In principle, it is not possible to withdraw from a corporate-type DC.
You will receive retirement benefits usually from the age of 60.
However, only if you resign before age 60 and satisfy certain requirements, you may be eligible to receive "early lump-sum payment".
Case 1) All of the following requirements must be met.
(1) No longer a participant or an investment instructor in a DC plan
(2) Individual asset amount (*1) is not more than 15,000 yen.
(3) Six months have not elapsed since the month following the month of loss of eligibility to participate in a corporate-type DC plan.
Case 2) All of the following requirements must be met.
(1) Under 60 years old
(2) No longer a participant or an investment instructor in a DC plan
(3) Not eligible to become a participant in an individual-type DC plan (*2)
(4) Not entitled to receive disability benefits
(5) The total contribution period (*3) is not less than one month and not more than five years, or individual asset amount (*1) is not more than 250,000 yen.
If more than 6 months have passed since your retirement, please refer to this FAQ on withdrawal from an individual DC (iDeCo).
(*1) How to check the individual asset amount: Log in to the AnswerNet ＞Click on the "Account Information" tab ＞ "Vested Balance" for a corporate-type DC, Asset Balance for an individual-type DC.
(*2) Example of ineligibility for an individual-type DC plan
・Those who are exempt from paying national pension premiums entirely or partially (Category I insured persons who have been granted public assistance, application exemption, special payment system for students, or contribution postponement system for limited income persons)
・Overseas residents who do not have Japanese nationality (for permanent residence or long-term visa holders, only those who do not plan to stay in Japan for a long period of time in the future. If you leave Japan with a re-entry permit or deemed re-entry permit, you must notify the municipality of your moving out.)
・Those who are enrolled in other pension plans such as DB (*2-a) (excluding those who are enrolled in corporate-type DC), and the amount obtained by deducting the amount equivalent to contribution amount in other pension plans such as DB from 55,000 yen is less than the minimum contribution amount (5,000 yen) to an individual-type DC plan.
(*2-a) Defined benefit pension plan, employees' pension fund, Coal Mining Pension Fund, Federation of National Public Service Personnel Mutual Aid Association, Pension Fund Association for Local Government Officials, Mutual Aid Association of Private School Personnel
(*3) To check the total contribution period: "Notice of Loss of Participant Eligibility for Corporate-Type DC Pension Plan and Necessary Procedures" (blue envelope) sent within approximately one week to one month after the date of retirement. or, Log in to the AnswerNet ＞ Click on the "Benefit Information" tab ＞ "Total contribution period"