Free, plain-English guidance on every business tax for the 2026/27 year — Corporation Tax, VAT, business rates, CIS, R&D relief and your duties as an employer. When you need a human, we match you with a verified UK specialist at no cost to you.
Whether you run a limited company, work as a sole trader, or employ a team, the tax system reaches your business from several directions at once: tax on profits, tax on sales, tax on premises, tax on the people you pay, and the reliefs that can pull some of it back. The 2026/27 tax year (6 April 2026 to 5 April 2027 for income tax and PAYE; financial year from 1 April 2026 for Corporation Tax) keeps most headline rates steady but brings real change underneath.
Corporation Tax stays at a 25% main rate and a 19% small profits rate, with marginal relief between £50,000 and £250,000 of profit. The VAT registration threshold remains £90,000. The biggest shifts are elsewhere: business rates were reformed from April 2026 into a five-multiplier system with permanently lower rates for retail, hospitality and leisure and a new higher multiplier for the largest properties; the employer National Insurance rate is 15% on earnings above a £5,000 secondary threshold, softened by a £10,500 Employment Allowance; capital allowances change, with the main writing-down allowance falling to 14% and a new 40% first-year allowance; and stricter Construction Industry Scheme anti-fraud rules took effect in April 2026.
This hub gives you a clear, accurate guide to each business tax, with worked examples, filing deadlines, the HMRC forms and services you will use, and links to our free calculators. Everything is free, and when your situation needs a professional, we will match you with a verified UK specialist at no cost. Choose a topic below to begin.
Pick a topic for a full 2026/27 guide — rates, worked examples, filing deadlines, HMRC forms and the questions business owners actually ask.
The 25%/19% rates, marginal relief, allowances, the CT600 and payment dates.
Read guide →The £90,000 threshold, the 20% standard rate, schemes, returns and Making Tax Digital.
Read guide →The 2026 five-multiplier reform, small business relief and how your bill is worked out.
Read guide →CIS deductions of 20%/30%/0%, gross payment status and the 2026 anti-fraud rules.
Read guide →The merged 20% RDEC scheme, ERIS for R&D-intensive SMEs and the 10% Patent Box.
Read guide →PAYE, NIC, benefits and the Apprenticeship Levy — everything you owe as an employer.
Read guide →Operating payroll, the 15% employer NIC, the £10,500 Employment Allowance and RTI.
Read guide →Benefits in kind, Class 1A NIC and the move to mandatory payrolling in 2027.
Read guide →The 0.5% levy, the £3m threshold, the £15,000 allowance and how to spend funds.
Read guide →Specialist hubs for the situations that go further than the everyday.
From April 2026, sole traders and landlords earning over £50,000 must keep digital records and file quarterly for income tax. We explain who is in, the software you need and how to prepare — with the April 2027 extension to £30,000 covered too.
Explore the hub →Income Tax, dividends, the salary-versus-dividend split and National Insurance for directors.
Explore →SDLT, rental profits and property gains for landlords and developers.
Explore →EIS, SEIS, VCT and other reliefs that help companies raise finance.
Explore →Overseas trade, permanent establishments and double-tax treaties.
Explore →Quick answers to everyday business tax questions.
Visit →No sign-up, updated for 2026/27.
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The rates, thresholds, deadlines and reliefs business owners ask about most — answered for 2026/27.
Get free, no-obligation guidance and we'll match you with a verified UK specialist who fits your situation.
Find an expert →UK Tax Hero provides general tax guidance and a free expert-matching service for the 2026/27 tax year. It is not personal tax, legal or financial advice. Figures are based on published HMRC rates and may change. Always confirm details on GOV.UK or with a qualified professional before acting.
