What the UK Budget 2026 means for small businesses
Most small businesses face no change in their headline tax rates. What changes is the detail around them: when relief arrives, what gets reported and how. The questions worth asking depend on how the business is set up.
If you run a limited company or are a company director
Corporation Tax stays at 25% for the main rate and 19% for small profits, confirmed for the financial year starting 1 April 2028. The only rate change is for banks, whose surcharge doubles from 3% to 6% between 1 January 2027 and 31 March 2028.
Dividend tax rates are unchanged at this Budget, with the ordinary and upper rates staying at 10.75% and 35.75% after April 2026’s increase. The longer-term item for directors is a modernised framework for company distributions, due from April 2028. The government says genuine changes of ownership, including family successions, will keep capital treatment, but draft legislation isn’t expected until 2027. Anyone weighing a share buyback, capital reduction or reorganisation should build that into their profit extraction planning for directors.
On R&D tax relief, the Claim Notification Form is removed for claims made on or after 1 April 2027, and the Additional Information Form will be simplified from autumn 2027. For employee share schemes, the CSOP option limit rises to £120,000 from 6 April 2027 and the EMI exercise window after a disqualifying event extends to 180 days.
If you are a sole trader or freelancer
The trading allowance triples from £1,000 to £3,000 from 6 April 2027, and the Self Assessment reporting threshold for trading income moves with it (HMRC). Someone earning a few thousand pounds from a side business may no longer need to declare it, although claiming the allowance means giving up the deduction for actual expenses.
Mileage changes too. The 55p rate for the first 10,000 business miles in a car or van, brought in earlier in 2026 as a temporary measure, is being made permanent. Above 10,000 miles, the rate rises from 25p to 35p from 6 April 2027. The changes cover both employees’ approved mileage payments and the simplified rates used by the self-employed, and will be set by statutory instrument.
If you join Making Tax Digital for Income Tax in April 2027, no late submission penalty points will apply to quarterly updates in 2027-28. From April 2029, people who make payments on account will move to smaller, more regular payments. Both are worth noting alongside your usual Self Assessment deadlines.
If you employ staff
National Insurance rates are unchanged, and most thresholds stay frozen until 2030-31, set through the usual secondary legislation in early 2027. The National Living Wage and National Minimum Wage rise by 3.9%.
The bigger administrative change is mandatory payrolling of benefits in kind. From 6 April 2027, company cars, vans, fuel and medical benefits must be reported through payroll, with most other benefits following on 6 April 2028 (HMRC). Also from April 2028, new benchmark subsistence rates apply and the £2,500 Self Assessment threshold for employment expense claims is removed. If you run payroll in-house, check your software is ready well before April, or weigh up whether outsourced payroll would be simpler.
If you are planning to invest in equipment
The main rate first-year allowance rises from 40% to 50% for expenditure incurred on or after 1 January 2027. The main pool writing-down allowance falls from 14% to 12% from 1 April 2027 for companies and 6 April 2027 for unincorporated businesses (HMRC).
Full expensing continues, so many companies buying new, qualifying plant and machinery may barely notice the lower pool rate. The £1 million Annual Investment Allowance also stays, which already gives most smaller businesses 100% relief on qualifying spending. The changes bite where neither of those reaches.
Who should pay particular attention to the capital allowance changes?
Companies buying second-hand equipment are the clearest group. Used assets don’t qualify for full expensing or first-year allowances, so they go straight into the pool at the lower rate. Sole traders and partnerships can’t use full expensing, so any spending above the Annual Investment Allowance relies on the 50% first-year allowance for new assets and the pool for the rest. Equipment-heavy businesses with large existing pool balances will see slower write-offs from April 2027 even if they buy nothing new. Cars generally sit outside both the Annual Investment Allowance and these first-year allowances, so they follow their own rules.
Timing is where the planning sits. For spending that relies on the first-year allowance, buying on or after 1 January 2027 rather than in December lifts it from 40% to 50%. Accounting periods that straddle the April 2027 change may use a blended pool rate, so your year-end matters as well. Whether an asset qualifies depends on what it is, whether it is new and how it is financed, which is exactly the kind of question business tax planning should settle before you commit.