One of many changes in the wings is Payday Filing. This means filing PAYE returns for each payday, rather than once the following month. Applies to filing only, with no change to payment dates. This change may give the government more accurate and up to date information for calculating tax and entitlements. Not yet law, but if passed, will be optional from 1 April 2018 and compulsory from 1 April 2019.