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Register to vote Register by 18 June to vote in the General Election on 4 July.
The Incubator for Automation and Innovation (i.AI) was a software development team that was part of the Cabinet Office and the Prime Minister’s Delivery Group.
Support and technical specifications for software developers working with the Charities Online service in making repayment claims.
Technical specifications for software developers working with the Agent Authorisation Online service.
How to send information to Companies House through our extensible markup language (XML) schemas, by purchasing software or developing your own.
Technical specifications for New Computerised Transit System (NCTS) software developers.
Construction Industry Scheme (CIS) technical specifications for software developers.
Use this guidance for support if you're a software developer working with the Self Assessment Online service.
Technical specifications for developing software to send information to Companies House digitally.
If you're a software developer, use the HMRC Developer Hub to learn about and integrate your applications with our RESTful APIs.
Find HMRC payroll test data for software developers.
This update relates to the Budget Statement 18 March 2015.
How you can test and manage your API when it is in alpha development.
Find technical specifications and schemas for National Export System (NES) XML channel software developers.
Technical specifications for software developers working with the EC Sales List online service.
How to manage configuration: open source tools, writing infrastructure in code, portability.
Call or email HMRC to get technical information and support if you're a software developer
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