CT600 software for simple corporation tax returns.
File your CT600 to HMRC with our guided wizard, plus Companies House accounts, free MTD VAT and Self Assessment returns — all in one place.
Everything you need to file with confidence
Built for clarity and precision, designed to save you time.
Multi-Step Wizard
Break down complex financial forms — CT600, Companies House accounts, and VAT returns — into manageable, bite-sized steps. No overwhelming spreadsheets when you file with WeFile.
Auto-Calculations
Profit & loss and balance sheets automatically compute totals and determine your exact liability. Your corporation tax is calculated for you.
Companies House Sync
Search and link your company directly from the official registry to pre-fill critical details and filing dates.
Dormant Support
Haven't traded this year? We support dormant company accounts out of the box with an expedited flow.
How it works
Three simple steps to file your CT600 online without cutting corners.
New to it? See how to file your CT600 online, step by step.
Add Your Company
Search Companies House to instantly sync your registered details and filing dates.
Complete Your Filing
Follow our guided wizard through profit & loss, balance sheet, and tax computation.
Review & Submit
Review auto-calculated figures, generate reports, and submit directly to HMRC and Companies House.
Transparent pricing
No hidden fees. Pay only for what you file.
Dormant Company
- Dormant Company Accounts
- Companies House Filing
- CT600 Nil Return
- Email Confirmation
- Document Storage
Trading Company
- Full CT600 Return
- Supplementary CT600A (s455)
- Supplementary CT600E (Charities & CASCs)
- Profit & Loss + Balance Sheet
- Auto Tax Calculation
- Companies House Filing
- Email Confirmation
- Document Storage
Your company qualifies if it meets at least two of these criteria
You can also file as a micro-entity under FRS 105 if your company qualifies.
See exactly what's covered
Our intelligent wizard supports the core requirements of most UK limited companies, automatically calculating complex relief structures, including full support for supplementary pages CT600A and CT600E.
Company & Return Info (Boxes 1–115)
Latest from the blog
Guidance on Corporation Tax and Companies House compliance.
How to Pay Corporation Tax: Payment Reference, Deadlines and Bank Details (2026 Guide)
How UK limited companies pay Corporation Tax in 2026: the 9 months and 1 day deadline, the 17-character payment reference, HMRC bank details, payment methods, quarterly instalments, interest and what to do if you get it wrong.
Trading Losses for Limited Companies: Carry Forward, Carry Back and the £5m Deductions Allowance
How UK limited companies use trading losses in 2026: current-year relief, 12-month carry back, carry forward against total profits, the £5m deductions allowance, property losses and the exact CT600 boxes (45, 160, 250, 275, 280, 285, 780).
UK Company Formation in 2026: The Complete Guide to Registering a Limited Company
Everything you need to know about registering a UK limited company in 2026: company types, names, directors, shareholders, PSCs, identity verification, share capital, fees, timelines and your first-year obligations to Companies House and HMRC.
Frequently asked questions
What you get with WeFile
One platform for guided CT600 corporation tax returns, Companies House accounts, free MTD VAT filing, and free Self Assessment filing — without spreadsheets or juggling multiple tools.