Every autumn, Martin Lewis reminds Britain of the same uncomfortable truth: most people are leaving free money on the table. Nine months into 2026, the pattern hasn’t changed, even if the numbers behind his best savings accounts have shifted again.

For the past three years, the story of UK savings has tracked the Bank of England’s base rate almost exactly. Back in 2023, when the Bank was in the middle of fourteen consecutive hikes, Lewis’s advice was blunt: banks were paying “diddly squat” on default accounts while headline rates on regular savers touched 8%.

Millions of savers, he warned repeatedly, were sitting on cash earning less than 1% simply because switching felt like effort. That gap between what was available and what people actually earned became something of a signature theme for him, repeated across the Money Saving Expert newsletter, ITV’s Money Show and endless rounds of breakfast television.

The peak came and went. By late 2024 the base rate had plateaued, and Lewis was telling savers the top of the cycle had probably arrived — with the usual caveat that nobody, including him, had a crystal ball.

Fixed rates began drifting down as markets priced in future cuts, while easy-access accounts held up better because they track the current base rate rather than long-term predictions. That divergence is the bit of financial plumbing Lewis has spent the most energy explaining: fixed-rate savings behave like mortgages in reverse, and when the market expects cuts, providers pull their best fixed deals fast.

That’s more or less where things sit today. As of early September, Money Saving Expert’s savings hub has cash ISA best-buys ranging from around 4.6% on easy access up to nearly 4.9% on five-year fixes, with regular savers still offering the highest headline rates for those willing to drip-feed smaller sums each month. Nationwide and First Direct remain fixtures in these tables, much as they were two years ago, usually via linked current-account deals that reward loyalty or switching with a flat cash bonus on top of the interest.

What’s stayed consistent, more than any individual rate, is the underlying advice. Lewis’s approach was never really “find the single highest number and pile in.” It’s closer to a decision tree: check whether you’re a taxpayer likely to breach your Personal Savings Allowance, work out how much you can genuinely lock away without needing it, and only then start comparing products — regular savers for monthly drip-feeding, easy-access for anything you might need at short notice, fixed-rate bonds for lump sums you’re confident you won’t touch, and cash ISAs once the numbers say tax shelter matters more than a fractionally higher headline rate elsewhere.

The other constant is inertia. Every time Lewis revisits the topic, the framing is the same: banks rely on customers not bothering to move their money, and the biggest high-street names are consistently the worst payers on both current and savings accounts. Switching, in his telling, remains one of the few reliably free lunches in personal finance — a five-minute task that can be worth hundreds of pounds a year, and yet one that the vast majority of savers still don’t do.

Looking back over the past three years, what’s notable isn’t any single tip but the durability of the message through a full interest-rate cycle. Rates rose, peaked, and eased, but the gap between the best and worst savings accounts on the high street never closed. If anything, that’s the real story: not what the top rate happens to be this month, but the fact that so many people are still earning nowhere near it.