We set the balance once per business day: interest is based on your end-of-day balance (Berlin time).
You earn interest every calendar day. On weekends and bank holidays, we use the last business day’s end-of-day balance.
When do funds start earning?
If you add funds before the business day ends, they’re counted that same day and start earning that day.
If you add funds on a weekend or bank holiday, they’re counted on the next business day and start earning then.
Note: Transfers made after the business day ends are also counted on the next business day (and start earning then).
What exactly is the end of day balance?
“End of day” is when we close the banking day (23:59 Berlin time). We record your end-of-day balance at that point and use it to calculate interest until the next business day’s end of day.
On weekends and bank holidays, there’s no new end-of-day balance; we continue using the previous business day’s end-of-day balance.
When is interest paid?
Your monthly interest is paid on the 1st of the following month, typically in the evening (Berlin time). Once paid, it’s added to your balance and included in the next business day’s end-of-day balance, so it compounds.
Quick math
Daily interest ≈ end-of-day balance × (annual gross rate ÷ 365).
Example: at 1.50% p.a. and €10,000, that’s about €0.41 per day until your balance changes.
