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

127 results for “Corporation Tax”Clear search
22 February 2026

Dividend vs Salary: The Most Tax-Efficient Split for 2025/26

How much salary and dividends should you take? We calculate the optimal split for UK limited company directors in 2025/26, including the impact on corporation tax.

dividendssalarycorporation taxtax planninglimited companyCT600
22 February 2026

First Year Corporation Tax: What New Limited Companies Need to Know

Just incorporated? Here's your complete guide to corporation tax in your first year — registration, deadlines, what to file, and how to pay.

corporation taxnew companyfirst CT600limited companyHMRC registration
22 February 2026

How to Pay Corporation Tax: Complete HMRC Payment Guide 2025/26

Step-by-step guide to paying your corporation tax bill. Covers all payment methods, deadlines, payment references, and what happens if you pay late.

corporation taxHMRC paymentpayment referenceCT600tax deadline
22 February 2026

How to Amend a CT600 Tax Return: Correcting Mistakes After Filing

Made an error on your CT600? Learn how to amend your corporation tax return within the 12-month deadline, what changes HMRC allows, and the step-by-step process.

CT600HMRCamendmentscorporation taxtax return corrections
22 February 2026

HMRC Free Filing Is Ending: What to Use Instead

HMRC's free CT600 filing service closes March 2026. Step-by-step guide to choosing a replacement and filing your Corporation Tax return.

hmrcct600free-filingreplacement2026
21 February 2026

CT600 Deadline: When to File Your Corporation Tax Return (and When to Pay)

When is your CT600 due? Filing deadlines, payment deadlines, and how they differ from Companies House deadlines. Avoid late penalties.

21 February 2026

Corporation Tax Losses: How to Carry Forward and Offset Against Future Profits

How to carry forward trading losses on your CT600 to reduce future corporation tax bills. Box references, time limits, and practical examples.

21 February 2026

Dormant Company Corporation Tax: Do You Need to File a CT600?

Find out if your dormant company must file a CT600 with HMRC. When you're exempt, when you must file, and how to submit a nil return.

21 February 2026

VAT Registration and Corporation Tax: How They Interact

Learn how VAT registration affects your Corporation Tax return, including input tax recovery, flat rate scheme profits, and what goes on your CT600.

VATcorporation taxCT600flat rate schemeHMRClimited company
21 February 2026

Corporation Tax Quarterly Instalment Payments: Who Needs to Pay and When

Find out if your company must pay Corporation Tax in quarterly instalments (QIPs), including thresholds, payment dates, and calculation.

corporation taxquarterly instalmentsQIPsHMRClarge companypayment
21 February 2026

How Are Dividends Taxed for Corporation Tax? A Complete Guide

How dividends interact with Corporation Tax — paying dividends, receiving dividends, the dividend exemption, franked investment income, and CT600 reporting for UK companies.

dividendscorporation taxct600franked investment incomedividend exemptionlimited companytax
21 February 2026

Capital Allowances and Corporation Tax: How to Claim Tax Relief on Business Assets

How to claim capital allowances on your CT600 — AIA, writing down allowances, full expensing, first-year allowances, and which assets qualify for Corporation Tax relief.

capital allowancescorporation taxaiawriting down allowancefull expensingct600tax reliefbusiness assets
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