CT600Filing

CT600Filing

Swift Catalyst Ltd
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About

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.

About

K1x is the leading data distribution platform for alternative investments. The fintech company's patented, AI-powered SaaS solution digitizes and distributes IRS Schedules K-1, K-3, and 990 data seamlessly–connecting investors, advisors, tax software, portals, accounting firms, IRS and state taxing authorities–simplifying complex processes, accelerating filings, reducing costs, and delivering greater control, transparency, and accessibility. K1x is trusted by more than 8000 organizations including 44 of the 100 largest institutional investors in the US, 15 of the top 25 accounting firms, 11 of the top 100 private foundations, 36 of the top 100 university endowments, and 8 of the top 40 health systems. The only patented, AI-powered platform that streamlines alternative investment data distribution for investors and advisors. The platform is designed to benefit tax directors, CPAs, investors, and CFOs.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

UK limited companies, accountants, sole traders acting through limited companies, and tax professionals.

Audience

Investors and traders needing a tool to manage and streamline their investing operations

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

£49/filing
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 Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Supported

Company Information

Swift Catalyst Ltd
Founded: 2026
United Kingdom
www.ct600filing.co.uk

Company Information

K1x
Founded: 2022
United States
k1x.io

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Categories

Corporate Tax Supported

Categories

AI Tax Supported
Corporate Tax Supported

Integrations

No info available.

Integrations

No info available.
Claim CT600Filing and update features and information
Claim CT600Filing and update features and information
Claim K1x and update features and information
Claim K1x and update features and information