Chancellor John Healey confirmed on the 31st of July that the Autumn Budget 2026 will be delivered on Wednesday the 28th of October 2026, with an updated Office for Budget Responsibility forecast published alongside it. It will be his first Budget, and the first major fiscal event of Andy Burnham's premiership.
For UK practices, the date could hardly be more awkward. It sits between the October 31st paper filing deadline, the November 17th Companies House identity verification cut-off, and the run-up to the January Self Assessment season, which this year arrives on top of quarterly updates. The temptation is obvious: park the Budget, deal with the deadlines you can control, and read the summary the morning after.
That is a mistake, and not because you need to predict the Chancellor. It is a mistake because the seven weeks before a Budget are the only window in which certain client decisions can still be made under known rules. Once the Chancellor sits down, the option to act under the current regime is gone for anything with immediate effect.
The single most valuable thing your firm can do this month is draw a hard line between what is legislated and what is rumour. Clients cannot do this for themselves. They read a headline about capital gains tax and phone you in a panic.
Measures that are already confirmed or in force, and therefore safe to plan around, include:
Areas attracting speculation but carrying no confirmed announcement include capital gains tax rates and reliefs, the pension tax-free lump sum, business rates reform, fuel duty, and wider property or land taxation. Current CGT rates for individuals remain 18% and 24%, the annual exempt amount is £3,000, and Business Asset Disposal Relief stands at 18%.
Write that split down. A one page client-facing note headed "confirmed" and "not confirmed" will save your team hours of repeated phone calls and positions the firm as the calm voice in a noisy month.
Every Budget produces two kinds of regret. The first is the client who did nothing and lost a relief. The second, less discussed but far more common, is the client who panicked, crystallised a gain or restructured a portfolio to pre-empt a change that never arrived, and paid tax years earlier than necessary for no benefit at all.
The autumn of 2024 offered a clear lesson in the second category, with significant sums moved in a hurry on the strength of rumour. Your job is not to guess. It is to make sure that where a client is already contemplating a material transaction, they understand the position under current law, the timing implications, and the range of plausible outcomes before Budget day rather than after it.
Early planning does not mean accelerating transactions. It means no client of yours is surprised.
Seven weeks is enough time if you work backwards from the 28th of October.
Not every client needs a pre-Budget conversation, and pretending otherwise will wreck your October. Prioritise:
Most firms give Budget commentary away and then absorb the follow-up calls unpriced. A pre-Budget review is a defined piece of advisory work with a clear deliverable, and it can be priced as one. Even a modest fixed fee changes the conversation from reactive firefighting to planned advisory, which is exactly the shift the profession has been talking about all year.
It also builds naturally on work you are already doing. Firms that spent 2026 getting clients onto digital records now have far better real-time visibility of trading performance and property income than they did two years ago. That data makes a pre-Budget conversation quicker to prepare and considerably more credible.
One practical warning. Budget noise in late October will compete directly with the 17th of November end of the Companies House identity verification transition window, and with your Self Assessment pipeline. Protect those workstreams with separate owners and separate task lists so that Budget commentary does not quietly consume the capacity you allocated to compliance.
A single view of deadlines, tasks and staff workload across the practice is what stops the last week of October from turning into a scramble. If your firm is still tracking these things across separate spreadsheets, this quarter will show you why that does not scale.
Nobody expects you to know what is in the red box. Clients do expect you to know where they stand before it opens, and to reach them before a newspaper does. The firms that come out of October 28th looking authoritative will be the ones that spent September deciding which conversations to have, not the ones refreshing the news feed on Budget morning.
Pick your twenty most exposed clients this week. Book the calls. Everything else about this Budget is out of your hands, and that part is entirely within them.