Knowledge Base Articles

kba-03851

This example relates to a taxpayer who previously had an April year end so the last accounts were made up…

personal-tax-add-income-and-get-if-a-date-received-is-not-entered-these-values-wont-be-included-in-any-updates-sent-to-hmrc

If you are trying to trying to enter income and expenses however the message appears: 'If a date received is…

error-3318-the-period-to-which-this-returns-accounts-applies-does-not-coincide-with-the-effective-from-to-dates-of-the-referenced-accounts-taxonomy

We are aware of an issue affecting some users in IRIS Accounts Production, where the Error 3318 - the period…

business-tax-claim-audio-visual-and-video-games-expenditure-credits-avec-expenditure-credit-regime-post-2024-25

New CT600P/error 9300 - Read this KB HMRC Post 2024/2025 rules - Certain creative types are moved to a new…

personal-tax-period-reform-2024-spread-transition-profit-treated-as-arising-fps16-1-and-3001-8625-fps16-1

Load Client in PT and the 2024 year (this normally affects the 2024 year) Check all trades and ensure they…

personal-tax-hmrc-special-id535455-etc

This list of HMRC Special IDs are unique for each year and this list has some specific to 2023/2024. New…

vat-filer-http-status-proxy-authentication-required

If you get a Data Retrieval Error, HTTP Status Proxy Authentication required error received when attempting to collect this client’s…

personal-tax-profit-or-loss-transition-part-if-fps16-1-sa104f-overlap-relief-taxable-profits-after-losses-is-less-then-zero-error-3001-8620-8630

If you have Partnership income with overlap relief and generate a tax return you get this validation error and if…

iris-community-how-to-login-and-queries

What is the IRIS Community?The IRIS Community is a portal where you can log and monitor technical support cases with…

business-tax-partnership-date-of-commencement-entered-in-box-3-7-must-be-on-or-after-the-6th-april-of-the-return

When in BT for a Partnership, you get a error: Date of commencement entered in box 3.7 must be on…