Trial balance: definition, types and how to prepare

Published Monday 23 February 2026

Table of contents

• What is a trial balance?
• Why trial balances matter for your business
• Types of trial balances
• How to prepare a trial balance
• Common trial balance errors
• The role of trial balances in financial statements
• The importance of trial balances for small businesses
• FAQs on trial balances

Key takeaways

• Prepare a trial balance regularly by listing all account names, recording debit balances (assets and expenses) in one column and credit balances (liabilities, capital, and income) in another, then verify that both columns total the same amount to catch mathematical errors before they affect your financial statements.
• Use trial balances as your foundation for creating accurate financial statements and ensuring audit readiness, as they help you spot transcription errors, omissions, and misclassifications that could lead to costly business decisions based on incorrect information.
• Implement the three types of trial balances at different stages: create an unadjusted trial balance to spot initial errors, prepare an adjusted trial balance after corrections to form the basis for financial statements, and complete a post-closing trial balance to confirm your ledger is ready for the next accounting period.
• Automate your trial balance preparation using accounting software to reduce manual errors and save time, while still double-checking figures and getting a second pair of eyes to review your work when totals don't match.

What is a trial balance?

A trial balance is a financial report that lists the closing balances of all accounts in your general ledger at a specific point in time.

It's strictly for internal use within the accounting department, not for external parties other than auditors. It helps you check that your books are mathematically accurate before preparing financial statements or completing an audit.

Many businesses create a trial balance as the first step in closing their books at the end of an accounting period.

Components of a trial balance

The trial balance has a simple three-column layout:

• Account names: list all ledger accounts from your chart of accounts on the left
• Debit balances: record assets and expense accounts in the middle column
• Credit balances: record liabilities, capital, and income in the right column

You can omit accounts you haven't used during the period. The totals of the debit and credit columns should match.

Trial balance example

Here's an example of a trial balance showing closing balances at the end of a financial period.

The account names go in the far left column. All debit and credit balances from the general ledger are recorded in the 'Debit' and 'Credit' columns accordingly. The debit and credit columns total the same amount.

Why trial balances matter for your business

A trial balance helps you catch errors before they become costly problems, which can be substantial. In one case, financial misreporting led to a company's income being overstated by $200–$250 million. Running one regularly gives you confidence that your books are accurate and your business is on solid financial ground.

Here's why trial balances matter for small businesses:

• Error detection: spot mathematical mistakes before they affect your financial statements
• Audit readiness: provide a clear record that makes tax time and audits smoother
• Financial accuracy: verify that every transaction is recorded correctly
• Better decisions: build confidence that your numbers reflect your true financial position

Without a trial balance, small errors can snowball into major issues that affect your cash flow visibility, tax compliance, and business decisions.

Types of trial balances

There are three types of trial balances: the unadjusted trial balance, adjusted trial balance, and the post-closing trial balance. Each type follows the same format but happens at a different stage of the accounting process:

• Unadjusted trial balance: captures initial data from your general ledger and helps you spot obvious errors or entries that need adjusting
• Adjusted trial balance: includes corrected entries and forms the basis for preparing your financial statements
• Post-closing trial balance: confirms the ledger is balanced and ready for the next accounting period

Unadjusted trial balance

An unadjusted trial balance captures all initial data from your general ledger. It records day-to-day transactions that can then be adjusted to balance the ledger.

You or your accountant uses this trial balance to make adjustments such as:

• Accruals: adding unpaid bills or earned revenue not yet recorded
• Deferrals: recognising income only when it's earned
• Depreciation: spreading the cost of assets like vehicles over several years

Adjusting these figures gives you a clearer view of your business's financial position.

Adjusted trial balance

An adjusted trial balance summarises the final balances in all accounts after you've made your adjustments. You prepare it after the unadjusted trial balance but before your financial statements.

Use this trial balance as the foundation for preparing your financial reports.

Post-closing trial balance

A post-closing trial balance confirms that all debit and credit balances are equal after you've closed your temporary accounts. You prepare it after finalising your financial statements.

During the closing process, you move balances from temporary accounts (revenue, expenses, and dividends) into retained earnings. The post-closing trial balance ensures your general ledger is ready for the next accounting period because it contains the beginning balances for the next year's accounting activities.

How to prepare a trial balance

Preparing a trial balance confirms your books are mathematically accurate before you create financial statements. Follow these steps to prepare one:

1. Gather your general ledger data: collect all account balances from your general ledger for the period you're closing
2. List all account names: enter each account from your chart of accounts in the left column
3. Record debit balances: enter asset and expense account balances in the debit column
4. Record credit balances: enter liability, capital, and income account balances in the credit column
5. Calculate column totals: add up each column separately
6. Verify totals match: if debits equal credits, your trial balance is complete; if not, review your entries for errors

You can prepare a trial balance whenever needed. Xero accounting software automates much of this process, reducing manual errors and saving you time.

Common trial balance errors

Simple mistakes can cause major problems in your trial balance. Watch out for:

• Transcription errors: data entry mistakes like mistyping $500 as $5,000
• Omission errors: leaving transactions out of the accounts entirely
• Misclassifications: recording transactions under the wrong account headings

Even minor errors can alter your financial statements and lead to business decisions based on incorrect information.

How to correct trial balance errors

Simple mistakes are easy to fix with the right approach:

• Recheck your trial balance: review your numbers thoroughly, take a break, and get a second pair of eyes to spot typos
• Verify your ledger: confirm your ledger figures are correct before inputting them, and re-verify any unreliable amounts
• Use accounting software: automate calculations with tools like Xero to prevent mistyped entries and save time on manual checks

The role of trial balances in financial statements

Trial balances form the foundation for preparing balance sheets and other financial statements. They're also essential documents for auditors.

Your bookkeeper or accountant uses the trial balance to verify that debit and credit totals match. If they don't, a missing entry or copying error may be the cause. Once mistakes are corrected, the adjusted trial balance can be used to prepare your financial reports.

Matching totals don't guarantee accuracy. Errors like missing transactions or incorrect account classifications can still exist even when the columns balance.

The importance of trial balances for small businesses

Trial balances help keep your financial statements accurate and give you confidence that your numbers reflect your business's true financial health. With accurate books, you can meet compliance requirements and make better-informed decisions.

Xero accounting software streamlines your accounting practices so you can easily record transactions, prepare trial balances, and produce accurate financial reports. Try Xero free for one month and see how automation can save you time.

FAQs on trial balances

Here are answers to some common questions about trial balances.

What are the three rules of trial balances?

1. Total debits must equal total credits: this confirms your double-entry bookkeeping is mathematically accurate
2. Use the correct chart of accounts: categorise each transaction under the right account heading
3. Enter your data accurately: double-check figures to avoid transcription errors

What are the three main purposes of a trial balance?

1. Verify mathematical accuracy: confirm that total debits equal total credits in your ledger
2. Detect errors early: spot mistakes before preparing financial statements
3. Provide a foundation for reporting: use the balanced figures to create your balance sheet and other financial reports

What is the objective of the trial balance?

A trial balance verifies that your bookkeeping is mathematically accurate. If total debits equal total credits, your ledgers are likely error-free. If the totals differ, you'll need to find and fix the mistakes.

Trial balances also serve as the foundation for preparing your financial statements.

What is a trial balance vs a balance sheet?

A trial balance and a serve different purposes:

• Trial balance: an internal bookkeeping report that lists all general ledger balances to check for mathematical errors
• Balance sheet: a formal financial statement summarising your business's assets, liabilities, and owner's equity

The trial balance is the first step to creating a balance sheet. It verifies accuracy before you prepare your official financial statements.

How do you prepare the trial balance?

The main steps are covered in detail in the "How to prepare a trial balance" section. In brief: gather your general ledger data, list all account balances, separate debits and credits into columns, total each column, and verify the totals match.

Xero accounting software can automate this process, helping you avoid clerical mistakes and produce regular trial balances with ease.