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.

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  1. Data and security

    Cyberattacks: who must report them in Switzerland and how fast

    Since 2025, cyberattacks on critical infrastructure must be reported within 24 hours. Data breaches also go to the FDPIC. Who is concerned and how it works.

    3 min read

  2. 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

  3. Software projects

    Custom software: eight security questions before you sign

    Data, encryption, access, dependencies, logs, backups: eight questions to ask your provider before you entrust them with building a piece of software.

    3 min read

  4. 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

  5. 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

  6. 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

  7. Data and security

    Swiss FADP: what your website must show

    Privacy policy, cookies, forms: what the Swiss Federal Act on Data Protection has required of a company website since September 2023, in plain words.

    3 min read

  8. Data and security

    Hosting in Switzerland: what it really changes for your data

    A server in Switzerland does not keep your data in Switzerland on its own. Applicable law, subprocessors, transfers: what to check with a hosting provider.

    2 min read

  9. Software projects

    Before you ask for a quote: what your project brief should contain

    A quote is only as reliable as the request behind it. The seven points to write down before asking an agency to build a website, an app or custom software.

    2 min read

  10. 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

  11. Software projects

    Custom software or an off-the-shelf solution: how to decide

    Having software built or adopting an existing solution: the concrete criteria for deciding, the costs people forget about and the middle way between the two.

    2 min read

  12. Data and security

    Backups: the 3-2-1 rule for a small business

    Three copies, two media, one off site: the 3-2-1 backup rule applied to a Swiss SME. Plus what it does not cover and the test almost nobody ever runs.

    2 min read