Project accounting made easy with OS/.
Manage your project billing and e-invoicing with ease.
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.
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.
We will be happy to advise you on a personal product tour
Book your OS/Expert appointment now. Our experts will give you a personal overview of relevant functions, answer all your questions and set up an individual test account for your business.