On Thursday, the UK's Office for National Statistics (ONS) announced that the annual inflation rate for April had been overestimated by 0.1 percentage points due to errors in vehicle tax data supplied by the government. Additionally, the Retail Prices Index (RPI), which is tied to index-linked UK government bonds, was overestimated by 10 basis points. Similarly, the CPIH rate, which includes owner-occupied housing costs, was also affected, being overestimated by 10 basis points. The ONS emphasized that while the data would not be revised, it would conduct a review of its quality assurance processes for external data in response to this issue.