What are contra accounts?
A contra account is an account paired with another account that reduces its value, with the opposite normal balance — so it lowers the net without erasing the original figure. The core idea: keep the gross value and show the reduction separately, so you see both. Let's understand it with an example, cover the four types, and why we use it instead of subtracting directly.
The idea in one example: gross − contra = net
Notice you can still see the vehicle originally cost 100,000 — the contra account lowered the value without hiding the original cost or the depreciation history.
The four types
| Type | Offsets | Normal balance | Examples |
|---|---|---|---|
| Contra-asset | An asset | Credit | Accumulated depreciation · inventory provision · allowance for doubtful debts |
| Contra-revenue | Revenue | Debit | Sales discounts allowed · sales returns |
| Contra-equity | Equity | Debit | Owner drawings |
| Contra-liability | A liability | Debit | Discount on bonds issued (rare for SMBs) |
The constant rule: a contra account's normal balance is always the opposite of the account it offsets.
Frequently asked questions
Why use a contra account instead of just subtracting?
For transparency and auditability. If you subtract directly, you lose the history: the original cost and the amount of the reduction. A contra account keeps the original (gross) figure and shows the reduction separately — so you see both and arrive at the net. That's what the auditor and decision-maker need.
What's a contra account's normal balance?
Always the opposite of the account it offsets. An asset is debit-natured, so a contra-asset (like accumulated depreciation) is credit-natured. Revenue and equity are credit-natured, so their contras (sales discounts, owner drawings) are debit-natured.
How does it appear in the statements?
As a deduction from the account it offsets. On the balance sheet: fixed assets (at cost) minus accumulated depreciation = net book value. On the income statement: net sales = sales − sales returns and discounts.
Does Zemam support contra accounts?
Yes — the system includes real contra accounts: accumulated depreciation and inventory provision (contra-asset), owner drawings (contra-equity), and sales discounts (contra-revenue, optional via a setting). The statements present the net correctly and automatically. An allowance for doubtful debts, however, is recorded as a manual entry at your accountant's discretion.
Related reading
Contra accounts are built into Zemam
Zemam's chart of accounts includes ready contra accounts: accumulated depreciation, inventory provision, owner drawings, and sales discounts — and the statements present the net correctly and automatically from double-entry, with no manual calculation.
Note: depreciation rates, provision amounts, and doubtful-debt estimates are accounting judgments set by your company's policies and your chartered accountant per the applicable framework (IFRS/Egyptian standards). The system records and presents; the estimate is human.