Plain-English guides to the tax rules that actually affect your business — Making Tax Digital, corporation tax, dividends, and the HMRC deadlines worth putting in your calendar. Written by our Glasgow team, updated for the 2026/27 tax year.
Understanding the upcoming mandatory digital record keeping rules and quarterly submission standards for landlords and sole traders.
Explore the optimal split between salary and dividends under current tax rates to reduce personal tax liabilities.
With the main corporation tax rate at 25% for profits above £250,000, understand how marginal relief affects medium businesses.
2026 / 2027 Calendar
Second payment on account for individual tax year 2025/2026.
Deadline to register for Self-Assessment if you became self-employed or had new untaxed income.
Midnight deadline for submitting paper self-assessment returns.
Submit tax return online to have outstanding tax collected via PAYE tax code (eligibility criteria apply).
Midnight deadline for online Self-Assessment tax submissions and final balance payments.
Final day of the 2026/2027 tax year. Ensure ISA allowances and pension reliefs are maximized.
