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

personal-tax-mtd-error-rescource_forbidden-matchingresourcenotfound

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

3rd July 2025

1. MTD Error ‘MATCHING RESOURCE NOT FOUND’
2. MTD Error ‘RESOURCE_FORBIDDEN’

MATCHING RESOURCE NOT FOUND – When you access a clients trade/property and get a data retrieval error log with ‘Matching resource not found’. No quarterly obligation periods are listed under period settings. When you select ‘Retrieve periods from HMRC’ you get another data retrieval error. This normally means:

a) HMRC do not have quarter periods for the tax year you are in and they only need it next tax year etc. There is no requirement for quarterly periods this tax year. Read this KB on how to check the HMRC side when they want the data.

b) Your HMRC setup has issues and/or your ASA login in PT needs a reset. (We recommend you first check if HMRC need the quarter submissions this tax year – see step 1 above)

Answer: The Full guide for missing quarter periods and you keep getting MATCHING RESOURCE NOT FOUND – Read here

NOTE: There is a known HMRC issue since Mid 2025 where this affects random clients with the error, please contact HMRC support to check their side (Also ask they check your ASA login and the MTD clients moved into your ASA account and if the HMRC side only needs the data for the next tax year then thats why you get the warning as they do not require it in the current tax year but next tax year).

RESOURCE_FORBIDDEN

Reported in 2025. You have set up a client up for MTD, accessed the ‘Digital Tax Hub’ on IRIS PT, then completed the HMRC process of verifying ID for your Agent Services account. Once it has been authorised, you are now receiving the error ‘RESOURCE_FORBIDDEN’ (The application is not subscribed to the API attempting to invoke) under PERIOD SETTINGS and no details coming from HMRC. This error is when accessing the end of year submission, (Note: The APIs have been updated in the next version of IRIS eg after version 25.1.4.42), however this area is NOT required for the ‘in year activity’ which you would be submitting for. 

Reported in 2026 – The RESOURCE_FORBIDDEN message is a generic warning that the data between and HMRC and IRIS PT is having issues (usually linked to the HMRC value being imported into PT) however it is not specific to one issue. Example: When you click Update HMRC Values the error is generated, it is related to CIS deductions retrieved from HMRC, the ‘other HMRC values’ retrieved are actually correctly despite the error message

1. ‘CIS Deduction’ values from HMRC can trigger this

NOTE: If you are trying to access eg 5th Apr 2025 period details but get the errors then it does not apply for it. You need to manually add the next period eg 5th Apr 2026 into PT and it will now work and not get the error and show all the periods. So add the next set of periods into PT and try again.