Knowledge Base Articles

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

AP: Error 3001 3318/3320 – period which this Return’s Accounts applies does not coincide with effective from/to dates of referenced Accounts Taxonomy.

This is a IRIS Accounts Production issue (and this is NOT a Business Tax error where the message normally appears), where the Error 3318 -…

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

Business Tax- Claim Audio-Visual and Video Games Expenditure Credits (AVEC) ‘Expenditure credit’ regime Post 2024/25 Box 541

New CT600P/error 9300 - Read this KB Original 'Creative Enhanced Expenditure' claim (Pre 2024/25 before the changes below)- Read this KB HMRC Post 2024/2025 rules…

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

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 have the next 2025 period…

personal-tax-hmrc-special-id535455-etc

Personal/Trust Tax- ‘HMRC Special ID’ for Example 53,54,55,57 etc

This list of HMRC Special IDs are unique for each year and this list has some specific to 2023/2024. New ID codes not yet on…

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

VAT Filer- HTTP Status Proxy Authentication required

If you get a HTTP Status Proxy Authentication required error when attempting to collect this client’s VAT data from HMRC. This is normally caused by…

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

Personal Tax- Period Reform 2024: 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 you bypass it and submit…

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

Knowledge Base Articles

Knowledge Base

AP: Error 3001 3318/3320 – period which this Return’s Accounts applies does not coincide with effective from/to dates of referenced Accounts Taxonomy.

Business Tax- Claim Audio-Visual and Video Games Expenditure Credits (AVEC) ‘Expenditure credit’ regime Post 2024/25 Box 541

Personal Tax- Period Reform 2024: Spread Transition profit treated as arising FPS16.1 and 3001 8625 FPS16.1

Personal/Trust Tax- ‘HMRC Special ID’ for Example 53,54,55,57 etc

VAT Filer- HTTP Status Proxy Authentication required

Personal Tax- Period Reform 2024: Profit or Loss Transition Part, if FPS16.1, SA104F Overlap relief, Taxable Profits after Losses is less then zero. Error 3001 8620/8630

IRIS Community – How to Login and Queries

Business Tax – Partnership Date of commencement entered in box 3.7 must be on or after the 6th April of return

Personal Tax- Period Reform 2024: Trade loss used/carry back is showing as being carried forward (box 79/80)

PTP TR – Self Employment entries for Basis Period Reform with two sets of accounts

Knowledge Base Articles

Knowledge Base

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