ETASSUM34170 | Schedule 3 SAYE option schemes: Linkage to savings (arrangement): Link between exercise & bonus date
From HM Revenue & Customs · Employee Tax Advantaged Share Scheme User Manual
Paragraph 30 provides that the normal rights of exercise of Schedule 3 SAYE options are to be linked to the bonus date of the related savings contract.
Schemes must provide that options are not to be capable of being exercised:
before the bonus date (paragraph 30), other than in the exceptional circumstances set out in paragraphs 32 & 34 & 37, or
later than six months after the bonus date (paragraph 30), other than following the death of the option-holder (paragraph 32)).