Everything you need to know about professional crypto documentation and TX-Partner.
TX-Partner is your professional partner for crypto documentation. We resolve error messages in tax tools like Blockpit and CoinTracking, fix incorrect balances and conduct on-chain research to fill data gaps.
We prepare your crypto history so your tax report or proof of funds holds up under scrutiny.
No. We do not provide tax advice in the legal sense. We are a premium documentation service. We prepare the data so that tax advisors and tax tools can work with it error-free. We are happy to recommend specialized crypto tax advisors from our network - check out our B2B & Partner offerings or contact us directly.
TX-Partner is for crypto investors whose crypto documentation is incomplete or faulty. Furthermore, anyone who wants to resolve error messages in crypto tax tools themselves. We particularly often help individuals with extensive on-chain activity, multi-exchange traders (10+ exchanges) and NFT traders.
Crypto documentation is the systematic, complete and technically correct preparation of your crypto history in a crypto tax tool for tax reports, proof of funds, compliance and peace of mind.
TX-Partner documents according to the 4-Pillar Standard: Completeness, Traceability, Technical Accuracy and Long-term Usability.
Our documentation standard is based on four principles, which you can read about in detail on our standard page:
No. That is exactly what the documentation check is for. We analyze your data systematically and show you where and why problems occur, even when your crypto tax tool looks 'actually okay'.
Our prices are individual and based on the actual effort and your situation (number of transactions, complexity, on-chain activity). After the documentation check you receive a transparent offer with no hidden costs.
No. We do not need passwords, keys or account access. We work exclusively with read-only exports (CSV, API read-only, public wallet address)
Yes. DeFi is our specialty. While standard tools often technically miscategorize DEX swaps, liquidity providing or staking, we process these technically correctly on-chain.
We document all NFT operations (mints, sales, transfers) and staking types (native, liquid, DeFi). Rewards are correctly categorized in context. All services overview.
Blockpit errors such as red warnings, missing transactions or balance mismatches usually arise from incomplete data imports or missing on-chain information.
We analyze your raw data, identify error sources (e.g. missing DeFi transactions, chain migrations, airdrop entries) and prepare the data to be Blockpit-compatible.
Typical CoinTracking errors include negative balances, duplicate transactions and incorrect categorizations. These often arise with DeFi swaps, staking rewards or multi-chain activities.
We clean up the crypto documentation, correct categorizations and ensure that CoinTracking processes all operations correctly.
Tax advisors need clean crypto documentation on which a reliable calculation of your tax base can be made. When your crypto documentation is incomplete, crypto tax tools calculate tax-disadvantageous reports. We solve this problem by cleaning up and correcting your crypto documentation, so your tax advisor can calculate the lowest possible correct tax liability on a correct basis.
Yes. Our goal is documentation that holds up under audits even in 5 years. Should the tax authority question specific transactions, we support with detailed explanations and derivations. Learn more: Tax Authority Crypto Inquiry.
DAC8 is an EU directive that from 2026 requires crypto exchanges to automatically report transaction data to tax authorities. This affects all EU citizens active on regulated exchanges.
For you this means: Tax authorities will automatically receive information about your exchange activities from 2026. Clean crypto documentation becomes more important because discrepancies between exchange reports and your tax return can lead to inquiries.
All regulated crypto exchanges in the EU must report transaction data to tax authorities from 2026. This includes all major exchanges like Coinbase, Kraken, Bitvavo, and Bitpanda.
International exchanges like Binance also report when they serve EU customers. DeFi protocols and decentralized exchanges (DEX) are not covered by DAC8, but on-chain transactions are publicly visible.
Important: Exchanges only report their own data. Transfers to wallets, DeFi activities, or transactions on DEXs must be documented by you. More about DAC8 and crypto documentation.
The duration depends heavily on the complexity of your crypto history. Typical processing times are between 2-6 weeks.
Simple cases (few exchanges, no DeFi activities) can be completed in 1-2 weeks. Complex portfolios with DeFi, NFTs, multi-chain activities, or missing data require 4-6 weeks.
After the Documentation Check, you receive a realistic time estimate for your specific case.
Missing transactions are a common problem, especially with older crypto activities. TX-Partner uses on-chain research and blockchain explorers to reconstruct missing data.
For CEX transactions, we contact exchanges for historical data exports. For DeFi transactions, we analyze on-chain data directly. If transactions truly cannot be verified anymore, we document this transparently and suggest solutions. How we reconstruct crypto histories.
Important: Completeness is a goal, not a prerequisite. We work with what is available and document gaps transparently.
Yes. TX-Partner works with historical crypto data – whether from 2014, 2018, or 2024. On-chain data remains permanently available as long as the blockchain exists.
The challenge lies with CEX data: exchanges sometimes delete old exports or are no longer accessible (e.g., FTX, Celsius). In these cases, TX-Partner uses wallet addresses and blockchain explorers to reconstruct transactions.
Especially for the retroactive documentation of prior years, TX-Partner is specialized.
Yes. TX-Partner works closely with crypto tax advisors and delivers the crypto documentation ready for tax advisors to work with directly.
We also offer white-label services for tax firms that want to support their clients on crypto topics without building the technical expertise themselves. All services overview.
If you do not yet have a tax advisor, we are happy to recommend specialized partners from our network.
"Technically correct" means that DeFi transactions are documented exactly as they occur on-chain. Many tax tools misinterpret DeFi transactions because they do not understand the technical details.
Example: A liquidity pool deposit technically consists of multiple token transfers and an LP token receipt. Tax tools often only capture part of it, leading to incorrect balances.
TX-Partner analyzes the smart contract interactions directly and documents every step correctly, so your balance is accurate.
Yes. TX-Partner is based in Austria and works with clients across Europe. The technical crypto documentation is identical across countries.
Differences only lie in tax assessment (e.g., holding periods, allowances), which is handled by your tax advisor. TX-Partner delivers the cleaned crypto documentation that serves as a foundation regardless of jurisdiction.
For country-specific tax questions, TX-Partner recommends specialized tax advisors.
The initial Documentation Check is 100% free and non-binding. We analyze your situation in a 30-minute call and show you where problems lie.
The actual crypto documentation is individually priced based on complexity and effort. Specialized services like proof of funds documentation are quoted separately. After the Documentation Check, you receive a transparent quote with no hidden costs.
Small corrections (e.g., individual missing transactions) can often be resolved directly in the initial consultation.
No, never. We do not need passwords, private keys, seed phrases, or account access to your exchanges or wallets.
We work exclusively with read-only data: CSV exports, API read-only keys (without withdrawal rights), or public wallet addresses. All of this data only allows reading transactions, never access to your funds.
Your crypto assets remain 100% under your control. How TX-Partner works.
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