For new Cash ISA customers, the bonus interest rate applies to all balances held in your Moneybox Cash ISA during the offer period, including money transferred in from another ISA provider, unless we tell you otherwise.
For new Open Access Cash ISA customers, the bonus interest rate applies to all balances held in your Moneybox Cash ISA during the offer period, including money transferred in from another ISA provider, unless we tell you otherwise.
For existing customers, you can check if you’ll earn bonus interest on money transferred from another ISA into your Cash ISA or Open Access Cash ISA by heading to Wealth > Cash ISA/Open Access Cash ISA > More > Transfer in.