How UK companies cut taxable profit — allowable expenses, the wholly-and-exclusively test, capital allowances, the £1m AIA, full expensing and what’s disallowed.
Accounting · Topic
UK Tax — Page 2
Expert guides, analysis and tool comparisons on UK Tax from the kurums.com Accounting desk — written for business decision-makers and updated as the market moves.
- 25 guides
- Updated Jun 20, 2026
All guides · page 2
UK R&D Tax Credits: The Merged Scheme & ERIS Explained (2025/26)
How UK R&D tax credits work after the April 2024 merger — the 20% expenditure credit, ERIS for intensive SMEs, qualifying costs, the PAYE cap and tighter HMRC scrutiny.
UK Corporation Tax Rates & Marginal Relief Explained (2025/26)
UK corporation tax rates for 2025/26 — the 19% and 25% bands, how marginal relief produces a 26.5% effective rate, associated companies and planning around the thresholds.
UK VAT Rates Explained: Standard, Reduced, Zero-Rated & Exempt (2025/26)
The UK VAT rate structure — standard, reduced, zero-rated and exempt — explained, including why the zero-rated versus exempt distinction is so important for businesses.
How to Reclaim VAT in the UK: Input Tax, Blocks & Reliefs (2025/26)
How UK businesses reclaim input VAT — what you can and can’t recover, the invoice evidence HMRC requires, partial exemption, and pre-registration and bad-debt relief.
Making Tax Digital for VAT: Rules, Software & Penalties (2025/26)
What Making Tax Digital for VAT requires — digital records, compatible and bridging software, digital links, and the points-based penalty system explained.
UK VAT Registration: The £90,000 Threshold & VAT Schemes (2025/26)
The £90,000 UK VAT registration threshold explained, plus voluntary registration and the Flat Rate, Cash Accounting and Annual Accounting schemes for smaller businesses.
How UK VAT Works: Rates, Input Tax & Output Tax Explained (2025/26)
How UK VAT works in 2025/26 — the 20% standard rate, output and input tax, zero-rated versus exempt supplies, and why the final consumer bears the cost.
UK National Insurance Contributions: Classes, Rates & Thresholds (2025/26)
How UK National Insurance works in 2025/26 — the classes, the 8%/15%/6% rates for employees, employers and the self-employed, and how NIC builds your state pension.
UK Self Assessment Tax Return: Who Files, Deadlines & Penalties (2025/26)
Who needs to file a UK Self Assessment return, the key deadlines, how payments on account work and the penalties that make late filing costly.
UK Personal Allowance & Tax-Free Thresholds Explained (2025/26)
The £12,570 Personal Allowance and the other tax-free thresholds — savings, dividend, trading, property and Marriage Allowance — that UK taxpayers can stack.
What Is PAYE? How UK Pay As You Earn Tax Works (2025/26)
How the UK PAYE system deducts tax and National Insurance from your wages, what your tax code means, how RTI works and how to reclaim overpaid tax.