Keeping on top of tax rules is one of the harder parts of running a small or medium-sized business, and the last couple of years have brought more change than most. Following the Autumn Budget on 26 November 2025 and the arrival of Making Tax Digital for Income Tax in April 2026, many business owners are understandably unsure where they now stand. Getting this right matters, both for staying compliant and for protecting your margins.
This post sets out where things actually stand for SMEs in 2026, cutting through the noise. We look at what has genuinely changed, how it affects day-to-day running costs and planning, the funding and support currently available, and the practical steps worth taking now. The aim is to give you a clear, accurate picture rather than a list of headlines.
What has actually changed
The first thing to clear up is a common misconception. Corporation Tax is not rising. The main rate has been 25% since April 2023 for companies with profits above £250,000, and the government has committed to holding it there for the rest of this Parliament. Smaller companies with profits up to £50,000 continue to pay the 19% small profits rate, with marginal relief tapering the effective rate in between. That structure is unchanged for the 2026/27 financial year.
Where costs have moved is elsewhere. From April 2025, employer National Insurance rose from 13.8% to 15%, and the threshold at which employers start paying it dropped sharply from £9,100 to £5,000 a year. To soften the blow for smaller employers, the Employment Allowance increased to £10,500 and the previous £100,000 eligibility cap was removed, so more businesses can now offset that first slice of their NIC bill. These figures carry through to 2026/27.
The Autumn Budget 2025 added further measures. Dividend tax rates rise by two percentage points from April 2026, taking the basic rate to 10.75% and the higher rate to 35.75%, though the £500 dividend allowance stays in place. Income tax and National Insurance thresholds remain frozen until April 2031, which quietly pulls more income into higher bands as wages rise. The National Living Wage for those aged 21 and over rises to £12.71 an hour from April 2026. And on capital investment, while full expensing and the £1 million Annual Investment Allowance both remain, the main rate of writing-down allowances falls from 18% to 14% from April 2026, reducing the relief available on longer-term asset purchases.
What this means for your business
For any SME with employees, the biggest practical impact is on the cost of employment. With the 15% rate now applying from just £5,000 of earnings, even modest salaries carry a meaningful NIC cost, and hiring decisions deserve closer modelling than they used to. The larger Employment Allowance genuinely helps, particularly for smaller teams, and it is worth making sure you are claiming everything you are entitled to.
For company directors, the rising dividend tax rate from April 2026 makes the balance between salary and dividends worth revisiting before the new tax year begins. For businesses planning to invest in equipment or machinery, the reduction in writing-down allowances is a reason to think about timing, since bringing qualifying expenditure forward while the more generous reliefs still apply can make a real difference to your tax position.
Making Tax Digital is now a reality
Making Tax Digital has moved from something on the horizon to something in force. MTD for VAT has applied to all VAT-registered businesses since April 2022, requiring digital records and quarterly returns through compatible software. The significant change now is MTD for Income Tax, which became mandatory from 6 April 2026 for sole traders and landlords whose gross income from self-employment and property exceeds £50,000.
It is important to understand that this test is based on gross income, not profit, and that it replaces the annual Self Assessment return with quarterly updates plus a final declaration. The threshold drops to £30,000 from April 2027 and £20,000 from April 2028, so many more businesses will be drawn in over the next couple of years. There are no late submission penalties for quarterly updates during the first year, giving those affected some room to adjust. Companies and most partnerships are not yet in scope, and no date has been set for extending MTD to Corporation Tax.
Funding and support worth knowing about
Alongside the tax changes, there is genuine support available for businesses looking to invest and grow. The main government-backed route is now the Growth Guarantee Scheme, the successor to the Recovery Loan Scheme, which has been extended to run until March 2030. It supports facilities of up to £2 million through accredited lenders, with a 70% government guarantee to the lender, and is open to trading businesses with turnover under £45 million. For newer businesses, the Start Up Loans programme offers personal loans of between £500 and £25,000 per founder, at a fixed 6% rate, together with free mentoring.
Research and development remains well supported through the tax system. Most companies can claim a cash credit under the merged R&D Expenditure Credit scheme, and loss-making, research-intensive SMEs may claim more generously under Enhanced R&D Intensive Support. The Autumn Budget 2025 also confirmed full funding for apprentices under the age of 25 in smaller businesses, which helps offset rising wage costs. Beyond these, grants continue to be offered through Innovate UK and local growth hubs, though they tend to be competitive and tied to specific activities such as innovation, exporting or job creation. As eligibility and deadlines vary, it is worth checking current availability before committing to any plan.
Staying compliant and efficient
Compliance has become both more digital and less forgiving of slips. With MTD expanding and HMRC investing in real-time data, keeping accurate, well-organised records throughout the year is no longer optional. Late Corporation Tax return penalties have doubled to £200, and from April 2026 HMRC will begin collecting tax on directors’ dividends closer to real time through PAYE codes, which will affect cash flow for many owner-managed businesses.
The practical response is straightforward. Move to compatible software if you have not already, separate business and personal banking, and reconcile regularly rather than leaving everything to year end. Good systems do more than keep you compliant. They give you a clear, running view of your tax position, so there are fewer surprises and more opportunity to act on reliefs while they still apply.
Proactive planning for the year ahead
With so much shifting, a forward-looking approach pays off. For directors, reviewing your salary and dividend mix before the April 2026 dividend tax rise is a sensible starting point, as is making full use of the Employment Allowance where you qualify. For businesses investing in assets, planning the timing of that expenditure around full expensing and the Annual Investment Allowance can protect valuable relief before writing-down allowances reduce.
Beyond that, pension contributions remain a tax-efficient way to extract value, R&D claims are worth exploring if you carry out qualifying work, and owners thinking further ahead should be aware that Business Asset Disposal Relief, which applies when you sell a qualifying business, now carries an 18% rate rather than the 10% of a couple of years ago. An annual review with your accountant, rather than a scramble each January, is the simplest way to keep all of this working in your favour.
In summary
The tax landscape facing SMEs in 2026 is more about steadily rising costs and tighter digital compliance than dramatic headline changes. Corporation Tax is stable, but employer National Insurance, dividend tax and frozen thresholds all add up, and Making Tax Digital is now a live obligation for many. By understanding where you actually stand and planning ahead, you can stay compliant, control costs and make the most of the reliefs and funding still on offer.
At Studholme Bell, we help SMEs navigate exactly this kind of change, from day-to-day compliance and payroll to proactive tax planning and funding decisions. If you would like to understand what the current rules mean for your business and how best to position yourself for the year ahead, please get in touch. We would be glad to help you make informed, confident decisions about your finances.
