No. 30of 109 ·Tax Compliance Software

IRIS Business Tax

Windows · Self-hosted

Freedom report

One barScore 6.3

Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

IRIS Business Tax is ranked #30 of 109 in tax compliance software on Freedom251, made by IRIS Business Tax (4th Floor, Heathrow Approach, 470 London Road, Slough, SL3 8QY). It runs on Self-hosted, Windows.

IRIS Business Tax plans and pricing

All plans

IRIS Business Tax Standalone module or part of IRIS Accountancy Suite · self-hosted desktop or hosted with IRIS Anywhere iris.co.uk · 4 Oct 2026

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The record

Purpose: Business Tax prepares tax computations and returns for corporate clients, partnerships, sole traders and other client types.
HMRC filing: The software can file tax documents directly to HMRC and track submission status.
Automatic calculations: It calculates capital allowances, vehicle allowances using an integrated CO2 emissions database, enhanced R&D, losses and capital gains tax.
HMRC updates: IRIS says the software reflects the latest HMRC legislation without requiring users to update settings manually.
iXBRL: The product includes automated iXBRL tagging for tax computations, including extended period computations.
Integrations: It integrates with IRIS Accounts Production, Personal Tax, Practice Management, Time and Fees, Company Secretarial and OpenSpace.
Data entry: When combined with IRIS Accounts Production, it can pull accounts data into a universal client record and populate tax returns automatically.
Deployment: Business Tax is available as a self-hosted desktop solution or hosted through IRIS Anywhere.
Standalone use: The Business Tax module can be used without purchasing the full IRIS Accountancy Suite.
Who it is for: IRIS describes Business Tax as software for accountancy practices handling business tax compliance for clients.
Support: Customers can use the IRIS Business Tax Help Centre or contact support by email at [email protected] or by phone at 0344 815 5555.
Pricing and purchase: The product page directs prospective buyers to contact IRIS to arrange a demo or discuss purchasing; it does not state a price.
Company history: IRIS says accountant David Guest founded the company in 1978 to make tax compliance easier for accountants.

Where it ranks on Freedom251

Best Tax Compliance Software in 2026#30 of 109

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Sources

iris.co.uk/products/iris-business-tax/· checked 4 Oct 2026
iris.co.uk/about/story/· checked 4 Oct 2026