Company Year End: 31 March vs Other Dates — How It Affects Your CT600
Does your company year end matter for corporation tax? Yes. Here's how 31 March simplifies your CT600 filing, and what happens with other year-end dates.
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Plain-English guides to UK Corporation Tax and CT600 filing.
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Limited Company Director Salary 2025-26 — The Optimal Amount to Pay Yourself
What salary should a limited company director take in 2025-26? We break down the optimal salary level to minimise tax, including NI thresholds and corporation tax impact.
CT600 Marginal Relief Explained — How to Calculate Corporation Tax 2024-25
Marginal relief reduces corporation tax for companies with profits between £50,000 and £250,000. Learn how it works, how to calculate it, and how it appears on your CT600.
CT600 Filing for First-Time Directors — Complete Beginner Guide
New company director? This beginner-friendly guide explains CT600 corporation tax returns: what they are, when to file, what you need, and how to do it yourself.
How to File CT600 Online After HMRC Free Service Closes
Step-by-step guide to filing your CT600 corporation tax return online using commercial software after HMRC discontinues its free filing service in March 2026.
HMRC Free CT600 Filing Is Ending March 2026 — What You Need to Do Now
HMRC is closing its free Corporation Tax filing service on 31 March 2026. Here's what this means for your company and the cheapest alternatives.
Corporation Tax Rates 2025/26: Complete UK Guide
All UK Corporation Tax rates for 2025/26 including small profits rate, main rate, marginal relief, and associated company rules. With worked examples.
Year-End Tax Planning: 7 Ways to Reduce Your Corporation Tax Before Filing
Legitimate strategies to reduce your Corporation Tax bill before your year-end. Pension contributions, capital allowances, salary timing, and more.
Sole Trader vs Limited Company Tax: Which Saves You More in 2025/26?
Complete tax comparison between sole trader and limited company structures. Income tax vs corporation tax, national insurance, dividends, and the crossover point.
10 CT600 Mistakes That Get Your Return Rejected by HMRC
The most common CT600 filing mistakes that cause HMRC rejections. Learn what to avoid so your Corporation Tax return gets accepted first time.
Sole Trader vs Limited Company: Tax Comparison 2025/26
Detailed tax comparison between operating as a sole trader vs limited company in 2025/26. Income Tax vs Corporation Tax, National Insurance, dividends, and when to incorporate.
HMRC Government Gateway for Corporation Tax: Setup & Navigation Guide
Step-by-step guide to setting up and using HMRC Government Gateway for Corporation Tax. How to register, enrol for CT, view your account, and manage your tax.