When you make a payment into your 1 Year Fixed Rate ISA, it begins earning interest on the next working day after it lands in your account and is added to a Vault.
Interest is calculated daily on each Vault, and paid when your 1 year term has ended and your Vault reaches its access date, or, if you withdraw or transfer out, when it’s closed.
You can see the total amount of interest you’ve earned across all Vaults in Wealth > 1 Year Fixed Rate ISA > Total earnings, and you can also see your daily interest earned on each Vault in Wealth > 1 Year Fixed Rate ISA > Select a Vault > Today’s interest.