IRIS Business Tax
IRIS Business Tax: A broad UK tax workflow for practices already working in the IRIS ecosystem. Ranked #8 of 25 in Corporate Tax Software by our editors (8.7/10); pricing: Pricing on request; best for UK practices using IRIS systems.
At a glance
- Editor score8.7 / 10
- PricingPricing on request
- Best forUK practices using IRIS systems
- Electronic filingYes
- Founded1978
- Facts checked20 Sep 2026
Where it wins
- Handles corporate, partnership, and sole-trader tax computations
- Files directly to HMRC with submission-status tracking
- Imports accounts data and supports iXBRL and group relief workflows
Where it doesn't
- Pricing requires contact with sales
- Its strongest fit is practices using UK tax workflows
- Integration depth is centered on IRIS and listed accounting systems
Our verdict on IRIS Business Tax
IRIS Business Tax is tax return software for accountancy practices and in-house finance teams. It covers corporate, partnership, and sole-trader tax computations, with direct HMRC filing and submission-status tracking. The product is available through a self-hosted desktop solution or IRIS cloud hosting, giving firms a choice between local deployment and hosted access. Its focus is clearly suited to UK tax work, particularly where a practice already operates within the IRIS Accountancy Suite.
The main strength is breadth across the tax computation and filing workflow. IRIS Business Tax supports automated capital allowance calculations, automated iXBRL tagging, compliant computations, and interactive CT600 editing and review. It also supports group relief allocation between companies, while accounts data import and return auto-population are designed to reduce rekeying. For practices managing several entity types, that combination is more useful than a tool limited to corporate returns alone. Direct HMRC submission keeps filing within the same workflow rather than treating it as a separate step.
Ecosystem fit is the other decisive factor. The product integrates with IRIS Accounts Production, IRIS Personal Tax, IRIS Trust Tax, IRIS Dividend Service, IRIS Practice Management, and IRIS OpenSpace, alongside Sage, Oracle, and SAP. That gives firms with established accounting systems a path to connect accounts and tax processes, although the deepest alignment is with IRIS modules. IRIS Business Tax uses a contact-sales purchasing model, so it suits practices evaluating a broader accountancy software setup rather than buyers seeking a published, self-service price. Choose it for multi-entity UK tax preparation, filing, and IRIS integration; consider an alternative if you need transparent online pricing or a narrower standalone tool.
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IRIS Business Tax pricing
IRIS Business Tax fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Not verified |
| Jurisdictions covered | Not verified |
| Electronic filing | Yes |
| Consolidated returns | Not verified |
| Tax provision support | Not verified |
| Accounting integrations | Yes |
| Approval workflows | Yes |
| Deployment | Hybrid |
| Deployment | Cloud, Self-hosted, Desktop |
| Platforms | Web |
| Support | Email, Phone, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 9 integrations: IRIS Accounts Production, IRIS Personal Tax, IRIS Trust Tax, IRIS Dividend Service, IRIS Practice Management, IRIS OpenSpace … |
| Pricing | Pricing on request |
| Website | iris.co.uk |
| Facts checked | 20 Sep 2026 |
IRIS Business Tax integrations
IRIS Business Tax lists 9 integrations on its own site.
- IRIS Accounts Production
- IRIS Personal Tax
- IRIS Trust Tax
- IRIS Dividend Service
- IRIS Practice Management
- IRIS OpenSpace
- Sage
- Oracle
- SAP
Alternatives to IRIS Business Tax
- Tax SeriesA broad compliance and provision platform for multinational U.S. tax teams.9.4
- ONESOURCE Income TaxA broad corporate tax system for complex federal, state, local, and international compliance.9.3
- GoSystem Tax RSA cloud platform for firms managing complex, high-volume corporate filings.9.2
See all IRIS Business Tax alternatives →
IRIS Business Tax vs the competition
- IRIS Business Tax vs Tax Series
- IRIS Business Tax vs ONESOURCE Income Tax
- IRIS Business Tax vs GoSystem Tax RS
- IRIS Business Tax vs Alphatax
- IRIS Business Tax vs Complete Tax Solutions
- IRIS Business Tax vs CSC Corptax
Compare IRIS Business Tax with any tool side by side →
Also Ranked In
IRIS Business Tax is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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