Our performance & ESG metrics
Alongside our broader impact and contribution sit the key financial and ESG metrics through which we measure our ongoing performance.
Philip Mills, UK Managing Partner
As the economic headwinds continued during FY25, we not only focused on the effective use of technology but also on ensuring we were operating more cost effectively.
Positioning our firm to meet our clients' evolving needs was a priority for the UK Executive. We transitioned to a new global storefront which has helped improve our client service delivery and encourage greater collaboration across our firm as well as unlocking further growth opportunities across Europe.
Over FY25 we invested over £158m in technology and also invested in four new technology delivery centres in the UK (Belfast, Cardiff, Manchester, and Newcastle), alongside new offices in Bristol and Aberdeen.
Our new offices are a great example of how we design, run and use our spaces to support our commitment to achieve net-zero by 2040. And our refreshed sustainable delivery framework and responsible procurement policy are creating opportunities to collaborate with clients and suppliers in advancing towards net-zero emissions.
We have continued to invest in reward, including the introduction of an enhanced package of family-friendly policies. And investment in learning and development opportunities so our people are able to meet both the current and future demands of clients – after all, it’s the people who make the difference.
Looking ahead to FY26, we are well-positioned to navigate the ongoing economic challenges and capitalise on emerging opportunities. Our ongoing investment in technology, infrastructure and our people will enable us to continue delivering for our clients and contribute positively to the communities we serve.
Heather Bygrave, UK Chief Financial Officer
We entered FY25 expecting markets to be unsettled, and there was prolonged uncertainty coupled with subdued market confidence throughout the year. While this had a clear impact on our Technology & Transformation business in the UK and our Swiss businesses, our other UK businesses had some strong achievements and grew in the year.
When combined, the financial year ending 31 May 2025 saw our overall revenue decrease 1% to £5.68bn, compared to 2% growth in the previous year. Within this context, we proactively managed our costs and investment decisions.
Underpinned by our commitment to quality, reflected in our market-leading Financial Reporting Council quality scores, our Audit & Assurance practice delivered 3% revenue growth, building on a strong previous year. We’ve continued to invest in technology and data, with our digital audit platforms, Deloitte Omnia and Deloitte Levvia, supporting our people to conduct audits of all sizes and complexity.
Our new Strategy, Risk & Transactions Advisory business demonstrated strong 3% like-for-like revenue growth. This success highlights the strength of our M&A service offerings and the continued high demand for our financial services risk and regulatory expertise.
We are helping our Tax & Legal clients adapt to a rapidly changing environment. In FY25 our T&L practice achieved 7% revenue growth, reflecting our ability to support clients navigating the complexities of technology-based solutions, new regulations, and the increasing demand for transactions tax advice.
Our Technology & Transformation practice continued to shift its focus towards large-scale change, technology implementation, and related services. Strong demand for enterprise resource planning (ERP) software implementation, Cyber, and Operate services resulted in positive revenue growth in these areas. Other areas experienced reduced demand, and this led to an overall UK revenue contraction.
In Switzerland, our businesses also experienced similar market challenges as the UK resulting in a 3% (in GBP terms) decline in overall revenue.
We invested £253m in salary increases and bonus payments, recognising the hard work and dedication of our people. We also invested over £64m in learning and development. While FY25 presented challenges, we enter FY26 in a strong position and we’ll continue to manage costs effectively and make bold and informed investment decisions to ensure sustainable growth and continued success.
Metrics
Business
Breakdown of our revenue performance
Deloitte LLP reported revenue of £5.676bn for the year ended 31 May 2025. Growth for each of our Businesses for the last two years can be viewed in our financial and ESG Performance Metrics.
Growth for each of our industries for the last three years can be viewed in our full financial and ESG Performance Metrics.
Climate
Net-zero goals
Deloitte is committed to becoming net-zero globally, including at UK level. We’ve set science-based targets to 2040 which are registered with the SBTI. Our WorldClimate strategy drives our progress towards our net zero ambition.
Our science-based target for scopes 1 & 2 greenhouse gas (GHG) emissions is a 70% reduction by FY30. Through investments in energy efficiency in our buildings and purchasing only renewable electricity we continue to be ahead of schedule in meeting this target.
We are currently meeting our target
We have nearly reached our target to operate only EVs in our fleet, well ahead of schedule, having removed all combustion engine options from our car leasing scheme in FY22.
We are working towards meeting our target
We procure 100% renewable electricity, either through renewable tariffs, or by matching consumption on non-renewable tariffs with renewable energy certificates.
We are currently meeting our target
Business travel continued to decrease in FY25 as a result of the focus on sustainable delivery. Continuing to tackle emissions from business travel remains a priority for FY26.
We are working towards meeting our target
Community
Our UK Social Impact strategy, previously referred to as 5 Million Futures (5MF) is about using our expertise and resources to drive meaningful change on the issues that matter most to our people, clients and society. For us, that means building better futures with a focus on reducing digital exclusion, advancing business transition to net-zero and empowering people to build skills now and for the future. In FY25, we reached over 440,000 people working with 100 society partners.
Our community investment is the financial value of all of our societal impact including donations, pro bono and volunteering hours; all of which support our ambition to build better futures.
Our people are making an impact that matters by using their skills and expertise through volunteering, amplifying the impact of our charities and schools.
Offering professional expertise to our partner charities is a core feature of our programme. Our professionals serve our society partners like we do our clients, delivering high impact projects to address their business challenges.
Detailed metrics
Alongside the performance highlights shown above, we compile a more detailed view of key business and ESG performance metrics. This is intended to provide a holistic overview of our financial and non-financial performance, supporting and reinforcing our Annual Review narrative.
WEF Stakeholder Capitalism Metrics
Deloitte is a global signatory to the World Economic Forum’s “Commitment to Adopt and Implement the Stakeholder Capitalism Metrics”. Each year, Deloitte UK produces an indexed report against the 21 core Stakeholder Capitalism Metrics, with explanatory narrative and links to relevant further information.