# Mahnung (Payment Reminder) in Switzerland

A Mahnung is a formal payment reminder that Swiss businesses send to clients who have failed to pay an invoice by the due date. Unlike a simple reminder, a Mahnung follows a specific legal structure and has consequences for both parties. It's an essential tool for maintaining cash flow while preserving business relationships.

In Switzerland, the Mahnung is governed by the Swiss Code of Obligations (Obligationenrecht). The law allows businesses to claim default interest (Verzugszins) from the moment a payment becomes overdue, currently set at 5% above the base interest rate. This provides a strong incentive for clients to settle their debts promptly.

The typical Mahnung process follows three stages: first a friendly reminder, then a formal Mahnung with a deadline, and finally engagement of a debt collection agency (Betreibung). Each stage carries increasing weight and should be documented carefully. Many Swiss freelancers and SMEs find that a well-timed Mahnung resolves payment issues without needing to escalate.

Key elements of a valid Mahnung include the original invoice reference, the amount outstanding, the original due date, the new payment deadline, and a clear statement of potential consequences including default interest and collection actions. The document should be professional, factual, and sent via traceable means.

## Legal Framework and Your Rights

Swiss law provides specific protections for both creditors and debtors regarding Mahnungen. The Creditors' Rights Act (Gesetz über die Betreibung und die Konkordanz) establishes that a Mahnung must be clear and unambiguous about the amount owed and the deadline given. Vague or confusing language can invalidate the legal standing of the reminder.

For the creditor, sending a Mahnung triggers the default interest clock. This means that from the date of the Mahnung, unpaid amounts accrue interest at the statutory rate. It's important to note that the interest rate is revised twice yearly by the Swiss National Bank, so always check the current rate.

For the debtor, receiving a Mahnung doesn't mean immediate legal action. It's primarily a formal notice that gives the client one final opportunity to pay before the creditor engages a Betreibung (debt collection agency). Many debtors respond positively to a professional Mahnung, especially one that shows understanding of their situation.

Importantly, Swiss law limits how many Mahnungen a creditor can send before escalating. After three reasonable attempts without payment, the creditor can engage a Betreibung, which becomes a matter of public record and significantly damages the debtor's credit rating.

## Best Practices for Writing Effective Mahnungen

To maximize the chances of prompt payment, Swiss businesses should follow several best practices when writing Mahnungen. First, always reference the original invoice number and date clearly. Second, specify the exact new payment deadline, typically 10-14 days from the Mahnung date. Third, mention the default interest that will accrue from the original due date.

Second, keep the tone professional and factual rather than confrontational. A Mahnung that acknowledges the possibility of oversight or financial difficulty often works better than one that threatens immediate legal action. Many Swiss clients appreciate a direct but respectful approach.

Third, always send the Mahnung via registered mail (Registeredpost) or email with read receipt for documentation purposes. This provides proof of delivery if the matter escalates to legal proceedings or Betreibung later.

Fourth, keep copies of all Mahnungen and correspondence. Swiss tax authorities and courts may require evidence that proper collection procedures were followed before engaging a Betreibung. Documentation is your best protection.

## When to Engage Professional Help

If multiple Mahnungen go unanswered over 30-60 days, it may be time to engage a professional debt collection agency (BetreibungsAmt). These agencies specialize in recovering outstanding debts and operate within the Swiss legal framework. They can issue formal demands and, if necessary, initiate court proceedings.

Before engaging a Betreibung, ensure you've documented all previous Mahnungen and have a clear record of the debtor's non-response. The Betreibung process becomes a matter of public record, so it should be a last resort for preserving business relationships.

For ongoing clients you wish to preserve, consider working with a trusted advisor or mediator who can facilitate payment arrangements without damaging the relationship. Many Swiss SMEs find that a structured payment plan agreed upon after the third Mahnung resolves the situation amicably.