Yes, you can transfer your Help to Buy ISA into a Tembo Lifetime ISA.
Before transferring, check with your current provider on any rules or government conditions regarding the withdrawal.
The best way of doing this currently is to withdraw funds from your existing ISA). Then you can add your savings to your Lifetime ISA with us at Tembo, via direct debit or as a one-off contribution from your connected bank account.
We'll then send you an email to let you know when the money has landed. About a month later, you'll receive the government bonus! That's because unlike a Help to Buy ISA where you don't receive the bonus until completion day, with a Lifetime ISA you receive the bonus upfront, so you can earn interest or gains on the bonus over time.
Remember: that you can only deposit up to £4,000 each tax year into a Lifetime ISA, so if you've got more than this in your Help to Buy ISA, you'll need to split it over multiple tax years.