United Kingdom Corporate income tax history
Historical year detail
United Kingdom Corporate income tax in 2023
From April 1, 2023, the UK stopped using a single corporation tax rate for non-ring-fence profits and moved to the modern 25% main-rate / 19% small-profits structure with marginal relief in between.
Country
United Kingdom
Series
Corporate income tax
Year
2023
Rate structure
| Period | Structure |
|---|---|
| From April 1, 2023 | Main rate 25%; small profits rate 19%; marginal relief between £50,000 and £250,000 |
Enacting authority
HMRC rates and allowances publication
Corporation Tax rates and allowances
Open legislation sourceInflation-adjusted brackets have not been loaded for this starter record yet.
Primary sources
- Corporation Tax rates and allowancesVerified 2026-05-02
Important disclaimer
This library is for general tax education only. Always verify filing obligations, due dates, and tax consequences against the cited primary source or with a qualified tax professional.