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

123 results for “Corporation Tax”Clear search
21 February 2026

Company Formation & Corporation Tax Registration

Step-by-step guide to registering for Corporation Tax after forming a limited company. Covers CT41G, UTR numbers, deadlines, and first CT600 filing.

corporation-taxcompany-formationregistrationct600hmrcnew-company
21 February 2026

Corporation Tax Year-End Planning: 12 Tips

Reduce your corporation tax bill before year end. 12 practical planning tips for UK limited companies — from pension contributions to capital allowances and loss relief.

corporation taxyear-end planningtax planninglimited companyallowable expensescapital allowancespension contributions
21 February 2026

Corporation Tax for Small Businesses: 2026

Complete 2026 guide to corporation tax for small businesses. Covers rates, allowable expenses, filing deadlines, payment dates, and tips to reduce your tax bill legally.

corporation taxsmall business2026limited companyCT600small profits ratetax guide
21 February 2026

Corporation Tax Refund: How to Claim Back Overpaid Tax from HMRC

How to claim a corporation tax refund from HMRC. Covers overpayment, amended returns, loss carry-back, and how long refunds take.

corporation taxHMRCrefundoverpaymentCT600
21 February 2026

Corporation Tax on Cryptocurrency: How to Report Bitcoin & Crypto on Your CT600

How UK companies pay corporation tax on crypto. Buying, selling, mining, staking, DeFi, and NFTs — what goes on your CT600.

corporation taxcryptocurrencybitcoinct600hmrccrypto taxcapital gainstrading
21 February 2026

Company Struck Off or Dissolved? You May Still Need to File a CT600

Company struck off or dissolved? You may still owe corporation tax. When a final CT600 is required and how to restore a company.

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21 February 2026

Every Corporation Tax Relief Available to UK Companies (2025/26 Complete List)

Every corporation tax relief for UK companies in 2025/26 — R&D, creative industry, patent box, capital allowances, and more.

corporation taxtax reliefallowancesr&dpatent boxcreative industriesct600hmrc
21 February 2026

Non-UK Company Trading in the UK? When You Need to Pay Corporation Tax

Non-UK company with UK activities? When you must register for corporation tax, file a CT600, and what counts as a permanent establishment.

ct600non-uk companypermanent establishmentcorporation taxhmrcoverseas companyinternational tax
21 February 2026

Company Cars & Corporation Tax: Capital Allowances, BIK, and CT600 Treatment

How company cars affect corporation tax. Capital allowances for cars, benefit in kind rules, and CT600 treatment.

corporation taxcompany carbenefit in kindcapital allowancesct600electric vehiclelease
21 February 2026

Can't Pay Your Corporation Tax? How to Set Up an HMRC Payment Plan

Can't afford your corporation tax bill? Learn how to set up an HMRC Time to Pay arrangement and avoid penalties.

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21 February 2026

CT600 for Contractors: Filing When You're Inside or Outside IR35

How IR35 status affects your CT600. Practical guide for contractors filing corporation tax — inside IR35, outside IR35, or mixed.

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21 February 2026

Just Incorporated? Your First CT600 Timeline: Key Dates You Can't Miss

New limited company timeline: when to register for corporation tax, your first accounting period, CT600 deadline, and payment date.

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