Will the Autumn Budget 2026 back growing SMEs?

Four actions to take before 28 October

A corporation tax cut only helps if you make a taxable profit, and many owner-managed businesses reinvest theirs. Whatever the Budget delivers, you are most likely to feel it through your running costs, your customers, and your tax planning. Tax Director Hannah Magee sets out what we learned from a recent survey to 500 UK business leaders (100 of which were small businesses), and four actions small and medium-sized enterprises (SMEs) should take before 28 October 2026.

Owners of smaller businesses are the least confident of the three size groups we surveyed. Of the 100 we asked, only 46% are confident in the direction of economic policy, and 32% disagree, more than double the share of mid-market leaders. Only 69% of small businesses are planning ahead so they can act quickly once the Budget lands, compared to 89% in the mid-market.

Fewer than a third of businesses below £50 million turnover asked for a simpler tax system (31%) or more investment incentives (28%) in our Censuswide survey, compared with 48% and 38% of mid-market businesses. For businesses below £50 million turnover, help often misses the target.

If you expect little from the Autumn Budget 2026, it is tempting to wait and see. Taking the four actions described below will give you the data to make confident decisions after the Budget.

Capital allowances only help when there is capital spend to claim against. Research and development relief needs documented innovation, and business rates reform only reaches businesses that hold rateable property. A cut in the corporation tax rate only helps where there is taxable profit, and a business reinvesting everything into growth may not have much.

Every business has a meter and a payroll, so measures that cut energy and employer National Insurance costs reach far more of them. In our survey, energy support is the top request (39%) from businesses below £50 million turnover.

Before 28 October 2026: work out what your energy bills and employer National Insurance would cost if relief arrives, or if costs rise.

At £50 million turnover, more of the Budget starts to apply to you

Most mid-market leaders are already preparing: 89% say they are planning ahead so they can move fast. Above £50 million turnover, the Budget is as much about tax planning, and the timing of capital spend as about costs.

Before 28 October 2026: keep managing day-to-day costs while you start planning for corporate tax. Check whether you expect a taxable profit this year and sort your capital plans into those that depend on the Budget and those you have paused out of caution.

Risk arrives through your customers

Large corporates are the group most likely to pull back if the Budget delivers no material relief. In our Censuswide survey, not only would 42% delay or cancel UK capital programmes, and 38% would freeze recruitment or cut hours.

A deferred capital programme is next year’s order book for the contractors and suppliers attached to it. For them, that means lost or postponed work.

Before 28 October 2026: work out how much of your revenue depends on a few large customers with UK capital programmes. Part of your exposure sits on their balance sheet, so a weak Budget can reach you through their spending.

Complexity you can’t measure, you can’t fix

Larger businesses, which tend to have tax functions, advisors and systems, are asking loudest for a simpler tax system. Businesses below £50 million turnover are asking least for a simpler system, but complexity still costs them. In our experience, it’s absorbed into evenings and deferred projects rather than tracked.

The difference is in how the impact is measured. A business that can say what compliance costs in wages or time can make a case for change. A business that experiences it as general friction has nothing to submit. Those designing a simpler tax system will only hear about larger businesses’ problems as a result.

By 28 October 2026: work out what compliance costs your business, in staff time and in fees. Smaller businesses that don't give a figure risk being left out of a simpler system designed around other businesses. And if you don't know what compliance costs you, you can't bring the number down.

How many of these actions you have in hand when the chancellor stands up matters more than how quickly you move on 29 October.