The Autumn Budget is confirmed for Wednesday 28 October 2026, and searches for “what to expect” from it have already started climbing, six weeks out. That’s typical of Budget season, but this year there’s more certainty than usual about what won’t change, which makes it easier for small businesses to focus preparation on the parts that actually might.

The government has been explicit that income tax, VAT, and National Insurance rates are off the table this Parliament, so the headline rate changes that usually dominate Budget-day speculation are largely settled already. That doesn’t mean nothing is moving. It means the more consequential changes for SMEs, the ones that quietly affect cash flow and investment decisions, are the kind that don’t make headlines until they’ve already landed.

What’s already confirmed and takes effect regardless

A few changes are locked in and will apply whatever the Chancellor announces on the day. VAT on household electricity bills drops from 5% to 0% from 1 October 2026, which lands before the Budget itself and is worth factoring into utility cost planning now if your business runs on domestic-rate supply. Capital allowances are also shifting: a lower standard writing-down allowance is being paired with a new 40% first-year allowance for certain assets, which changes the maths on whether it’s worth bringing forward equipment purchases before or after the new rules bite. If you’ve got capital spending planned for this year or next, it’s worth getting an accountant to run both scenarios rather than guessing.

Making Tax Digital for Income Tax also continues expanding regardless of what the Budget says, with the mandatory threshold already set to drop to £30,000 in gross income from April 2027. Sole traders and landlords currently under the current £50,000 threshold should assume they’ll be in scope within two tax years and start getting compatible software in place now rather than scrambling next spring.

What to actually prepare, rather than predict

Trying to guess specific Budget measures six weeks out is mostly wasted effort, since the areas still genuinely open, business rates relief, targeted sector reliefs, and any further capital allowance tweaks, won’t be confirmed until the day itself. The more useful preparation is making sure your business isn’t caught flat-footed by whatever does land, which mostly comes down to record-keeping. Businesses that can pull accurate, up-to-date figures on turnover, costs, and asset purchases within a day of an announcement are the ones that can act on new reliefs or allowances immediately, rather than losing weeks working out if they even qualify.

This is also a reasonable moment to check that your core business documents, contracts, terms of service, employment paperwork, are current, since Budget-adjacent legislation sometimes arrives with knock-on compliance requirements that get missed amid the tax headlines. A service like Smallprint can help keep that kind of legal paperwork current without needing a solicitor on retainer for routine updates. And if your business relies on accurate historical records to make the most of any new allowances, Archive.Partners is worth a look for keeping financial and contractual history organised and retrievable rather than scattered across old email threads and folders.

The takeaway

The rate freezes mean this Budget is less about bracing for shocks and more about being ready to act on the specific reliefs and allowance changes that do land. Get your capital spending plans modelled against the new allowance rules now, confirm where you sit against the shifting Making Tax Digital threshold, and make sure your records are clean enough to move fast on 28 October rather than needing a week to catch up.