HMRC CT calculations
Scala library for UK Corporation Tax return boxes and CT600 computations, including CT600A and CT600J.
What it does
Scala library from HMRC holding the boxes and calculations needed to build a UK Corporation Tax return: the CT600 with CT600A, CT600J and the computations. It is added to a Scala build as a dependency; the README says only a subset of boxes is supported. Apache 2.0, but GitHub shows the repository archived and read-only since April 2026.
Where it fits on the map
Not on the map: archived.
The map places maintained projects for a company tax department or a tax authority, without a demo or paid-service flag. Everything else stays on the list with its label.
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Maintain this project?
Link to this page from your README, so readers find the facts, the notes and where it fits. The badge is a small SVG served from this site.
[](https://tax-oss.com/projects/hmrc-ct-calculations/)