What rules do you use for rounding Stripe fees?
We round to the nearest unit (e.g., cents). This means that, if the fee is 0.025, we’ll round up to 0.03. If the fee is 0.024, we’ll round down to 0.02.
ACH fees have a floor, so that if we were to round the fee to 0, we would instead round it to 1 cent.