The 4 types of adjusting entries in accounting are as follows:
Accrued expenses: It is recognising the expenses before payment in cash.
Accrued revenues: It refers to the situation where revenue is earned but not recorded in the current accounting period as invoice has not been raised and no cash payment is received.
Deferred expenses: Amount that is paid in advance for using assets that provide benefits over more than one accounting period.
Deferred revenues: It refers to the situation in which cash is received before the revenue is earned.