Postfinance fixes two-hour glitch displaying zero balances in Swiss banking apps

Balance display glitch on digital platforms

On Saturday, 19 September 2026, customers accessing Postfinance services encountered an unexpected technical glitch across the institution's digital infrastructure. Users opening the Postfinance mobile application and the web-based online banking portal found that their account balances displayed zero Swiss francs. The sudden disappearance of visible funds affected both regular accounts and investment depot holdings, showing values of CHF 0.00 on account overview screens. The incident occurred during midday on a Saturday, a time when many private customers log into their profiles to complete personal payments and review financial positions. Multiple account holders noted that the issue appeared across several profiles simultaneously, including linked accounts belonging to family members.

Outage tracking and customer reports

Reports concerning the digital malfunction began accumulating rapidly on third-party outage tracking platforms during the early afternoon. On the monitoring website Allestörungen.ch, user reports regarding Postfinance system failures saw a notable increase starting at 13:00 on Saturday. The vast majority of complaints registered on the platform focused on the Postfinance mobile banking app and online banking interfaces. Customer inquiries and screenshots sent to news outlet Blick documented zeroed-out balances across account categories and custody accounts. Users documented that logging into their mobile apps produced blank account summaries, leaving them temporarily unable to verify account holdings. The disruption continued for roughly two hours, during which account holders checking their balances were presented with empty account screens while attempting to navigate their banking services.

Operational response and technical clarification

Following the detection of the glitch, technical teams at Postfinance worked at high pressure to address the system failure and restore regular interface functionality across all channels. The institution initiated troubleshooting measures to correct the database communication issue affecting client displays. Shortly before 14:30 on Saturday afternoon, the financial institution declared the incident resolved and issued an official all-clear for its digital banking platforms. In statements provided to the Keystone-SDA news agency, a Postfinance spokesperson explained that the situation stemmed entirely from a presentation problem within the software interface. The spokesperson stressed that account balances had remained intact and that customer money was completely safe and present in their accounts throughout the entire two-hour duration of the malfunction.

It was a display error.

Security of funds and formal apology

The resolution of the glitch confirmed that the underlying banking ledgers were not affected by the two-hour visual blackout. Postfinance emphasized that at no point were customer funds at risk, as the internal ledgers maintained accurate financial records while the public-facing apps rendered zero balances. Bank representatives confirmed that all transaction histories and balance calculations remained intact throughout the glitch without any data loss. Once technical adjustments were completed, the digital applications returned to displaying correct Swiss franc totals across all standard accounts and deposit holdings. The institution addressed the disruption by issuing an explicit apology to all clients who experienced distress or inconvenience during the Saturday outage.

We apologize to the customers.