3.3: Adjusting Entries

learning Objective

Explain the use of and prepare the adjusting entries required for prepaid expenses, depreciation, unearned revenues, accrued revenues, and accrued expenses.

At the end of an accounting period, before financial statements can be prepared, the accounts must be reviewed for potential adjustments. This review is done by using the unadjusted trial balance. The unadjusted trial balance is a trial balance where the accounts have not yet been adjusted. The trial balance of Big Dog Carworks Corp. at January 31 was prepared in Chapter 2 and appears in Figure 3.4.1 below. It is an unadjusted trial balance because the accounts have not yet been updated for adjustments. We will use this trial balance to illustrate how adjustments are identified and recorded.

Big Dog Carworks Corp. Unadjusted Trial Balance At January 31, 2015
Acct.	Account	Debit	Credit
101	Cash	$3,700
110	Accounts receivable	2,000
161	Prepaid insurance	2,400
183	Equipment	3,000
184	Truck	8,000
201	Bank loan		$6,000
210	Accounts payable		700
247	Unearned revenue		400
320	Share capital		10,000
330	Dividends	200
450	Repair revenue		10,000
654	Rent expense	1,600
656	Salaries expense	3,500
668	Supplies expense	2,000
670	Truck operation expense	700
		$27,100	$27,100

Figure \(\PageIndex{1}\): Unadjusted Trial Balance of Big Dog Carworks Corp. at January 31, 2015

Adjustments are recorded with adjusting entries. The purpose of adjusting entries is to ensure both the balance sheet and the income statement faithfully represent the account balances for the accounting period. Adjusting entries help satisfy the matching principle. There are five types of adjusting entries as shown in Figure 3.4.2, each of which will be discussed in the following sections.

Figure \(\PageIndex{2}\): Five Types of Adjusting Entries

Adjusting Prepaid Asset Accounts

An asset or liability account requiring adjustment at the end of an accounting period is referred to as a mixed account because it includes both a balance sheet portion and an income statement portion. The income statement portion must be removed from the account by an adjusting entry.

Refer to Figure 3.4.1 which shows an unadjusted balance in prepaid insurance of $2,400. Recall from Chapter 2 that Big Dog paid for a 12-month insurance policy that went into effect on January 1 (transaction 5).

Figure \(\PageIndex{3}\)

At January 31, one month or $200 of the policy has expired (been used up) calculated as $2,400/12 months = $200.

The adjusting entry on January 31 to transfer $200 out of prepaid insurance and into insurance expense is:

General Journal
Date	Account/Explanation	F	Debit	Credit
Jan 31	Insurance Expense		200
	Prepaid Insurance			200
	To adjust for the use of one month of Prepaid Insurance.

As shown below, the balance remaining in the Prepaid Insurance account is $2,200 after the adjusting entry is posted. The $2,200 balance represents the unexpired asset that will benefit future periods, namely, the 11 months from February to December, 2015. The $200 transferred out of prepaid insurance is posted as a debit to the Insurance Expense account to show how much insurance has been used during January.

Figure \(\PageIndex{4}\)

If the adjustment was not recorded, assets on the balance sheet would be overstated by $200 and expenses would be understated by the same amount on the income statement.

Adjusting Unearned Liability Accounts

On January 15, Big Dog received a $400 cash payment in advance of services being performed.

Figure \(\PageIndex{5}\)

This advance payment was originally recorded as unearned, since the cash was received before repair services were performed. At January 31, $300 of the $400 unearned amount has been earned. Therefore, $300 must be transferred from unearned repair revenue into repair revenue. The adjusting entry at January 31 is:

General Journal
Date	Account/Explanation	F	Debit	Credit
Jan 31	Unearned Repair Revenue		300
	Repair Revenue			300
	To adjust for repair revenue earned.

After posting the adjustment, the $100 remaining balance in unearned repair revenue ($400 – $300) represents the amount at the end of January that will be earned in the future.

Figure \(\PageIndex{6}\)

If the adjustment was not recorded, unearned repair revenue would be overstated (too high) by $300 causing liabilities on the balance sheet to be overstated. Additionally, revenue would be understated (too low) by $300 on the income statement if the adjustment was not recorded.

Adjusting Plant and Equipment Accounts

Plant and equipment assets, also known as long-lived assets, are expected to help generate revenues over the current and future accounting periods because they are used to produce goods, supply services, or used for administrative purposes. The truck and equipment purchased by Big Dog Carworks Corp. in January are examples of plant and equipment assets that provide economic benefits for more than one accounting period. Because plant and equipment assets are useful for more than one accounting period, their cost must be spread over the time they are used. This is done to satisfy the matching principle. For example, the $100,000 cost of a machine expected to be used over five years is not expensed entirely in the year of purchase because this would cause expenses to be overstated in Year 1 and understated in Years 2, 3, 4, and 5. Therefore, the $100,000 cost must be spread over the asset's five-year life.

The process of allocating the cost of a plant and equipment asset over the period of time it is expected to be used is called depreciation. The amount of depreciation is calculated using the actual cost and an estimate of the asset's useful life and residual value. The useful life of a plant and equipment asset is an estimate of how long it will actually be used by the business regardless of how long the asset is expected to last. For example, a car might have a manufacturer's suggested life of 10 years but a business may have a policy of keeping cars for only 2 years. The useful life for depreciation purposes would therefore be 2 years and not 10 years. The residual value is an estimate of what the plant and equipment asset will be sold for when it is no longer used by a business. Residual value can be zero. There are different formulas for calculating depreciation. We will use the straight-line method of depreciation:

\[\frac{Cost−Estimated \ Residual \ Value}{Estimated \ Useful \ Life}\]

The cost less estimated residual value is the total depreciable cost of the asset. The straight-line method allocates the depreciable cost equally over the asset's estimated useful life. When recording depreciation expense, our initial instinct is to debit depreciation expense and credit the Plant and Equipment asset account in the same way prepaids were adjusted with a debit to an expense and a credit to the Prepaid asset account. However, crediting the Plant and Equipment asset account is incorrect. Instead, a contra account called accumulated depreciation must be credited. A contra account is an account that is related to another account and typically has an opposite normal balance that is subtracted from the balance of its related account on the financial statements. Accumulated depreciation records the amount of the asset's cost that has been expensed since it was put into use. Accumulated depreciation has a normal credit balance that is subtracted from a Plant and Equipment asset account on the balance sheet.

Initially, the concept of crediting Accumulated Depreciation may be confusing because of how we learned to adjust prepaids (debit an expense and credit the prepaid). Remember that prepaids actually get used up and disappear over time. The Plant and Equipment asset account is not credited because, unlike a prepaid, a truck or building does not get used up and disappear. The goal in recording depreciation is to match the cost of the asset to the revenues it helped generate. For example, a $50,000 truck that is expected to be used by a business for 4 years will have its cost spread over 4 years. After 4 years, the asset will likely be sold (journal entries related to the sale of plant and equipment assets are discussed in Chapter 8).

The adjusting journal entry to record depreciation is:

General Journal
Date	Account/Explanation	F	Debit	Credit
	Depreciation Expense		XX
	Accumulated Depreciation			XX
	To adjust for depreciation.

Subtracting the accumulated depreciation account balance from the Plant and Equipment asset account balance equals the carrying amount or net book value of the plant and equipment asset that is reported on the balance sheet.

Let's work through two examples to demonstrate depreciation adjustments. Big Dog Carworks Corp.'s January 31, 2015 unadjusted trial balance showed the following two plant and equipment assets:

Big Dog Carworks Corp. Unadjusted Trial Balance At January 31, 2015
Acct.	Account	Debit	Credit
183	Equipment	3,000
184	Truck	8,000

The equipment was purchased for $3,000.

Figure \(\PageIndex{7}\)

The equipment was recorded as a plant and equipment asset because it has an estimated useful life greater than 1 year. Assume its actual useful life is 10 years (120 months) and the equipment is estimated to be worth $0 at the end of its useful life (residual value of $0).

\[\frac{Cost−Estimated \ Residual \ Value}{Estimated \ Useful \ Life} \ =\ \frac{$3,000−$0}{120 months} \ =\ \frac{$25}{month}\]

Note that depreciation is always rounded to the nearest whole dollar. This is because depreciation is based on estimates — an estimated residual value and an estimated useful life; it is not exact. The following adjusting journal entry is made on January 31:

General Journal
Date	Account/Explanation	F	Debit	Credit
Jan 31	Depreciation Expense, Equipment		25
	Accumulated Depreciation, Equipment			25
	To adjust for one month of depreciation on the equipment.

When the adjusting entry is posted, the accounts appear as follows:

Figure \(\PageIndex{8}\)

For financial statement reporting, the asset and contra asset accounts are combined. The net book value of the equipment on the balance sheet is shown as $2,975 ($3,000 – $25).

BDCC also shows a truck for $8,000 on the January 31, 2015 unadjusted trial balance.

Figure \(\PageIndex{9}\)

Assume the truck has an estimated useful life of 80 months and a zero estimated residual value. At January 31, one month of the truck cost has expired since it was put into operation in January. Using the straight-line method, depreciation is calculated as:

\[\frac{Cost−Estimated \ Residual \ Value}{Estimated \ Useful \ Life} \ = \frac{$8,000−$0}{80 months}\ = \frac{$100}{month}\]

The adjusting entry recorded on January 31 is:

General Journal
Date	Account/Explanation	F	Debit	Credit
Jan 31	Depreciation Expense, Truck		100
	Accumulated Depreciation, Truck			100
	To adjust for one month of depreciation on the truck.

When the adjusting entry is posted, the accounts appear as follows:

Figure \(\PageIndex{10}\)

For financial statement reporting, the asset and contra asset accounts are combined. The net book value of the truck on the balance sheet is shown as $7,900 ($8,000 – $100).

If depreciation adjustments are not recorded, assets on the balance sheet would be overstated. Additionally, expenses would be understated on the income statement causing net income to be overstated. If net income is overstated, retained earnings on the balance sheet would also be overstated.

It is important to note that land is a long-lived asset. However, it is not depreciated because it does not get used up over time. Therefore, land is often referred to as a non-depreciable asset.

Adjusting for Accrued Revenues

Accrued revenues are revenues that have been earned but not yet collected or recorded. For example, a bank has numerous notes receivable. Interest is earned on the notes receivable as time passes. At the end of an accounting period, there would be notes receivable where the interest has been earned but not collected or recorded. The adjusting entry for accrued revenues is:

General Journal
Date	Account/Explanation	F	Debit	Credit
	Receivable		XXX
	Revenue			XXX
	To adjust for accrued revenue.

For Big Dog Carworks Corp., assume that on January 31, $400 of repair work was completed for a client but it had not yet been collected or recorded. BDCC must record the following adjusting entry:

General Journal
Date	Account/Explanation	F	Debit	Credit
Jan 31	Accounts Receivable		400
	Repair Revenue			400
	To adjust for accrued revenue.

Figure \(\PageIndex{11}\)

If the adjustment was not recorded, assets on the balance sheet would be understated by $400 and revenues would be understated by the same amount on the income statement.

Adjusting for Accrued Expenses

Accrued expenses are expenses that have been incurred but not yet paid or recorded. For example, a utility bill received at the end of the accounting period is likely not payable for 2–3 weeks. Utilities for the period have been used but have not yet been paid or recorded. The adjusting entry for accrued expenses is:

General Journal
Date	Account/Explanation	F	Debit	Credit
	Expense		XXX
	Payable			XXX
	To adjust for accrued expense.

Accruing Interest Expense

For Big Dog Carworks Corp., the January 31, 2015 unadjusted trial balance shows a $6,000 bank loan balance. Assume it is a 4%, 60-day bank loan\(^1\). It was dated January 3 which means that on January 31, 28 days of interest have accrued (January 31 less January 3 = 28 days) as shown in Figure 3.6.

Figure \(\PageIndex{12}\)

\(^1\): The maturity date is March 4, 2015 calculated as: January 31 less January 3 = 28 days + 28 days in February = 56 days + 4 days = March 4.

The formula for calculating interest when the term is expressed in days is:

\[Interest \ = \ Principal×Interest \ Rate×\frac{Elapsed \ time \ in \ days}{365}\]

The interest expense accrued at January 31 is calculated as:

\[Interest \ = \ $6,000×0.04×28365 \ = \ $18\] (rounded to nearest whole dollar)

Interest is normally expressed as an annual rate. Therefore, the 28 days must be divided by the 365 days in a year. Normally all interest calculations in this textbook are rounded to two decimal places. However, for simplicity of demonstrations in this chapter, we will round to the nearest whole dollar.

BDCC's adjusting entry on January 31 is:

General Journal
Date	Account/Explanation	F	Debit	Credit
Jan 31	Interest Expense		18
	Interest Payable			18
	To adjust for accrued interest; $6,000 X 4% X 28/365 = $18.41 (rounded to $18 for illustrative purposes in this chapter).

This adjusting entry enables BDCC to include the interest expense on the January income statement even though the payment has not yet been made. The entry creates a payable that will be reported as a liability on the balance sheet at January 31.

When the adjusting entry is posted, the accounts appear as:

Figure \(\PageIndex{13}\)

On February 28, interest will again be accrued and recorded as:

General Journal
Date	Account/Explanation	F	Debit	Credit
Feb 28	Interest Expense Interest Expense		18
	Interest Payable Interest Payable			18
	To adjust for accrued interest; $6,000 X 4% X 28/365 = $18.41 (rounded to $18 for illustrative purposes in this chapter).

On March 4 when the bank loan matures, Big Dog will pay the interest and principal and record the following entry:

General Journal
Date	Account/Explanation	F	Debit	Credit
Mar 4	Interest Expense		3
	Interest Payable		36
	Bank Loan		6,000
	Cash			6039
	To record payment of the bank loan and interest; interest expense for March is \[$6,000 X 4% X 4/365 \ =\ $2.63\] (rounded to $3 for illustrative purposes in this chapter).

The $36 debit to interest payable will cause the Interest Payable account to go to zero since the liability no longer exists once the cash is paid. Notice that the total interest expense recorded on the bank loan was $39−$18 expensed in January, $18 expensed in February, and $3 expensed in March. The interest expense was matched to the life of the bank loan.

Accruing Income Tax Expense

Another adjustment that is required for Big Dog Carworks Corp. involves the recording of corporate income taxes. In most jurisdictions, a corporation is taxed as an entity separate from its shareholders. For simplicity, assume BDCC's income tax due for January 2015 is $500. The adjusting entry is at January 31:

General Journal
Date	Account/Explanation	F	Debit	Credit
Jan 31	Income Tax Expense		500
	Income Tax Payable			500
	To adjust for January accrued income tax.

When the adjusting entry is posted, the accounts appear as follows:

Figure \(\PageIndex{14}\)

The above adjusting entry enables the company to match the income tax expense accrued in January to the income earned during the same month.

The five types of adjustments discussed in the previous paragraphs are summarized in Figure 3.4.15.

Figure \(\PageIndex{15}\): Summary of the Five Types of Adjusting Entries