The retail price index (RPI) rose to 3.25 in July - more than was expected.
The largest upward pressures on the change in the RPI rate came from the purchase of cars, air fares, clothing, footwear and housing.
The rise in inflation means more misery for commuters as train companies can increase fares up by 6.2%. Will the Chancellor step in?
Today's inflation figures will give an indication of the level of rail fare increase we can expect in January. So what is driving that rise?
Commuters are braced for more misery as inflation figures were higher than expected meaning that train companies can charge more.