7.3 Depreciation & Bad Debts

Key Takeaways

  • Straight-line depreciation allocates depreciable cost of PPE evenly over useful life: (Cost − Residual value) ÷ Useful life.
  • The periodic adjusting entry debits Depreciation Expense and credits Accumulated Depreciation, a contra-asset, without reducing the PPE cost account directly.
  • Bookkeepers must know the allowance method (preferred under accrual/PFRS-oriented practice) versus the direct write-off method and when each appears in problems.
  • Allowance-method year-end adjustments debit Bad Debts Expense and credit Allowance for Doubtful Accounts based on estimate; write-offs later debit the allowance, not expense again.
Last updated: July 2026

7.3 Depreciation & Bad Debts

Quick Answer: For TESDA Bookkeeping NC III, compute straight-line depreciation as (Cost − Residual value) ÷ Useful life, then debit Depreciation Expense and credit Accumulated Depreciation. For receivables, prefer the allowance method (estimate bad debts expense; maintain Allowance for Doubtful Accounts). Know direct write-off as an awareness contrast: it debits Bad Debts Expense only when a specific account is written off and can misstate matching.

After accruals and deferrals, two more adjustments dominate worksheets: depreciation of property, plant, and equipment (PPE) and bad debts related to trade receivables. Both appear in TR-aligned practical projects and in written items that test whether you can compute amounts and choose the correct accounts.

Straight-Line Depreciation for PPE

Depreciation systematically allocates the depreciable amount of a long-lived tangible asset to expense over its useful life. NC III bookkeepers are expected to apply the straight-line method when the case provides cost, residual (salvage) value, and useful life.

Annual depreciation=CostResidual valueUseful life in years\text{Annual depreciation} = \frac{\text{Cost} - \text{Residual value}}{\text{Useful life in years}}

For a partial year, multiply annual depreciation by months in service ÷ 12 (unless the problem instructs a full-year policy).

Why use Accumulated Depreciation?

Credit Accumulated Depreciation, a contra-asset, rather than crediting the Equipment account directly. Cost stays visible; net book value = Cost − Accumulated Depreciation. That presentation matches common Philippine worksheet and balance sheet layouts used in assessment centers.

Standard adjusting entry:

Account TitleDebitCredit
Depreciation Expense — Equipment₱xxx
Accumulated Depreciation — Equipment₱xxx

Worked Example 1 — Delivery van

On 1 January 2026, Mindanao Trading buys a delivery van:

DataAmount / fact
Cost₱780,000
Residual value₱60,000
Useful life5 years
MethodStraight-line

Annual depreciation = (₱780,000 − ₱60,000) ÷ 5 = ₱144,000.

31 December 2026:

Account TitleDebitCredit
Depreciation Expense — Delivery Van₱144,000
Accumulated Depreciation — Delivery Van₱144,000

Net book value at year-end = ₱780,000 − ₱144,000 = ₱636,000.

Worked Example 2 — Mid-year acquisition

Office equipment purchased 1 April 2026 for ₱120,000; residual ₱12,000; life 4 years.

Annual depreciation = (₱120,000 − ₱12,000) ÷ 4 = ₱27,000.
2026 depreciation for 9 months = ₱27,000 × 9/12 = ₱20,250.

Account TitleDebitCredit
Depreciation Expense — Office Equipment₱20,250
Accumulated Depreciation — Office Equipment₱20,250

Depreciation facts table

ItemTreatment
LandGenerally not depreciated
Building, equipment, furniture, vehiclesDepreciate
Residual valueSubtract from cost before dividing
Contra-asset balanceIncreases with credit each period
CashNever appears in the depreciation adjusting entry

Bad Debts — Allowance Method vs Direct Write-Off

Credit sales create Accounts Receivable. Some customers will not pay. Matching under accrual thinking says the estimated uncollectible portion related to this period’s credit sales (or to ending receivables) should hit expense in this period—not only when a specific account dies years later.

Allowance method (bookkeeper focus)

  1. Estimate uncollectibles at period-end (percent of credit sales, or percent/aging of receivables—use the method given in the problem).
  2. Adjusting entry: Debit Bad Debts Expense; credit Allowance for Doubtful Accounts (contra-asset to AR).
  3. Later write-off of a specific customer: Debit Allowance for Doubtful Accounts; credit Accounts Receivable (and the subsidiary ledger). No expense at write-off if already allowed for.
  4. Recovery (if previously written off): reinstate receivable against allowance (or per firm procedure), then record cash collection.

Direct write-off method (awareness)

When a specific account is confirmed uncollectible: Debit Bad Debts Expense; credit Accounts Receivable. No allowance account. Simple, but it can recognize expense in a later period than the related sale—weaker matching. Bookkeepers should recognize it when a problem explicitly says the firm uses direct write-off, and should not invent an allowance entry in that case.

Comparison Table

FeatureAllowance methodDirect write-off
Period-end adjusting estimate?YesNo
Contra-asset used?Allowance for Doubtful AccountsNo
Expense timingEstimated in earning periodWhen account identified uncollectible
Write-off entryDr Allowance; Cr ARDr Bad Debts Expense; Cr AR
PFRS/accrual preference for teachingPreferred illustrationAwareness / contrast

Worked Example 3 — Allowance based on credit sales

Iloilo Trading’s 2026 credit sales = ₱2,500,000. Policy: estimate bad debts at 2% of credit sales. Unadjusted allowance credit balance = ₱3,000.

Required Bad Debts Expense = ₱2,500,000 × 2% = ₱50,000 (percent-of-sales approach typically ignores existing allowance when measuring expense).

Account TitleDebitCredit
Bad Debts Expense₱50,000
Allowance for Doubtful Accounts₱50,000

Ending allowance = ₱3,000 + ₱50,000 = ₱53,000.

Worked Example 4 — Allowance based on ending receivables (aging)

Ending AR = ₱400,000. Aging requires allowance balance of ₱28,000. Unadjusted allowance credit balance = ₱5,000.

Expense to record = ₱28,000 − ₱5,000 = ₱23,000.

Account TitleDebitCredit
Bad Debts Expense₱23,000
Allowance for Doubtful Accounts₱23,000

If the allowance had an unadjusted debit balance of ₱2,000 (from write-offs exceeding prior estimate), expense would be ₱28,000 + ₱2,000 = ₱30,000 to reach a ₱28,000 credit target.

Worked Example 5 — Write-off and direct write-off contrast

Customer Cruz, ₱12,000, confirmed uncollectible.

Allowance method write-off:

Account TitleDebitCredit
Allowance for Doubtful Accounts₱12,000
Accounts Receivable — Cruz₱12,000

Direct write-off:

Account TitleDebitCredit
Bad Debts Expense₱12,000
Accounts Receivable — Cruz₱12,000

Net realizable value of receivables under allowance method = AR − Allowance. Assessors may ask for that figure on the balance sheet section of the worksheet.

Posting and Statement Presentation

AdjustmentIncome statementFinancial position
DepreciationDepreciation Expense ↑Accumulated Depreciation ↑; net PPE ↓
Bad debts (allowance)Bad Debts Expense ↑Allowance ↑; net AR ↓
Direct write-offBad Debts Expense ↑ when written offAR ↓

Post depreciation and bad-debt adjusting entries to the general ledger before extracting the adjusted trial balance. PPE cost accounts remain at historical cost; only the contra accounts and expenses change at year-end for routine depreciation.

Common Errors

  1. Crediting Equipment instead of Accumulated Depreciation.
  2. Forgetting to subtract residual value.
  3. Taking a full year of depreciation for an April purchase when months matter.
  4. Debiting Bad Debts Expense again on allowance-method write-off.
  5. Ignoring an existing allowance balance when the problem uses the aging / target balance approach.

Bridge

With accruals, deferrals, depreciation, and bad debts journalized and posted, every permanent and temporary account needed for reporting should be up to date. Section 7.4 converts those ledger balances into the adjusted trial balance and bridges into the worksheet and financial statements (Chapter 8).

Test Your Knowledge

Equipment cost ₱120,000, residual value ₱12,000, useful life 4 years, acquired April 1. What is straight-line depreciation for the year ended December 31 of the acquisition year?

A
B
C
D
Test Your Knowledge

The year-end adjusting entry to record depreciation of a delivery van is:

A
B
C
D
Test Your Knowledge

Under the allowance method, when a specific customer account of ₱12,000 is written off, the entry is:

A
B
C
D
Test Your Knowledge

Aging analysis requires an Allowance for Doubtful Accounts balance of ₱28,000. The allowance currently has a ₱5,000 credit balance. What Bad Debts Expense should be recorded?

A
B
C
D