IRIS Business Tax
IRIS Business Tax is tax compliance software for accountancy practices preparing computations and returns for corporate clients, partnerships, sole traders, …
What IRIS Business Tax is
IRIS Business Tax is tax compliance software for accountancy practices preparing computations and returns for corporate clients, partnerships, sole traders, and other client types. It can file tax documents directly to HMRC and track submission status. The software calculates capital allowances, vehicle allowances using an integrated CO2 emissions database, enhanced R&D, losses, and capital gains tax. It includes automated iXBRL tagging for tax computations, including extended-period computations, and IRIS says it reflects current HMRC legislation without requiring users to adjust settings manually. With IRIS Accounts Production, the software can pull accounts data into a universal client record and populate tax returns automatically. It also integrates with other IRIS practice products, including Personal Tax, Practice Management, Time and Fees, Company Secretarial, and OpenSpace. Business Tax can be deployed as a self-hosted desktop solution or hosted through IRIS Anywhere, and may be used without the full IRIS Accountancy Suite. Pricing is available on request.
Good
- Files tax documents directly to HMRC.
- Tracks submission status.
- Automates iXBRL tagging.
- Can populate returns from accounts data.
- Available self-hosted or through IRIS Anywhere.
Watch out
- Pricing is available on request.
- Some data automation requires IRIS Accounts Production.
Who it suits
IRIS Business Tax is intended for accountancy practices managing business tax compliance for clients. It may fit practices that want HMRC filing, tax calculations, and links with other IRIS products.
Verdict
IRIS Business Tax combines tax calculations, HMRC submission tracking, and iXBRL tagging for practice workflows. Prospective buyers need to contact IRIS for pricing or a purchase discussion.
Plans and prices
From IRIS Business Tax's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| IRIS Business Tax | Priced on request | Standalone module or part of IRIS Accountancy Suite · self-hosted desktop or hosted with IRIS Anywhere |
The facts
Each one read from IRIS Business Tax's own pages, with the date it was checked.
What it does
- Automatic calculations
- It calculates capital allowances, vehicle allowances using an integrated CO2 emissions database, enhanced R&D, losses and capital gains tax.checked 4 Oct 2026
- Data entry
- When combined with IRIS Accounts Production, it can pull accounts data into a universal client record and populate tax returns automatically.checked 4 Oct 2026
- Deployment
- Business Tax is available as a self-hosted desktop solution or hosted through IRIS Anywhere.checked 4 Oct 2026
- HMRC filing
- The software can file tax documents directly to HMRC and track submission status.checked 4 Oct 2026
- HMRC updates
- IRIS says the software reflects the latest HMRC legislation without requiring users to update settings manually.checked 4 Oct 2026
- Integrations
- It integrates with IRIS Accounts Production, Personal Tax, Practice Management, Time and Fees, Company Secretarial and OpenSpace.checked 4 Oct 2026
- iXBRL
- The product includes automated iXBRL tagging for tax computations, including extended period computations.checked 4 Oct 2026
- 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.checked 4 Oct 2026
- Purpose
- Business Tax prepares tax computations and returns for corporate clients, partnerships, sole traders and other client types.checked 4 Oct 2026
- Standalone use
- The Business Tax module can be used without purchasing the full IRIS Accountancy Suite.checked 4 Oct 2026
- 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.checked 4 Oct 2026
- Who it is for
- IRIS describes Business Tax as software for accountancy practices handling business tax compliance for clients.checked 4 Oct 2026
The company
- Company history
- IRIS says accountant David Guest founded the company in 1978 to make tax compliance easier for accountants.checked 4 Oct 2026
- Founded
- 1978checked 19 Oct 2026
