Expense Reports in Switzerland: A Practical Guide for SMEs

Expense reports are part of daily life for many Swiss SMEs: client visits, business meals, equipment purchases, hotels, parking, train tickets, entertainment expenses, and minor costs related to remote work.

But behind what appears to be a simple process lie several important challenges: receipts, VAT, OASI, salary certificate, internal approval, accounting, and document retention.

Poor management can quickly lead to accounting errors, disputed reimbursements, lost recoverable VAT, or corrections during an audit. Conversely, a clear process saves time, secures reimbursements, and improves the company's financial visibility.

In this guide, we review best practices for managing expense reports in a Swiss SME.

This article provides a practical overview. It does not replace fiscal, legal, or fiduciary advice tailored to your specific situation.

What Is an Expense Report in Switzerland?

An expense report is a document through which an employee requests reimbursement for costs incurred in the course of their professional activity.

It may cover, for example:

• a train ticket to visit a client;
• a meal taken during a business trip;
• a hotel night;
• parking fees;
• use of a private vehicle for professional purposes;
• a client invitation;
• the purchase of minor equipment required for work.

The goal is to clearly distinguish what constitutes a reimbursable business expense from what constitutes a personal expense or a salary benefit.

Business Expenses, Reimbursement, and Salary: Distinguishing the Concepts

In Switzerland, costs necessary for the performance of work must in principle be covered by the employer. When properly documented and justified, reimbursements of business expenses are generally not considered as salary.

The distinction matters, as the treatment differs:

Type of payment	Usual treatment
Reimbursement of justified business expenses	Not considered salary if compliant and documented
Excessive or unjustified flat-rate allowance	May be reclassified as salary
Reimbursement of personal expenses	May be taxable or subject to social contributions
Costs related to the regular commute to work	To be handled carefully, often distinct from reimbursable business expenses

For an SME, the key challenge is being able to demonstrate that the expenditure is genuinely linked to the professional activity.

Why Swiss SMEs Need to Structure Their Process

In a small organisation, expense reports are sometimes managed by email, spreadsheet, or photos of receipts sent to the accountant. This method may work at the start, but it quickly shows its limits:

• incomplete or lost receipts;
• verbal approvals that are difficult to prove;
• duplicate reimbursements;
• VAT errors;
• excessively long reimbursement delays;
• lack of visibility into costs per employee, project, or client;
• time-consuming manual data entry.

A clear process protects the company, the employees, and the person responsible for accounting.

What Expenses Can an SME Reimburse?

Not all expenses are automatically reimbursable. An SME must define accepted categories, any applicable limits, and required receipts.

Business Travel

Travel expenses are among the most frequent. They may include: train tickets, public transport, plane tickets, taxis when justified, parking fees, tolls related to a business trip, and mileage allowance when a private vehicle is used.

To avoid ambiguity, the company should specify whether public transport is preferred, under what circumstances a taxi is acceptable, how to declare kilometres travelled, and what information must appear in the expense report.

Example of a mileage allowance entry:

Date: 12.03.2026
Employee: Sophie Martin
Route: Lausanne – Geneva – Lausanne
Purpose: client meeting
Kilometres: 128 km
Rate: CHF 0.75/km
Amount claimed: CHF 96.00

Meals, Accommodation, and Business Travel

Meals and hotel stays may be reimbursed when linked to a professional activity: a client visit, trade fair, training course, assignment in another city, or a business trip.

For meals, the SME may operate either via actual reimbursement against receipts or via a flat rate if the internal policy or an expense policy document provides for it. In Swiss practice, amounts must remain reasonable and consistent with standard usage.

For accommodation, it is recommended to request an invoice showing the hotel name, the date of the stay, the amount, VAT if applicable, and ideally the name of the company or employee.

Entertainment Expenses and Client Invitations

Entertainment expenses relate to costs incurred to maintain or develop business relationships: a meal with a client, a professional coffee, an invitation in the context of a negotiation, an event with partners, or a reasonable small commercial gift.

These expenses are sensitive, as they can be difficult to distinguish from personal spending. It is therefore advisable to systematically include in the expense report the name of the invited client or partner, the company represented, the professional purpose, the date, the receipt, and the attendees.

Remote Work, Phone, and Minor Expenses

Some SMEs also reimburse costs related to remote work or the use of personal equipment: contribution to phone costs, internet subscription, office supplies, printing, minor IT equipment, or postal costs.

These expenses must be governed by clear rules. A regular flat-rate allowance, even a modest one, should be documented in an internal policy or expense policy document.

Receipts: What Documents Should Be Retained?

The receipt is the foundation of a reliable expense report. Without a receipt, the company takes on an accounting, fiscal, and organisational risk.

Essential Information on a Receipt

A usable receipt should ideally contain the date of the expense, the name of the supplier, the nature of the service or goods purchased, the amount paid, the currency, the VAT rate and amount when relevant, and the payment method.

For a more complete invoice, useful information also includes the supplier's UID/VAT number, the supplier's address, the breakdown of services, the pre-tax total, the VAT, and the total including VAT.

Tickets, Digital Invoices, and Scanned Receipts

Receipts may be paper or digital. In practice, many SMEs today accept photos of tickets, PDFs received by email, electronic invoices, payment receipts, or booking platform screenshots if they contain the necessary information.

The key point is the legibility and integrity of the document. A blurry, cropped photo or one without an amount is not sufficient. It is preferable to use a tool that allows the receipt to be captured immediately and linked to the expense report.

How Long Should Expense Reports Be Retained?

In Switzerland, accounting documents must generally be retained for 10 years. Expense reports, tickets, invoices, and associated approvals must therefore be archived reliably.

For an SME, this entails filing by period, linking the expense report to the accounting entry, retaining receipts, and being able to quickly locate a document in the event of an audit.

VAT and Expense Reports: What an SME Must Verify

Expense reports have a direct impact on VAT when the company is registered and declares using the effective method.

Recovery of Input Tax

A VAT-registered SME can generally recover input tax on business expenses, provided that the expense is linked to the entrepreneurial activity, the receipt is compliant, VAT is correctly indicated, and the company uses a method that allows for effective input tax recovery.

If a receipt is incomplete, VAT may be difficult or even impossible to recover correctly.

The Case of Small Receipts up to CHF 400

For small amounts, cash receipts may suffice if they contain the essential information. In Switzerland, for receipts up to CHF 400 including VAT, identification of the recipient is generally not required.

Even in this case, it remains advisable to add to the expense report the professional purpose, the employee concerned, the linked project or client, and the accounting category.

Effective Method or Net Tax Rate Method

With the effective method, the company declares the VAT collected and deducts input tax on its purchases and expenses.

With the net tax rate method, the company applies a simplified rate to its turnover. In this case, input tax is not recovered invoice by invoice.

Practical consequence: even if VAT is not recovered analytically in the second case, receipts remain essential for accounting, expense justification, and internal controls.

OASI, Taxes, and Salary Certificate

Expense reports do not only concern accounting. They also have an impact on payroll and declarations.

When a Reimbursement Is Not Salary

A reimbursement of real and documented business expenses is generally not considered as OASI-relevant salary. Typical examples: a train ticket for a client appointment, a hotel during a business trip, a meal taken on assignment, a reasonable mileage allowance for professional use of a private vehicle, or documented entertainment expenses.

The logic is straightforward: the employee is not enriched. They recover an expense incurred on behalf of the company.

Caution with Excessive Flat Rates

Flat rates are practical, but they must remain consistent with the reality of the expenses. A flat rate may pose a problem if it is too high, paid without justification, unchanged even during extended absences, covers personal expenses, or serves to indirectly supplement salary.

In such cases, the allowance may be reclassified as salary, with possible consequences for OASI, taxes, and the salary certificate.

Expense Policy: Useful for Securing Practice

For SMEs that regularly reimburse expenses or pay flat rates, an expense policy is strongly recommended.

It enables the company to specify accepted expense categories, limits, required receipts, approval rules, submission deadlines, flat-rate allowances, treatment of private vehicles, entertainment expenses, and expenses abroad.

An expense policy approved by the competent tax authority can provide additional security, particularly for flat rates and the treatment of the salary certificate.

Mileage Allowances and Flat-Rate Expenses in Switzerland

Mileage allowances and flat rates are common in SMEs, but they must be used correctly.

Private Vehicle Used for Professional Purposes

When an employee uses their private vehicle for professional trips, the company may reimburse the kilometres travelled.

In practice, a rate of CHF 0.75 per kilometre is frequently used as the standard maximum reference in Swiss expense policy models.

The expense report should indicate the date, route, professional purpose, number of kilometres, applied rate, total amount, and the relevant client or project if applicable.

Meals and Minor Expenses: Standard Limits

For meals and minor expenses, SMEs may choose between actual reimbursement and flat rates.

Type of expense	Example standard limit
Breakfast while travelling	CHF 15
Main meal flat rate	CHF 30
Evening meal flat rate	CHF 35
Daily minor expenses	CHF 20
Mileage allowance – private vehicle	CHF 0.75/km

These amounts must be applied with discernment. They do not replace a clear internal policy or an analysis of the company's actual situation.

Why Flat Rates Must Still Be Documented

Even when a flat rate is applied, the company must be able to explain to whom it applies, why it is necessary, how the amount was determined, what expenses it covers, and in what circumstances it is reduced or eliminated.

A flat rate must not become disguised remuneration. It should approximately correspond to real business expenses.

How to Set Up a Simple Process in an SME?

Good expense report management does not necessarily require complex organisation. The key is to standardise the process.

Step 1: Define a Clear Internal Policy

The expense policy must answer simple questions: which expenses are reimbursable, which are not, what limits apply, who approves expense reports, within what timeframe employees must submit their expenses, what receipts are mandatory, how to handle expenses in foreign currency, and how to manage expenses paid with a company card.

Step 2: Digitise Receipt Collection

Digitisation significantly reduces the loss of tickets and data entry errors.

An effective process allows the employee to take a photo of the receipt, enter the amount, select the category, indicate the professional purpose, link the expense to a project, client, or cost centre, then submit the expense report for approval.

Step 3: Approve Before Reimbursement

An expense report should be approved before reimbursement. Depending on the size of the company, approval may be carried out by the line manager, management, the finance manager, the fiduciary, or an internal administrator.

The approval must verify the consistency of the amount, the professional nature of the expense, the presence of the receipt, compliance with limits, the correct category, and the project or client concerned.

Step 4: Correctly Account for Expenses

Once approved, the expense report must be integrated into the accounting records. Depending on the case, the entry may relate to a travel account, meals and entertainment, accommodation, supplies, recoverable VAT, an employee to reimburse, or a company card.

Correct categorisation enables reliable reporting: expenses by month, by employee, by project, by client, or by expense type.

Common Errors to Avoid

Certain errors recur regularly in SMEs.

Mixing Personal and Professional Expenses

A private meal, a personal trip, or a purchase unrelated to the company should not be reimbursed as a business expense. If an expense includes both a personal and a professional component, it must be split or a separate receipt requested where possible.

Reimbursing Without Sufficient Receipt

A reimbursement without a receipt may pose a problem in the event of an audit. It may also create internal friction if rules are not applied consistently across all employees.

Best practice: no reimbursement without a receipt, except for exceptions that are provided for and documented.

Forgetting the VAT or Payroll Impact

An expense report may affect recoverable VAT, the salary certificate, social contributions, income statement accounts, and employee reimbursements. Accounting, payroll, and tax should not be treated as separate silos.

Failing to Standardise Approvals

If each manager approves differently, the company exposes itself to inconsistencies: similar expenses accepted for one employee and refused for another, verbal approvals, variable limits across teams.

A common rule avoids these situations.

Why Manage Expense Reports in a Swiss ERP?

For an SME, expense reports are not an isolated topic. They touch accounting, human resources, VAT, projects, and sometimes client invoicing.

An ERP allows all this information to be centralised.

Less Manual Data Entry

With an integrated tool, employees enter their expenses once. The data can then be used for approval, reimbursement, accounting, VAT, internal reporting, and project tracking.

This reduces double entries, omissions, and transcription errors.

Better Accounting Traceability

Each expense report can be linked to a receipt, an employee, a date, a category, an accounting account, a project, a client, and an approval status.

In the event of a query, the company can quickly trace the origin of an expense.

A Direct Link with Accounting, Payroll, and VAT

The advantage of an ERP is connecting processes. For example, an approved expense report can generate an accounting entry, VAT can be processed according to the company's settings, the reimbursement can be integrated into the payment cycle, and project-related expenses can be tracked in the margin.

For a Swiss SME, this integration avoids multiplying Excel files, email exchanges, and manual re-entries.

Practical Checklist for a Compliant Expense Report

Before reimbursing an expense report, verify the following points:

• The expense is linked to the professional activity.
• The receipt is legible.
• The date is visible.
• The amount is clear.
• The currency is indicated.
• VAT is identifiable if necessary.
• The professional purpose is stated.
• The client, project, or cost centre is indicated if relevant.
• The internal limit is respected.
• The expense report has been approved by the appropriate person.
• The accounting entry is correctly categorised.
• The receipt is archived.

Example of a Simple Expense Policy for an SME

Here is a structure you can adapt to your company:

1. General principle
Business expenses necessary for the company's activities are reimbursed upon presentation of a valid receipt.

2. Deadlines
Expense reports must be submitted no later than 30 days after the expense was incurred.

3. Receipts
Each expense must be accompanied by a legible ticket, receipt, or invoice.

4. Meals
Meals are reimbursed when they are linked to a business trip or a documented client invitation.

5. Travel
Public transport is preferred. Use of a private vehicle is reimbursed at the mileage rate defined by the company.

6. Approval
All expense reports must be approved by the designated manager before reimbursement.

7. Non-reimbursable expenses
Personal expenses, fines, personal purchases, and unjustified costs are not reimbursed.

8. Archiving
Receipts are retained with the accounting records in accordance with the applicable legal retention periods.

This type of simple document already helps clarify expectations and reduce case-by-case discussions.

Conclusion: Good Expense Management Protects the SME

Managing expense reports in Switzerland goes beyond reimbursing receipts. It touches accounting, VAT, social insurance, taxation, payroll, and internal controls.

For an SME, best practices are clear: define an expense policy, require complete receipts, document the professional purpose, approve expenses before reimbursement, handle VAT correctly, avoid excessive flat rates, retain documents reliably, and integrate the process with accounting.

The larger the company grows, the more fragile a manual process becomes. A centralised tool saves time, avoids errors, and maintains a clear view of costs.

Simplify Your Expense Report Management with Neoffice

Neoffice helps Swiss SMEs centralise their administrative management in a complete ERP: accounting, invoicing, SwissDec payroll, commercial management, POS, e-commerce, and internal processes.

With an integrated solution, your company can better structure its expense reports, improve the reliability of accounting data, and reduce manual tasks.

Would you like to modernise the financial management of your SME? Discover Neoffice and implement a simpler, clearer process better suited to Swiss requirements.

Useful Sources

• Swiss Federal Tax Administration — Guide for completing the salary certificate
• Swiss Tax Conference — Model expense reimbursement policy
• Federal Social Insurance Office — Directives on OASI/DI/IC relevant salary
• Swiss SME Portal admin.ch — VAT, accounting, and invoicing
• Swiss Federal Tax Administration — Applicable VAT rates in Switzerland