Add Comment Question: How does seniority accrue when you are on STD then LTD?? Answer: Seniority accrues while an employee is off on disability. If yours hasn’t you should contact me at my contact info below and we can discuss your specific situation and legal options. Your Comment * Your Email * Your Name * Your City Note, your name, city and email is not displayed on the website. It is used to notify you that we have approved your comment.