I want to transfer in an ISA which has a maturity date.
If you’re looking to transfer in an ISA from another provider which has a maturity date, it’s best to wait until this has matured before starting a transfer in. This is because providers are typically unable to hold your transfer until your maturity date and may reject the transfer request or apply an early closure penalty.
Once your ISA has matured, you can start a transfer in in the Moneybox app in Settings > Transfer in an existing ISA, or by logging into the website and clicking View account > Transfer in an existing ISA.