VAT identification number pursuant to § 27a of the German VAT Act (UStG): DE450382164
Consumer dispute resolution
We are neither willing nor obliged to take part in dispute resolution proceedings before a consumer arbitration board.
Information about the product KontoVexa
KontoVexa is a software-as-a-service platform for invoicing, accounting and business management.
KontoVexa has been publicly available since September 2026 and has been offered commercially ever since.
The trademark KONTELIO is registered with the German Patent and Trade Mark Office (Deutsches Patent- und Markenamt, DPMA) under register number 302026255132 in class 42. Filing date: 04/10/2026.
KontoVexa is operated by Paulo Roberto Balmer.
Cookies and browser storage
The only necessary item is storing your choice here. With your consent we also remember comfort settings such as the price view you picked, measure with Google Analytics how the website is used, and with Google Ads and the Meta Pixel (Facebook, Instagram) whether our ads lead to a signup. Meta may also use this data for its own purposes, such as delivering ads; data may be transferred to the USA. The tawk.to live chat is also only loaded after your consent; it transfers data to the USA. Privacy
Stores your choice in this notice and – for the current session only – whether you closed the free-trial notice.
Remembers whether you want to see the prices monthly or yearly.
Helps us understand which pages are visited and how visitors find the free trial. Sets cookies (_ga) and transfers usage data to Google, including to the USA. No advertising features.
Measures whether visits through our ads on Google, Facebook or Instagram lead to a signup, a trial or a subscription (conversion tracking), also in the KontoVexa app and in the customer portal of Balmer Systeme. Sets cookies (_gcl_*, _fbp, _fbc) and transfers data to Google and Meta, including to the USA; when you sign up, Meta also receives your e-mail address as a hash. Meta may also use the data for its own advertising purposes. No remarketing by us.
Loads the tawk.to chat. Your IP address, browser data and chat contents are transferred to tawk.to (USA).
Black Deal 50% off the first year with annual billing – only until December 31, 2026. 