THE PFI RECKONING · ARTICLE 1 OF 12
What Actually Happens When a PFI Contract Expires
Most people talk about PFI expiry as if it were a date on a calendar. It is not a date. It is a multi-year commercial, operational, legal, and asset risk event that most public sector authorities have never managed before and are not resourced to manage now. This article explains what actually expires, why the final five years matter more than the previous twenty, and why the NAO believes the public sector is materially underprepared.
PFI expiry is not handback. It is a test of whether you remained an intelligent owner of the asset.
According to the NISTA PFI and PFI2 projects 2025 Summary Data publication (March 2026), with detailed portfolio data as at 31 March 2024 (per the IPA February 2025 publication on which the dataset is built), there are 665 operational PFI contracts in the UK with a combined capital investment value of approximately £50 billion. 79% of that value relates to social infrastructure (hospitals, schools, prisons, social housing, and accommodation) and 21% to economic infrastructure (roads, lighting, waste, and water). Total unitary charge payments remaining from the 2024/25 financial year onwards through to 2052/53 are approximately £136 billion. Most contracts were signed between 1997 and 2012 with operational terms of 25 to 30 years. The peak expiry year is 2036, when 69 contracts reach their end date. Around 140 contracts will expire before 2030. The final two contracts expire in 2048. The 2025 Summary Data published in March 2026 confirms that the count is now beginning to fall as 2024 and 2025 expiries take effect.
665 operaPonal PFI contracts in the UK as at 31 March 2024. £50bn capital investment, 79% social infrastructure and 21% economic infrastructure. £136bn unitary charge payments remaining through 2052-53. Peak expiry year 2036 with 69 contracts. Source: HM Treasury and IPA, PFI and PF2 projects 2024 Summary Data (February 2025); NISTA 2025 Summary Data (March 2026).
PFI was designed to solve real problems. Public sector capital budgets in the 1990s could not fund the infrastructure the country needed. PFI transferred construction risk to the private sector, funded maintenance discipline through the lifecycle programme, bundled design, build, finance, and operate incentives into a single long-term contract, and delivered upfront private capital for hospitals, schools, roads, prisons, and other critical infrastructure that would not otherwise have been built when it was needed.
Some PFI projects have delivered well at expiry, and a small number have been ended early through buyout. Northumbria Healthcare NHS Foundation Trust executed the first NHS PFI buyout of Hexham General Hospital in June 2014 via a £114.2m loan from Northumberland County Council through the Public Works Loan Board, saving the trust around £3.5m a year. This was an early termination and not a natural expiry. Treasury and DHSC policy now actively dissuades trusts from copying the approach, but the precedent stands. HMP Kilmarnock was handed back to the Scottish Prison Service on 17 March 2024 at natural contract expiry after 25 years of operation by Serco under Kilmarnock Prison Services Ltd, the first privately financed and run prison to move into the public sector in Scotland. Scottish Water’s Highland Wastewater PFI (Allanfearn and Fort William wastewater treatment works) was handed back at natural contract expiry on 29 May 2022, with 14 staff TUPE’d to Scottish Water; separately, the Aberdeen Wastewater PFI was bought out in September 2022 in an early termination. Early road PFIs have generally performed to expectation. The model is not inherently broken. But the end of the model, the expiry and handback process, is where its structural weaknesses are now being tested at scale for the first time.
A note on scope. The NISTA 2025 Summary Data covers PFI and PF2 contracts procured by English central government departments and their arm’s-length bodies, plus devolved nation PFI where data is shared. It explicitly excludes NHS LIFT (Local Improvement Finance Trust), Scottish NPD (non-profit distributing) and hub models, the Welsh Mutual Investment Model (MIM), and the Northern Ireland 3PD model. The handback regime differs across each of these PPP families. This series focuses on PFI and PF2 but the structural challenges, particularly around asset condition, data, workforce, and compliance, apply across the wider UK PPP estate.
Healthcare and education dominate the PFI portfolio. DfE and DHSC PFI projects account for 47% of the total, 313 of 665 contracts. This concentration matters because the sector-specific compliance requirements in healthcare and education are among the most demanding and because the post-handback operating environment in both sectors is shaped by regulatory frameworks that have changed substantially since these contracts were signed.
The government stopped using the PFI model in October 2018. No new contracts have been signed since. PF2, launched in December 2012 as a reformed version of PFI with structural changes (government took a minority equity stake, debt-to-equity ratio adjusted, and sod FM removed from scope), was used 12 times for projects with a total capital value of around £900 million before it was scrapped alongside PFI in 2018. The Carillion collapse in January 2018 hit several PFI and PF2 projects simultaneously, most visibly Midland Metropolitan Hospital (a PF2 project where construction stalled mid-build), and exposed the contagion risk that the PF2 reforms had been intended to mitigate. Existing PFI and PF2 contracts remain in force, and the earliest are now reaching expiry. When the contracts end, the assets transfer back to the public sector. The authority inherits not just the building but the maintenance liability, the workforce, the data, and whatever condition the asset happens to be in. The lesson set from PF2 and from Carillion is the reference point for any future PPP model.
That transfer is what most people mean when they say PFI expiry. They imagine a handover. A date. A moment where the keys change hands. That is not what happens.S
PFI expiry is not a single event. It is a mulP year process involving asset condiPon assessment, lifecycle fund reconciliaPon, contractual interpretaPon, data transfer, workforce transiPon, service conPnuity planning, and in many cases formal dispute resoluPon. Most authoriPes are not resourced for any of it.
What actually expires when a PFI contract ends?
The common assumption is that what expires is the FM contract. The private sector stops maintaining the building, and the public sector takes over. That assumption is dangerously narrow. Before examining what expires, it is worth understanding who is on the other side of the table. The PFI structure is layered. The SPV (Special Purpose Vehicle) holds the project agreement with the authority. The FM provider delivers operational services under a subcontract to the SPV. Equity investors own the economic interest in the SPV and receive dividend returns. Senior lenders hold the debt that financed the construction and protect their position through covenants and step-in rights. The original construction subcontractor, often long departed after the defects liability period, holds residual design and build liability. Specialist operation and maintenance subcontractors hold operational risk for specific systems. Negotiations during expiry happen at investor and SPV levels, not at operational levels. Understanding who you are talking to and what they can agree is a prerequisite for everything that follows.
When a PFI contract reaches its expiry date, the following obligations, mechanisms, and liabilities all cease, transfer, or become contested simultaneously:
The payment mechanism stops. The authority stops paying the unitary charge. The SPV stops receiving revenue. Every commercial incentive that governed the relationship for 25 years disappears overnight. The FM provider loses a long-term revenue stream. The SPV begins winding down. The investors exit.
The asset condition liability transfers. The asset is supposed to be handed back in a condition that allows continued operation for a defined period, typically 5 to 10 years, without abnormal capital expenditure. The exact wording varies by contract. Many early PFI contracts, particularly those signed before the SOPC4 guidance in 2007, have no detailed handback condition definition at all. The authority and the SPV will frequently disagree on what ‘condition’ means, how it is measured, and who is responsible for remediation. For NHS PFI estates, condition data typically flows through the ERIC (Estates Return Information Collection) system, which NHS England uses to allocate capital funding. The reliability and limitations of ERIC data are examined in the ERIC Reckoning series.
The lifecycle fund is reconciled. Most PFI contracts include a lifecycle replacement fund built into the unitary charge. The fund was designed to pay for capital replacements over the contract term: roofs, boilers, lids, cladding, and mechanical and electrical systems. In practice, many SPVs have deferred replacements, substituted cheaper alternatives, or redesigned maintenance regimes to reduce lifecycle spend and protect investor returns. The gap between what was funded and what was actually replaced becomes visible at expiry. If the fund is exhausted and the asset needs remediation, the question of who pays is contractual, commercial, and frequently litigated. Many lifecycle cost assumptions in PFI contracts were originally derived from BCIS benchmarks. The accuracy of those benchmarks and the structural dependency they create across UK FM pricing is examined in the BCIS Intelligence Series.
The maintenance records transfer The SPV is contractually required to hand over a complete set of asset data, maintenance records, operating and maintenance manuals, warranties, certificates, and compliance documentation. In practice, 25 years of records spanning multiple CAFM systems, multiple subcontractors, paper archives, and staff who have long since left mean the data set is almost always incomplete, inconsistent, or partially missing. The authority inherits whatever exists.
The workforce transfers or disperses The FM staff who maintained the building for 25 years either transfer to the authority under TUPE, transfer to a new contractor, or face redundancy. Pension obligations, particularly NHS pension scheme and LGPS liabilities, create transfer costs that are routinely underestimated. The institutional knowledge about the building, its quirks, its problem areas, and its informal workarounds leaves with the people who are not retained.
Compliance liability transfers The FM provider maintained the building to the contractual specification agreed upon at financial close. That specification reflected the regulatory environment of 2001 or 2004 or 2008. It does not reflect the Building Safety Act 2022, current fire safety regulations, or 2026 statutory compliance requirements. The authority inherits an asset that may be contractually compliant but statutorily exposed. Who pays for the upgrade from the original specification to current law is one of the most contentious questions in PFI expiry. Most PFI Hard FM specifications reference SFG20 task durations as the compliance baseline. The structural limitations of SFG20 as a compliance and pricing framework are examined across the SFG20 Reckoning series, including why the gap between contractual compliance and statutory compliance is wider than most authorities realise.
Latent disputes surface. Variations to the project agreement accumulated over 25 years. Informal arrangements between the FM provider and the authority. Disputed deductions. Unresolved maintenance claims. Changes to the output specification that were never formally documented. All of this surfaces during the handback process because both parties are now examining the contract in detail for the first time in years, often for the first time since financial close.
The ten largest private investors in PFI own more than 50% of all UK contracts. They take a coordinated, portfolio-wide approach to expiry. The ten public authorities with the greatest PFI involvement oversee just 18% of all contracts. That structural asymmetry shapes every handback negotiation.
A third of public authorities surveyed by the NAO expect formal disputes over PFI handback. The dispute risk is highest where the contract has vague handback condition definitions and where the lifecycle fund has been managed aggressively by the SPV.
Why the final five years matter more than the previous twenty
The National Infrastructure and Service Transformation Authority (NISTA), formerly the Infrastructure and Projects Authority, recommends that expiry planning should begin seven years before the contract end date. The NISTA PFI Foundations for Contract Managers guidance (March 2026) and the Asset Condition Playbook (March 2025) both emphasise that asset condition surveys should be completed five years out. NISTA expects formal Senior Responsible Owner (SRO) governance of the expiry process as a programme, not as a contract-administration task.
This timeline is not conservative. It is the minimum required to identify problems, agree on remediation, complete works, and resolve disputes before the contract ends. Most authorities start at four years. The NAO considers this insufficient.
The reason the final five years matter disproportionately is that the incentive structure of the contract inverts during this period. For the first 20 years, the SPV has a commercial interest in maintaining the asset to avoid deductions and protect the revenue. In the final five years, the SPV has a commercial interest in minimising expenditure because every pound saved on maintenance flows directly to investor returns. The payment mechanism was designed to govern ongoing service delivery, not to enforce handback conditions. The authority’s leverage weakens precisely when it matters most.
140 PFI contracts will expire before 2030. NISTA recommends 7 years preparaPon with formal SRO governance. Many authoriPes started late.
The final five years of a PFI contract are when strategic mistakes compound. Late surveys. Weak data. Poor retained knowledge. Misaligned incenPves between the SPV and the authority. Every month of delay in this period narrows the opPons available and increases the cost of the outcome.
Why most authoriPes are exposed
- 25% of public authoriPes admit they lack the in house skills to manage PFI contract expiry. NAO survey.
- 60% plan to hire consultants to manage the process. NAO survey.
The people who negotiated these contracts 25 years ago have retired. The commercial directors who understood the payment mechanism have moved on. The estate managers who knew the building have been replaced multiple times. The institutional knowledge that would allow the authority to manage expiry from a position of strength has, in most cases, gone.
The authority is approaching the single most commercially significant moment in the contract’s life with a team that has never been through the process before. Many are discovering that the contract they inherited contains vague handback provisions, a limited definition of asset condition requirements, and no detailed mechanism for dispute resolution at expiry.
Meanwhile, the other side of the table is coordinated, resourced, and experienced. The ten largest private investors in PFI own more than 50% of all UK contracts. They have dedicated teams managing expiry across their portfolios. They have legal advisers who have seen the handback process multiple times. They have a playbook. The authority does not.
The NAO has warned that there is a significant risk that vital infrastructure could be returned to the public sector in unsatisfactory condition and that services could be disrupted unless a more consistent and strategic approach is taken. Of nine PFI projects that had expired by the time of the NAO’s 2020 report, four authorities were unsatisfied with the asset condition they inherited. That warning was issued in 2020. The bulk of expirations are now beginning.
Authorities that treat expiry as a compliance exercise often discover too late that it is a strategic asset decision. The earlier the estate is understood, the more options remain available.
Expiry is not a handback. Expiry is a reckoning.
PFI expiry is not a date. It is a test of whether the client remained an intelligent owner of the asset. Most are about to discover the answer.