National Pension Act Article 16

The insurer is entitled to suspend pension payments before the insured person pays the insurance premium and interests. However, payments in installments or delayed payments approved by the insurer, according to the previous article, are not included.Insurance premium for the period of temporary payment suspension will still be calculated and collected.In case the insurer issues the payments, the insurance premium that the insured persons shall pay has not been overdue, and the interest imposed for overdue insurance premium payments shall be deducted from the payments and calculated into the insurance periods.
中文原文 國民年金法第16條
保險人於被保險人未繳清保險費及利息前,得對被保險人暫行拒絕給付。
但被保險人經依前條第一項規定分期或延期繳納者,不在此限。
前項暫行拒絕給付期間內之保險費仍應計收。
保險人核發各項給付時,應將被保險人因繳款單開立及繳納時差而尚未逾繳納期限之保險費、逾期繳納保險費所應計收之利息,由發給之保險給付中扣抵,並計入保險年資。

English translation for reference only; the Chinese text prevails. Not legal advice.