in credit—still having money in one’s bank account:
- As long as you stay in credit or within the free £100 overdraft facility, there will be no charges for normal transactions on your account.
on credit—(of goods and services) not paid for at the time when bought:
- Armed with a credit card … an American can have meals, buy clothes, stay at hotels—all on credit.
Note: The expression does not correlate in meaning with the phrase on the credit side—used to introduce one or more of the good things about a situation:
- On the credit side he could reasonably bank on his colleague’s honesty.