Front End

„Front end“ generally describes everything that is visible on the internet to a user.

With regards to Payrexx, "Frontend" is the sales page that a customer can see.


Back End

„Back end“ stands for administration area of Payrexx account. In the "Back end" all types of settings can be changed. "Back end" menu is fixed and can not be adjusted. The content such as your pictures of your products can be uploaded, administered, changed, linked and deleted.



Dashboard is a tool that helps to create an overview of all important metrics within the software.

Payrexx dashboard looks in the following way:



Application programming interface (API) is a set of subroutine definitions, protocols, and tools for building software and applications. A good API makes it easier to develop a program by providing all the building blocks, which are then put together by the programmer. An API may be for a web-based system, operating system, database system, computer hardware, or software library. An API specification can take many forms, but often include specifications for routines, data structures, object classes, variables, or remote calls. Documentation for the API is usually provided to facilitate usage. The status of APIs in intellectual property.

Just as a graphical user interface makes it easier for people to use programs, application programming interfaces make it easier for developers to use certain technologies in building applications. By abstracting the underlying implementation and only exposing objects or actions the developer needs, an API reduces the cognitive load on a programmer. 



With the webhook a non - standard procedure for communication between servers is described. This procedure happens between diverse computers or update-oriented middleware.


New EU VAT from 2015 for e-services

From January 1, 2015, a major change came into force in the EU VAT law which has an enormous effect on both EU and non-EU companies (for example, registered in Switzerland). The law obliges suppliers of electronic
services to charge VAT in the country where the end customer is located.

Companies affected by this law (B2C providers) must now analyze how they can implement the new rules in their e-shops and accounting systems. The complexity degree of the law implementation is very high: in each EU
country VAT laws are different with their own regulations, VAT rates and applicable tax-free allowances.

Legal basis:

In Germany the Federal Central Tax Office (BZSt) can provide the necessary information and is the single contact point. Further information can be found under the following link:

Which providers and digital services are affected by the new VAT law?

B2C providers, targeting end consumers are affected. The law does not affect B2B providers.

The new regulations apply only to services and products which are delivered electronically. To the services and products, according to the point 3A.10 of revenue tax application decree (UStAE), particularly belong:

  1. Software downloads
  2. E-books, music and movie downloads
  3. Chargeable communities
  4. SaaS (for example online-tools)
  5. Online games
  6. Web hosting
  7. Web design, SEO & online marketing
  8. Streaming
  9. Online research services

Therefore, if you only sell physical products and services, the new rules do not apply to you.  For example, if you send music or some other software by post on a data carrier, instead of offering your customer to download it,
your case is longer a subject to the law.

Protest group of digital small enterprises under the name "EU VAT Action Team".

FAQ for German providers:

FAQ for Swiss providers:

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