IRIS Tax Anomaly Detector

Only available when reviewing personal tax returns (SA100).

When reviewing personal tax returns, you can use the AI-powered IRIS Tax Anomaly Detector to analyse the tax return so you can correct any found issues before submitting.

How does it work?

If the previous years' tax return exists, the tax analysis tool compares that tax return to the one you are reviewing.

All personal data is stripped out of the tax return before being processed by the analysis tool. At the time of publishing, only the figures entered for the following Data Input sections are analysed:

  • Employment
  • Dividends from UK companies
  • Other UK Pensions, etc.
  • Other dividends
  • State pensions & benefits
  • Gift Aid payments
  • Income from UK property
  • Marriage allowance transfer
  • Self-employment
  • Blind Persons Allowance
  • Interest from UK banks, etc.
  • Student loan repayments

We are continually adding new sections to the analysis tool.

The analysis includes:

  • New items compared to last year
  • Any items removed compared to last year
  • Any items that have a difference of 10% compared to last year

When the analysis is complete, select a line to open the AI recommended action panel. If you are able, we would appreciate any feedback you have about that particular analysis and recommendation to help us understand which AI patterns to keep or remove, and update IRIS Tax Anomaly Detector accordingly.

The data used for each analysis is not saved. Only the Data comparison report is saved. Although you can re-run the analysis, we recommend only re-running it if you make any changes to the tax return before submission.

Data safeguarding

All personal and identifiable data is removed before being processed by the IRIS Tax Anomaly Detector.

All data is hosted and processed in the UK.

No personal or tax return data is stored by the IRIS Tax Anomaly Detector. Only the responses and any feedback you provided are stored.

All data is encrypted. Only HTTPS transport methods are used.

Any data analysed is not made publicly accessible and cannot be used by external AI models. All data is ring-fenced for the IRIS Tax Anomaly Detector only.