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How to register as a software developer with HMRC.
If you're a software developer, use the HMRC Developer Hub to learn about and integrate your applications with our RESTful APIs.
This factsheet provides a summary of key information about the contract for residents living in buildings where developers have pledged to remediate historic fire safety defects.
How developers can create and enhance habitat on-site to deliver biodiversity net gain (BNG).
How developers can create and enhance habitat off-site or buy biodiversity units to achieve biodiversity net gain (BNG).
When publishing your developer contributions data, follow this guidance on how to format, label and publish the data.
Information for software developers and conveyancers who plan to develop the client side of HM Land Registry's Business Gateway interface.
Government wrote to developers on 30 January 2023 asking them to sign a contract committing them to remediate unsafe buildings which they developed.
List of developers who have pledged to commit to remediate life critical fire safety works in buildings over 11 metres.
What you need to do as a developer to meet biodiversity net gain (BNG) requirements.
Specifications and guidelines for Real Time Information internet submissions and for the outgoing Data Provisioning Service.
Call or email HMRC to get technical information and support if you're a software developer
Information for developing and testing of software for HMRC forms, returns and messages.
This code of practice sets out minimum security and privacy requirements for app store operators and app developers.
Technical specifications for software developers working with the PAYE online service.
The government is carrying out research with app developers to help improve cyber security.
Check a list of software developers who can provide Customs Declaration Service and Customs Handling of Import and Export Freight (CHIEF) software.
Guidance on APIs and how to find commercial software suppliers for different HMRC online services.
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