Plan year
12-month period for which plan records are kept and Form 5500-EZ is filed.
Definition
Plan year is the 12-month accounting period for the retirement plan, generally the calendar year for Solo 401(k) plans. A short plan year (less than 12 months) occurs in the year of plan establishment or termination. Form 5500-EZ is due the last day of the 7th month after the plan year ends — July 31 for a calendar-year plan.