The UK State Pension currently pays £12,547 a year. It’s a helpful foundation, but for most people, it isn’t nearly enough to live comfortably in retirement.
So, what would it take to generate that same income entirely from an ISA portfolio, independently of the government?
Crunching the numbers
Following the widely used 4% rule, an investor would need a portfolio worth approximately £313,675 to sustainably generate £12,547 a year in passive income.
Obviously, that’s a significant sum. But it’s far more achievable than most people realise.
An investor putting aside £450 a month and earning the stock market’s long-run 8% average annual return would reach £313,675 in just shy of 22 years. And it means that anyone starting a bit late in their 40s still has plenty of time to reach this goal.
But for those willing to pick quality individual stocks rather than simply tracking the market, that timeline can shrink dramatically.
Why Games Workshop is such a compelling example
Few companies on the London Stock Exchange illustrate the power of quality compounding better than Games Workshop (LSE:GAW).
Over the last decade, the Nottingham-based miniature wargaming manufacturer has delivered an extraordinary 51.8% average annualised total return. To put that in perspective, anyone drip-feeding £450 a month at this rate of return since 2016 is now sitting on a staggering £1,972,947!
What’s driven such exceptional returns?
The answer is a near-unassailable competitive moat. Games Workshop is the mastermind behind the Warhammer universe – a vast portfolio of intellectual property spanning tabletop games, novels, video games, and now a major licensing deal with Amazon for a Warhammer TV series.
Its fanatically loyal global customer base seems to spend regardless of wider economic conditions. And what’s more, high-margin royalty and licensing income is expanding rapidly, diversifying the business beyond core miniatures businesses.
Is Games Workshop still worth buying in May 2026?
At a market cap of £6.5bn, Games Workshop shares aren’t likely to maintain such a massive growth trajectory. But that doesn’t mean the growth story is over.
Analysts at Peel Hunt and Shore Capital both carry Buy ratings, pointing to the Amazon licensing deal as a potential step-change catalyst that could dramatically expand the Warhammer brand’s global reach over the coming years.
However, the risks deserve attention as well.
With the company investing heavily to expand its manufacturing capacity, and the war in the Middle East disrupting the global supply of petrochemical plastics, Games Workshop’s impressive margins are coming under pressure in 2026. And for a stock that’s long traded at a premium valuation, this opens the door to potential volatility.
Over the longer term, there’s also execution risk to consider with management’s licensing diversification strategy. If the TV adaptation fails to resonate with audiences, Warhammer’s attempt to move into the mainstream could backfire, harming the brand.
The key question is whether management can successfully monetise the Amazon opportunity without compromising the loyal fanbase that made the business great in the first place. And that’s exactly what I’m watching closely.
Nevertheless, I remain optimistic both as a shareholder and a customer. That’s why I’ve already added some shares to my portfolio in my long-term quest to meet and eventually exceed my future retirement income from the State Pension.
