Knowledge Base Articles

We don't just deliver on our promise to create powerful management products, we ensure you're equipped with the knowledge needed to tackle every business challenge.

Knowledge Base

3030 articles

iris-accountancy-shared-memory-is-locked

IRIS Accountancy – Session Control Shared Memory is Locked

In order to resolve the issue ‘Shared memory is locked’, Book a time and date to restart your IRIS system and server etc Ensure everyone…

personal-tax-2025-capital-gains-adjustment-value-incorrect-in-box-51-cg3

IAS 20793 Personal Tax- 2025 Capital gains % rate incorrect and Adjustment in Box 51 CG3 (Fixed 25.3)

Personal tax Capital Gains Rate incorrect 'Adjustment' value (Box 51 in CG3 page) because of the incorrect basic rate band allocation and is a DEFECT…

p11d-run-p11db-form-but-client-address-missing-details

P11D – Run P11D(B) form but client address missing details

Run P11DB form and the top left employer client address is missing details like city and postcode etc. Character/row rule: This is because the P11D…

p11d-how-to-get-the-correct-for-a-car-benefit

P11D – How to get the correct % for a Car benefit

The full KB article on engine size and car benefit % calculation is here The Car benefit % value is calculated using these factors: a.…

personal-tax-mtd-error-rescource_forbidden-matchingresourcenotfound

Personal Tax- MTD Error MATCHING RESOURCE NOT FOUND Or RESOURCE FORBIDDEN

MTD Error 'MATCHING RESOURCE NOT FOUND' MTD Error ‘RESOURCE_FORBIDDEN’ MATCHING RESOURCE NOT FOUND - When you access a clients trade/property and get a data retrieval…

personal-tax-2025-share-of-profits-the-sum-sa104-share-of-partnership-profit-loss-etc

Personal Tax- 2025 Share of Profits, The Sum SA104F share of partnership profit/loss etc 3001 8224 (Fixed 25.3/manual fix)

This has been confirmed as a DEFECT in 2025 within the Iris Personal Tax program affecting version 25.1.4.4 and there is a JULY fix released…

personal-tax-2025-share-of-partnership-trading-or-professional-profits-sa104-share-of-partnership-profit-loss-etc

Personal Tax- 2025 Share of partnership trading or professional profits, SA104 share of partnership profit/loss (Fixed 25.2)

This has been confirmed as a DEFECT in 2025 within the Iris Personal Tax program affecting version 25.1.4.42, there is a JULY fix released on…

personal-tax-2025-sole-trade-partnership-profit-incorrect-as-apportioning-360-365-days

IAS 21341 Personal Tax- 2025 Sole Trade/Partnership Profit incorrect apportioning 360/365 days (Manual fix)

The Self Employment and Partnership taxable profits is incorrect in the SA100, Tax computation and Trade computation. PT software has calculated an unexpected apportionment of…

personal-tax-2025-partnership-rental-profit-incorrect

Personal Tax- 2025 Partnership Rental profit incorrect on SA100/SOD (Fixed 25.2)

The Partnership rental profit is showing an incorrect apportionment by a number of days (example 360/365 - so a 5 day diff) in the Schedules…

personal-tax-2025-partnership-interest-incorrectlyapportionedbydays-on-tax-return

Personal Tax- 2025 Partnership Interest incorrectly apportioned by days 360/365 on Tax return

The Partnership share of Interest/Savings is incorrect in the partnership SA100. The software has calculated an unexpected apportionment of dates eg 360/365 and removing a…