The government says the national debt is £2.8 trillion. That only counts borrowing. Add the pensions they promised without funding, the contracts they locked in for decades, the nuclear waste, the NHS payouts — and the real number is £12.1 trillion. You're paying for all of it.
Data updated April 2026 · Sources linked below
Why doesn't the government count this? Because no government wants to. The official national debt (PSND) only counts borrowing — bonds and bills. It ignores trillions in promises: pensions with no fund behind them, PFI contracts locked in for decades, nuclear waste that will take 120 years to clean up, and NHS negligence payouts that keep growing.
The Whole of Government Accounts (WGA) — the government's own consolidated balance sheet — shows £5 trillion in liabilities. But even that excludes state pension obligations. The auditors have disclaimed the accounts for two consecutive years, meaning they couldn't even verify the numbers.
The state pension is the biggest item. Politicians will say "it's not a debt — we can change the rules." That's true. But until they do, it's a promise made to 67 million people, funded entirely by future taxpayers. No money was ever set aside. There is no pot.
Official national debt (PSND): ONS Public Sector Finances, 2024-25. £2,805bn (~96% of GDP).
Unfunded public sector pensions: Whole of Government Accounts 2023-24 (£1,312bn net pension liabilities) updated with OBR 2025 estimates (~£1,400bn). Covers NHS, teachers, civil service, police, armed forces, firefighters, and local government pension obligations not backed by invested assets.
State pension obligations: ONS Pension Satellite Account (last published to 2015) extrapolated using OBR projections. Present value of accrued state pension rights estimated at ~£3,840bn. This is the most contested figure — the government excludes it from all balance sheets. We include it because it represents real obligations to real people.
PFI/PF2: HM Treasury / Infrastructure and Projects Authority 2024 summary data. 665 operational projects with ~£136bn in remaining unitary charge payments.
Nuclear decommissioning: Nuclear Decommissioning Authority Annual Report 2024-25. Undiscounted lifetime cost estimate: £132bn over 120 years.
Clinical negligence: NHS Resolution Annual Report, March 2025. £60.3bn in outstanding provisions — tripled in 20 years.
Bank of England QE losses: OBR forecast lifetime cost of the Asset Purchase Facility: £133.7bn. BoE APF Quarterly Report Q4 2025.
Other liabilities: Residual from WGA 2023-24 including provisions for student loan write-offs, contaminated land remediation, military compensation schemes, and other contingent liabilities.
Per-household calculation: Total real debt (£12,100bn) divided by 28.1 million UK households (ONS). Per-taxpayer: divided by ~33 million income taxpayers. Per-person: divided by ~67 million population.
Comparisons: Average UK house price: ONS UK HPI (£268,000 as of December 2024). Average lifetime earnings: ONS ASHE median full-time salary (~£35,000) over ~30 working years. Average pension pot: FCA Financial Lives Survey 2024.
Historical real debt figures: Derived from TaxPayers' Alliance annual "Real National Debt" briefings (2010-2024), cross-referenced with WGA publications and OBR fiscal sustainability reports.
Disclaimer: The "real national debt" is not an official government statistic. It is an analytical framework that aggregates liabilities from multiple official sources. The state pension component depends heavily on discount rate assumptions — small changes can shift the total by trillions. We use this framework because it shows the full scale of promises the government has made on your behalf, funded by your future taxes. The official PSND figure is shown separately throughout.
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