Farmer Pension Act Article 10

Farmers may submit applications to their farmers’ or fishermen’s associations with jurisdiction in May or November of each year to adjust their payment ratio, and the farmers’ or fishermen’s associations shall in turn notify the BLI before the end of the same month. The adjusted ratio shall take effect from the first day of the month following notification.
中文原文 農民退休儲金條例第10條
農民得於每年五月或十一月向農(漁)會提出申請調整提繳比率,並由農(漁)會於受理申請當月底前通知勞保局,其調整自通知之次月一日起生效。

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