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

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21 February 2026

How to File a Nil CT600 Return for a Dormant Company

Step-by-step guide to filing a nil Corporation Tax return for your dormant limited company. Avoid penalties — even dormant companies must file with HMRC.

CT600dormant companynil returnHMRCcorporation tax
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

Corporation Tax Record Keeping Requirements

What records your UK company must keep for corporation tax. Covers retention periods, digital records, HMRC inspection powers, and penalties for poor record keeping.

corporation taxrecord keepingHMRCcompliancedigital recordslimited companyct600
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

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

Corporation Tax Calculator: How Much Will Your Company Pay in 2025/26?

Free corporation tax calculator. Understand the 19% and 25% rates, marginal relief, and how associated companies affect your bill.

corporation taxcalculatortax ratesmarginal relief
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

How to Reduce Corporation Tax Legally: 12 Strategies for UK Companies

Discover 12 legal ways to reduce your corporation tax bill. From capital allowances to pension contributions, learn how to minimise what your company pays HMRC.

corporation taxtax planninglimited companyallowable expenses
20 February 2026

CT600 Filing Checklist — Everything You Need Before You Start

Complete checklist of every document, figure, and detail you need to file your Corporation Tax return. Print it, tick it off, file in 15 minutes.

CT600checklistcorporation taxfilingdocumentspreparation
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
20 February 2026

Corporation Tax Payment Reference — How to Pay HMRC Correctly

How to construct your Corporation Tax payment reference, HMRC bank details, payment methods, and what to do if you use the wrong reference.

payment referencecorporation taxHMRCUTRpaymentdeadline
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