Compulsory Automobile Liability Insurance Act Article 15

(Proposer Renewal Notification)An insurer shall notify a proposer to renew the insurance 30 days prior to the expiry of the policy period. If an insurer fails to provide such notification and an insured peril occurs within 30 days after the expiry of the original policy period, the insurer shall still be liable for payment of insurance benefits, provided the proposer completes renewal procedures and extends the beginning of the policy period retroactively to the expiry of the original policy period.
中文原文 強制汽車責任保險法第15條
保險人應於保險期間屆滿三十日前通知要保人續保,其怠於通知而於原保險期間屆滿後三十日內發生保險事故者,如要保人辦妥續保手續,並將其始期追溯自原保險期間屆滿之時,保險人仍須負給付責任。

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