Automated accounting in online retail
Discover the smart integration between store, tax consultant and DATEV.
How AccountOne works
AccountOne is the central solution for preparing your e-commerce data for the tax consultant. Your sales, incoming payments and fees are automatically merged, processed in a structured manner and provided in DATEV format. Developed with tax firms and online retailers, AccountOne efficiently maps even complex requirements and special cases in online retail - without detours or additional effort.

Your individual price check:
circa: Transactions
What is a transaction?
Each of these movements counts as a transaction:
- Sale
- Sales refund
- Customer payment
- Customer repayment
- Commingling (currently only on Amazon)
- Shipment (currently only at Amazon)
Ø 2.2 transactions per order - based on the average of our customers
More orders? No problem - we will contact you afterwards. Simply register and test for 14 days free of charge.
Your calculated price
bis 200 Transaktionen
per month - plus VAT.
Our services
Solutions for online retailers and tax consultants
AccountOne offers a fully automated integration that automatically creates accounting imports from online sales via Amazon, eBay or the online store, which can be imported into any accounting system with a DATEV integration.
Integrations
We offer integrations to the most important marketplace and store systems.
VAT matrix
Fully automatic VAT assessment of all sales, Europe-wide. Also for dropshippers and PAN-EU traders.
Accounting export
100% DATEV-compatible & batch processable. No rework needed in accounting.
Support
We are there for our customers – you can reach us personally by phone or e-mail.
SaaS
Accessible directly via web browser without installation. 24/7 Up-to-Date!
Minimally invasive
AccountOne integrates into the existing tech stack without blocking other systems.
Try AccountOne free of charge and without obligation
Our integrations
Adyen
Amazon
AmazonPay
Base
Billbee
BMD
Chargebee
Conrad
DATEV
Decathlon (Mirakl)
eBay
Etsy
Home24 (Mirakl)
Hornbach (Mirakl)
JTL
Kaufland
Klarna
Magento
MediaMarkt (Mirakl)
METRO
Mollie
Navision
OTTO
PayPal
plentyONE
SAP
Saturn (Mirakl)
ShopApotheke (Mirakl)
Shopify
Shopify Payments
Shopify Plus
Shopware 5
Shopware 6
Simba
Stripe
Temu
Voelkner
WooCommerce
WooCommerce Payments
Xentral
Zalando
ZooPlus (Mirakl)
Frequently asked
How much does AccountOne cost?
The price is based on the number of monthly transactions (e.g. sales).
There are no versioning or premium plug-ins in AccountOne - every customer has unlimited access to all tools and functions.
How many integrations are included in the price?
As many as you need. We do not charge for the number of integrations. In this way, we support the carefree expansion of online retailers.
What if no API is available?
The market for store and marketplace systems is growing continuously. That is why we are constantly connecting new systems to our solution. If a system is still not covered, we have the option of processing this data via upload.
Can I use all functions during the test period?
Yes, we are convinced that a test can only be successful if everything can be tested.
The only fly in the ointment: retroactive exports can only be ordered in the live system.

Do you need help quickly?
Knowledge base
Our knowledge base is your point of contact for all questions relating to AccountOne! Here you will find step-by-step instructions and helpful tips to make your everyday life easier. Whether you're new to us or just want to look something up - we have the answers you're looking for.

Still haven't found the right tax advisor?
We will help you with your search!
Our PartnerNet is your platform to network with experienced tax law firms! Here you will find selected law firms that will provide you with professional support for your tax challenges in e-commerce. Whether you are looking for a law firm for the first time or are considering a change - in the PartnerNet you will find the right expert who knows AccountOne inside out.