The secret to clean Mollie accounting with just a few clicks

AccountOne forms the smart interface between Mollie 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 Mollie and your accounting department - for smooth, tax-compliant processing. Even complex Mollie data is processed by us and converted into clear exports - exactly as your tax advisor 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 Mollie and your tax advisor
  • Synchronization of several Mollie accounts at the same time
  • Conversion of incoming payments and fees into clean accounting data and linking to revenues
  • Time savings for you and your tax advisor

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

Connection Mollie
With just a few clicks, you can connect your Mollie account to AccountOne. We'll do the rest for you together with your tax advisor.
Instructions for connecting Mollie
Fully automated data retrieval
Our API interface retrieves the data from Mollie several times a day and makes it available as accounting data on a monthly basis.
Matching with invoices
The payment transactions are automatically assigned to the corresponding invoices. 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

The data can be retrieved fully automatically via API with just a few clicks. We have provided detailed instructions for this in the helpdesk.

Once the data from the payment service provider Mollie has been imported into AccountOne for accounting with DATEV, the system begins to assign the individual payment transactions to the corresponding invoices from the online store or the invoice (in the case of SaaS). The assignment is made using special transaction identifiers that are already contained in the order data from the online store or the data from the invoice.

This assignment also makes it possible to address the correct debtor. It is therefore not necessary to intervene manually in DATEV.

Mollie is handled like a separate bank account for accounting purposes in DATEV. This "fictitious" bank account is then used to post both incoming payments from customers and the individual transaction-based fees as well as outgoing payments to the correct bank account. This is comparable to the booking method of a cash register.

Payments to the bank account are posted via cash transit and match the incoming funds in the bank account at 100%. This enables easy reconciliation in DATEV.

If, for example, PayPal is connected to Mollie, this channel can be excluded if desired.

AccountOne provides a DATEV-compatible CSV record for the payments from Stripe every month. This is regularly checked with the DATEV check 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).