Article 19 United Nations Charter
Article 19 of the United Nations Charter is under Voting of Chapter IV: The General Assembly
Article 19
A Member of the United Nations which is in arrears in the payment of its financial contributions to the Organization shall have no vote in the General Assembly if the amount of its arrears equals or exceeds the amount of the contributions due from it for the preceding two full years. The General Assembly may, nevertheless, permit such a Member to vote if it is satisfied that the failure to pay is due to conditions beyond the control of the Member.
See also: Article 18 United Nations Charter