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

184 results for “ct600”Clear search
21 February 2026

Do I Need an Accountant for Corporation Tax? When DIY Makes Sense

Find out whether you need an accountant for corporation tax or can file your CT600 yourself. Honest guide for UK limited company directors.

corporation-taxaccountantct600diylimited-companymicro-entity
21 February 2026

The Cheapest Way to File Your CT600 in the UK (2026)

Compare every option for filing your CT600 — from accountants to DIY software — ranked by cost. Find the cheapest way to file your company tax return.

ct600corporation-taxcost-comparisonfilinguk2026
21 February 2026

Taxfiler vs Taxpipe: Which CT600 Software Is Better for Your Company?

Compare Taxfiler and Taxpipe for CT600 filing — features, pricing, ease of use, and which suits your limited company best.

ct600comparisontaxfilertaxpipecorporation-taxsoftware
21 February 2026

Director's Loan Account and Corporation Tax: What You Need to Know

Understand how a director's loan account affects your corporation tax, including the S455 charge at 33.75%, repayment rules, and CT600 reporting.

directors loan accountS455 taxcorporation taxDLACT600
21 February 2026

Corporation Tax Refund: How to Get Money Back If You Overpaid HMRC

Overpaid corporation tax? Learn how to claim a refund from HMRC, amend your CT600, and understand timelines for getting your money back.

corporation taxrefundoverpaymentHMRCCT600
21 February 2026

CT600 Nil Return: How to File When Your Company Has No Trading Activity

Learn how and when to file a CT600 nil return for a dormant or non-trading company, including deadlines, penalties, and step-by-step guidance.

ct600nil-returndormant-companycorporation-taxhmrc
21 February 2026

How to Use HMRC Government Gateway to File Your CT600

Step-by-step guide to setting up and using your HMRC Government Gateway account to file your CT600 Corporation Tax Return online.

ct600hmrcgovernment-gatewaycorporation-taxfiling
21 February 2026

Corporation Tax on Overseas Income: Guide

How UK companies pay corporation tax on overseas income. Covers foreign trading profits, dividends, rental income, double taxation relief, and CT600 reporting.

corporation taxoverseas incomeforeign incomedouble taxation reliefCT600UK companyinternational tax
21 February 2026

Disallowable Expenses for Corporation Tax (Full List)

Which expenses can't you deduct on your CT600? Complete guide to disallowable expenses for corporation tax — entertaining, fines, personal costs, and more.

corporation taxdisallowable expensesct600allowable expenseshmrctax deductions
21 February 2026

Overdrawn Director's Loan Account & S455 Tax Explained

Owe money to your company? Learn how an overdrawn director's loan account triggers S455 tax on your CT600, how much you'll pay, and how to get it back.

directors loans455corporation taxct600overdrawn loanclose companyhmrc
21 February 2026

Pension Contributions & Corporation Tax Relief

How employer pension contributions reduce your CT600 corporation tax bill. Limits, timing rules, and how to claim the deduction for your limited company.

pension contributionscorporation taxct600employer pensiontax relieflimited companyhmrc
21 February 2026

Close Company Rules & Corporation Tax Explained

Is your limited company a close company? Learn what it means for corporation tax, S455 tax on loans, and how it affects your CT600 filing.

close companycorporation taxct600s455participatorlimited companyhmrc
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