TinyTax vs IRIS: CT600 Software Comparison

IRIS is a major player in UK accounting software. TinyTax is a focused CT600 solution. This comparison helps you understand the differences.

Quick Comparison

FeatureTinyTaxIRIS
CompanyTinyTaxIRIS Software Group
Target marketMicro-entities, self-filersAccountancy practices, enterprises
Starting priceFreeContact for pricing
Product rangeCT600 focusedFull practice suite
DeploymentCloudCloud + desktop options

The Key Difference

IRIS is an enterprise-level practice management solution covering accounts, tax, payroll, and practice management across multiple products.

TinyTax is a focused tool for CT600 and micro-entity accounts filing.

Who Uses Each?

TinyTax Users

  • Small company directors self-filing
  • Micro-entity businesses
  • Accountants recommending simple tools to clients
  • Cost-conscious companies

IRIS Users

  • Large accountancy practices
  • Multi-partner firms
  • Enterprise organisations
  • Firms needing integrated systems

Pricing Comparison

TinyTax

TierPrice
Free (micro-entity)£0
StandardFrom £49
No annual contracts required.

IRIS

IRIS uses practice-based pricing with various product bundles. Prices are typically in the £1000s per year for practices. Contact IRIS for quotes.

Feature Comparison

CT600 Capability

FeatureTinyTaxIRIS
CT600 filing
HMRC submission
All company sizesLimited
Complex returnsBasic

Accounts Production

FeatureTinyTaxIRIS
Micro-entity✓ (free)
Small companyLimited
Medium/LargeNo
Full statutoryNo

Additional Products

ProductTinyTaxIRIS
Personal taxNoYes
PayrollNoYes
Practice managementNoYes
BookkeepingNoYes
Time recordingNoYes

When to Choose TinyTax

Choose TinyTax if:

  • You're a micro-entity wanting free filing
  • You want simple, modern software
  • You don't need practice management
  • Budget is a primary concern
  • You're self-filing as a director

When to Choose IRIS

Choose IRIS if:

  • You run a multi-client accountancy practice
  • You need integrated practice management
  • You handle complex tax situations
  • You want everything from one vendor
  • You're already using other IRIS products

For Practices: The Two-Tool Approach

Many accountants use different tools for different clients:

Client TypeTool
Simple micro-entityTinyTax (free)
Complex or largerIRIS
This reduces costs while maintaining capability.

Migration Considerations

From IRIS to TinyTax

Practical for simple clients only:

  • Export client data
  • Set up in TinyTax
  • TinyTax fetches prior year from HMRC

From TinyTax to IRIS

If clients grow beyond micro-entity:

  • Download TinyTax records
  • Import to IRIS (or re-enter)
  • Continue with more features

Frequently Asked Questions

Is TinyTax suitable for practices?

Yes, for simple micro-entity clients. Many practices use TinyTax alongside more comprehensive software.

Can IRIS do what TinyTax does?

Yes—IRIS can file CT600 for micro-entities. But it's more software than most micro-entities need.

Which is easier to learn?

TinyTax is simpler with minimal training. IRIS has more features requiring more learning investment.

What about support?

IRIS: Comprehensive support for practices. TinyTax: Chat/email support designed for self-filers.

Summary

FactorTinyTaxIRIS
PriceFree-£49£1000s/year
Best forSimple filingFull practice
Learning curveLowHigher
FeaturesFocusedComprehensive
SupportChat/emailFull practice support
These products serve different markets. TinyTax excels at simple, affordable CT600 filing. IRIS provides comprehensive practice management for larger firms.


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