CT600FilingSwift Catalyst Ltd
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Related Products
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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.
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About
National Tax Office provides a professional tax preparation platform and business tools designed to help tax preparers start, manage, and grow a tax preparation business through a centralized digital platform. It functions as an all-in-one environment that includes tax preparation tools, training resources, support services, and integrated financial products required to operate a tax office. It is available as both a web-based and desktop system, allowing preparers to prepare and electronically file federal and state tax returns for individuals and businesses while maintaining access to current and prior-year forms in one place. It supports unlimited electronic filing and enables tax professionals to work from any location while maintaining control and visibility over their business operations. It includes multiple workflow modes, such as step-by-step interview guidance or direct form-based input.
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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
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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
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Audience
UK limited companies, accountants, sole traders acting through limited companies, and tax professionals.
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Audience
Tax preparers and tax businesses that want a tool to prepare and e-file tax returns while managing clients, documents, and tax office operations
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and Videos |
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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
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Pricing
$199 per month
Free Version
Not Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Company InformationSwift Catalyst Ltd
Founded: 2026
United Kingdom
www.ct600filing.co.uk
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Company InformationNational Tax Office
United States
www.nationaltaxoffice.com
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Categories |
Categories |
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Integrations
No info available.
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Integrations
No info available.
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