It would not be hyperbolic to describe the April CPI print as potentially the most important UK data point of the year. There are a number of price resets that only occur on an annual basis that take place in April. The increase in minimum / National Living wages as well as the employer NIC increase all came into effect in April, too. Complicating matter will be Easter effects that could potentially skew the data.
Energy and water bills are expected to add a combined 0.7ppt to headline CPI, but there are a number of other factors at play here.
We look at the potentially important drivers and the differences between consensus and BOE expectations across the main special aggregates. For example there is a huge divergence between sellside services CPI forecasts from 4.70-5.10% with a majority of analysts looking for a 4.8%or 4.9% print. The BOE expects a pick up to 5.00%.