CT600 Filing for First-Time Directors: Complete Beginner's Guide
Never filed a CT600 before? This step-by-step guide explains everything first-time directors need to know — deadlines, documents, iXBRL, and how to file for £59.
Plain-English guides to UK Corporation Tax and CT600 filing.
Never filed a CT600 before? This step-by-step guide explains everything first-time directors need to know — deadlines, documents, iXBRL, and how to file for £59.
HMRC's free filing service closes March 2026. Here's exactly how to file your CT600 corporation tax return online in 2026 — step by step, with tips and common mistakes to avoid.
Not sure which CT600 supplementary pages to file? This guide explains each page — CT600A to CT600J — and tells you exactly which ones your company needs.
Full expensing lets your company deduct 100% of qualifying plant and machinery costs immediately. Here's who qualifies, what's included, and how to claim on your CT600.
Corporation tax rates for 2025/26: 19% small profits rate, 25% main rate, and marginal relief in between. Includes worked examples and thresholds.
HMRC requires iXBRL for CT600 accounts and tax computations. What is it, why does it matter, and how do you create it? Plain English guide for directors.
Overpaid corporation tax? Learn how to claim a refund from HMRC, how long it takes, and what to do if your refund is delayed.
Everything you need to know about filing your company's annual accounts at Companies House — deadlines, formats, micro-entity vs small company, and penalties.
Just incorporated? Here's your complete guide to corporation tax in your first year — registration, deadlines, what to file, and how to pay.
Step-by-step guide to paying your corporation tax bill. Covers all payment methods, deadlines, payment references, and what happens if you pay late.
HMRC's free CT600 filing service closes March 2026. Step-by-step guide to choosing a replacement and filing your Corporation Tax return.
Complete walkthrough of every CT600 box from 1 to 620. Plain English explanations, what to enter, and which boxes most small companies actually use.