From online retail to accounting
Made for tax consultants with e-commerce clients. Permanently free of charge for tax firms – for smooth collaboration with your clients.
More than
6,000online retailers
2,000tax consultants
love working with AccountOne.
A platform specifically for tax consulting
AccountOne is the most powerful platform for tax consultants who support clients in e-commerce. Sales and payment data from marketplaces, online stores and payment systems such as Amazon, eBay or Shopify are automatically processed and can be imported directly into any accounting system with a DATEV connection via our integration. Thanks to our own evaluation matrix, sales are precisely allocated to the correct tax rates and tax countries – even without a merchandise management system.
Payment flows are automatically assigned to the corresponding revenues on the platform. These structured data are used to create finished exports for further processing in the firm. AccountOne is specially tailored to the needs of tax consultants and offers a high degree of customization: from account assignment to the setting of complex tax issues. Our sophisticated templates ensure that even small clients can be mapped efficiently, securely and in a time-saving manner.
Integrations
We offer integrations to the most important marketplace and store systems.
VAT matrix
Fully automated 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!
DATEV Partner
We are a DATEV integration partner and have an integration that has been technically tested by DATEV.
DATEV Partner
As an official DATEV partner, we offer an integration technically tested by DATEV that gives you as a tax consultant a reliable and smooth data exchange. The import into DATEV Kanzlei-Rechnungswesen is secure, seamless and requires no additional effort.
For existing customers with an activated invoice module, data including the receipt image can be transferred via the DATEV booking data service. A manual export and subsequent import into DATEV is no longer necessary.
What our customers say:
“With AccountOne, I have found an IT partner that is able to develop very good solutions for the very individual and sometimes very complex store systems of my clients. I am always impressed by the high level of flexibility and team spirit in the development of solutions.”
Alexandra RoeskeTax consultant, CINA: Roeske law firm, BornheimTry AccountOne free of charge and without obligation
AccountOne Features
AccountOne combines all sales and payment flows on one central platform. Developed in close cooperation with tax firms and online retailers, it has become powerful software that adapts flexibly to the requirements of both sides. Beyond the typical structures of online retail, AccountOne also reliably handles a wide range of special cases – from cross-border sales to complex tax constellations. We welcome every new challenge – and develop the right solution together with our customers.
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)

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.

Looking for tax professionals in e-commerce?
PartnerNet
Our PartnerNet connects online retailers with experienced tax consultants who specialize in e-commerce and already work with AccountOne! Whether you are looking for experts or want to expand your network as a law firm - you will find what you are looking for in PartnerNet.
Free of charge for tax consultants
Your law firm uses AccountOne permanently free of charge – for smooth collaboration with your clients.