Actuarial Optimism and the Cash Test: A Pension Durability League Table for 2026

The Surplus Is a Valuation, Not a Vault

Anyone reading the annual reports of Britain's largest companies in 2026 will have noticed a recurring line item: the defined-benefit pension scheme in surplus. After two decades in which the pension deficit was the boardroom's quiet embarrassment, the aggregate position across much of the UK's corporate landscape has flipped. Rising gilt yields, maturing scheme demographics and a long retreat from equity-heavy return assumptions have combined to push many schemes into the black on a technical-provisions basis.

That is a genuine achievement of governance and funding discipline. It is also widely misunderstood. A surplus is an actuarial output, not a bank balance. Two companies can report the same £200m surplus and be in completely different positions: one could be within touching distance of securing members' benefits with an insurer, the other could be relying on an expected return on assets that may never materialise. The purpose of this league table is to grade that difference.

Four Tests of Durability

Our Pension Durability Index scores the 2026 Top 100 across four weighted tests, each drawn from public disclosures, scheme funding statements and the trustees' own reporting.

1. The funding basis (30%). A surplus measured on a scheme-specific basis is not the same as a surplus measured on a buy-out basis. The Pensions Regulator's defined-benefit funding code, in force since 2024, pushed trustees towards journey plans with a low-dependency endgame — but it still permits a wide range of assumptions. We reward schemes whose funding basis is anchored to gilts plus a modest margin, and mark down those whose surplus leans heavily on future return-seeking asset performance.

2. Buy-out coverage (25%). The insurance market is the ultimate arbiter of what a promise is worth. Schemes whose assets cover buy-out liabilities are, in a real sense, fully funded. Those whose buy-out coverage sits below 90% may hold a technical surplus while remaining years away from a transaction.

3. Covenant strength (20%). A surplus is only as durable as the employer standing behind it. A well-funded scheme sponsored by a highly leveraged, cyclical business carries more risk than a marginally funded scheme backed by a utility with predictable cash flows. We assess sponsor leverage, interest cover and the trustees' own assessment of employer covenant.

4. Cash mechanics (15%). This is where boards often have an unwelcome surprise. A surplus cannot simply be paid into the dividend. Statutory rules on surplus refunds, scheme-specific trustee consent and the tax treatment of refunds mean that a surplus is frequently locked. We reward schemes with clear, documented routes to extract value — through contribution holidays, deficit repair offsets or agreed surplus-sharing arrangements.

5. Governance (10%). Trustee independence, valuation frequency and the clarity of the scheme's integrated risk management framework complete the score.

The Shape of the Table

The 2026 index is not a simple hierarchy of size. It is a story of three tiers.

At the top sit what we term fortress schemes. These are typically long-closed schemes in mature sectors — utilities, defence, established industrials — where trustees have de-risked into gilts and bonds, where buy-out coverage exceeds 100% and where the sponsor's covenant is robust. A fortress scheme is a genuine hidden capital buffer: it can support M&A, underwrite a dividend policy or act as a shock absorber in a downturn. It does not usually appear in the equity research, but it matters to the board.

In the middle sit journey-plan schemes. These are well governed and on track, but their surplus depends on a continuation of current market conditions. They are funded on a basis that assumes some return on growth assets. They are not fragile, but they are not buffers either. For these companies, the pension scheme is a managed liability rather than a source of strategic optionality.

At the lower end sit two distinct groups. The first are actuarial optimists: companies whose reported surplus is heavily dependent on discount rate assumptions, longevity estimates and the treatment of contingent assets such as letters of credit or parent guarantees. Strip those away and the surplus narrows or vanishes. The second are the hidden-deficit companies, where an accounting surplus under IAS 19 masks a buy-out shortfall. These are the schemes most likely to surprise a future acquirer.

Why This Matters for M&A and Dividends

In the deal market, pension schemes are rarely the headline issue but frequently the deal-breaker. A buyer inheriting a scheme with a genuine surplus and a clear trustee relationship is acquiring optionality. A buyer inheriting an actuarially optimistic scheme is acquiring a negotiation. The Pensions Regulator's clearance process and the trustees' statutory powers mean that a surplus that exists on paper may not survive due diligence.

Dividend capacity is similarly nuanced. A company with a fortress scheme may be able to take a contribution holiday, releasing cash to the operating business. A company with an optimistic scheme may be required to maintain deficit repair contributions even while reporting a surplus to shareholders. The two positions look identical in the press release and entirely different in the cash-flow statement.

What Boards Should Take From the Table

The strategic lesson for 2026 is that pension strength is a governance question, not a numerical one. The companies that will extract real value from their schemes are those that have invested in trustee relationships, documented their endgame and been honest about the assumptions behind their surpluses. A surplus is a mood; a durable surplus is a strategy.