Blue J provides comprehensive tax research across multiple jurisdictions, with dedicated data sources for the United States, Canada, and the United Kingdom. It also includes leading international tax resources to support cross-border research.
Available jurisdictions
Blue J currently supports research for:
- United States
- Canada
- United Kingdom
If your subscription includes access to multiple jurisdictions, you can switch between them using the Tax Data Source setting in Blue J.
Canadian coverage
When using the Canada data source, Blue J includes:
- Income Tax Act
- Canada Revenue Agency (CRA) guidance
- Federal case law
- Provincial case law
- Key provincial tax regimes
United Kingdom coverage
When using the United Kingdom data source, Blue J includes:
- Finance Acts
- HMRC guidance
- Decisions from U.K. courts and tribunals
International tax coverage
Blue J also includes leading international tax resources to support cross-border research, including:
- OECD materials
- OECD Pillar Two Model Rules
- OECD Pillar Two Commentary and Guidance
- IBFD content
In addition, treaty content is available for:
- United States
- Canada
when using the corresponding jurisdiction's data source.
These resources help you research international and cross-border tax issues with greater clarity and confidence.
A single research platform
Blue J combines legislation, administrative guidance, case law, treaties, and international resources into a single research platform.
Every answer is supported by citations and links to the underlying authorities, making it easy to verify conclusions and continue your research.
Need access to another jurisdiction?
If you're interested in additional jurisdictions or would like to see additional sources included in Blue J, we'd love to hear from you.
Please contact: