Expert insights
for UK directors

Learn how associated companies affect corporation tax thresholds, marginal relief and CT600 calculations, and how WeFile handles them automatically.

Understand the Companies House accounts filing changes planned for April 2028, including software filing, iXBRL and profit and loss requirements.

WeFile appears on HMRC's published Corporation Tax commercial software suppliers list. Here is what that listing does and does not mean for your CT600 filing.

Submit amended CT600 returns and Companies House accounts in WeFile, including filings originally completed through another provider or filing system.

Learn who must file a CT600 Company Tax Return, what it includes, key deadlines, software requirements and common questions for UK limited companies.

Use the WeFile AI Assistant for context-aware help with CT600 returns, Companies House filings, tax calculations and platform features.

Learn who must follow Making Tax Digital for VAT, what digital records and submissions involve, and how to stay compliant in 2026.

UK Corporation Tax and CT600 deadlines explained, including Companies House filing dates, late penalties and practical steps to avoid missing them.

What documents you get after preparing a CT600 with WeFile: statutory accounts, the tax computation and the CT600 form in PDF and iXBRL, where to download them and how to use them.