A trial balance is one of the most important checkpoints in the bookkeeping and accounting process. It brings the balances of different ledger accounts into one place so a bookkeeper can check whether total debits equal total credits before moving further into financial reporting.
For accounting beginners, the concept is easier than it first appears. Every transaction recorded using double-entry accounting affects at least two accounts. After those transactions are posted to the general ledger, the ending balances of the accounts are collected in a trial balance.
If the debit and credit totals agree, it is a useful sign that the books are mathematically balanced. However, a balanced trial balance does not automatically mean that every transaction was recorded perfectly. Classification errors, omitted transactions and some other mistakes can still exist.
What Is a Trial Balance?
A trial balance is a report listing the balances of general ledger accounts at a specific point in time, normally separated into debit and credit columns.
The main purpose is to check whether:
Total Debit Balances = Total Credit Balances
Suppose a small business has the following accounts:
- Bank
- Accounts Receivable
- Equipment
- Accounts Payable
- Owner’s Equity
- Service Revenue
- Rent Expense
- Advertising Expense
Instead of reviewing each ledger account separately, the bookkeeper can place their ending balances into one trial balance.
For example:
| Account | Debit | Credit |
|---|---|---|
| Bank | $10,000 | |
| Accounts Receivable | $4,000 | |
| Equipment | $6,000 | |
| Accounts Payable | $3,000 | |
| Owner’s Equity | $10,000 | |
| Service Revenue | $9,000 | |
| Rent Expense | $1,500 | |
| Advertising Expense | $500 | |
| Total | $22,000 | $22,000 |
The debit and credit totals agree.
That tells the bookkeeper that the ledger is mathematically balanced based on the amounts included in the report.
A trial balance makes much more sense once you understand how accounts are organized. If you haven’t already, read our guide to the chart of accounts to understand how businesses structure assets, liabilities, equity, revenue and expense accounts.
Why Is a TB Important in Accounting?
The trial balance accounting process provides an important checkpoint between transaction recording and financial reporting.
It helps a bookkeeper review the books before moving to the next stage.
It checks debit and credit equality
Double-entry bookkeeping is based on the principle that entries have equal debit and credit effects.
If total debits in the trial balance are:
$75,000
but total credits are:
$74,200
there is an $800 difference that needs investigation.
Something may have been:
- Posted incorrectly
- Entered on only one side
- Added incorrectly
- Transferred incorrectly from the ledger
The difference gives the bookkeeper a starting point for investigation.
It brings ledger balances together
A company may have dozens or hundreds of general ledger accounts.
The trial balance summarizes their balances into a single report.
This makes it easier to review:
- Cash
- Receivables
- Payables
- Revenue
- Expenses
- Assets
- Liabilities
- Equity
It supports adjusting entries
Before financial statements are finalized, some accounts may require adjustments.
These can include:
- Accrued expenses
- Prepaid expenses
- Depreciation
- Accrued revenue
- Unearned revenue
- Allowances or estimates
After necessary adjustments are posted, an adjusted trial balance can be prepared.
It supports financial statement preparation
The adjusted account balances become an important input into financial reporting.
The trial balance therefore sits between the general ledger and the final financial statements in the accounting cycle.
Students interested in seeing this full process from transaction recording through reporting can review Full-Cycle Bookkeeping in Canada.
What Is on the TB?
A common question from beginners is:
What is on the TB?
Generally, the report contains the accounts from the general ledger that have balances at the reporting point.
These can include:
Assets
- Cash
- Bank accounts
- Accounts receivable
- Inventory
- Prepaid expenses
- Equipment
- Vehicles
Liabilities
- Accounts payable
- Credit cards payable
- Payroll liabilities
- Loans payable
- Accrued liabilities
Equity
- Owner’s capital
- Share capital
- Retained earnings
- Other appropriate equity accounts
Revenue
- Sales revenue
- Service revenue
- Other operating revenue
Expenses
- Advertising
- Bank charges
- Insurance
- Rent
- Salaries
- Software
- Telephone
- Utilities
Each account normally appears with either a debit or credit balance.
The exact accounts depend on the business.
A consulting company and a retail business will not necessarily have the same trial balance because their charts of accounts and activities are different.
Trial Balance Format
A basic TB format is simple.
It normally includes:
- Account name
- Debit balance
- Credit balance
- Total debit amount
- Total credit amount
A simple format looks like this:
| Account Name | Debit | Credit |
|---|---|---|
| Bank | $15,000 | |
| Accounts Receivable | $7,500 | |
| Equipment | $12,000 | |
| Accounts Payable | $5,500 | |
| Loan Payable | $8,000 | |
| Capital | $12,000 | |
| Revenue | $15,000 | |
| Rent Expense | $3,500 | |
| Salaries Expense | $2,500 | |
| Total | $40,500 | $40,500 |
The report may also contain account numbers, depending on the accounting system.
For example:
| Account No. | Account | Debit | Credit |
|---|---|---|---|
| 1010 | Bank | $15,000 | |
| 1100 | Accounts Receivable | $7,500 | |
| 1500 | Equipment | $12,000 | |
| 2000 | Accounts Payable | $5,500 |
Account numbering connects directly to the company’s chart of accounts.
How to Prepare a TB in 7 Easy Steps
Understanding the concept is useful, but accounting students should also know how to prepare one.
Step 1: Make Sure Transactions Have Been Recorded
Before preparing the TB, confirm that the transactions for the period have been entered into the accounting records.
Examples include:
- Customer invoices
- Customer payments
- Supplier invoices
- Supplier payments
- Bank transactions
- Payroll
- Expenses
- Revenue
- Asset purchases
Missing transactions will make the report incomplete even if its debit and credit totals happen to match.
Step 2: Review the General Ledger
The next step is to review the general ledger.
The general ledger contains the activity and balance for each account.
For example, the bank ledger might include:
- Opening balance
- Customer deposits
- Supplier payments
- Payroll withdrawals
- Rent
- Bank charges
The bookkeeper determines the ending balance of each ledger account.
Understanding how the general ledger connects with the account structure is one reason our Chart of Accounts guide is useful before learning trial balances.
Step 3: Determine Each Account’s Ending Balance
Calculate the balance remaining in each ledger account.
Suppose the bank account contains:
Opening balance: $10,000
Customer receipts: +$8,000
Payments: −$5,000
Ending bank balance:
$13,000
That $13,000 becomes the amount presented for the Bank account in the trial balance.
Repeat the process for every relevant general ledger account.
Step 4: Place Debit Balances in the Debit Column
Accounts with debit balances go into the debit column.
Common examples often include:
- Assets
- Expenses
For example:
Bank — $13,000 debit
Accounts Receivable — $5,000 debit
Equipment — $8,000 debit
Rent Expense — $2,000 debit
However, students should learn the underlying accounting rules instead of simply memorizing that every account in a broad category will behave identically in every situation.
Step 5: Place Credit Balances in the Credit Column
Accounts with credit balances go into the credit column.
Common examples often include:
- Liabilities
- Equity
- Revenue
For example:
Accounts Payable — $4,000 credit
Loan Payable — $6,000 credit
Owner’s Equity — $10,000 credit
Service Revenue — $8,000 credit
Again, the key is understanding the actual account balance.
Step 6: Add Both Columns
Calculate the total debit balances.
Then calculate the total credit balances.
Suppose you get:
Total Debits: $56,400
Total Credits: $56,400
The TB agrees mathematically.
If instead you get:
Debits: $56,400
Credits: $55,900
you have a:
$500 difference
That difference needs investigation.
Step 7: Review the TB Before Moving Forward
Do not stop simply because the two columns match.
Review the balances for reasonableness.
Ask:
- Is the bank balance reasonable?
- Are receivables unusually high?
- Are any expense accounts negative?
- Does an account have an unexpected debit or credit balance?
- Are duplicate accounts being used?
- Were all bank charges recorded?
- Have important period-end adjustments been considered?
The trial balance is not only an arithmetic test.
It is also an opportunity to review the books.
For example, confirming the cash balance may involve completing a bank reconciliation before the reporting process moves forward.
Practical TB Example
Let’s work through a more complete trial balance example.
A small consulting business has these ending ledger balances:
- Bank: $20,000 debit
- Accounts Receivable: $7,000 debit
- Equipment: $10,000 debit
- Accounts Payable: $4,000 credit
- Loan Payable: $8,000 credit
- Owner’s Equity: $15,000 credit
- Service Revenue: $18,000 credit
- Rent Expense: $4,000 debit
- Salaries Expense: $3,000 debit
- Advertising Expense: $1,000 debit
The sample trial balance would look like this:
| Account | Debit | Credit |
|---|---|---|
| Bank | $20,000 | |
| Accounts Receivable | $7,000 | |
| Equipment | $10,000 | |
| Accounts Payable | $4,000 | |
| Loan Payable | $8,000 | |
| Owner’s Equity | $15,000 | |
| Service Revenue | $18,000 | |
| Rent Expense | $4,000 | |
| Salaries Expense | $3,000 | |
| Advertising Expense | $1,000 | |
| Total | $45,000 | $45,000 |
The totals agree at $45,000.
This is a balanced trial balance.
But imagine the advertising expense had accidentally been entered as $100 instead of $1,000 on only one side of a manual transfer.
The totals could differ by $900.
The bookkeeper would need to trace the error.
What If a TB Does Not Balance?
An unequal trial balance tells you that something needs investigation.
Start systematically.
Recalculate the totals
Sometimes the problem is simply an addition error.
Re-add both columns.
Check ledger balances
Make sure each general ledger balance was transferred correctly.
A balance of:
$5,400
might accidentally have been copied as:
$4,500
Look for a transaction equal to the difference
Suppose the TB is off by exactly $800.
Search for:
- An $800 entry
- A transaction posted to only one side
- An $800 balance omitted from the report
Check for transposition errors
A transposition happens when digits are reversed.
For example:
$1,260
entered as:
$1,620
Difference:
$360
These errors can sometimes be identified by analyzing the amount of the difference.
Check debit and credit placement
An account may have been placed in the wrong column.
Suppose a $2,000 debit balance was entered as a $2,000 credit.
The resulting difference between the columns would be $4,000.
Review journal postings
Confirm that journal entries were posted to the correct ledger accounts and amounts.
A systematic approach is better than making random changes until the report balances.
What Errors Can a Trial Balance Detect?
A trial balance is useful, but it has limitations.
It can help reveal certain arithmetic or posting problems.
Examples can include:
- Unequal debit and credit postings
- An account balance transferred incorrectly
- Incorrect column totals
- Certain one-sided posting errors
- Some debit/credit placement errors
But a balanced report does not prove that every transaction is correct.
That distinction is important for accounting beginners.
What Errors Can a TB Not Detect?
Imagine a company pays $1,000 for office rent.
The bookkeeper correctly records:
Debit: Expense $1,000
Credit: Bank $1,000
But accidentally uses Advertising Expense instead of Rent Expense.
The total debits still equal total credits.
The trial balance can therefore remain balanced even though the classification is wrong.
Other errors may also leave debits and credits equal.
Examples include:
Completely omitted transaction
If both sides of a transaction are never recorded, the TB may still balance.
Wrong account with correct debit or credit
An expense may be posted to the wrong expense account.
Equal error on both sides
If both debit and credit are recorded using the same incorrect amount, the totals can still agree.
Duplicate transaction
If an entire balanced journal entry is entered twice, debits and credits still remain equal.
This is why bookkeeping requires:
- Reconciliation
- Document review
- Account analysis
- Reasonableness checks
- Period-end review
A trial balance is a control, not a guarantee.
What Is an Unadjusted TB?
An unadjusted trial balance is generally prepared before period-end adjusting entries are posted.
It reflects ledger balances based on the transactions recorded up to that point.
For example, the business may have:
- Rent
- Sales
- Bank activity
- Payroll
- Accounts payable
- Accounts receivable
already entered.
However, period-end adjustments may still be required.
These might involve:
- Depreciation
- Accrued expenses
- Prepaid expenses
- Accrued revenue
- Unearned revenue
- Other adjusting entries
The unadjusted trial balance provides the starting point for identifying and recording those adjustments.
What Is an Adjusted Trial Balance?
An adjusted trial balance is prepared after necessary adjusting entries have been recorded and posted.
This is an important stage because financial statements should generally be based on properly adjusted account balances.
Imagine that the unadjusted books show:
Insurance Expense: $0
But part of a prepaid insurance amount has now been used during the accounting period.
An adjusting entry may be required to recognize the appropriate expense.
Once the adjustment is posted, the updated account balance appears in the adjusted trial balance.
The basic sequence looks like:
Unadjusted Trial Balance
↓
Adjusting Journal Entries
↓
Adjusted Trial Balance
↓
Financial Statements
We will cover adjusting journal entries in detail in the next article of this GTGH accounting series.
Trial Balance and Adjusted Trial Balance: What’s the Difference?
The main difference is timing.
| Unadjusted Trial Balance | Adjusted Trial Balance |
|---|---|
| Prepared before adjustments | Prepared after adjustments |
| Contains existing ledger balances | Contains updated ledger balances |
| Used to identify required adjustments | Used to support financial reporting |
| Earlier stage of accounting cycle | Later stage of accounting cycle |
This distinction is especially important when students begin learning year-end and month-end accounting procedures.
What Is a Post-Closing Trial Balance?
A post-closing trial balance is prepared after closing entries have been completed.
Temporary accounts such as certain revenue and expense accounts are closed as part of the period-end process.
The post-closing trial balance is therefore focused on the accounts that continue into the next accounting period.
These typically include permanent balance-sheet accounts such as:
- Assets
- Liabilities
- Equity accounts that remain open
Its purpose is to confirm that the ledger remains balanced after the closing process.
A simplified accounting sequence may look like:
Transactions
↓
Ledger
↓
Unadjusted Trial Balance
↓
Adjustments
↓
Adjusted Trial Balance
↓
Financial Statements
↓
Closing Entries
↓
Post-Closing Trial Balance
Understanding this sequence gives bookkeeping students a much clearer picture of the complete accounting cycle.
Trial Balance vs Balance Sheet
The terms sound similar, but a trial balance and balance sheet serve different purposes.
| Trial Balance | Balance Sheet |
|---|---|
| Internal accounting report | Financial statement |
| Lists ledger account balances | Presents assets, liabilities and equity |
| Contains debit and credit columns | Uses financial statement presentation |
| Can include revenue and expenses | Focuses on financial position |
| Helps verify ledger balance | Shows financial position at a point in time |
| Used during accounting process | Used for financial reporting |
Example
A trial balance may include:
- Cash
- Accounts Receivable
- Accounts Payable
- Revenue
- Rent Expense
- Advertising Expense
A balance sheet generally focuses on:
Assets
Liabilities
Equity
Revenue and expense information normally feeds into other financial reporting rather than being presented as individual trial-balance lines on the balance sheet.
Therefore:
Trial balance ≠ Balance sheet
The trial balance helps accountants get to reliable financial statements.
Trial Balance vs General Ledger
Another common beginner question is the difference between the general ledger and trial balance.
General Ledger
The ledger contains individual transaction activity within accounts.
For example, the Bank ledger may include:
- $5,000 customer deposit
- $1,000 rent payment
- $800 supplier payment
- $30 bank charge
Trial Balance
The trial balance normally displays the ending balance of the Bank account.
Instead of showing every transaction, it may simply show:
Bank — $13,170 Debit
An easy way to remember:
General ledger = detailed activity
Trial balance = summarized account balances
How Chart of Accounts, Ledger and Trial Balance Connect
These three concepts are closely related.
Chart of Accounts
Defines which accounts exist.
Example:
1010 Bank
1100 Accounts Receivable
2000 Accounts Payable
4000 Service Revenue
General Ledger
Stores the financial activity recorded in those accounts.
Trial Balance
Summarizes the resulting account balances.
So the flow is:
Chart of Accounts → Transactions → General Ledger → Trial Balance
If you want a practical explanation of the first stage, read our complete Chart of Accounts guide.
How Bank Reconciliation Affects the Trial Balance
Bank reconciliation and the trial balance perform different jobs, but they are connected.
A trial balance may show:
Bank Account: $25,000
That balance came from the accounting records.
But is it accurate?
A bank reconciliation compares that accounting balance with the actual bank statement and identifies issues such as:
- Bank charges
- Interest
- Outstanding cheques
- Deposits in transit
- Missing transactions
- Recording errors
Some reconciliation findings may require entries in the accounting records.
Once those corrections are posted, the bank ledger balance — and therefore the trial balance — may change.
This is why practical accounting tasks should not be learned in isolation.
See our newly published Bank Reconciliation: 7 Easy Steps for Accurate Books for the complete process.
Trial Balance in Accounting Software
Modern accounting software can generate a trial balance quickly.
Instead of manually collecting every ledger balance, users can select a reporting period and generate the report.
But this does not eliminate the need for accounting knowledge.
A bookkeeper should still understand:
- Why an account has a debit or credit balance
- Whether the selected reporting dates are correct
- Whether all transactions have been entered
- Whether bank accounts are reconciled
- Whether accounts need adjustments
- Whether unusual balances require investigation
- Whether the chart of accounts is structured correctly
Software can calculate the report.
It cannot automatically guarantee that every underlying transaction has been classified correctly.
For an overview of tools used in bookkeeping and accounting, read Best Accounting Software in Canada.
Common Trial Balance Mistakes to Avoid
1. Assuming a balanced trial balance means perfect books
This is probably the biggest mistake.
Equal totals only tell you that the debit and credit amounts included in the report agree mathematically.
2. Putting a balance in the wrong column
A debit balance entered as a credit can create a significant difference.
3. Omitting a ledger account
Every relevant account balance needs to be considered.
4. Using the wrong reporting period
Always confirm the report dates.
5. Ignoring unusual balances
An expense account with a credit balance or liability account with an unexpected debit balance may deserve investigation.
It is not automatically wrong, but it should be understood.
6. Skipping bank reconciliation
The trial balance can be mathematically balanced even when the accounting bank balance contains errors.
7. Failing to post adjusting entries
A pre-adjustment report may not contain the final amounts required for proper financial reporting.
8. Changing balances just to make the totals agree
Never create unsupported entries simply to force a trial balance to balance.
Find the actual cause.
Why Trial Balance Skills Matter for Bookkeepers
A trial balance connects many practical bookkeeping responsibilities.
To understand it properly, a student needs familiarity with:
- Chart of accounts
- Journal entries
- General ledger
- Debit and credit rules
- Bank reconciliation
- Accounts payable
- Accounts receivable
- Adjusting entries
- Financial statements
- Accounting software
That’s why it is a useful practical training exercise.
A bookkeeper who can generate a report but cannot explain the balances has only learned the software step.
A stronger accounting professional can look at a trial balance and ask:
Why is this balance here?
Does it make sense?
Was the account reconciled?
Are adjustments required?
Does anything look unusual?
That analytical ability becomes increasingly important as bookkeeping responsibilities grow.
Students who want hands-on practice with real bookkeeping workflows can explore GTGH’s practical bookkeeping course.
You can also read Bookkeeping vs Accounting in Canada to understand how bookkeeping tasks connect with broader accounting responsibilities.
Frequently Asked Questions About Trial Balance
What is a trial balance in simple words?
A trial balance is a report that lists the balances of general ledger accounts in debit and credit columns. It is used to check whether total debits equal total credits before moving further into the accounting and financial reporting process.
What is the purpose of a trial balance?
Its main purpose is to summarize ledger balances and confirm that debit and credit totals agree. It can help identify certain posting or arithmetic errors and provides a useful starting point for adjusting entries and financial statement preparation.
What is included in a trial balance?
A trial balance can contain asset, liability, equity, revenue and expense account balances from the general ledger. Common examples include Bank, Accounts Receivable, Equipment, Accounts Payable, Revenue, Rent Expense and Salaries Expense.
What is a trial balance example?
For example, a business could have $20,000 in Bank, $7,000 in Accounts Receivable and $18,000 in Service Revenue along with other accounts. The balances are listed in debit and credit columns, and the total of each column should agree.
What is an adjusted trial balance?
An adjusted trial balance is prepared after period-end adjusting journal entries have been posted. It contains updated ledger balances and is generally used as an important step before preparing financial statements.
What is an unadjusted trial balance?
An unadjusted trial balance is prepared before period-end adjustments. It summarizes ledger balances based on transactions recorded up to that point.
What is a post-closing trial balance?
A post-closing trial balance is prepared after closing entries have been completed. It helps confirm that the remaining permanent ledger accounts continue to have equal debit and credit totals.
What is the difference between trial balance and balance sheet?
A trial balance is an internal accounting report containing ledger account balances in debit and credit columns. A balance sheet is a financial statement showing a company’s assets, liabilities and equity at a specific point in time.
Can a trial balance balance and still contain errors?
Yes. A trial balance can balance even when transactions are omitted, duplicated, recorded for the wrong equal amount, or classified into the wrong accounts. That is why reconciliation and review are still necessary.
Final Thoughts
A trial balance is one of the most useful checkpoints in the accounting cycle.
It takes the balances sitting inside the general ledger and presents them together so a bookkeeper can verify that debit and credit totals agree.
But the most important lesson is this:
A balanced trial balance does not automatically mean error-free accounting.
Bookkeepers still need to review account classifications, reconcile bank accounts, investigate unusual balances and post required adjusting entries.
For beginners, the best learning sequence is:
Chart of Accounts → Journal Entries → General Ledger → Bank Reconciliation → Trial Balance → Adjusting Entries → Financial Statements
Understanding how these steps connect is much more valuable than memorizing isolated definitions.
If you want practical experience working with trial balances, bank reconciliation, account setup, journal entries, AP/AR and financial reporting, explore the Get Trained Get Hired Bookkeeping Course.
