Known issues

This page displays any current issues in IRIS Cascade. We recommend that you bookmark this page. Here you can check if we are aware of an issue and find any available workarounds.

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If you are still encountering an issue that is not listed below, please contact the Service Desk on 0344 815 5555 or raise a ticket.

31 July 2026

State Pension Age

From April 2026, the State Pension Age is being increased from 66 to 67. To cater for this, HMRC have announced that state pension age will be reached at 66 years + a number of months, depending on the employees date of birth.

Cascade currently uses a set date which increases each month, rather than age - as per previous HMRC guidance on changing state pension age.

This currently impacts validation messages in payroll. A calculate message is displayed incorrectly in some cases, advising that the employee should change to NI Category C

This will also impact Auto-Enrolment. The state pension age will be showing an incorrect date, and employees could be showing available for enrolment incorrectly depending on their Date of birth.

We are currently working to correct the issues.

Please check any employees who are reaching state pension age, ensuring that they are changed to C rate or auto-enrolled based off the following HMRC timetable State Pension age timetable - GOV.UK.

27 July 2026

Documents incorrectly deleted from unassociated screens during Data Destruction

Summary
We are aware of an issue affecting the Data Destruction feature, where deleting screens associated with an employee can cause documents to be incorrectly removed from screens that are not associated with that data destruction action.


Impact
Customers using Data Destruction to delete screens from employee records may find that documents attached to unrelated, unassociated screens have also been deleted.

Next steps

Our development team is actively working on a fix, targeted for release in September 2026. This page will be updated as progress is made.

22nd May 2026

HMRC have announced changes to the Approved Mileage rate for the first 10,000 miles for Cars and Vans..

The tax free amount that employers can reimburse for employees using their own vehicle is increasing to 55p for the first 10,000 miles for tax year 2026 to 2027. The rate of 25p per mile remains for each business mile over 10,000 miles remains

We have started work on these changes required to update the rates for 2026/27. The changes to the rates will be updated as part of the next Cascade release, which is scheduled for Wednesday June 3rd.

Further information can be found here Vehicle Mileage Schemes 2026/2027

10th April 2026

HMRC have made us aware of an issue regarding to the uprating of statutory payments.

Historically, all statutory payments will be uprated from previous tax year on the 1st Sunday in the new year, which was the 5th April for 2026/27.

On the 8th April, HMRC have advised that for the 2026/27 tax year, the uprated date should have actually been the 6th April for the following statutory payments:

  • SPP

  • SAP

  • ShPP

  • SNCP

  • SPBP

As part of the year end procedures when uprating statutory payments for 2026/27, Cascade will have used 5th April for these statutory payments as per initial guidance.

HMRC and the Department for Business & Trade recognise that this error has been identified after the start of the new tax year, and that payroll products for 2026/27 have already been released. They have determined that as the issue only impacts a small number of customers not resulting in any detriment, they will take a pragmatic approach and not pursue any unintentional errors where the alternative date of 5th April has been applied for uprating these statutory payments for 2026/27 tax year. Therefore, based upon this advice, no further changes regarding uprating statutory payments will be made to Cascade.

The statutory rate applied by Cascade can be manually amended in Input Variable Pay if required.

4 February 2026

Actions buttons on some vertical screens

We are aware of some screens where the Action buttons along the bottom are not being aligned further up the screen after the data has loaded..

The areas in question are;

In HR any of the catalogues (Query and Groups catalogue etc)

In payroll, Application data > Pay Element > Groups > Add

The areas in question are still usable so we will be working towards correcting the issues in the coming releases.