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Round the High Income Child Benefit Charge as s. 681C(3) requires - #2323

Merged

MaxGhenis merged 6 commits into

mainfrom

Oct 12, 2026

Merged

Round the High Income Child Benefit Charge as s. 681C(3) requires#2323
MaxGhenis merged 6 commits into
mainfrom
hicbc-rounding

Commits on Oct 11, 2026
- Round the High Income Child Benefit Charge as ITEPA 2003 s. 681C(3) requires
  
  MaxGhenis
  and
  claude
  committed
  9b589b3
- Test that the Child Benefit total is rounded down before the percentage applies
  
  MaxGhenis
  and
  claude
  committed
  ba13d61
- Update the opt-out Python tests to the statutory rounding
  
  MaxGhenis
  and
  claude
  committed
  ae1869c
- Round the charge exactly in float32 and in the household-based reform
  
  MaxGhenis
  and
  claude
  committed
  14f3f88
- Drop the rounding slack: exact steps are exact without it
  
  MaxGhenis
  and
  claude
  committed
  a0516c0
- Merge remote-tracking branch 'origin/main' into hicbc-rounding
  MaxGhenis
  committed
  eb99a94