The simplified immigration routes, such as Skilled Worker, have separate validity requirements for extensions and settlement, and are expressly excluded from the validity requirements for leave to remain applications set out in the Immigration Rules, Part 1, paras 34 and 34A. Tier 1 (Investor) is a non-simplified route and so paras 34 and 34A apply. See Practice Note Procedure for applying online in the UK. The general rule is as set out in Immigration Rules, Part 1, para 34A is that where validity requirements of Immigration Rules, Part 1, para 34 are not met, the application will be invalid and will not be considered. Following service of a notice of invalidity, the application will be deemed invalid from the date the application was submitted (except where there is a failure to