We must accrue for expenses which are invoiced after the period-end, but relate to the current period.
For example, a telephone bill received one week after the period-end, which charges for the previous month. Here, we must accrue for the bill, as it relates to the prior period.
This is different from a creditor, which has been invoiced before the period-end, but remains unpaid at the period-end date.
The double-entry for accruals will be entered during the period-end adjustments.