The Market's Verdict Before the Budget

02/10/2026

The verdict is already in

On 1 October the 30-year gilt yield touched 6%, its highest level since 1998, and the FTSE 100 closed down 1.68% at 10,428, its worst day since May. The Chancellor, John Healey, does not deliver his first Budget until 28 October, but the bond market has already given its view on how much room he has to manoeuvre.

That is the real story this week. No single data point matters as much as what the gilt curve, the housing numbers and business sentiment are saying together, which is that UK fiscal credibility is being priced in real time, and every client conversation about income, property and tax planning now sits downstream of that one number.

What moved

30-year gilts reached 6%, the highest since 1998, and the 10-year moved above 5.50% intraday, its highest since 2007, as the curve demands a bigger premium for UK sovereign risk.
The FTSE 100 closed down 1.68% at 10,428.27 on 1 October, with banks, housebuilders and domestic stocks leading the declines and the selling echoed across European indices.
Nationwide reported prices down 0.2% in September, the sharpest monthly fall since May, with annual growth slowing to 0.8% from 1.6% in August, the weakest since December 2025.
Bank of England data put mortgage approvals for house purchase at 54,900, below the six-month average of around 60,100, and EY expects corporate lending growth to more than halve this year, from 5.3% to 2.1%.
The IoD Economic Confidence Index fell to -54 in September from -49 in August, with 65% of business leaders now pessimistic about the UK economy and more than 70% planning to freeze or cut investment over the next year.

None of these moved in isolation.

One story, not five

Higher long gilt yields raise the government's own borrowing costs and feed directly into mortgage pricing, because lenders price fixed-rate deals off swap rates that track the gilt curve, so a 6% 30-year yield shows up in a mortgage offer within weeks rather than months. That goes a long way to explaining why the Nationwide index and the Bank of England approvals data are softening at the same moment the long end is selling off.

The deeper issue is what the yield move is pricing in, which is scepticism about whether Healey's first Budget can raise revenue without repeating the dynamic of the 2022 mini-Budget, when markets punished anything that looked like unfunded spending or a credibility gap with the OBR's forecasts. Healey has restated his commitment to the fiscal rules, but a new Chancellor's first fiscal event, under a new Prime Minister, carries more of that risk than one from a settled government, simply because the market has less of a track record on which to extend the benefit of the doubt.

That is the bind. Every revenue option under discussion, including pension tax relief, capital gains tax, inheritance tax and ISA allowances, is on the table partly because fiscal headroom is already thin, and the yield move has arguably thinned it further by raising the cost of servicing government debt. The IoD print and the housing slowdown show the real economy is already absorbing the cost of that uncertainty, before a single measure has been announced.

For the advice conversation

We see three things worth raising with clients before 28 October.

Income and duration. A 30-year yield at 1998 highs is a real opening for anyone looking to lock in long-dated income, with annuity rates and long-gilt strategies more attractive than they have been in a generation, while the same move hurts anyone holding long duration unhedged, so both sides of that trade deserve a fresh look.
Pre-Budget planning windows. Pension contributions, CGT disposals and IHT gifting are the classic areas where pre-Budget speculation is itself a reason to act early rather than wait, given there is precedent for rule changes taking effect from Budget day rather than from the start of the new tax year.
Property and mortgage clients. With approvals already below trend and rates feeling the gilt move, clients with fixed-rate deals coming to an end or purchases in progress should be having the refinancing conversation now, not in November.

The bottom line

The Budget has not happened yet, but market pricing already reflects a view on it. The point worth making plainly to clients is that the risk is not only what Healey announces on 28 October, it is what the gilt market has already decided to charge in the meantime, and that cost is arriving in mortgage offers and portfolio valuations well before the Budget itself.

This article is market commentary and does not constitute advice on any individual's circumstances. Any client-specific action should go through the usual advice process.