Support for software developers
New software developers Getting you started in developing software for submitting HMRC returns online
Online Services technical packs Technical specifications for HMRC Online Services
Record keeping and mobile applicationsHMRC announces the Business Requirement for a record keeping mobile application for commercial development
Service availability Check here for details of future availability of live and test services
Software consultation forums Join in discussions about issues that affect software developers
Improving our customer support Complete the questionnaire and let us know how you rate the Software Developer Support Team
Electronic Business - HMRC Commissioners' DirectionsThe Commissioners’ Directions give the detailed conditions for using online services including the use of electronic communications for delivering information and making payments