Alphatax

Alphatax

Tax Systems
CT600Filing

CT600Filing

Swift Catalyst Ltd
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About

Alphatax is a comprehensive enterprise corporation tax compliance solution that centralizes raw data collection, automated calculations, cross-reference checks, and validation into an end-to-end workflow for the UK, Ireland, and UAE regimes. It features robust, legislatively up-to-date tax logic with in-built cross-references and proprietary audit-trail capabilities that timestamp and log every change; automated report generation with both standard templates and bespoke configuration options; seamless integration with ERP systems and data sources; real-time collaboration and review tools for controlled sign-off; built-in guidance and contextual help to ensure accuracy; and direct e-filing submission to HMRC or local authorities. With support for multi-jurisdictional computations, country-specific rules, and full version history, Alphatax empowers tax teams to prepare, manage, and submit corporation tax returns with complete confidence and compliance.

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.

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

Tax directors, corporate tax teams and advisory firms needing a solution to manage end-to-end corporation tax compliance across multiple jurisdictions

Audience

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

Support

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

Support

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

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

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

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

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 Supported
In Person Supported

Training

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

Company Information

Tax Systems
Founded: 1991
United Kingdom
www.taxsystems.com/what/corporate-tax-software/

Company Information

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

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Categories

Corporate Tax Supported
Tax Compliance Supported

Categories

Corporate Tax Supported

Integrations

No info available.

Integrations

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