Audience
UK limited companies, accountants, sole traders acting through limited companies, and tax professionals.
About CT600Filing
CT600Filing is online Corporation Tax filing software for UK limited companies and accountancy practices. It guides users through a CT600 return, calculates Corporation Tax as figures are entered, and supports supplementary schedules such as capital allowances and R&D claims. The service generates iXBRL accounts using FRS 102 or FRS 105, or accepts accounts prepared elsewhere, then submits CT600 returns to HMRC and annual accounts to Companies House through their filing gateways. Users can prepare returns before paying, with one-off pricing per accounting period and plan options based on company size; accountant credit bundles are also available. A multi-company workspace provides filing status, deadlines, and submission history for client or group entities. The product runs online without desktop installation and serves company directors, bookkeepers, accountants, and tax professionals handling UK Corporation Tax filings.
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Pricing
Starting Price:
£49/filing
Pricing Details:
Dormant & Nil Return: £49 + VAT per accounting period for a nil CT600 only. Micro: £79 + VAT; Small: £159 + VAT; Full Accounts: £299 + VAT per accounting period. Accountant bundles range from £399 + VAT for 10 credits to £1,099 + VAT for 100 credits (£10.99 per filing at 100 credits). Preparation is free; payment is due at submission. No subscription.
Free Version:
Free Version available.
Integrations
API:
Yes, CT600Filing offers API access
No integrations listed.
Company Information
Swift Catalyst Ltd
Founded: 2026
United Kingdom
www.ct600filing.co.uk
Videos and Screen Captures
CT600 filing screen for declaration approval, with fields for board approval date, signer, and company position.
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Product Details
Platforms Supported
Cloud
Training
Documentation
Support
Online
