unpaid capital; not fully paid up
Financial term referring to capital that has not been fully paid in, often used in corporate contexts.
Shares with unpaid capital cannot exercise voting rights.
未払 is a broader term for 'unpaid' (e.g., bills, wages), whereas 未払い込み is limited to capital contributions.
Formed from the negative prefix 未 “not yet; un-” and 払い込み “payment; paying in.”