Adjusting journal entry: understanding the backbone of accurate financial reporting
Imagine trying to measure your monthly spending but forgetting to include your unpaid electricity bill or the portion of your prepaid insurance that you have already used. Your numbers would look fine on paper, but they wouldn’t tell the truth. The same thing happens in accounting when businesses skip their adjusting journal entries. These adjustments are what make financial statements honest, complete, and useful.
1. Core concepts: journal and adjustment journal
Before going into adjusting journal entries, it helps to be clear about the basic definitions.
Definition of journal
A journal in accounting is a chronological record of all financial transactions of a business. Every transaction is written down first in the journal before being posted to the ledger accounts. This is often called the “book of original entry.”
Definition of accounting journal
The accounting journal is the formal record where each transaction is listed with:
- the date
- the affected accounts
- debits and credits
- a brief description or narration
Example of journal entry
If a company pays cash for office supplies worth $500, a simple journal entry would be:
- Debit: Office Supplies $500
- Credit: Cash $500
This is a regular journal entry, recorded at the time the transaction happens.
What is adjustment journal?
An adjustment journal (or adjusting journal) is a journal used to record transactions that update account balances at the end of an accounting period. These are not new business transactions; they are corrections or updates so that revenues and expenses match the period in which they actually occur.
What is meant by adjustment journal?
When accountants talk about an adjustment journal, they mean the journal used to record adjusting entries—entries that bring accounts to their proper balances under the accrual basis of accounting.
Definition of adjustment journal
An adjustment journal is the special part of the journal where end-of-period adjustments are recorded to correct, allocate, or defer income and expenses. It reflects items like accrued revenue, accrued expenses, prepaid expenses, and depreciation.
Definition of adjustment journal entry
An adjustment journal entry is a journal entry made at the end of an accounting period to recognize income or expenses that have been earned or incurred but not yet recorded, or to allocate previously recorded amounts over several periods.
What is adjustment journal entry?
An adjustment journal entry is prepared for the purpose of aligning the accounts with the actual financial position and results of operations at period-end, according to the accrual and matching principles.
Adjustment journal entry is prepared for
- Recording accrued revenues and accrued expenses
- Allocating prepaid expenses and unearned revenues
- Recording non-cash items such as depreciation and amortization
- Correcting earlier journal errors or omissions
2. Why adjusting journal entries exist
Adjustment is central in accrual accounting. Adjustment is the process of updating accounts to reflect economic reality, not just cash movement.
Adjustment journal is prepared on
Adjusting entries are usually prepared on the last day of the accounting period (month-end, quarter-end, or year-end) after most routine transactions have been recorded but before financial statements are finalized.
Function of adjustment journal is
- To apply the matching principle (matching revenue with related expenses)
- To ensure assets and liabilities are stated at proper amounts
- To shift amounts from temporary to correct categories (such as from prepaid asset to expense)
Correct journal function is to record all transactions as they occur. The accounting adjustment journal complements this by making sure those recorded transactions are properly timed and classified.
Function of adjustment journal entry is
- To adjust balances of accounts like prepaid expenses, accruals, inventory, and depreciation
- To prepare accounts for accurate income measurement
- To assist in producing reliable financial statements
What is the function of adjustment journal?
In simple terms: the adjustment journal function is to clean up and refine the raw accounting data so the final reports make sense.
Purpose of adjustment journal
- To avoid overstating or understating income
- To prevent misstating assets and liabilities
- To support compliance with accounting standards and internal policies
Benefits of adjustment journal
- More accurate measurement of profit or loss
- Stronger basis for management decisions
- Increased credibility with investors, lenders, and auditors
- Reduced risk of surprises or corrections in later periods
3. Main types of adjustment journal entries
Types of adjustment journal commonly include:
a) Accrued revenues
Revenue earned but not yet billed or collected.
Example of adjustment journal entry:
- Debit: Accounts Receivable
- Credit: Service Revenue
b) Accrued expenses
Expenses incurred but not yet paid or recorded, such as wages payable or interest payable.
Example of adjustment journal:
- Debit: Salary Expense
- Credit: Salaries Payable
c) Prepaid expenses
Amounts paid in advance, like insurance or rent, that need to be expensed over time.
Example of adjustment journal entry:
- Debit: Insurance Expense
- Credit: Prepaid Insurance
d) Unearned (deferred) revenue
Cash received before providing goods or services. As the service is delivered, revenue is recognized.
Example of adjustment journal:
- Debit: Unearned Revenue
- Credit: Service Revenue
e) Depreciation and amortization
Allocation of the cost of long-term assets over their useful lives.
Accumulated depreciation adjustment journal:
- Debit: Depreciation Expense
- Credit: Accumulated Depreciation
f) Inventory and cost adjustments
End-of-period stock counts lead to adjustments between inventory and cost of goods sold.
4. Adjustment journal account and structure
Adjustment journal account
Each adjusting entry affects at least one income statement account (revenue or expense) and one balance sheet account (asset, liability, or equity). This is what ties the period’s performance to the financial position at the period-end.
Form of adjustment journal
An adjustment journal looks like any other accounting journal entry, containing:
- Date of adjustment
- Accounts debited and credited
- Amounts
- Brief description (for example “To record accrued interest”)
Adjustment journal material
The material used to prepare adjustment entries includes:
- Bank statements
- Invoices not yet recorded
- Contracts and agreements
- Schedules of prepaid items
- Fixed asset registers for depreciation
- Payroll records
- Inventory counts
Settlement journal vs adjustment journal
A settlement journal records the clearing or settlement of obligations, such as payment of invoices or closing of internal balances. An adjustment journal is focused on timing, allocation, and correction to align records with the period’s economic activity.
Income adjustment journal and expense adjustment journal
Income adjustment journal
Used to adjust revenue-related accounts:
- Shifting amounts from unearned revenue to earned revenue
- Recording interest income that has accrued
- Correcting revenue recorded in the wrong period
Expense adjustment journal
Used to adjust expense-related accounts:
- Accrued wages or utilities
- Allocation of prepaid expenses into the current period
- Depreciation or amortization expenses
5. Detailed examples of adjustment journal entries
Example of adjustment journal entry – accrued salary
Assume employees earned $10,000 of salary in the last week of December that will be paid in January and is not yet recorded.
Adjusting entry at year-end:
- Debit: Salary Expense $10,000
- Credit: Salaries Payable $10,000
Effect: expense is recorded in the correct year, and the liability is recognized.
Example of adjustment journal entry – prepaid rent
A company pays $12,000 on October 1 for six months’ rent. At December 31, three months of rent have been used.
Initial entry (October 1):
- Debit: Prepaid Rent $12,000
- Credit: Cash $12,000
Adjustment at December 31:
Three months used = $6,000.
- Debit: Rent Expense $6,000
- Credit: Prepaid Rent $6,000
Effect: rent expense for the period is recognized, and the remaining prepaid rent stays as an asset.
Example of adjustment journal entry – accumulated depreciation
Equipment costing $60,000 with a useful life of 5 years and no salvage value results in annual depreciation of $12,000.
Year-end adjustment:
- Debit: Depreciation Expense $12,000
- Credit: Accumulated Depreciation – Equipment $12,000
This is a typical accumulated depreciation adjustment journal entry.
Example of adjustment journal entry – unearned revenue
A company receives $5,000 in advance in November for services to be provided over five months. At year-end, two months of services have been provided.
Initial entry on receipt:
- Debit: Cash $5,000
- Credit: Unearned Revenue $5,000
Adjustment after two months:
Earned revenue = $2,000.
- Debit: Unearned Revenue $2,000
- Credit: Service Revenue $2,000
6. Adjustment account and accounting adjustment journal in practice
Adjustment account
Sometimes, especially in manual or educational settings, an “adjustment account” may be used as a summary account that gathers certain adjustments, particularly in the context of partnership accounts or consignment accounts. In modern software-based systems, the adjustment account concept is often embedded within modules and reports.
Accounting adjustment journal in modern systems
Most accounting software automates many adjustments, but accountants still:
- Review estimates (like doubtful debts or useful lives of assets)
- Confirm cut-off (making sure revenue and expenses belong to the right period)
- Make manual entries where automation cannot capture the nuance
Adjustment is therefore both a technical and judgment-based process. Adjustment journal is still needed even in highly automated environments to refine and confirm the numbers.
7. Risks, challenges, and controls
Challenges and risks around adjustment journal entry
- Incorrect estimates (for example, underestimating bad debts)
- Delayed or missed adjustments leading to distorted profits
- Intentional manipulation of results using inappropriate adjustments
Because adjustment journal entry is prepared for aligning reported results with economic reality, it can also be misused if not properly controlled.
Controls to strengthen adjustment journal function
- Clear policies on when and how adjustments are recorded
- Segregation of duties: preparer, reviewer, and approver
- Documentation of assumptions behind estimates
- Regular review of recurring adjusting entries
8. How adjusting entries shape future periods
When one period ends, another begins. Adjustment journal is prepared on the closing date, but its impact flows into the opening balances of the next period. For example:
- Accrued expenses become starting liabilities
- Unearned revenue becomes an obligation carried forward
- Accumulated depreciation continues to build up, affecting asset values and future depreciation
Because function of adjustment journal entry is to bridge each accounting period correctly, it directly influences trend analysis, budgeting, tax calculations, and performance evaluations over time.
When businesses understand what is meant by adjustment journal, use the right types of adjustment journal, and apply the purpose of adjustment journal consistently, their financial statements become more than just numbers on a page—they become a reliable story of how the business is actually performing.
