sovereignty and SaaS requirements, aims to ensure that HMRC can continue to collect and manage more than £800 billion of tax revenue efficiently. The new platform promises better performance, a modern user experience, and the foundation for AI-powered tax administration. While taxpayers may not notice immediate changes, businesses should prepare for a more digital, data-driven tax environment. As always, Apex Accountants are here to help you stay compliant and make the most of the opportunities presented by HMRC’s digital evolution.
The Enterprise Tax Management Platform is HMRC’s core system for processing returns, accounting, and payments across more than 45 tax regimes, and it handles over £800 billion in revenue each year.
SAP will stop mainstream support for ECC 6.0 at the end of 2027. HMRC wants to avoid running critical systems on unsupported software and to take advantage of modern cloud capabilities.
The ETMP regeneration software contract with SAP is worth £275.37 million over ten years.
HMRC’s accounting officer evaluated multiple suppliers but insisted on a UK-hosted software-as-a-service (SaaS) solution. HMRC selected SAP through a direct award with negotiation rather than a full open competition because SAP was the only supplier that met these requirements, according to the procurement notice.
HMRC expects the S/4HANA-based ETMP to be operational in 2029.
The migration is primarily a back-end transformation. HMRC says it will enable more responsive digital services and real-time reporting, but existing filing obligations remain. Taxpayers should continue to comply with Making Tax Digital requirements and other reporting obligations.
SAP and HMRC plan to develop AI tools to surface insights faster, automate manual processes, and enhance decision-making across tax administration. Examples could include improved fraud detection or personalised guidance for taxpayers.
No — filing deadlines stay in law. The change affects HMRC’s internal record-keeping and future digital services; your Self Assessment, VAT and corporation tax dates are unchanged.
Yes, over time — consolidated records mean HMRC sees a more complete picture across your taxes sooner. That makes consistent, accurate filing across all taxes more important, which is what we manage for clients.
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