Latest documents
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Planned downtime from 9am to 5pm on Saturday 9 December 2023 has been added.
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P11D forms are now submitted online, the draft software developer form is for information only and should not be submitted to HMRC.
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Information about using box 773 for the 50% first-year allowance has been updated.
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Information about planned downtime for multiple services from 10pm on Friday 3 November 2023 to 7am on Monday 6 November 2023 has been added.
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Planned downtime from 10am to 5pm on Saturday 14 October 2023 has been added.
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The Response messages version 3.1 have been replaced with Response messages version 4.0a.
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CT600 V3 (2024) Artefacts V1.992 has been added.
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Information has been added for pension scheme administrators affected by the public service pensions remedy who need to register for the Secure Data Exchange Service.
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The list of commercial software supplier details has been updated.
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How to use the test services for Agent Authorisation Online document has been updated to v2.5a.
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The issues which were effecting this service have now been resolved.
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Corporation Tax recognition instructions 2023 has been added.
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The generic dimension validations file has been updated to include items for the years 2021, 2022 and 2023.
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The planned downtime from midday Friday 23 June 2023 to 7am Monday 26 June 2023 has changed, it will start at midday Friday 23 June 2023 and now finish at 9am on Monday 26th June 2023.
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SA recognition process: 1.2 PDF removed.
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PAYE recognition process: 1.2 PDF removed.
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CT recognition process: 1.2 PDF removed.
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CIS recognition process: 1.2 PDF removed.
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Local Test Service version 6.7 is now available and has replaced version 6.6.
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Out of date legacy guidance has been removed from the page.
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Planned downtime from 1:00pm to 5:00pm on Sunday 12 February 2023 has been added.
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National Insurance guidance for software developers effective from 6 April 2023 has been added. Guidance for 2017 to 2018 has been removed.
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Samples have been updated to version 3 of the CT600.
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The 'Specification for PAYE tax table routines' has been updated to version 21.0 (January 2023).
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The PAYE draft forms for tax year 2022 to 2023 have been added, and the versions for tax years 2013 to 2014, 2014 to 2015, 2015 to 2016, 2016 to 2017, 2017 to 2018 and 2018 to 2019 have been removed.
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The annual thresholds for 2023 to 2024 have been added.
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WSDL and schema third party v16.0 for release 4.0 has been added.
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PAYE draft forms: P60 (2023 to 2024) has been added.
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A new software supplier has been added.
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The design specification for P45 has been updated.
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Version 3.1 of test data has been added to the 'National Insurance' Zip file. This version corrects errors in the version sent by email on 6 October 2022.
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The supplementary guidance has been updated from version 2.7 to version 2.8.
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'How to use the test service: 2.4' has been replaced with 'How to use the test service: 2.5'.
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The 'Instruction for gaining Internet recognition version 1.4', 'Recognition scenarios for CIS verification version 1.6' and 'Recognition scenarios for CIS monthly returns version 3.0' files have been replaced with the 'CIS Recognition v1.0' zip folder.
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You no longer need to send your company website address, postal address and telephone number to the Software Developer Support Team if you’re a software developer wanting to create an XML product to interact with HMRC online.
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The New Computerised Transit System list has been updated, 1 supplier has been added.
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Real Time Information internet submissions: 2015 to 2016 technical specifications has been removed.
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Information about contacting the Software Developers Support Team (SDST) has been updated.
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VAT returns can no longer be submitted using Extensible Markup Language (XML).
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VAT returns can no longer be submitted using Extensible Markup Language (XML).
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HMRC IRmark code examples are no longer available in executable JAR format.
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The list of commercial suppliers has been updated.
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RTI Non-form validation rules have been updated to version 1.2.
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Planned downtime from 6pm to 11pm on Tuesday 11 May 2021 has been added.
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Software developers: payroll test data 2021 to 2022 added. Software developers: payroll test data 2019 to 2020 removed.