Why petty cash management is a weak point in SMEs
In many Swiss small and medium-sized enterprises, petty cash and expense advances are still managed informally: a drawer of cash, a pile of receipts, and an employee who pays expenses upfront without clear procedures. This apparent simplicity hides concrete risks: cash imbalances that are hard to reconstruct, loss of the right to deduct VAT, and challenges during audit or tax inspection.
Petty cash and expense advances (imprest funds) serve different needs, but both require traceability, documentation, and internal controls. The Swiss Code of Obligations requires orderly and verifiable bookkeeping; Swiss accounting standards (GAAP/FER) and tax practice add specific requirements on supporting documents, cost allocation, and VAT handling.
This guide explains how to distinguish the two instruments, record them correctly, respect operational and tax limits in force in Switzerland, and set up anti-fraud controls suited to an SME—with practical examples you can also use in Accountex.
Petty cash and expense advances: two tools, two logics
Before setting up entries and controls, it is essential to clarify the difference between the two mechanisms:
Petty cash
This is a fixed cash float kept on premises to pay small, urgent expenses: postage, office supplies, taxis, small cash purchases. The money belongs to the company and remains under the responsibility of the designated custodian (often the administrative office or reception).
The cash balance is a current asset: it does not represent a receivable from employees or an expense until it is used to purchase documented goods or services.
Expense advance (imprest fund)
This is a cash advance granted to an employee or contractor to cover foreseeable expenses in the company's interest: business travel, entertainment, urgent on-site purchases. Until the expense report is submitted, the amount advanced constitutes a receivable from the employee.
Unlike petty cash, an expense advance involves a temporary advance-and-settlement relationship: the employee must return any surplus or submit supporting documents for the amount spent within a defined deadline.
Comparison table: petty cash vs. expense advances
This summary comparison helps you choose the right instrument and set up accounting without confusing cash assets and receivables from staff:
| Criterion | Petty cash | Expense advance |
|---|---|---|
| Holder of the funds | The company (designated custodian) | The employee/contractor in advance |
| Typical ledger account | 1020 Cash / Kasse | 1140 Employee expense advances |
| When the expense is recognized | When paid from petty cash (with supporting document) | When the expense report is approved |
| Amount | Fixed float, usually modest (e.g. CHF 200–1,000) | Variable, tied to the planned expense (e.g. business trip) |
| Return of surplus | Periodic replenishment from bank account | Cash return or deduction from payroll |
| Fraud risk | Undocumented withdrawals, inflated cash balance | Personal expenses, falsified receipts |
| Control frequency | Weekly or at least monthly | At expense report (policy deadline, e.g. 30 days) |
| Typical SME use | Minor office expenses | Business travel, on-site purchases, operational emergencies |
Accounting under Swiss rules
For both petty cash and expense advances, the principle remains the same: no expense without supporting documentation, no movement without a journal entry. Here are the most common accounting flows:
Petty cash: operational cycle
1. Establishing the float — Withdrawal from the bank account to fund petty cash: debit Cash (1020), credit Bank (1021). The initial float is not an expense.
2. Paying an expense — Example: office supplies purchased for CHF 45.00 in cash. With a valid receipt: debit Office expenses (6xxx), credit Cash (1020). VAT included in the price must be split out if you intend to exercise the right to deduct input tax.
3. Periodic replenishment — When petty cash falls below the minimum threshold, it is topped up from the bank account. At month-end, verify that: book balance = physical cash + receipts for expenses not yet posted.
Expense advance: operational cycle
1. Disbursement of the advance — Example: advance of CHF 300.00 to an employee for a business trip. Debit Employee expense advances (1140), credit Bank or Cash.
2. Submission of the expense report — The employee submits receipts for CHF 248.50. Debit expense accounts (travel, meals, entertainment), credit Employee expense advances (1140) for the supported portion.
3. Closing the balance — The surplus of CHF 51.50 is returned in cash or deducted from the next payslip. Account 1140 must return to zero for that specific advance before a new one is issued.
Integrated numerical example
A Ticino-based SME maintains a CHF 500.00 petty cash float. At month-end, documented expenses total CHF 127.80 (supplies and courier), with CHF 372.20 cash remaining. A physical count confirms the balance. In the books: total cash outflows posted = CHF 127.80; balance on 1020 = CHF 372.20. In parallel, a technician received a CHF 200.00 advance: on expense report, they submit receipts for CHF 186.40 and return CHF 13.60. Costs are allocated to the correct client project, with VAT split by rate.
Tax limits, VAT, and deductibility
Swiss law does not set a legal maximum amount for petty cash, but imposes strict requirements on documentation and the plausibility of expenses. "Tax" limits are primarily operational and linked to FTA and cantonal practice:
VAT deduction: the receipt is not optional
To deduct input tax on a cash purchase, you need supporting documents compliant with the VAT Act (Art. 26 VAT Act): supplier identification, date, description, amount, and tax rate. Without a valid document, the cost may be booked but VAT is not recoverable.
For amounts above CHF 400 (VAT included), Art. 57 VAT Ordinance requires a full invoice under Art. 26 VAT Act, showing the recipient. For amounts up to CHF 400, a compliant till receipt may suffice; as an internal rule, many SMEs set a lower ceiling anyway (e.g. CHF 100–200), above which payment is made by bank transfer.
Deductibility for income and profit tax purposes
An expense is deductible if it is genuinely incurred in the company's interest, documented, and commercially justified (Art. 58 CITA for corporations; Art. 27 PITA for sole proprietorships). Entertainment expenses are deductible if incurred in the business interest; federal law does not provide a percentage cap on turnover, but the FTA may challenge disproportionate amounts or those of a personal nature.
Cash payments do not exempt you from proving the business nature of the expense. In a tax audit, the Federal Tax Administration may challenge items with no link to business activity or no supporting documentation.
Cash payments: legal framework and good practice
Swiss law does not impose a general legal limit on cash payments in commercial transactions for ordinary businesses. Identification and reporting obligations under anti-money laundering law (AMLA) apply to financial intermediaries in cash transactions (thresholds of CHF 5,000/15,000), not to day-to-day petty cash management. In commercial practice, payments nevertheless tend toward traceable instruments (bank transfer, card, corporate TWINT).
Operational recommendation: define in writing a maximum amount per single petty cash transaction (often CHF 50–100) and prohibit cash payments to recurring suppliers, except where duly justified.
Anti-fraud controls: the minimum standard for an SME
Petty cash and expense advance fraud are among the most common offenses in small businesses, precisely because controls are weak. An effective structure does not require an internal audit department: clear rules and segregation of duties are enough.
Segregation of duties
- The person who holds petty cash does not approve their own expense reports
- The person who disburses advances is not the sole reviewer of receipts
- The owner or trustee periodically verifies balances
- Dual signature for replenishments above the internal threshold
Reconciliation and inventory
- Physical cash count on a fixed schedule (weekly/monthly)
- Petty cash register with date, amount, purpose, and signatory
- Verify that every employee advance is settled within the policy deadline (e.g. 30 days)
- Immediate reporting of imbalances, even minor ones
Warning signs to monitor
| Anomaly | Possible risk | Corrective action |
|---|---|---|
| Petty cash always at maximum with no replenishments | Unrecorded expenses or unbanked receipts | Extraordinary inventory and register review |
| Repeated receipts for the same amount | Recycled or duplicate supporting documents | Cross-check date/amount/supplier |
| Permanent advances to the same employee | Using the fund as a personal loan | Block new advances until balance is zero |
| Recurring rounding at month-end | Artificial adjustment of the balance | Zero tolerance; investigate discrepancies |
| Holiday/night expenses inconsistent with role | Disguised personal expenses | Check prior approval and policy |
Practical setup: internal policy in six steps
An SME can formalize petty cash and expense advance management in a few days. A written policy—even a one-page document—is the basis for consistent controls and for demonstrating diligence during audit:
- Define amounts and thresholds — Maximum petty cash float, limit per single expense, maximum advance per employee and per period.
- Appoint the custodian — One person responsible for physical cash and the register; a designated substitute for absences.
- Standardized templates — Advance request form, expense report sheet, petty cash register with sequential numbering.
- Control schedule — Weekly or monthly reconciliation with signature of an independent reviewer (owner, external CFO, or trustee).
- VAT rule and expense accounts — Table indicating for each expense type the ledger account and applicable VAT treatment.
- Digitization — Immediate capture of receipts (photo or scan) in the accounting system, linked to the cash movement or expense report.
Digitization with Accountex: from receipt to journal entry
Accounting software such as Accountex reduces the risk of errors and delays in closing expense advances. Digital capture of the receipt at the time of payment avoids the classic problem of wallets full of forgotten receipts. Every petty cash outflow can be recorded with purpose, expense account, and attachment, keeping balance 1020 aligned with the physical count.
For employee advances, the ideal flow involves recording the disbursement on account 1140, entering project expenses with scanned attachments, and automatically closing the balance when cash is returned or offset in payroll. Reports by account and by employee help identify advances left open too long—one of the first indicators of weak controls.
From an audit perspective, full digital traceability (who entered, who approved, when) strengthens proof of the orderly bookkeeping required by Art. 957 et seq. CO.
Common mistakes to avoid
Confusing petty cash with a personal advance
Handing cash to an employee without posting through account 1140 masks a receivable from staff and prevents effective controls.
Recording expenses without supporting documentation
Allowing "on trust" expenses undermines the credibility of the books and exposes you to tax adjustments, especially where VAT is unsupported.
Maintaining excessive floats
Petty cash holding thousands of francs increases theft risk and complicates reconciliation without real operational benefit.
Deferring reconciliation
Postponing controls makes it impossible to reconstruct discrepancies and encourages opportunistic behavior.
Ignoring periodic closure of advances
Advances left open for months indicate a de facto unlimited expense fund, with potentially non-deductible costs and risk of abuse.
Conclusion: little cash, much discipline
Petty cash and expense advances are legitimate, useful tools for the operational flexibility of a Swiss SME, provided they are sized modestly, recorded rigorously, and monitored with simple but consistent controls. Tax and accounting law does not penalize the use of cash in itself, but the lack of evidence and organization.
Investing one hour in defining an internal policy and configuring workflows in Accountex costs less than a single tax adjustment or a petty cash mishap discovered at year-end close. For business owners and fiduciary firms, the rule is clear: little cash on hand, every franc traced, every receipt captured immediately.