Objectives of Preparing the Trial Balance

The trial balance is not an end in itself — it is a tool. Before financial statements can be trusted, the bookkeeper must first check whether the double-entry records are arithmetically sound. The trial balance serves three clear objectives, each building on the one before it.

1. To ascertain the arithmetical accuracy of the ledger accounts

Every transaction is recorded with equal debits and credits. If all postings have been done correctly, the total of all debit balances in the ledger must equal the total of all credit balances. The trial balance is the first check of this equality. If the two sides match, it gives reasonable assurance that no arithmetic mistake has been made in posting or totalling. A mismatch, on the other hand, is a definite signal that something is wrong.

2. To help in locating errors

When the trial balance does not tally, the difference between the debit and credit totals becomes a starting point for investigation. Common checks include:

• Re-adding the trial balance columns.
• Verifying that all ledger balances have been transferred correctly.
• Checking whether a balance has been placed in the wrong column (debit instead of credit, or vice versa).
• Looking for a missing amount equal to half the difference (which may indicate a posting on the wrong side).
• Searching for a missing amount equal to the difference itself (which may indicate a complete omission of a balance).

The trial balance thus narrows down the search, saving time and effort.

3. To help in the preparation of the financial statements

Once the trial balance tallies, it provides a ready list of all ledger balances classified as either debit or credit. This list is the direct source for preparing the Profit & Loss Account and the Balance Sheet. Revenue and expense balances go into the Profit & Loss Account; asset, liability, and capital balances go into the Balance Sheet. Without a trial balance, the accountant would have to scan every ledger account individually — a slow and error-prone process.

The illustrative trial balance given in the textbook shows the standard format: