Please note that dates between 28th March 2017 till 5th April 2017 fall in previous tax year. Therefore they are not included in Month 1 payslip. The SSP recorded in M1 relates to this tax year that is from 6th April to 30th April which is 3.5 Weeks not 4 weeks. As it is now I should I not finalist a year end in case someone is going to be sick the first week in April