Tax on Crypto Lending Income in Germany: What to Know in 2026

Why crypto lending income matters for German tax residents

German tax residents must declare all worldwide income, including yield earned through decentralized finance platforms and crypto lending products. The fact that 8lends settles in USDC - a stablecoin pegged to the US dollar - or operates through a Swiss parent company does not exempt the income from German tax. Once you receive interest or it becomes available to withdraw, the Finanzamt considers it taxable.

The core question is not whether you owe tax, but how the income is classified. German tax law treats different types of income under different rules, and the classification affects both the rate you pay and the deductions you can claim. Lending income does not automatically fall into the same category as capital gains from selling Bitcoin or other cryptocurrencies, so you cannot assume the treatment is identical.

How crypto lending income is typically classified

Most tax advisors treat interest from crypto lending platforms as either other income (sonstige Einkuenfte) or, in some cases, business income (Einkuenfte aus Gewerbebetrieb), depending on the scale and frequency of your activity. This classification differs from the private sale rules that apply to buying and holding Bitcoin or Ethereum.

Under the private sale rule, gains from selling a cryptocurrency are tax-free if you held the asset for more than one year. That exemption does not apply to interest you earn by lending the asset. When you lend USDC through 8lends and receive interest, that yield is generally taxable as income in the year you receive it, regardless of how long you held the underlying USDC. The one-year holding period rule protects capital appreciation, not ongoing yield.

If your crypto activity is frequent, systematic, and resembles a business operation - for example, you actively manage multiple lending positions, rebalance regularly, and treat it as a primary income source - the Finanzamt may classify the entire activity as a business. Business income is subject to trade tax (Gewerbesteuer) on top of income tax, and the thresholds and allowances differ from those for other income. A Steuerberater can assess whether your activity crosses that line.

Stablecoins and the USDC complication

8lends settles all loans and interest in USDC, a stablecoin that tracks the US dollar. German tax law does not yet have a unified, published framework for stablecoins specifically, so treatment can vary depending on how the stablecoin is structured and what the investor does with it.

If you hold USDC passively and it remains pegged to one US dollar, you are unlikely to realize a taxable gain or loss on the stablecoin itself - the value does not fluctuate. The interest you earn, however, is a separate income event. That interest is typically valued in EUR at the moment you receive it, using the EUR/USD exchange rate on that date. You must report that EUR-equivalent amount as taxable income.

If you later convert USDC to EUR or another cryptocurrency, that conversion is a separate taxable event. Any difference between the EUR value when you received the USDC and the EUR value when you sold it may be treated as a gain or loss, depending on how your Finanzamt interprets stablecoin transactions. Some advisors treat stablecoins as financial instruments rather than speculative assets, which can shift the tax category and the applicable exemptions. This is an evolving area - verify the current interpretation with a professional before filing.

Record-keeping requirements

German tax authorities expect detailed, transaction-level records for all crypto income. For 8lends specifically, you should keep:

• The date of each interest payment
• The amount in USDC
• The EUR/USD exchange rate on that date
• The EUR-equivalent value of the payment
• Wallet addresses and transaction hashes for each transfer

Most platforms do not automatically provide a year-end statement in EUR. You must reconstruct the EUR value yourself using historical exchange rates from a recognised source such as the European Central Bank or a reputable financial data provider. Save these records for at least ten years - German tax law allows the Finanzamt to audit returns going back a decade in cases involving serious errors or omissions.

If you reinvest interest back into the platform, each reinvestment may also be a taxable event depending on how the transaction is structured. A Steuerberater can clarify whether automatic compounding triggers a tax liability at the point of reinvestment or only when you withdraw funds.

Offsetting losses and cross-platform positions

If you hold positions on multiple crypto platforms - for example, 8lends and a regulated EU marketplace like Mintos - the ability to offset losses from one platform against gains from another depends on how each income stream is classified. German tax law allows loss offsets within certain categories but restricts cross-category offsets in many cases.

If both platforms generate other income, you may be able to net the two. If one platform is classified as business income and the other as capital gains, offsetting is more limited. The rules are complex and fact-specific. A qualified advisor can model different scenarios and advise on the most tax-efficient structure for your portfolio.

Declaring income on your Steuererklaerung

You report crypto lending income on the appropriate section of your annual tax return (Steuererklaerung). For other income, this is typically Anlage SO. If the activity is classified as business income, you may need to file a separate business tax return (Gewerbesteuererklaerung). The Finanzamt may ask for supporting documentation during processing, so have your transaction logs and exchange-rate records ready.

Do not assume that simply holding crypto in a wallet exempts you from reporting. The tax liability arises when you earn or receive income, not when you sell the underlying asset. Even if you never convert USDC to EUR, the interest is taxable in the year you receive it.

Common mistakes to avoid

One frequent error is treating all crypto transactions as private sales subject to the one-year rule. Lending income does not benefit from that exemption. Another mistake is converting USDC values at year-end rather than at the date of each payment - the Finanzamt expects you to use the exchange rate on the date of receipt, not an average or year-end rate.

A third pitfall is failing to declare small amounts. There is no de minimis threshold that automatically exempts you from reporting crypto income. Even a few euros of interest must be declared if the total of all your other income in that category exceeds the annual allowance. The penalties for non-declaration can be severe, especially if the Finanzamt discovers the omission through data-sharing agreements with foreign tax authorities or blockchain analysis.

Why this matters for 8lends specifically

8lends advertises target returns of 18-25% APR, which is materially higher than most regulated EU P2P platforms. Higher returns mean higher taxable income. If you invest EUR 5,000 equivalent in USDC and earn 20% annually, you will receive roughly EUR 1,000 in interest over the year - a sum large enough to attract Finanzamt attention if not declared correctly.

The platform's blockchain settlement may also complicate record-keeping. Every on-chain transaction is visible, which means the Finanzamt can, in theory, trace your activity if it chooses to. Some German tax offices have begun using blockchain analytics tools to identify undeclared crypto income. The transparency of the Base network - the Ethereum layer-2 blockchain that 8lends uses - makes it easier, not harder, for authorities to audit your returns if they suspect non-compliance.