User Guides -These publications are for the use of Employers, Contractors and Agents who use Electronic Data Interchange.
Technical Specifications - These publications contain the Technical Specifications used by Software Developers to produce online services and Software for the Internet, Electronic Data Interchange and Magnetic Media
Notes for Software Developers - Published at least four times a year this publication informs the Software Industry of updates to technical specifications and information on future developments within HMRC This allows them to keep their payroll products up to date with changing legislation.
Self Assessment Online Technical Specifications
Construction Industry Scheme Online User Guides
Corporation Tax Online Technical Specifications
PAYE Online for Employers/Agents User Guides
PAYE Online for Employers/Agents Technical Specifications
