IRIS
UK accounting and business management software suite.
About IRIS
IRIS is a practice management suite built specifically for UK accounting firms. Day-to-day, it handles statutory accounts production, MTD-compliant VAT and self-assessment filing direct to HMRC, payroll processing, and client workflow tracking inside one platform. If your firm currently switches between separate accounts production software, a payroll bureau tool, and a practice management system, IRIS consolidates those into a single login and a shared client database. It fits established UK practices — sole practitioners through mid-size firms — that need to meet HMRC submission deadlines without patching together multiple subscriptions. The HMRC and Companies House integrations are the core reason firms stay: accounts file direct, VAT returns submit under MTD rules, and confirmation statements push to Companies House without re-keying data. The honest limitation is the same as the selling point: depth creates weight. Onboarding takes weeks, not days. The interface reflects years of incremental development rather than a clean modern build, and some modules feel dated compared to cloud-native competitors like Xero Practice Manager or Karbon. Firms already running a working stack of point solutions will likely find IRIS overkill and difficult to partially adopt — it rewards full commitment to the ecosystem or punishes partial use.
Best for
UK accounting firms needing comprehensive practice software with HMRC compliance
Key Features
- UK accounts production automation
- MTD-compliant VAT and tax filing
- Integrated payroll processing
- Practice management workflow automation
- HMRC direct submission
Pros & Cons
Pros
- Files accounts direct to HMRC and Companies House without re-keying, cutting submission time for statutory deadlines
- MTD-compliant VAT and self-assessment returns built into the same platform as accounts production, not bolted on
- Integrated payroll processing handles RTI submissions to HMRC alongside practice payroll runs
- Single client record across accounts, tax, payroll, and practice management eliminates duplicate data entry across modules
- Practice workflow module tracks jobs, deadlines, and staff assignments across the full client portfolio
- Long-established HMRC integration means fewer submission failures during peak filing periods compared to newer tools
- Companies House integration automates confirmation statement filings and pulls registered company data into client records
Cons
- No free trial or evaluation tier — you commit before you see it in your own workflow
- Pricing is quote-only and scales by module and user count, making total cost difficult to benchmark without a sales call
- Interface is dated in several modules; task management and reporting dashboards feel behind Karbon or Xero Practice Manager
- Full adoption takes weeks of migration and staff training — partial use of individual modules is rarely cost-effective
- Deep platform lock-in: client data, workflow history, and filing records are difficult to extract cleanly if you switch
- Integrations outside the UK compliance ecosystem are limited — Xero or QuickBooks Online client data requires workarounds rather than native sync
Ledger Brief Take
This is a traditional UK practice management suite that happens to include some modern features rather than AI-first innovation. IRIS addresses the specific compliance headaches of UK firms — MTD filing, HMRC integration, and statutory accounts production — in one integrated platform rather than forcing you to juggle multiple point solutions. Best suited for established practices willing to commit to a comprehensive ecosystem rather than firms looking for lightweight tools to supplement existing workflows.
Frequently Asked Questions
Common questions accountants ask about IRIS.
How much does IRIS cost?
IRIS does not publish standard pricing. All plans are quote-based and priced by module combination and user count. Expect a sales call before you get a number. There is no free tier and no publicly available entry price to use as a baseline.
Does IRIS integrate with Xero or QuickBooks Online?
Not natively. IRIS is built around its own accounts production and tax modules. Firms whose clients use Xero or QuickBooks Online for bookkeeping will need to export data manually or use Excel as an intermediary. This is the most common friction point for mixed-stack practices.
How does IRIS compare to Xero Practice Manager or Karbon?
IRIS covers more ground: accounts production, tax filing, and payroll alongside practice management. Karbon and Xero Practice Manager handle workflow and client communication better but do not produce statutory accounts or file direct to HMRC. IRIS is the better fit if HMRC compliance is the priority; Karbon wins on modern workflow and UI.
Is IRIS suitable for sole practitioners or small firms?
Technically yes, but the cost and onboarding overhead make it hard to justify for one or two practitioners. The platform earns its keep at five or more staff where the shared client database and workflow automation replace meaningful manual coordination.
Is IRIS fully MTD compliant?
Yes. VAT returns file under MTD rules direct to HMRC from within the platform. Self-assessment and corporation tax filing also submit directly. IRIS has maintained HMRC-recognised software status through successive MTD phases, which matters for practices filing at volume.
How secure is client data stored in IRIS?
IRIS operates under UK GDPR requirements and holds ISO 27001 certification. Data is hosted on UK servers. That said, firms should review the data processing agreement directly before signing — standard practice for any platform holding client financial records.