CSLM10067 - FAQs: employers questions and answers: what about time before start notice was sent?
Suggested answer
Ignore the period before the Start Notice was sent to you and start making deductions onthe first pay-day after the start date shown towards the bottom of the form.
Student Loan and Postgraduate Loan deductions are non-cumulative. Look only at the current pay period. Don’t worry about what may have been deducted before.
HMRC action
None