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How to register as a software developer with HMRC.
Publish your code and use open source to improve transparency, flexibility and accountability.
Find Companies House-recognised filing software to manage your company accounts, returns and tax accounts
You can use software to file your company accounts, file changes to your…
Companies House has tested the software listed. You should consider which…
Companies House has tested and authorised software for filing information…
How to send information to Companies House through our extensible markup language (XML) schemas, by purchasing software or developing your own.
Information for developing and testing of software for HMRC forms, returns and messages.
List of software developers to get help with entry summary declarations (safety and security declarations for imports).
Specifications and guidelines for Real Time Information internet submissions and for the outgoing Data Provisioning Service.
Check a list of software developers who can provide Customs Declaration Service and Customs Handling of Import and Export Freight (CHIEF) software.
How to manage configuration: open source tools, writing infrastructure in code, portability.
Guidance on APIs and how to find commercial software suppliers for different HMRC online services.
Case study from Logically AI.
Find guidance on PAYE updates for software developers.
Information on when software applications are considered to be a medical device and how they are regulated.
Intellectual property guidance for British software providers in China.
Find technical specifications and support for software developers working with the Construction Industry Scheme Online service.
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