OTT developer docs
This is the technical documentation for the Online Trade Tariff team in HM Revenue and Customs (HMRC).
For technical documentation applicable to OTT APIs, see API docs.
To review the current status of the applications managed by this team please see status page
Joining OTT
Get started
Slack channels
- #ott-core For all OTT core developers
- #windsor-framework-fpo Where the Windsor Framework Fast Parcel Operator team hangout
- #windsor-framework-green-lanes Where the Windsor Framework Green Lane team hangout
Main navigation
OTT codebases
- Repositories All the applications and other repositories we use to build OTT.
OTT manuals
- Developer manuals The contents page of OTT's developer manuals.