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Plain-English guides to UK Corporation Tax and CT600 filing.

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21 February 2026

HMRC Corporation Tax Online Account: How to Set Up and Use It

Step-by-step guide to setting up your HMRC Corporation Tax online account. Register, activate, and manage your company tax — including how to file your CT600.

HMRCcorporation taxonline accountGovernment Gateway
21 February 2026

Corporation Tax for Freelancers: A Complete Guide for Limited Company Contractors

Corporation tax guide for freelancers with a limited company. Covers allowable expenses, IR35, dividends, and filing your CT600.

corporation taxfreelancercontractorlimited companyIR35
21 February 2026

Company Share Buyback: Tax Treatment Guide

How UK company share buybacks are taxed. Covers income vs CGT treatment, capital distribution conditions, and when to use a share buyback for your limited company.

share buybackcapital distributionCGTcorporation taxincome taxlimited companycompany purchase of own shares
21 February 2026

Director's Loan Account: Tax Implications

Complete guide to director's loan account tax implications. Covers overdrawn DLAs, S455 tax, bed and breakfasting rules, and how to stay compliant with HMRC.

directors loan accountDLAs455corporation taxoverdrawnbed and breakfastinglimited company
21 February 2026

Corporation Tax Penalties & Interest Charges

Understand HMRC corporation tax penalties for late filing and payment, how interest is calculated, and how to appeal. Complete guide for UK company directors.

corporation taxpenaltiesinteresthmrclate paymentappealct600
20 February 2026

CT600 Box by Box Guide: Every Section Explained in Plain English

A complete walkthrough of every CT600 box and section. Understand what each field means, which boxes apply to your company, and how to fill them in correctly.

CT600HMRCcorporation taxtax returnguide
20 February 2026

Corporation Tax for Property Companies: A Complete Landlord Guide

Corporation tax for property companies. Mortgage interest relief, capital gains, allowable expenses, and filing your CT600.

corporation taxproperty companybuy to letlandlordCT600
20 February 2026

Closing a Limited Company — Your Final CT600 and What to Do

Step-by-step guide to closing your limited company. Final CT600, capital distributions, strike-off vs MVL, and the mistakes that cost directors money.

closing companyfinal CT600strike offMVLcorporation taxlimited company
20 February 2026

How to File Your CT600 Without an Accountant — Complete Guide

Step-by-step guide to filing your CT600 without an accountant. What you need, how to calculate tax, and how to avoid mistakes.

CT600self-filingcorporation taxno accountantDIY tax returnsave money
19 February 2026

R&D Tax Relief for Small Companies: What to Claim on Your CT600

R&D tax credits for SMEs: what qualifies, how to calculate the relief, and which CT600 boxes to complete. Plain English guide.

19 February 2026

How to Register for Corporation Tax: Step-by-Step Guide for New Companies

Complete guide to registering your limited company for corporation tax with HMRC. Deadlines, what you need, UTR numbers, and what happens after registration.

19 February 2026

Your First Company Tax Return — A New Director's Guide to CT600 Filing

Just set up a limited company? Everything you need to know about your first CT600 — when it is due, what to include, and how to file.

ct600new companyfirst tax returncorporation taxbeginners
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