Definition
A contra account is an account on the balance sheet or income statement that offsets a related primary account. It is presented with the opposite normal balance to reduce the net carrying value of the primary account. Common examples: accumulated depreciation (contra to fixed assets), accumulated amortisation (contra to intangibles), allowance for doubtful debts (contra to accounts receivable), and sales returns and allowances (contra to revenue). The contra account preserves the gross figure of the primary account while showing the net carrying value or net revenue.
What a contra account means in practice
For a bookkeeper, contra accounts are the standard mechanism for separating the original cost of an asset from the wear-and-tear or impairment that has reduced its current value. A laptop bought for 2,400 with 1,200 of accumulated depreciation has a net book value of 1,200; the contra structure shows both numbers on the balance sheet (or in the notes) rather than collapsing them to a single net figure. The same pattern applies to intangible assets (cost less accumulated amortisation), receivables (gross less allowance for doubtful debts), and revenue (gross sales less returns and allowances).
The most common contra-related operational task is the monthly depreciation or amortisation journal: debit depreciation expense, credit accumulated depreciation. The expense hits the income statement; the contra credit hits the balance sheet to reduce the net fixed-asset figure. The two sides of the journal capture both the P&L impact and the balance-sheet impact in a single entry.
A practical example: a UK consultancy at 31 March 2027 has the following fixed-asset line:
| Line | Amount |
|---|---|
| Fixed assets at cost | 18,000 |
| Less: accumulated depreciation | (10,000) |
| Net book value | 8,000 |
The 18,000 cost includes every fixed asset purchased to date (laptops, monitors, office equipment). The 10,000 accumulated depreciation is the cumulative depreciation charge since each asset was put into service. The 8,000 net book value is what the balance sheet ultimately presents as the fixed-asset figure for ratio analysis and reporting.
How contra accounts work by country
United Kingdom
FRS 102 and IFRS both use contra accounts for accumulated depreciation (Section 17), accumulated amortisation (Section 18), allowance for doubtful debts (Section 4), and sales returns. The presentation on the balance sheet typically shows the gross asset and the contra balance separately, with the net carrying value as the final line. Companies Act 2006 requires the gross/contra split to be disclosed in the notes even where the face of the balance sheet shows only the net figure.
Australia
AASB 116 (PPE), AASB 138 (intangibles), AASB 9 (financial instruments including the expected-credit-loss allowance) use contra accounts in the same pattern as IFRS. AU presentation in the Statement of Financial Position commonly shows the contra as a deduction line below the gross asset.
Canada
ASPE Section 3061 (PPE) and Section 3856 (financial instruments) use contra accounts equivalently. The CA convention often presents net carrying value without the gross/contra split on the face of the balance sheet; the split is disclosed in the notes to the financial statements.
New Zealand
NZ IAS 16, NZ IAS 38, NZ IFRS 9 use contra accounts. Presentation follows the IFRS pattern. Tier 3 simple-format entities may collapse the gross/contra split to a net figure with no detailed note disclosure.
Singapore
SFRS(I) 16, SFRS(I) 38, SFRS(I) 9 use contra accounts. ACRA’s XBRL filing tags require the gross asset and contra balance to be reported separately even where the face of the balance sheet shows only net carrying value, ensuring the disclosure is preserved in the structured data.
Related terms
Contra accounts appear in several balance-sheet sections:
- Depreciation generates accumulated depreciation, the most common contra account.
- Amortization generates accumulated amortisation, the second-most common.
- Accounts receivable is reduced by the allowance for doubtful debts.
- Fixed assets is the primary account most associated with contras.
- The balance sheet is where contras appear.
- Each contra movement requires a journal entry.
See also
For the depreciation entries that create accumulated depreciation, see the depreciation entry. For amortisation, see amortization.
FAQ
See the answered questions above for common contra accounts, why they are used, and the allowance for doubtful debts.