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How can communications network operators best work with property developers?
Information for developing and testing of software for HMRC forms, returns and messages.
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.
Check a list of software developers who can provide Customs Declaration Service and Customs Handling of Import and Export Freight (CHIEF) software.
Government wrote to developers on 30 January 2023 asking them to sign a contract committing them to remediate unsafe buildings which they developed.
Provides practical advice on making developments better for people and the environment.
List of developers who have pledged to commit to remediate life critical fire safety works in buildings over 11 metres.
Specifications and guidelines for Real Time Information internet submissions and for the outgoing Data Provisioning Service.
Technical specifications for software developers working with the PAYE online service.
Use this list to find individual software suppliers and commercial products to use to file online with HMRC online services.
Find software developers that can help with entry summary declarations including safety and security declarations for imports.
Find technical specifications and support for software developers working with the Construction Industry Scheme Online service.
Call or email HMRC to get technical information and support if you're a software developer
Support and technical specifications for software developers working with the Self Assessment online service.
How developers can create and enhance habitat off-site or buy biodiversity units to achieve biodiversity net gain (BNG).
How developers can create and enhance habitat on-site to deliver biodiversity net gain (BNG).
Find technical specifications for software developers working with the Corporation Tax online service.
If you're a software developer, use the HMRC Developer Hub to learn about and integrate your applications with our RESTful APIs.
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