Accrual Accounting and Period-End Adjustments

Introduction

Financial statements divide an entity’s continuous activities into reporting periods. Cash receipts and payments, however, do not necessarily occur in the periods in which revenues are earned or expenses are incurred. Accrual accounting addresses this timing difference by recognizing economic events in the periods to which they relate.

Period-end adjustments update ledger balances before financial statements are prepared. They commonly address accrued revenues and expenses, prepayments, unearned revenue, depreciation, credit losses, provisions and inventory. Adjustments affect reported profit, assets and liabilities, but normally do not involve immediate cash flows.

Reliable adjustments require evidence, informed estimates and consistent accounting policies. They are therefore both a technical accounting task and an important area of professional judgment, governance and audit scrutiny.

Learning Objectives

After completing this chapter, students should be able to:

1. Explain accrual accounting and the purpose of period-end adjustments.
2. Account for accrued and deferred revenues and expenses.
3. Calculate and record depreciation and distinguish it from asset valuation.
4. Recognize, measure, use and reverse provisions and distinguish them from contingencies.
5. Apply allowance-based accounting for expected credit losses and bad-debt write-offs.
6. Record period-end inventory adjustments under periodic and perpetual systems.
7. Prepare and interpret an adjusted trial balance.
8. Evaluate how estimates, policies, errors and managerial incentives affect reported performance.

1. The Accrual Basis of Accounting

Under accrual accounting, revenue is recognized when the relevant performance obligation is satisfied or the earning activity occurs, subject to the applicable reporting framework. Expenses are recognized when resources are consumed or liabilities arise, rather than simply when cash is paid.

Cash flow and profit therefore measure different phenomena. Cash flow reports movements in cash; profit measures performance based on recognized revenues and expenses.

A simplified relationship is:

This is not a cash-flow formula. Recognized revenue may include amounts not yet collected, while recognized expenses may include obligations not yet paid.

For example, if consulting services worth $8,000 are provided in December and collected in January, December recognizes revenue and a receivable. January records the collection of that receivable but no additional revenue.

1.1 Why adjustments are necessary

An unadjusted trial balance includes transactions recorded during the period but may omit:

• resources consumed gradually;
• services performed but not yet billed;
• obligations incurred but not yet invoiced;
• cash received before revenue is earned;
• depreciation of long-lived assets;
• estimated credit losses and provisions; and
• inventory consumed, lost or written down.

Adjustments ensure that asset, liability, revenue and expense balances satisfy recognition and measurement requirements at the reporting date.

Figure: Period-end adjustments connect the unadjusted ledger to reliable financial statements.

2. Accruals and Deferrals

Adjustments may be classified as accruals or deferrals. Accruals recognize an economic event before its related cash movement. Deferrals allocate an earlier cash movement to the appropriate later period.

2.1 Accrued revenue

Suppose an entity performs $6,000 of work by 31 December but will invoice the customer in January.

When payment is subsequently received, Cash is debited and the receivable is credited. Revenue is not recognized twice.

2.2 Accrued expenses

Assume employees have earned $4,500 of wages that will be paid next period.

This records both the period’s labor cost and the reporting-date obligation.

2.3 Prepaid expenses

A prepayment is an asset only while future economic benefits remain. If $12,000 is paid on 1 January for 12 months of insurance, three months have expired by 31 March.

The calculation assumes coverage is consumed evenly. The unexpired asset is $12{,}000 - $3{,}000 = $9{,}000.

If consumption is seasonal or usage-based, straight-line allocation may be inappropriate.

2.4 Unearned revenue

Cash received before goods or services are transferred normally creates a contract liability or unearned-revenue liability. If $15,000 was received in advance and 60% of the promised service has been completed, revenue of $15{,}000 × 60\% = $9{,}000 is recognized.

The remaining $6,000 continues to be reported as a liability.

2.5 Reversing entries

An entity may reverse selected accruals on the first day of the next period. For example, an accrued-wages entry can be reversed before the payroll is recorded. Reversing entries are optional processing tools; they do not alter total profit across periods and are generally unsuitable for depreciation, inventory closing entries and many valuation allowances.

3. Depreciation and Long-Lived Assets

Depreciation systematically allocates an asset’s depreciable amount over its useful life. It is not intended to measure market-value decline and does not accumulate cash for replacement.

3.1 Straight-line depreciation

where:

• D = annual depreciation expense in currency units;
• C = recognized asset cost;
• R = estimated residual value; and
• L = estimated useful life in years.

The formula assumes approximately even consumption of benefits. For an asset costing $64,000, with a $4,000 residual value and a five-year useful life:

For a full three-month quarter, depreciation is $12{,}000 × 3/12 = $3{,}000. Proration should reflect the entity’s consistently applied convention and actual availability for use.

3.2 Diminishing-balance depreciation

When benefits are consumed more heavily in earlier periods, depreciation may be calculated as:

where D_t is depreciation in period t, r is the annual depreciation rate, and NBV_t-1 is opening net book value. The method must not depreciate the asset below its residual value.

The usual entry is:

Accumulated depreciation is a contra-asset account. Changes in useful life, residual value or depreciation method resulting from new information are generally changes in accounting estimates and are applied prospectively under frameworks such as IFRS.

4. Expected Credit Losses and Bad Debts

Credit sales create collection risk. An allowance approach reports receivables at the amount expected to be collected and recognizes credit-loss effects without waiting for individual accounts to become definitively irrecoverable.

4.1 Adjustment to the required closing allowance

The period-end expense is not automatically equal to the required closing allowance. Where an allowance already exists, the adjustment is the change required to reach the estimated closing balance.

This formula assumes the existing balance is a credit. If write-offs or prior adjustments have produced a debit balance, that debit must also be eliminated when establishing the required credit balance.

Suppose gross trade receivables are $80,000 and an ageing analysis indicates a required closing allowance of $3,200. The existing allowance has a $2,100 credit balance. The required increase is:

If the existing credit allowance were $3,700, it would be reduced by $500: debit Loss allowance and credit ECL expense or an impairment-reversal account, subject to the reporting framework and chart of accounts.

4.2 Write-off and recovery

When a specific $900 receivable becomes uncollectible:

The write-off does not create a new expense if the expected loss was already allowed for. A later recovery commonly reinstates the receivable and allowance before recording the cash collection.

Under IFRS 9, entities may use a simplified lifetime expected-credit-loss approach for qualifying trade receivables. Ageing matrices should incorporate historical default experience, current conditions and reasonable forward-looking information. Mechanical use of an unsupported percentage is inadequate.

5. Provisions and Contingencies

A provision is a liability of uncertain timing or amount. Under IAS 37, it is recognized when:

1. a present legal or constructive obligation exists because of a past event;
2. an outflow of resources is probable; and
3. the amount can be estimated reliably.

Framework terminology and probability thresholds may differ across jurisdictions, so entities must apply the standards governing their reports.

5.1 Measurement

A provision is measured at the best estimate of the expenditure required to settle the obligation at the reporting date. For a large population of similar obligations, an expected-value calculation is often appropriate:

Here, p_i is the probability of outcome i, x_i is its settlement amount in currency units, and the probabilities sum to 1. For a single obligation, the most likely outcome may be a starting point, but other possible outcomes and risks must also be considered.

If the time value of money is material, the provision is measured at present value:

where CF_t is the expected cash outflow in period t, r is an appropriate pre-tax discount rate reflecting time value and relevant liability-specific risks not already included in cash flows, and T is the final settlement period. Care is needed to avoid counting risk twice.

5.2 Worked warranty provision

A manufacturer sells 1,000 units with warranties. It estimates that 80% will require no repair, 15% will require minor repairs costing $40 per unit, and 5% will require major repairs costing $180 per unit.

Initial recognition is:

If $4,200 of valid repair costs are later incurred:

Using the provision does not create a second warranty expense. At every reporting date, the remaining provision is re-estimated. If no obligation remains and $1,100 is unused, the entity debits the provision and credits warranty expense or a provision-reversal account.

5.3 Provisions versus contingencies

A provision is not a discretionary reserve for future operating losses. Management cannot smooth earnings by creating unsupported provisions in profitable years and releasing them in weaker years.

6. Inventory Adjustments

Inventory is generally measured at the lower of cost and net realizable value (NRV). NRV is estimated selling price in the ordinary course of business less estimated completion and selling costs.

6.1 Periodic inventory system

Under a periodic system, purchases are accumulated separately and cost of sales is determined at period end:

The formula assumes that relevant purchase-related costs, returns and discounts have been correctly included in net purchases.

Suppose opening inventory is $35,000, purchases are $40,000 and a physical count establishes closing inventory of $32,000.

One transparent set of period-end entries is:

The net debit to cost of sales is $43,000, while the adjusted trial balance reports inventory of $32,000. Some systems use a temporary income-summary account instead; the economic result is identical.

6.2 Perpetual inventory system and shrinkage

Under a perpetual system, inventory and cost of sales are updated with each sale. A physical count remains necessary. If the ledger reports $51,400 but counted inventory is $49,900, shrinkage is $1,500:

6.3 Write-down to NRV

If an item costs $10,000 but has NRV of $8,600, a $1,400 write-down is required:

Under IFRS, a previous write-down is reversed when NRV recovers, but only up to the amount of the original write-down. Requirements can differ under other frameworks.

7. Comprehensive Illustrative Case: Northstar Services and Supplies Ltd.

Background

Northstar is a fictional company that provides technical services and sells related supplies. It prepares quarterly financial statements. The reporting period is the three months ended 31 March 20X5. Amounts below are in dollars.

Problem

The unadjusted trial balance omits several quarter-end accruals, allocations, estimates and inventory entries.

Analysis and adjustments

Northstar identifies the following:

1. The $12,000 insurance policy began on 1 January and covers 12 months. Three months’ expense is $3,000; prepaid insurance remaining is $9,000.
2. Supplies counted at 31 March are $2,200. Supplies expense is $6{,}000 - $2{,}200 = $3{,}800.
3. Equipment depreciation is $12,000 annually. Quarterly depreciation is $3,000.
4. Wages accrued are $2,500; utilities accrued are $1,000.
5. Of the $9,000 unearned revenue, $6,000 has been earned.
6. Unbilled services of $4,500 have been completed.
7. After recording accrued revenue, gross receivables are $28,500. The required allowance is 3%, or $855. Because the existing credit allowance is $600, ECL expense is only $855 - $600 = $255.
8. Warranty costs are estimated at 2% of sales revenue: $90{,}000 × 2\% = $1{,}800.
9. Interest on the $25,000 loan is 8% annually. For three months, accrued interest is $25{,}000 × 8\% × 3/12 = $500.
10. Closing inventory from the physical count is $32,000. Periodic-system cost of sales is $43,000.

A pending customer lawsuit is assessed as possible rather than probable. Northstar does not recognize a provision but discloses the contingent liability if material and not remote.

Adjusted trial balance

Total revenue is $100,500. Total expenses are $88,855. Dividends are distributions, not expenses. Therefore:

Outcome and learning points

The adjusted trial balance balances and supports quarterly profit of $11,645. The case demonstrates that:

• quarterly depreciation and insurance must reflect a three-month reporting period;
• an ECL entry records the change needed to reach the required allowance;
• inventory entries affect both inventory and cost of sales;
• provisions recognize qualifying uncertain obligations; and
• contingencies do not automatically create recognized liabilities.

8. Estimates, Policies and Reported Performance

Many adjusted balances are estimates rather than directly observable amounts. Examples include useful lives, residual values, warranty claims, credit losses, NRV and litigation provisions.

8.1 Accounting estimates

A change in estimate results from new information or experience. It is generally applied prospectively. Shortening an asset’s remaining useful life increases future depreciation but does not automatically mean the original estimate was an error.

8.2 Accounting policies

Accounting policies are principles and measurement bases used in preparing statements, such as an eligible inventory cost formula or depreciation approach. Under IAS 8, a voluntary policy change is permitted only when it produces more reliable and relevant information and is generally applied retrospectively when practicable. The applicable framework may specify exceptions.

8.3 Errors

Prior-period errors arise from failure to use, or misuse of, reliable information available when statements were authorized. Material errors are generally corrected retrospectively rather than treated as current-period estimate changes.

8.4 Performance effects

These effects do not justify deliberate bias. Neutrality requires estimates within a reasonable range supported by evidence.

9. Controls, Ethics and Technology

Period-end adjustments are vulnerable to error and manipulation because many depend on cutoff decisions and estimates. Common risks include premature revenue, delayed expenses, unsupported provision releases, ignored inventory losses and optimistic credit assumptions.

Effective controls include:

• a formal closing calendar and responsibility matrix;
• reconciliations of subsidiary ledgers to control accounts;
• physical inventory counts and count instructions;
• documented assumptions and approval thresholds;
• review of subsequent receipts, invoices and claims;
• independent approval of manual journal entries; and
• comparison of prior estimates with actual outcomes.

Enterprise systems can automate recurring accruals, depreciation and prepayment schedules. AI can identify unusual journals, estimate default patterns or extract invoice data. Nevertheless, models may reproduce biased historical data or obscure assumptions. Accountants remain responsible for validation, authorization, documentation and compliance.

10. Practical Limitations and Best Practice

Accrual accounting improves periodic performance measurement but does not eliminate uncertainty. Estimates can vary within reasonable ranges, standards differ between jurisdictions, and unexpected events may invalidate assumptions.

Best practice is to:

1. identify all reporting-date obligations and earned revenues;
2. distinguish routine allocations from uncertain estimates;
3. reconcile each adjustment to contracts, counts or schedules;
4. record only the change needed to achieve the correct closing balance;
5. document assumptions, sensitivity and approvals;
6. review provisions and allowances at every reporting date; and
7. preserve a clear audit trail from evidence to journal entry and disclosure.

Chapter Summary

Accrual accounting recognizes revenues when earned and expenses when incurred, rather than solely when cash changes hands. Period-end adjustments update ledger balances for accruals, prepayments, unearned revenue, depreciation, expected credit losses, provisions and inventory.

Depreciation allocates depreciable amount according to expected consumption. Credit-loss adjustments change the existing allowance to its required closing balance; later write-offs normally use that allowance. Provisions are recognized for qualifying present obligations and are measured at the best estimate, with discounting where material. Contingent liabilities are generally disclosed rather than recognized. Inventory adjustments establish counted inventory, cost of sales, shrinkage and any required NRV write-down.

The adjusted trial balance verifies debit-credit equality and provides the immediate basis for financial statements, although equality alone cannot prove that all judgments are correct. Estimates and accounting policies significantly influence reported profit and financial position, making documentation, neutrality, governance and professional skepticism essential.

Key Terms

Accrual accounting: Recognition of economic events in the periods in which they occur rather than solely when cash moves.

Accrued expense: An expense incurred but not yet paid or recorded.

Accrued revenue: Revenue earned but not yet billed, collected or recorded.

Adjusted trial balance: A listing of ledger balances after period-end adjustments.

Bad-debt write-off: Removal of a specific receivable considered uncollectible.

Change in estimate: Prospective revision arising from new information or experience.

Contingent liability: A possible obligation, or an unrecognized present obligation, dependent on uncertain circumstances.

Contra-asset: An account that reduces the reported amount of a related asset.

Depreciation: Systematic allocation of an asset’s depreciable amount over its useful life.

Expected credit loss: Probability-weighted estimate of credit losses based on relevant available information.

Loss allowance: Contra-asset representing estimated uncollectible receivables or other credit losses.

Net realizable value: Estimated selling price less estimated completion and selling costs.

Prepaid expense: Payment recorded as an asset until the related benefit is consumed.

Provision: Liability of uncertain timing or amount meeting applicable recognition criteria.

Reversing entry: Optional next-period entry that reverses a selected accrual.

Unearned revenue: Liability arising when consideration is received before revenue is earned.

Useful life: Period or production capacity over which an asset is expected to be available for use.

Inventory shrinkage: Difference between recorded inventory and the smaller quantity physically present.

Review Questions

Short Answer Questions

1. Why does receiving cash not always result in immediate revenue recognition?
2. Distinguish an accrued expense from a prepaid expense.
3. Why is depreciation not a direct estimate of an asset’s market-value decline?
4. How does a bad-debt write-off affect the loss allowance and receivables?
5. What is the purpose of an adjusted trial balance?

Long Answer Questions

1. Explain the accrual basis and evaluate how it improves periodic performance measurement compared with cash accounting.
2. Discuss the recognition, measurement, utilization, review and reversal of provisions.
3. Compare provisions, contingent liabilities and contingent assets, including their reporting consequences.
4. Explain accounting for inventory under periodic and perpetual systems, including shrinkage and NRV write-downs.
5. Evaluate how accounting estimates, policy choices and errors differ in nature and accounting treatment.

Analytical / Application Questions

1. A company has gross receivables of $150,000, a required closing allowance of $6,500 and an existing credit allowance of $4,200. Prepare the adjustment and calculate net receivables.
2. An annual insurance policy costing $24,000 begins on 1 October. Prepare the adjustment and determine the prepaid balance at 31 December, assuming even monthly consumption.
3. Opening inventory is $72,000, net purchases are $185,000 and counted closing inventory is $64,000. Calculate cost of sales, prepare periodic-system closing entries and explain the effect of overstating closing inventory by $5,000.

Multiple Choice Questions with Answers

Question 1

A company has a required closing loss allowance of $4,800 and an existing credit allowance of $3,100. What adjustment is required?

A. Debit ECL expense $1,700; credit loss allowance $1,700

B. Debit ECL expense $4,800; credit loss allowance $4,800

C. Debit loss allowance $1,700; credit ECL expense $1,700

D. Debit accounts receivable $3,100; credit loss allowance $3,100

Correct Answer: A. Debit ECL expense $1,700; credit loss allowance $1,700

Question 2

A $12,000 annual insurance policy begins on 1 January. What are insurance expense and prepaid insurance at 31 March, assuming even consumption?

A. Expense $4,000; prepaid $8,000

B. Expense $3,000; prepaid $9,000

C. Expense $9,000; prepaid $3,000

D. Expense $12,000; prepaid $0

Correct Answer: B. Expense $3,000; prepaid $9,000

Question 3

Which entry records wages incurred but unpaid at the reporting date?

A. Debit Wages payable; credit Wages expense

B. Debit Cash; credit Wages payable

C. Debit Wages expense; credit Wages payable

D. Debit Prepaid wages; credit Cash

Correct Answer: C. Debit Wages expense; credit Wages payable

Question 4

Opening inventory is $30,000, net purchases are $75,000 and closing inventory is $27,000. What is cost of sales?

A. $72,000

B. $78,000

C. $102,000

D. $132,000

Correct Answer: B. $78,000

Question 5

Which statement about depreciation is correct?

A. It measures the asset's exact market-value decline each period.

B. It creates cash reserved for replacing the asset.

C. It systematically allocates depreciable amount over useful life.

D. It is recorded only when an asset is sold.

Correct Answer: C. It systematically allocates depreciable amount over useful life.

Question 6

A warranty obligation satisfies the recognition criteria for a provision. Which initial entry is appropriate?

A. Debit Warranty provision; credit Warranty expense

B. Debit Warranty expense; credit Warranty provision

C. Debit Cash; credit Warranty provision

D. Debit Warranty provision; credit Revenue

Correct Answer: B. Debit Warranty expense; credit Warranty provision

Question 7

When repair costs previously covered by a warranty provision are incurred, which treatment avoids recognizing the expense twice?

A. Debit Warranty provision and credit Cash, Inventory or Payables

B. Debit Warranty expense and credit Warranty provision

C. Debit Warranty expense and credit Revenue

D. Debit Inventory and credit Warranty expense

Correct Answer: A. Debit Warranty provision and credit Cash, Inventory or Payables

Question 8

A possible legal obligation has a non-remote but less-than-probable outflow. Under the chapter's IAS 37 framework, what is generally appropriate?

A. Recognize a provision for the maximum possible loss.

B. Recognize an asset for any possible reimbursement.

C. Do not recognize a liability, but disclose the contingency if material.

D. Ignore the matter in all circumstances.

Correct Answer: C. Do not recognize a liability, but disclose the contingency if material.

Question 9

Under a perpetual inventory system, recorded inventory is $42,000 but the physical count is $40,700. What adjustment is required?

A. Debit Inventory $1,300; credit Cost of sales $1,300

B. Debit Cost of sales or shrinkage expense $1,300; credit Inventory $1,300

C. Debit Purchases $40,700; credit Inventory $40,700

D. Debit Inventory $42,000; credit Purchases $42,000

Correct Answer: B. Debit Cost of sales or shrinkage expense $1,300; credit Inventory $1,300

Question 10

Which item is normally treated as a prospective change in accounting estimate?

A. Correction of an arithmetic error from the prior year

B. Revision of an asset's remaining useful life based on new information

C. Deliberate omission of an accrued liability

D. Correction of a misapplied accounting policy

Correct Answer: B. Revision of an asset's remaining useful life based on new information