Try OS/ free and without restrictions for 6 weeks.

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Project accounting made easy with OS/.

OS/ Projektabrechnung Übersicht

Manage your project billing and e-invoicing with ease.

ZUGFerdX Rechnung

OS/ flags planned and pending invoices and simplifies financial planning, even for complex projects. Concentrate on your core business - OS/ takes care of the financial details.

Simple
project accounting

Easy project billing in OS/ means you can leave the paperwork and complexity behind. Our system makes billing your projects a breeze: with just a few clicks, all the data is captured and you can focus on what really matters - making your project a success. Efficiency, clarity and control over your project accounting, without any headaches.

Einfache Projektabrechnung Übersicht
OS/ Rechnungsstellung

Flexible
invoicing

Whether it's down payments, partial final invoices or item-related invoices - with OS/ you can master any of these challenges effortlessly.

Directly into your accounting software

With OS/ you can easily create compliant outgoing invoices and transfer them directly to your accounting software.

Forget about additional financial software or complex middleware! With OS/, you'll find everything in one place.

OS/ Buchhaltung

We will be happy to advise you on a personal product tour

Arrange a consultation with us now. Our experts will give you an overview, answer your questions, and create a trial version for you.

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