Even though ACH Transfers (deposits) usually take around 1-5 business days to arrive in your account, funds added to Donut start earning interest right away. That’s because of Instant APY.
Instant APY means that when you add funds to Donut, the amount will appear as part of your balance on your Donut home screen in seconds and be put to work earning interest instantly.
Instant APY though, does not mean instant withdrawal. You'll still need to wait 1-5 business days for the deposit to settle before being able to withdraw your newly-added funds.