Why warehouse losses require rigorous accounting
In a Swiss SME handling goods — retail, distribution, light manufacturing or e-commerce — differences between book stock and physical stock are part of everyday operations. Theft by customers or employees, breakages in the warehouse, production scrap, picking errors and inventory adjustments add up over the year and, if not handled systematically, distort gross margin, deductible VAT and the tax base.
The Code of Obligations (CO) requires orderly accounting and valuation of inventory at the lower of cost or market (Art. 960 CO). Swiss accounting standards (Swiss GAAP FER) and tax practice also require distinguishing between ordinary operating losses, exceptional events and accounting corrections due to errors. Approximate recording — for example, charging everything to cost of goods sold without traceability — makes it difficult to explain the figures to the auditor, the Federal Tax Administration (FTA) and banking partners.
This guide explains how to identify the different types of loss, record them transparently and manage value-added tax (VAT) correctly, with practical examples for business owners and finance managers using tools such as Accountex.
Types of variance: not all losses are accounted for in the same way
Before posting a journal entry, it is essential to classify the origin of the variance. The nature of the event determines the expense account, tax deductibility and any VAT adjustment.
| Type | Typical example | Accounting treatment | VAT |
|---|---|---|---|
| Ordinary operating shrinkage | Perishable goods, damaged samples, production scrap within threshold | Operating expense (e.g. warehouse shrinkage / cost of goods) | No taxable supply if destruction is documented |
| Recurring inventory variance | Shortage identified at month-end, within company tolerance | Dedicated account «Inventory variances» | As a rule, no adjustment if there is no supply in favour of third parties |
| Established theft | Break-in, internal theft with police report or internal report | Inventory write-off + expense; optional «Theft losses» account | As a rule, no taxable deemed supply; for internal theft in favour of an employee, see «Unauthorised withdrawal» |
| Breakage / accidental destruction | Overturned pallet, water damage in storage | Operating expense or insurance item if compensation expected | Check any insurance reimbursement including VAT |
| Accounting or counting error | Item recorded twice, incorrect unit of measure | Accounting correction, not an expense | No VAT effect if no real transaction changed |
| Unauthorised withdrawal / internal gift | Employee takes goods for private use | Benefit in kind + personnel expense if established | Taxable deemed supply (own consumption, Art. 31 VAT Act) |
A common mistake is to treat every shortage as «cost of goods sold». This approach inflates cost of sales and hides true commercial performance: gross margin appears artificially low and there is no distinction between operational inefficiency, criminal activity and process issues.
Inventory valuation and write-off basis
When recording a warehouse loss, the amount to write off corresponds to the book value of the goods, not necessarily the selling price. In Switzerland, the lower-of-cost-or-market principle applies: acquisition or production cost, possibly adjusted for obsolescence or slow-moving stock.
FIFO / average cost method
Most SMEs use weighted average cost or FIFO (first in, first out). At the time of write-off, apply the unit cost of the batch concerned or the period average cost, consistently with the method adopted at year-end.
Accounting software integrated with inventory — such as Accountex — allows each adjustment to be linked to the item and historical cost, avoiding manual estimates that diverge from the final inventory count.
Annual physical inventory
At the closing date, the physical inventory documents remaining stock pursuant to Art. 958c para. 2 CO. Overall variances identified during the annual inventory should be recorded in a single adjustment entry, with detail by product category and cause, if known.
If the variance exceeds internal thresholds or represents a significant amount relative to operating profit, it is advisable to analyse it separately in the financial statements (Swiss GAAP FER 3) rather than burying it in cost of sales.
Journal entries: separating inventory from margin
The aim is to record the loss without altering the calculation of commercial margin. Cost of goods sold (COGS) should reflect the cost of actual sales; stock losses should go to dedicated accounts in the income statement.
Example 1 — Operating shrinkage of CHF 1'200 (8.1% VAT already deducted on purchase):
| Account | Debit | Credit |
|---|---|---|
| 6900 Shrinkage and inventory variances | 1'200 | — |
| 1200 Inventory | — | 1'200 |
Example 2 — Established theft of CHF 8'500, with police report:
| Account | Debit | Credit |
|---|---|---|
| 6910 Theft losses | 8'500 | — |
| 1200 Inventory | — | 8'500 |
If the insurer subsequently pays CHF 6'000 (excluding VAT), the offsetting entry should be recorded as insurance income, not as reinstatement of inventory, unless the goods are actually replaced.
Watch the gross margin
Gross margin is calculated as net revenue minus cost of goods sold. Charging stock losses to COGS reduces margin without any decrease in sales volume. A dedicated account (69xx) keeps reporting accurate and facilitates monthly analysis in Accountex or in exports to the tax adviser.
VAT: when to adjust and when not to
The Value Added Tax Act (VAT Act / MWSTG) taxes supplies made in Switzerland. The simple disappearance of goods — external theft, shrinkage, inventory variance not attributable to a beneficiary — does not as a rule constitute a «supply» within the meaning of Art. 3 para. 1 lit. c VAT Act. Consequently, no obligation to account for a taxable deemed supply arises and no VAT adjustment is required for missing goods.
The general rule on input tax (Art. 28 VAT Act) remains: VAT deducted on purchase remains deductible if the goods were intended for taxable supplies. Input tax does not need to be corrected under Art. 31 VAT Act (own consumption) for stolen or destroyed goods, provided there is no withdrawal in favour of third parties or staff and the absence of a supply is documented (inventory report, police report, internal report).
Different situations requiring attention:
- Free withdrawal in favour of third parties (gifts to customers, goods given away): taxable deemed supply at market value, with VAT due.
- Free withdrawal in favour of staff: own consumption subject to VAT (Art. 31 VAT Act) and, in parallel, potential allocation to salary for withholding tax and social security purposes.
- Documented destruction of goods purchased at reduced rate: ensure destruction can be proven (report, photos, disposal certificate) in the event of an FTA audit.
- Insurance reimbursement: compensation normally includes VAT if the policy covers full value; accounting must separate net amount and tax.
Tax deductibility and profit tax
For federal and cantonal profit tax, warehouse losses are in principle deductible if they are of a commercial nature, documented and attributable to the financial year in which they occur, as expenses justified by commercial use (Art. 59 DBG and analogous cantonal provisions).
Ordinary and deductible
- Shrinkage within normal commercial activity
- Recurring and moderate inventory variances
- Theft with police report or detailed internal report
- Write-downs of obsolete or unsaleable inventory
Issues and non-deductibility
- Losses due to serious negligence without documentation
- Repeated variances without internal investigation (possible qualification as inefficient management)
- Unrecorded withdrawals in favour of shareholders or employees (benefit in kind)
- Exceptional amounts not segregated in the financial statements
Material losses may, in the income statement under the CO (Art. 959b), be segregated among non-recurring expenses; under Swiss GAAP FER 3 they qualify as extraordinary items only for extremely rare and unforeseeable events. Segregation, where permitted, improves readability of the financial statements without prejudicing tax deductibility, provided the event is real and documented.
Internal controls: prevent, detect, document
Correct accounting presupposes processes that limit losses and produce auditable evidence. For a Swiss SME, a proportionate system includes:
1. Cycle counting
Partial monthly counts for high-risk categories (electronics, alcohol, tobacco, cosmetics) instead of a single annual inventory. Recurring variances on one item may indicate internal theft or system errors.
2. Segregation of duties
The person who orders should not record warehouse receipts, and the person who checks stock levels should not approve accounting adjustments. In small companies, at least a monthly cross-check by the owner or fiduciary.
3. Thresholds and adjustment workflow
Define amounts below which variances are automatically posted to «Ordinary shrinkage» and higher thresholds requiring approval and indication of cause (theft, breakage, error). Accountex allows each inventory movement to be linked to supporting documentation.
4. Minimum documentation
For each significant adjustment: signed inventory report, police report if applicable (theft), photos or destruction certificate (shrinkage), insurance report (claim). Retain documents for at least ten years (Art. 958f CO).
Year-end close: physical inventory and overall adjustment
At year-end, the standard procedure is: (1) freeze inventory movements at the inventory date; (2) physical count of all remaining stock; (3) comparison with account 1200 balance; (4) recording of the overall variance to a dedicated account; (5) any write-down for obsolete or unsaleable items under the lower-of-cost-or-market principle.
If you have already posted specific entries during the year for significant theft or shrinkage, the closing adjustment will cover only the residual variance not yet accounted for. Avoid double counting by verifying that the inventory balance in the accounts matches cumulative adjustments.
The auditor (if appointed) and tax adviser will check that total warehouse losses are consistent with the nature of the business: a retailer with a shrinkage rate of 2–3% may be plausible; a service company with minimal inventory and large variances will raise questions.
Operational checklist for business owners
| Step | Action | Responsible |
|---|---|---|
| Classify | Identify cause: shrinkage, theft, error, gift | Warehouse manager |
| Document | Attach report, police report or internal report | Warehouse / HR |
| Value | Apply historical cost (FIFO or average), not selling price | Finance |
| Record | Write off inventory (1200), charge dedicated 69xx account | Accounting / Accountex |
| Check VAT | Deemed supply only if free supply to third parties or staff | Fiduciary / FTA |
| Analyse | Compare shrinkage % with prior period and industry benchmarks | Owner / CFO |
| Close | Annual physical inventory and documented residual adjustment | Year-end close team |
Conclusion: accounting transparency and real margin
Theft, shrinkage and inventory variances are part of the operations of many Swiss SMEs, but they should not be invisible in the figures. By separating warehouse losses from cost of goods sold, documenting causes and applying VAT rules only where a genuine supply arises, you maintain a reliable gross margin and financial statements that stand up to auditors and tax authorities.
Integrated accounting software simplifies the link between inventory movements, supporting documents and dedicated expense accounts. With Accountex, business owners and fiduciary firms can automate recurring adjustments, monitor shrinkage trends over time and prepare year-end close with consistent data — without surprises on margins, VAT or profit tax.