What the E1 form is — and the supplementary forms
The E1 (Einkommensteuererklärung) is Austria's primary annual income tax return. While many investors assume only traditional wages or business income belong on it, the Federal Tax Office (Finanzamt Österreich, FAO) requires disclosure of all relevant virtual currency activity — including staking rewards, lending interest, token disposals, and other flat-rate-relevant events.
You can begin filing for the previous tax year from mid-February. The deadline depends on how you submit: 30 April if you file on paper, or 30 June if you file electronically through FinanzOnline. Online filing also gives you digital validation, secure submission, and a confirmation receipt.
Depending on your income type, you may need supplementary forms alongside the E1:
Records you need before you start
Before opening the form, gather everything that supports your numbers. The FAO operates on the same principle as most European tax authorities: if you cannot prove it, you cannot claim it. A missing acquisition record does not reduce your liability — it removes your ability to deduct cost basis entirely, leaving you taxed on the full disposal value.
This documentation matters even when you owe nothing. Cost basis established in 2022 on a holding you sell in 2027 must still be traceable five years later — and losses can only be carried forward if they were correctly reported in the year they arose.
Taxable vs. non-taxable events
Not every crypto interaction is a taxable event in Austria. The general principle is simple: active income is taxed when earned; passive holdings are taxed when disposed of. The grey area lies in what counts as "disposal."
The most-misunderstood item is staking and airdrop rewards. Under Austrian rules, receiving them is generally not a taxable event — but their cost basis is typically zero, which means selling or swapping them later triggers tax on the full disposal value, not just the gain.
The 27.5% flat rate and the pre-2021 exemption
For most investors, one number dominates the calculation: 27.5%. This flat rate applies to nearly all return-relevant crypto events in Austria — capital gains on disposals, interest from lending and crowdlending, and most other passive income from digital assets. It is not added to your marginal income tax bracket; it sits as a separate, capped charge on the gain.
For mining and other actively earned digital income, the picture is more nuanced. These activities can generate both components — income at receipt and capital gain on subsequent disposal — and are charged at separate moments in the lifecycle of the asset.
This exemption matters more than it sounds. Before late February 2021, Austria taxed crypto under "speculative" rules: tokens held for 365 days or longer were exempt entirely. The reform that introduced the 27.5% flat rate was not retroactive — it grandfathered all earlier holdings. If you can prove you held a token before that date, you can sell today and owe nothing on the capital gain.
This is one of the strongest arguments for keeping records from years when no tax was owed. Investors who lost their pre-2021 acquisition data often cannot claim the exemption, even when they qualify, because they cannot prove the holding date.
Cost basis: Austria's average cost method
Cost basis is the amount you paid to acquire a token, plus any acquisition fees. Your capital gain is the difference between disposal value and cost basis. Without an accurate basis, gains are either overstated (and overpaid) or understated (and exposed to penalty).
For tokens acquired after 28 February 2021, Austria applies the average cost method. Unlike Ireland's FIFO or Germany's lot-by-lot tracking, Austria pools all units of the same token in a wallet or account and calculates a weighted average acquisition price. Every new purchase recalculates the average; every sale is measured against it.
For staking rewards, lending interest, airdrops, and bounties, the cost basis is typically zero — you did not pay to acquire the tokens. Any later disposal (converting to fiat, swapping for another asset) therefore triggers the 27.5% charge on the full market value at the moment of disposal, not just on the gain.
Worked example
Residency: who pays what, and on which income
Residency for Austrian tax purposes is determined by where you have your permanent home or habitual abode. If you maintain a dwelling in Austria available to you year-round, you are generally a resident. Spending more than 183 days in Austria in a calendar year also establishes residency, even if your permanent home is elsewhere. Short vacations and business trips typically do not count.
Residency status is not a bureaucratic detail — it directly determines the scope of your tax obligation:
The trap is the partial year. Investors who relocate mid-year, or who maintain dwellings in two countries, often misjudge their status — and either fail to report income they owe on, or pay tax twice on the same gain. If your situation is borderline, it is one of the few cases where a one-hour conversation with a Steuerberater is genuinely worth the cost.
Crowdlending interest on the E1
Crowdlending allows multiple investors to pool funds to lend to borrowers — typically SMEs and growth-stage businesses — sharing both risk and return. Unlike traditional bank loans, the platform handles borrower vetting, collateral, and repayment scheduling. For Austrian investors, the tax treatment is straightforward and arguably easier to document than DeFi yield farming.
Under Austrian rules, interest earned from crowdlending is income subject to the 27.5% flat rate, charged at the moment it is received. The principal that comes back at the end of a loan is not a taxable event — it is your capital being returned. Only the interest portion is reportable.
From a filing perspective, crowdlending interest goes on the capital-income section of the E1 (with form E1kv if applicable). Because amounts are received on a defined schedule and recorded by the platform, supporting documentation is rarely the friction point — the work is making sure each interest event is correctly converted to EUR at the moment of receipt and aggregated across the tax year.
Losses, deductions, and key figure 175
Crypto-related losses can reduce your taxable income — but only if you report them in the year they occur and document them correctly. Losses go in key figure (Kennzahl) 175 on the E1. Failing to declare them in the correct year is one of the most common reasons investors lose the ability to carry losses forward.
Allowable deductions include:
Self-employed investors and freelancers can additionally deduct business expenses — home office costs, communications, professional memberships, and training related to their activity. Standard allowances such as the Family Bonus Plus also reduce taxable income for residents.
Common mistakes that trigger audits
Most failed crypto returns fail in the same predictable ways. The FAO has been investing in data-matching tools, and DAC8 cross-border information-sharing means that exchanges and platforms increasingly report directly to tax authorities. The information asymmetry that once protected casual under-reporting is closing.
- Omitting small events — every conversion to fiat, every interest receipt, every sold staking reward is reportable, regardless of size
- Miscalculating cost basis — applying FIFO instead of average cost, or forgetting to include acquisition fees
- Mixing old and new tokens — treating all holdings as exempt, or losing track of which tokens qualify for the pre-2021 exemption
- Omitting foreign income — residents must report worldwide earnings on L1i or L17, including foreign exchange and DeFi activity
- Poor record-keeping — incomplete tracking of wallets, exchanges, staking rewards, and transfers makes claims impossible to substantiate
- Misapplying loss offsets — failing to report losses in their year of occurrence forfeits their carry-forward value
- Confusing exempt and reportable events — internal wallet transfers, retained airdrops, and gifts received are not taxed at receipt; selling them later is
Conclusion
Filing crypto taxes in Austria does not have to be overwhelming, even when income comes from multiple sources — trading, staking, lending, and crowdlending. Once you understand which events are reportable, how cost basis and losses work, and how everything fits onto the E1 and its supplementary forms, the process becomes far more predictable.
Clean records, the correct supplementary form for each income type, and a clear understanding of when the 27.5% flat rate applies are the difference between a smooth filing and an expensive one. As DAC8 closes the information gap between investors and the FAO, the cost of casual under-reporting is rising — and the value of disciplined documentation is rising with it.
