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.
Why it matters
For IRS Form 5500-EZ, this term helps decide which records, dates, values, or review questions belong in the packet.
How the tool uses it
Solo 5500 treats this as a review signal. The user enters the facts, checks the source-linked explanation, reviews the packet, and files through the official channel when the supported case still fits.
When to check the source
Check the official source when the answer depends on eligibility, late filing relief, official correspondence, valuation, or a fact you cannot verify from your own records.
Source and review date
Last reviewed: . Use the linked source for the official wording behind this term.
Official source: IRS Form 5500-EZ filing notices