A number of errors committed by people charged with preparing books of accounts may not be detected by the trial balance, some are;
Errors of original entry. These originate from source documents like vouchers, invoices.
Errors of omission. These occur where no record of a particular transaction is made and hence not reflected on either side of the books of accounts.
Errors of commission. These arise where a wrong person's account or account tittle is given.
Compensating errors. These are errors that when committed on the debit side of an account, a similar error is committed on the credit side of another account so that in the end, they cancel out.
Complete reversal of entries. These are errors where what was supposed to be written on the credit side of an account is written on the debit side and vice versa and the accounts will balance.
Errors of principal. This is where a wrong class of account is entered with a figure but the double entry principal is observed for instance a sales account may be named purchases account.
Errors of original entry. These originate from source documents like vouchers, invoices.
Errors of omission. These occur where no record of a particular transaction is made and hence not reflected on either side of the books of accounts.
Errors of commission. These arise where a wrong person's account or account tittle is given.
Compensating errors. These are errors that when committed on the debit side of an account, a similar error is committed on the credit side of another account so that in the end, they cancel out.
Complete reversal of entries. These are errors where what was supposed to be written on the credit side of an account is written on the debit side and vice versa and the accounts will balance.
Errors of principal. This is where a wrong class of account is entered with a figure but the double entry principal is observed for instance a sales account may be named purchases account.