Knowledge Base Articles

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

IAS – MTD Quarters for AP to BT to PT workflow

How to enter income/expense data for: as a example a Sole Trader- so it shows in AP, then to BT and then to PT for…

personal-tax-mtd-quarters-how-to-link-your-asa-login

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

Personal Tax MTD quarters will only operate if these steps below are followed and completed 1.An 'ASA login' has been created on the HMRC site…

failed-to-initialize-webview2-couldnt-find-a-compatible-webview2-runtime-installation-to-host-webviews

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

You may encounter the following error when opening IRIS after installing the latest Service Pack (26.1.10.60); please click OK to continue to the Main menu…

ias25431-trust-tax-2026-expenses-not-showing-incorrect-on-boxes-3-24-3-29-etc

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

We confirm this is a known defect in version 26.1.0 with certain Trust expense types where the entry is not showing or is incorrect on…

personal-tax-2026-onwards-employment-close-company-dividends

Personal Tax- 2026 onwards Employment Close Company dividends

To indicate a company is close company with dividends (Only if the PT client who you are entering the data for is set as a…

how-do-i-set-up-the-mtd-itsa-job-type-in-iris-practice-management

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

Problem How do I set up the MTD ITSA job type in IRIS Practice Management and configure it to automatically track quarterly obligations? Resolution From…

p11d-loan-benefit-calculator-using-old-interest-rate-for-25-26-2-25-and-should-be-3-75

P11D- Loan Benefit Calculator using old interest rate for 25/26- 2.25% and should be 3.75%

In the 2026 tax year on version 26.1, the P11D Benefit Calculator is still using the old rate of 2.25 when it should be 3.75.…

personal-tax-mtd-quarters-qa-2026-onwards

Personal Tax – MTD Quarters Q&A 2026 onwards

As MTD is mandatory from 2026 onwards, there are new questions raised and we shall add answers here: Common terms used in Personal Tax: 'Digital…

business-tax-rd-claim-with-additional-information-box-650-657

Business Tax- R&D claim with additional information- Box 650/657

You have ticked the R&D ‘additional information box’ and made a R&D claim (either intensive or RDEC) but when you run the CT600 the boxes…

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