Florian Wimmer has spent nine years building software for a moment that is now close: the day tax authorities can read what you did on a crypto exchange. The CEO and co-founder of Blockpit sat down with me on day two of CONF3RENCE at Kokerei Hansa and put it plainly. Public blockchains were never the blind spot for the tax office. Centralised exchanges were, and a new reporting framework closes that gap.
| What you need to know |
|---|
| 1Florian Wimmer is CEO and co-founder of Blockpit, the Austrian crypto tax software company he started nine years ago; he spoke at CONF3RENCE 2026 about the coming German tax reform. |
| 2Blockpit connects to more than 750 blockchains, exchanges and service providers and builds a gapless transaction history, and exchanges such as Bybit plug it in through an API. |
| 3Under the OECD's Crypto-Asset Reporting Framework, crypto service providers will send customers' identity and transaction data to tax authorities, with the first exchanges due in 2027. |
| 4My read: the cheapest tax advice in crypto is a clean transaction history built before anyone asks for it. |
The full conversation runs just over nine minutes.
The tax office already reads the blockchain
I opened by asking at what level Blockpit makes compliance possible. Wimmer went straight to the problem he set out to solve, and it applies whether a trader made money or lost it.
If you make a profit and also if you make a loss, it is quite important for you to think about the taxation because the tax authorities are going to come for you, even in crypto. They didn’t know a lot in the past, but now it’s getting more and more transparent.
Florian Wimmer, CEO and co-founder of Blockpit
The losses part matters more than most traders think. A loss you can document can offset a gain, and one you cannot document is simply gone. Blockpit’s answer is to pull every transaction into one place, past and future.
We document all of this over 750 integrations with blockchains, exchanges, service providers, giving you your complete gapless transaction history and then calculating your tax liabilities.
Florian Wimmer
I asked him for the elevator pitch on how that works with an exchange like Bybit, which uses Blockpit’s technology for its clients. The connection runs through the same kind of API interface traders already know from trading bots. You connect once, Blockpit reads out the ledger with the whole history, and from then on it keeps pulling in new trades and recalculates in real time.
Then came the part of the conversation that should interest anyone holding coins on an exchange. Tax is a national matter, and in Europe every country runs its own regime. What is being harmonised is the reporting, and he explained why that is the missing piece for tax offices.
Right now, the authorities, they have some experts that look at blockchain data. They can do that. It’s transparent data, right? They just need to know which wallet belongs to which individual. But they have no chance to look at data of centralized service providers.
Florian Wimmer
Read the thread on X
CARF puts a name on every account
The fix is the Crypto-Asset Reporting Framework, the OECD standard that the EU wrote into law through the DAC8 directive. Wimmer told me it went into effect this year, and that next year crypto service providers in some 70 states, including island and overseas territories, report their customers’ KYC and transaction data to the tax authorities. Blockpit’s own guide to CARF and DAC8 spells out the timing: data collection started on 1 January 2026 and the first reports reach national tax offices in 2027.
A trader who has used three exchanges since 2021 and never kept a spreadsheet is in a new position. For the first time, the tax office will know who holds crypto in its country before that person has filed anything. Wimmer’s warning was about sequence.
Once that happens and you didn’t really tend to the topic of taxes and your documentation, you might receive a letter and then it’s a little bit too late.
Florian Wimmer
Rebuilding four years of trades after a tax office has asked is slow and stressful, and exchanges close accounts or delist pairs along the way. Doing it while the data is still easy to export is the cheap version.
Crypto cannot be the loophole
I asked him the question I suspected some viewers would want to ask. Are we drifting away from what crypto was meant to be? He agreed that crypto was built to be pseudonymous, with self-responsibility over your own assets. Then he made the case for the other side, and he did it from the point of view of someone who still likes the original idea.
But you need to pay something to keep those infrastructure alive. And crypto cannot be a way to bypass this, right? You cannot just tax everybody except the guys in crypto. Then this is the loophole and everybody’s gonna use it and then it’s gonna get shut down.
Florian Wimmer
That is the argument I would put to anyone in the industry who treats tax as an attack on crypto. A sector that becomes the obvious escape route invites the harshest possible response. His own summary was to keep the crypto spirit alive while still tending to your responsibilities as a citizen.
When I asked where Blockpit stands between privacy maximalists and everyone else, he split the market in two.
There are those that are never going to be our customers because they say they want to not pay taxes, stay anonymous. And then there are actually those that don’t get into crypto because they’re scared that they cannot adhere to their legal obligations.
Florian Wimmer
The second group is the interesting one. Wimmer described them as people who want to keep a clean record and sleep at night, and who might never have bought into this asset class without a solution for the tax side. For adoption, that group is probably larger than the first.
Audited by the people who receive the reports
I asked how a company like his keeps up when both exchanges and tax laws keep moving, and he described the work as two separate jobs. The first is data aggregation: blockchains and service providers keep launching new products and financial instruments, and every one of them needs a working connection. The second is local tax law, which Blockpit turns into an algorithm per country with the help of licensed CPAs who specialise in crypto and flag regulatory changes before they land.
Blockpit also serves government agencies with its software, and he pointed to what that brings with it.
We get audited by the government agencies on the software which basically is the best proof for what we put out is also getting accepted by the authorities.
Florian Wimmer
The company also sells a DAC8 and CARF reporting product for service providers that now have to file these reports themselves, so it works on both ends of the same data flow.
One sentence from his CONF3RENCE talk
Wimmer was speaking at CONF3RENCE about a big tax reform coming in Germany and several regulatory updates expected in the coming months, with a focus on what they mean in practice and how people can prepare. I asked for the one takeaway from his keynote.
Get your documentation straight before you receive a letter and have to defend yourself. Because if you do it before that, then you’re on the safe side.
Florian Wimmer
The practical question for any reader is simple: if the tax office asked tomorrow for every trade since your first exchange account, how long would it take you to answer? For most people with crypto on more than one platform, the honest answer is weeks. The reporting clock started in January.
Read next
- Where the risk sits: CONF3RENCE 2026 in thirteen interviews, our complete article on the thread connecting all thirteen conversations.
- All our CONF3RENCE 2026 interviews, added as each conversation from Kokerei Hansa goes live.
- CoinJar Europe CEO Niall Carson on the high bar MiCA sets, the exchange side of European compliance.
- Bitkom’s Frederic Meyer on why compliance should not be a mud race, the German policy view.
- Our CONF3RENCE 2026 preview, written before the doors opened.
- Florian Wimmer on Blockpit’s site, X and LinkedIn; Blockpit at blockpit.io.
Recorded at CONF3RENCE 2026, Kokerei Hansa, Dortmund, on 16 September 2026. Quotes are verbatim from the recording with filler removed. Cryptofocus is a media partner of CONF3RENCE. Nothing here is financial advice.
