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

Spectrum Cloud Enterprise is a cloud-based tax compliance platform for businesses managing multiple GST registrations. It supports GST return preparation and filing, input tax credit reconciliation, e-invoice and e-way bill reconciliation, GST notice tracking, and reporting across GST registrations associated with a PAN. The platform also supports income tax return preparation using AIS, TIS, and Form 26AS data, plus TDS processing and compliance. Role-based access, centralized dashboards, and ERP connections help corporate finance teams, accountants, and tax professionals coordinate work across branches and entities. A companion mobile app provides access to GST, income tax, and TDS information, return status, and notices. Designed for Indian tax workflows, Spectrum Cloud is available through web and mobile access.

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 Supported
iPad Supported
Android Supported
Chromebook Not Supported

Audience

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

Audience

CAs, Accountants, GSTPs, Tax Practitioners, Corporates, SMEs & Enterprises

Support

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

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not 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 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 Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

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

Company Information

KDK Software
Founded: 2006
India
www.kdksoftware.com/spectrum-cloud-for-enterprise/

Alternatives

BrightTax

BrightTax

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Alternatives

KDK Spectrum

KDK Spectrum

KDK Software
BTCSoftware

BTCSoftware

Bright
TaxbasePro

TaxbasePro

Sinewave
UFileT2

UFileT2

UFile

Categories

Corporate Tax Supported

Categories

Corporate Tax Supported

Integrations

Busy Accounting Software Not Supported
Oracle Fusion Cloud ERP Not Supported
SAP S/4HANA Not Supported
TallyPrime Not Supported
Zoho Books Not Supported

Integrations

Busy Accounting Software Supported
Oracle Fusion Cloud ERP Supported
SAP S/4HANA Supported
TallyPrime Supported
Zoho Books Supported
Claim CT600Filing and update features and information
Claim CT600Filing and update features and information
Claim Spectrum Cloud Enterprise and update features and information
Claim Spectrum Cloud Enterprise and update features and information