The secret to clean eBay accounting with just a few clicks

AccountOne is the smart interface between eBay and your accounting department

Revolutionize your accounting together with AccountOne

Would you like to concentrate on sales instead of tax issues? AccountOne provides the fully automated interface between eBay and your accounting department - for smooth, tax-compliant processing. Even complex eBay data is processed by us and converted into clear exports - exactly as your tax consultant needs it.

More than 10 million online orders and the associated payments pass through our system - every month!
Over 5,000 online retailers already trust AccountOne, the most powerful platform for processing accounting data.

What AccountOne offers

  • Connection between eBay and your tax advisor
  • Synchronization of several eBay accounts at the same time
  • Conversion of purchase orders into clean accounting data
    and link to the payments
  • Time savings for you and your tax advisor

What our customers say:

"fynax offers tax consulting with a customized one-stop-shop service for e-commerce and digital businesses. As with all electronically structured companies, the tax-relevant data in online commerce is also available in corresponding digital form. The collection, processing and evaluation of such data often pose great challenges to entrepreneurs and to us as tax consultants, as the technical complexity requires special knowledge and experience. This knowledge and experience unites us with AccountOne. We share a very close and trusting cooperation and the desire to automate the accounting process for online merchants as far as possible and to make it efficient and secure. AccountOne supports us as a selected cooperation partner in all questions concerning the processing of mass data, interfaces and various store systems and marketplaces."

Features of the eBay DATEV interface

  • Orders
  • Payments
  • Fees
  • Delivery threshold monitoring
  • All marketplaces (ebay.de, ebay.co.uk, Motors and many more)
  • OSS reporting data included
  • Multishop capable - connects several eBay accounts to one AccountOne account
  • Multichannel capable - works hand in hand with all systems, even if data is duplicated
  • B2B and B2C sales - including verification of customer VAT IDs
  • Single posting - GoBD-compliant single posting procedure with automatic OP clearing

Preparatory accounting with eBay has never been so easy...

eBay connection
With just a few clicks, you can connect your eBay account to AccountOne. We'll take care of the rest for you together with your tax advisor.
Instructions for connecting eBay
Fully automated data retrieval
Our API interface retrieves the data from eBay several times a day and makes it available as accounting data on a monthly basis.
Comparison with payments
The revenue transactions are automatically assigned to the corresponding payments. The fee items and payouts are also posted fully automatically.
100% DATEV compatible export
Our exports are fully batch processable. The data can be imported directly using the DATEV board tools.

Minimally invasive integration

AccountOne integrates into the existing API and tech stack without affecting other systems.

Software as a service

Accessible directly via web browser without installation.
24/7 up-to-date!

Contemporary man browsing in touchpad

eBay order and payment data are retrieved fully automatically via API. The connection to eBay is set up in no time at all. Click on "Log in to eBay" in AccountOne and follow the instructions. Click here for detailed instructions: Ebayexport guide

Each eBay order is independently assessed in detail for VAT purposes. In this way, we ensure that the revenue postings arrive correctly in the accounting department. We transfer the revenue using the individual booking procedure. This means that each order also receives its own booking in the accounting department.

In addition, AccountOne reads out payments and charges and also creates postings for accounting from them. In addition, a payment movement is assigned to each individual revenue entry in accounting.

eBay orders are booked using the individual booking procedure - so each order receives at least one booking line. In the event that there are different tax situations, the posting can be split in order to display mixed tax rates.

The eBay payments are treated as a fictitious bank account in accounting. This is the only way that the 100%ig tax consultancy can be sure that all transactions have been posted without exception.

AccountOne provides a DATEV-compatible CSV record for the eBay orders and payments every month. This is regularly checked with the DATEV checking tools and guarantees a smooth import to DATEV. In addition, our export to DATEV is batch processable.

You therefore do not have to create an ASCII import, but can use the DATEV board tools to read in the data. This prevents errors during import.

Try AccountOne free of charge and without obligation

AccountOne Features

AccountOne means being able to map all sales and payment channels on one platform. We developed AccountOne for this purpose in close cooperation with tax firms and online retailers. The result is a high-performance software that can be individually tailored to the needs of both sides. In addition to classic online trading transactions, AccountOne also maps almost all special cases in online trading. We like to face new challenges and master them together with our customers.

Other interfaces

14 days free & full trial

Includes 3 backdated monthly exports, full access to the software and access to all support resources (helpdesk, email & phone).