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Information for developing and testing of software for HMRC forms, returns and messages.
How to access the transport users benefit appraisal (TUBA) software to undertake economic appraisal of transport schemes.
This guidance is an introduction to the Open Document Format (ODF) standard and how you can select ODF-compliant solutions.
Use this list to find individual software suppliers and commercial products to use to file online with HMRC online services.
How to choose data tools and infrastructure that are flexible, scalable, sustainable and secure.
How to send information to Companies House through our extensible markup language (XML) schemas, by purchasing software or developing your own.
Check a list of software developers who can provide Customs Declaration Service and Customs Handling of Import and Export Freight (CHIEF) software.
Find Companies House-recognised filing software to manage your company accounts, returns and tax accounts
Specifications and guidelines for Real Time Information internet submissions and for the outgoing Data Provisioning Service.
Guide to licensing procedure and other restrictions for export of controlled dual-use items, software and technology, goods for torture and radioactive sources.
Procurement options available from the Crown Commercial Service for the public sector.
How to access the DIADEM software, which links SATURN assignment models to a variable transport demand model.
Advice for manufacturers, members of the public and professional users of software or apps being used during the COVID-19 pandemic.
Get help classifying computers, inkjet and toner cartridges and their components.
Download HMRC's free payroll software Basic PAYE Tools
Information on when software applications are considered to be a medical device and how they are regulated.
Find a list of simple record keeping applications, including cash basis and simplified expenses specifications.
Technical specifications for software developers working with the PAYE online service.
Information for manufacturers, healthcare professionals, researchers and patients on software as a medical device (SaMD) and AI as a medical device (AIaMD).
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