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Register to vote Register by 18 June to vote in the General Election on 4 July.
Support and technical specifications for software developers working with the Self Assessment online service.
Consistent and standards-based comma-separated values (CSV) files help make data more effective and easier to share across government.
Technical specifications for software developers working with the PAYE online service.
Route and area check tools to assess the quality of active travel designs for active travel interventions and schemes.
The UK government's design principles and examples of how they've been used.
Find technical specifications and support for software developers working with the Construction Industry Scheme Online service.
How to access the DIADEM software, which links SATURN assignment models to a variable transport demand model.
How to access the transport users benefit appraisal (TUBA) software to undertake economic appraisal of transport schemes.
Find technical specifications for software developers working with the Corporation Tax online service.
Find technical specifications and schemas for National Export System (NES) XML channel software developers.
This publication seeks views on the cyber security risks of software used by businesses and organisations, and where government should seek to mitigate them.
Find out how to fill in your VAT return, about using VAT accounting schemes and how to submit your return electronically.
What cattle keepers must record and report when they move cattle, bison or buffalo and the deadlines.
Find guidance on PAYE updates for software developers.
Find out if simplified expenses suits your business. Compare what expenses you can claim using simplified expenses with what you can claim by working out the actual costs.
Learn how to publish accessible documents to meet the needs of all users under the accessibility regulations.
Find registered designs in the UK
Tools and guidance to help people Quality Assure (QA) new and existing energy security and net zero models, including those developed by third parties.
The Government Digital Service (GDS) style guide covers style points for content.
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