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Find Document Submission Protocol guidance for architects, software developers and other parties interested in building Transaction Engine client applications.
How to access the transport users benefit appraisal (TUBA) software to undertake economic appraisal of transport schemes.
The latest list of approved software for the production of non domestic Energy Performance Certificates (EPCs).
Tech Minister Saqib Bhatti's speech to the National Cyber Security Centre's CyberUK 2024 conference in Birmingham.
Manage, check and withdraw permission you've given to software applications to share and update your tax information
Procurement options available from the Crown Commercial Service for the public sector.
Find software developers that can help with entry summary declarations including safety and security declarations for imports.
If you're a software developer, use the HMRC Developer Hub to learn about and integrate your applications with our RESTful APIs.
How to send information to Companies House through our extensible markup language (XML) schemas, by purchasing software or developing your own.
Farm software companies that have successfully passed testing for the Cattle Tracing Service (CTS) Web Services.
Check for free and paid-for software recognised by HMRC that you can use to report PAYE information online.
Specifications and guidelines for Real Time Information internet submissions and for the outgoing Data Provisioning Service.
Publish your code and use open source to improve transparency, flexibility and accountability.
Technical specifications for developing software to send information to Companies House digitally.
Guidance on APIs and how to find commercial software suppliers for different HMRC online services.
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