Defined benefit (DB) pension schemes promise their members a pension for life. However, while one member may live to age 75, another might live to age 95. When working out how much money a DB scheme needs to fund the benefits it has promised members, trustees (or rather their actuarial advisers) therefore have to make an assumption about how long, on average, members will live – a longevity assumption.
If that longevity assumption proves to be incorrect and the scheme has to pay benefits for longer than expected, the trustees will need to find additional money to fund those benefits. And usually they will look to the scheme’s sponsoring employer for that money.
Finding ways of managing a scheme’s longevity risk is therefore beneficial for both the trustees and the employer. One way of doing this is a transaction called a longevity swap. Between 2009 and 2018, nearly 50 pension schemes entered into longevity swaps, including schemes sponsored by Astra Zeneca, AkzoNobel, BA, BAE Systems, BMW, BT, Heineken, ITV and Rolls-Royce.