Tax Report for Crypto Investors in Germany: Content, Preparation, Advice
What is a tax report and what does it contain?
A tax report is a comprehensive document that summarizes all relevant information about an investor's crypto transactions. It contains important details about purchases, sales, exchanges and other activities involving cryptocurrencies. The tax report enables investors to fulfill their tax obligations in Germany and get a clear overview of their profits and losses.
Typical contents of a tax report are the transaction history, which includes a complete listing of all purchases, sales and exchanges. In addition, the gains and losses are calculated in detail, both realized and unrealized gains. Another important aspect is the tax treatment of transactions, which provides information on the correct classification of the various activities.
The tax report also takes into account all fees incurred on purchases or sales to ensure that profits are calculated accurately. The data and the date of the transactions are documented, which is crucial for traceability. Finally, the holding period of each cryptocurrency is also tracked to correctly determine the tax implications. Overall, the tax report is an indispensable tool for crypto investors to create transparency and meet the requirements of the tax authorities.

What data is needed to create a tax report?
Various data sources are required to create a tax report:
- CSV files: These contain exported transaction data from exchanges and wallets, including buy/sell dates, prices in fiat currency, quantities traded and transaction fees. They enable manual checking and adjustment, especially in the case of incomplete or incorrect data records.
- API interfaces: These provide a direct connection to exchanges and wallets for the automated import of real-time and historical transaction data and fee information. They save time, reduce manual input and minimize errors - especially with large amounts of data or frequent transactions.
- Other data sources: These include wallet transactions from private wallets as well as historical price data for unsupported tokens. In addition, your own records or memory logs can also be helpful to capture all relevant information.
Crypto tax tools for tax reports
There are numerous providers that create crypto tax reports. The three most common tools are the following:
- CoinTracking supports the import of transaction data from over 300 exchanges and wallets via API or CSV. It automatically generates tax reports for more than 100 countries and takes profits, losses, mining, staking and lending into account. The tool offers extensive functions for portfolio tracking. Particularly noteworthy is the support of various tax calculation methods such as FIFO (first in first out) and LIFO (last in first out).
- Blockpit enables the automatic import of data from exchanges and wallets as well as the creation of legally compliant tax reports. It takes into account holding periods and various transaction types and is specially designed for European tax regulations.
- Koinly offers an intuitive user interface, automated data import and supports over 300 exchanges and wallets.
Why do private crypto investors need a tax report?
The tax report is essential for private crypto investors in Germany for several reasons and plays a central role in fulfilling compliance obligations.
- Fulfilling tax compliance
The documentation of all crypto transactions is crucial in order to meet the requirements of the German tax authorities. In particular, the guidelines on the taxation of cryptocurrencies codified in the letter by the German Federal Ministry of finance (Bundesfinanzministerium, BMF) dated May 10, 2022, require a detailed record of all relevant financial transactions. A precise tax report helps to meet these compliance requirements and protects against possible legal and tax consequences, such as requests for information or investigation proceedings, which can often be accompanied by additional payments and penalties due to incomplete or incorrect information.
- Income tax return
A tax report facilitates the processing and documentation of the annual income tax return. In Germany, all private crypto investors are required to declare income from cryptocurrency trading, including income from mining, staking, airdrops and many more. The tax report provides a structured overview of all transactions, which supports the complete and correct declaration in the tax return and ensures that no relevant information is overlooked. The tax report as a supplement to the tax return is an essential element in gaining the trust of the tax office.
- Proof of origin and AWV reporting obligation
Another important aspect of the tax report is its function as proof of origin. For larger transactions, banks and financial institutions often require proof of the origin of the funds. A well-documented tax report can, among other things, serve as proof that the funds were acquired legally, which is particularly important for withdrawals of crypto assets (cashing out). It is also important to note that certain transactions must be reported. According to the provisions of the Money Laundering Act, crypto transactions with an equivalent value of over EUR 50,000 must be reported if the counterparty is based abroad.
- Control and overview
The tax report also provides a clear overview of all of an investor's crypto activities. This transparency is not only important for tax treatment, but also for personal financial planning. Investors can better understand their profits and losses and make informed decisions about future investments.
What are the biggest challenges in data preparation?
Preparing the data for the tax report can pose various challenges. One of the biggest difficulties is the completeness of the data, as information is often missing, for example due to insolvent exchanges or insufficient memory on the part of investors. In addition, the uniformity of time zones can lead to confusion, as different time zones have to be taken into account in the transactions. Another problem is the traceability of complex DeFi constellations, especially in the case of transactions with rebasing tokens, which are difficult to track.
The historical reconstruction of crypto assets over longer periods of time requires careful documentation in order to be able to trace the origin and history of the assets. Finally, the completeness of exchange data is a challenge, as each exchange provides different data and often requires manual input to bring all the information together.
Common errors in tax reports
Various sources of error can occur when creating tax reports for cryptocurrencies, which can lead to significant problems. One common challenge is the manual formatting of data records, as formatting errors can make it difficult to import them into the software. In addition, incorrect timestamps can lead to transactions being classified incorrectly, for example if a deposit is incorrectly displayed before a withdrawal.
Another problem is decimal point errors, where small typos can have a major impact on the calculation. The misclassification of scam tokens can also lead to considerable confusion, as these tokens are often incorrectly treated as legitimate assets. The lack of communication between processors can also lead to misunderstandings, especially if there is incomplete customer data that is detected when verifying unknown deposits and withdrawals.
For DeFi transactions where trading takes place within the platform and not on the blockchain, it can be difficult to capture all relevant information. Additionally, missing data from exchanges and access to exchanges that the client does not have access to can further complicate the creation of an accurate tax report.
Finally, fraudulent tokens pose a further risk, as they can not only affect the value of the portfolio, but also impact tax obligations. These sources of error highlight the complexity of data preparation for crypto tax reports and emphasize the need for careful documentation and verification of all relevant transactions.
Our services for German tax reports
WINHELLER has its own experienced team of experts consisting of several blockchain analysts. Our team prepares complex tax reports quickly and accurately, independently of the system, and supports our clients in difficult individual cases. As an exclusive partner of CoinTracking, we naturally also use CoinTracking's full service to ensure that our clients always receive the best possible support.
Your experts for the preparation of a tax report in Germany
Are you interested in creating a tax report? Do you need support with the data preparation of your trades for the tax office? The easiest way to reach us is by e-mail (info@winheller.com) or by phone (+49 69 76 75 77 85 28) or via our contact form for the taxation of cryptocurrencies.
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