Section 26, The National Social Security and Insurance Trust Act, 2001

For any month throughout which a member is entitled to invalidity pension, a contribution shall not be payable in respect of that member but a contribution will instead be credited for that month equivalent to the contribution which would have been payable on the average monthly earnings of that member during the period of twelve months preceding that in which the entitlement to invalidity pension commenced. [Margin: Penalty for non-payment of contribution.]