Knowledge Base Articles

ias-company-secretarial-element-confirmationstatement-is-invalid-error

IAS Company Secretarial CS01 Submission error

When trying to file the CS01 with Companies House you receive the error message "Element ConfirmationStatement is invalidLine 36: The 'http://xmlgw.companieshouse.gov.uk:ConfirmationStatement' element is not declared."…

ias-26-1-service-pack-session-control-session-will-end-your-administration-has-terminated-your-session-error-messages

IAS – In the 26.1 Spring Service Pack users receive error messages like “Session Control” & “Session will end: Your Administration has terminated your session”

After upgrading to version 26.1.10.60 or 26.1.10.61 of IRIS Accountancy Suite users report being removed from the software and receiving errors like "Session will end:…

personal-tax-vat-invocation-of-the-constructor-cefsharp-wpf-chromium-web-browser-etc

Personal Tax/VAT- Invocation of the constructor ‘CefSharp WPF Chromium Web browser’ etc.

You get this error when using PT MTD, PT Data retrieval and the VAT filer. As they use all a online LINK to HMRC and…

ias26004-bt-26-1-10-uk-fhl-income-and-balancing-charges-cannot-exceed-150000-without-ticking-box-1-3a-traditional-cash-basis

IAS26004 BT- 26.1.10, UK FHL income and balancing charges cannot exceed £150,000 without ticking box 1.3A (traditional/cash basis)

If you have a BT client which is a LLP/Partnership with property income and you keep getting an pop up 'UK FHL income and balancing…

ias-mtd-quarters-for-ap-to-bt-to-pt-workflow

Knowledge Base Articles

Knowledge Base

IAS Company Secretarial CS01 Submission error

IAS – In the 26.1 Spring Service Pack users receive error messages like “Session Control” & “Session will end: Your Administration has terminated your session”

Personal Tax/VAT- Invocation of the constructor ‘CefSharp WPF Chromium Web browser’ etc.

IAS26004 BT- 26.1.10, UK FHL income and balancing charges cannot exceed £150,000 without ticking box 1.3A (traditional/cash basis)

IAS – MTD Quarters for AP to BT to PT workflow

Personal Tax- MTD Quarters how to link your ASA login?

Failed to initialize WebView2: Couldn’t find a compatible Webview2 Runtime installation to host Webviews.

IAS25431 Trust Tax – 2026 Expenses not showing/incorrect on boxes 3.20-3.29 etc (FIXED)

Personal Tax- 2026 onwards Employment Close Company dividends and EMP7 errors

How do I set up the MTD ITSA job type in IRIS Practice Management?

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