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HMRC internal manual

Statutory Payments Manual

Average Weekly Earnings (AWE) - SMP/SAP/ShPP/SPP: employee with contractual pay day paid early because of public holiday

An employment contract can be partly written or partly oral and can consist of both express and implied terms. As such, it can be amended over time. The contract may specify a particular day of each month as the pay day, but this may be amended by way of custom and practice. Where it is customary to pay wages early because of a national or local holiday, the normal contractual payday will change for that month.