Amainvoice helps you automate your Amazon accounting — from transactions and payouts to handing over your data to your tax firm. Reduce manual work and keep track of obligations such as the One Stop Shop (OSS), even with complex selling setups.

Amainvoice is the only accounting and invoicing software developed specifically for Amazon sellers in Germany. It structures your Amazon transaction data, creates a reliable basis for accurate accounting and helps you identify typical risks at an early stage — from payout settlements to VAT obligations related to your Amazon business.
Connect your Amazon account in just a few steps. Amainvoice automatically imports the relevant business transactions, so you do not have to work with raw reports.

Amainvoice helps you identify inconsistencies and common sources of error, so you can resolve issues before they lead to questions from your accounting team or problems later on.

Fees, refunds and payouts are structured so you can assign and reconcile them accurately. You and your tax advisor no longer have to spend hours working through complex reports. Instead, Amainvoice provides itemised payout statements that can be processed in DATEV and other accounting systems.

Amainvoice creates invoices that match your setup and include all required information. This reduces manual follow-up work and minimises potential sources of error.

Send your prepared data to your accounting team or tax firm via export or an Amazon accounting integration, depending on your setup. This reduces back-and-forth communication and makes the process scalable as your sales volume grows.

Amainvoice structures the tax-relevant data from your Amazon business: from VAT calculation and invoicing to OSS, PAN-EU, CEE, and transfer to your tax advisor.
Amainvoice supports you with VAT calculation and generates invoices tailored to your Amazon setup – with or without Amazon VCS.
For intra-community B2C sales, Amainvoice records the relevant transactions, calculates the VAT, and provides the necessary data and OSS reports for your filings.
When storing goods in multiple EU countries, cross-border stock movements are tracked transparently, and relevant VAT sales reports are prepared for each storage country.
Transfer structured accounting and VAT data to your tax advisor via export or API – for example, in DATEV format. This allows your accounting team to work directly with the processed data.
Amainvoice was built for the needs of Amazon sellers — especially when FBA, multiple countries and growing transaction volumes are involved.
Document warehouse and inventory movements transparently and prepare the relevant data for international VAT and accounting processes.
Turn complex reports into clear numbers. Payouts, fees and refunds are structured so you can reconcile and record them accurately.
With or without Amazon VCS, your invoices are complete, accurate and compliant with applicable requirements.

Amazon offers a wide range of programmes for sellers — and each one comes with its own accounting challenges. Amainvoice helps you stay on top of your tax obligations and manage your business more efficiently.
You fulfil orders yourself and have full control over inventory and shipping? Amainvoice automatically creates invoices, records transactions and transfers tax-relevant data accurately to DATEV and other accounting systems.
Learn more about FBM accounting →Amazon handles storage and fulfilment for your products — but what about your invoices and tax data? Amainvoice ensures accurate invoicing and automatically records all relevant FBA transactions.
Learn more about FBA accounting →Storing inventory across multiple EU countries via the CEE program creates additional tax obligations. Amainvoice tracks these stock movements and prepares the relevant VAT and accounting data for your tax advisor.
Do you sell personalised products? Amainvoice identifies orders with customisations and creates compliant invoices, including when different VAT rates apply.
Amainvoice provides a transparent record of your inventory and sales movements, preparing all relevant VAT data for your tax advisor. For registrations and filings, we can connect you with international tax firms.
Learn more about PAN-EU accounting →As a vendor, you sell directly to Amazon — but who takes care of your invoices and credit notes? Amainvoice automatically creates compliant invoices and provides transparent accounting for your vendor transactions.
Learn more about vendor accounting →With just a few clicks, Amainvoice creates and forwards tax-relevant documents to systems such as DATEV. This saves time and creates greater certainty when processing Amazon transactions.
Show your clients that you are equipped to handle the challenges of e-commerce. Amainvoice covers complex cross-border tax requirements and helps you stay compliant at all times.


“At AMALYZE, our core focus is SEO and PPC for Amazon, as well as consulting. But one major area comes up again and again — and it requires absolute specialists.
In principle, the formula is simple:
Sourcing + logistics + Amazon + SEO + PPC + X = sales
But this formula regularly misses one essential foundation. Exactly: accurate accounting is the X factor. That is why we choose Amainvoice. As a long-standing partner, we can say that your business equation only works on Amazon when your accounting is correct.”
Amainvoice is accounting and invoicing software for Amazon sellers. It automates your Amazon accounting — from structuring business transactions to handing data over to your accounting team or tax firm. Amainvoice supports invoice creation and VAT calculations, generates OSS reporting lists, creates Amazon payout settlements including replacement documents, and prepares your financial accounting data for your tax firm in DATEV format.
Amainvoice is designed for Amazon sellers who want to build and scale an Amazon-ready accounting process — especially sellers using FBA, selling internationally, dealing with requirements such as OSS, or handling a growing volume of documents. It is also a good fit if you no longer want to resolve payouts, fees and refunds manually from Amazon reports.
Connect your Seller Central account and Amainvoice will import the relevant business transactions, structure the data and help you pass it on to your accounting team or tax firm. This turns raw Amazon data into a clear, traceable basis for your accounting.
Yes. Amainvoice is designed for international setups and supports you in preparing VAT, OSS, and VAT data. Cross-border movement of goods within the scope of PAN-EU and CEE is also taken into account. Specific registrations, filings, and tax obligations depend on your setup and are handled by you or your tax advisor.
Amainvoice specialises in Amazon processes. Instead of applying only general accounting logic, it is designed around Amazon data, payout settlements and typical seller setups. This means less manual follow-up work and fewer questions for your accounting team.
Amainvoice pricing is based on the number of documents processed per month and follows a tiered model. Prices start at €43 for up to 200 documents and go up to €989 for more than 25,000 documents.
Yes. You can try Amainvoice free for 14 days — no credit card required. Your trial ends automatically.
Your Amainvoice account is usually ready to use very quickly. You connect your Amazon account through a simple integration, and our experts will help you set everything up.
Bei Amazon ist die Buchhaltung deutlich komplexer als bei einem einfachen Online-Shop, weil Amazon deine Umsätze, Gebühren, Erstattungen und Auszahlungen in einem Abrechnungsbericht verrechnet. Für deine Buchhaltung müssen diese Bestandteile jedoch einzeln nachvollziehbar und korrekt für DATEV aufbereitet sein. Amainvoice strukturiert deine Amazon-Daten automatisch und bereitet sie für eine nachvollziehbare Buchhaltung und den DATEV-Export auf.
Wichtig ist:
Wichtig ist, dass du nicht nur den Auszahlungsbetrag verbuchst. Denn neben den Verkaufserlösen müssen auch folgende Transaktionstypen verbucht werden:
Die Buchhaltung kann grundsätzlich auch manuell oder mit einer allgemeinen Buchhaltungssoftware erledigt werden. Bei wachsendem Volumen, mehreren Marktplätzen, PAN-EU oder komplexen Umsatzsteuerfällen steigt der Aufwand und vor allem das Fehlerrisiko, sodass eine spezialisierte Lösung wie Amainvoice notwendig ist. Mit ihr kannst du die Komplexitäten wie die E-Rechnungspflicht, OSS-Meldungen und PAN-EU-Verbringungen fehlerfrei meistern. Eine automatisierte Lösung spart dir außerdem bis zu 80 Prozent der administrativen Zeit. Der finanzielle Vorteil ist klar: Deine gewonnene Freiheit ergibt sich aus der massiven Zeitersparnis, multipliziert mit deinem persönlichen Stundensatz für strategische Arbeit – abzüglich der Softwarekosten.
Ab ca. 500 Transaktionen pro Monat oder dem ersten Schritt in den internationalen Verkauf (PAN-EU) ist eine Amazon Buchhaltungslösung nicht nur sinnvoll, sondern auch notwendig. Denn mit zunehmender Anzahl der Transaktionen steigt der manuelle Aufwand und das Fehlerrisiko.
Auch wenn du jeden Monat Zeit durch die Buchhaltung verlierst, zahlt sich eine spezialisierte Software schnell aus. Als Faustregel: Wenn du mehr als zwei Stunden pro Woche mit Excel-Listen für die Buchhaltung verbringst, lohnt sich ein Buchhaltungsprogramm – auch weil du die gewonnene Zeit für die Skalierung deines Amazon Shops nutzen kannst.