Articles

Articles: custom software, accounting and Swiss VAT, explained by Qwasar.

What we learn building software for Swiss companies: VAT, QR-bill, technical choices. Short, checked articles without needless jargon.

5 articles

  1. Accounting and VAT

    Fake IBAN change: the fraud that targets your accounts

    A genuine invoice comes back with a different IBAN, sometimes a new QR code. How this fraud works in Switzerland, how to spot it and what to do if you paid.

    3 min read

  2. Accounting and VAT

    QR-bill: structured addresses are mandatory since November 2025

    Since 22 November 2025, the Swiss QR-bill no longer accepts combined addresses. What has changed, how to check your invoices and the other rules to know.

    2 min read

  3. Accounting and VAT

    Swiss VAT return: effective method or net tax rate?

    Effective method or net tax rate method: conditions, reporting periods, pros and cons of the two ways to settle Swiss VAT, explained for small businesses.

    2 min read

  4. Accounting and VAT

    Swiss VAT: when do you become liable?

    The CHF 100,000 threshold, how to calculate it, the deadline to register and the option of voluntary VAT liability: the essentials for a Swiss business.

    2 min read

  5. Accounting and VAT

    Accounting software: installed or online?

    Installed software or online subscription: where your accounting data lives, who can read it and how to keep it for ten years as Swiss law requires.

    2 min read