Frequently Asked Questions about TX-Partner & Crypto Accounting

• 01. Free Documentation Check (30 min) to assess your situation at no cost.
• 02. We review your data and provide a transparent fixed-price quote with no hidden costs.
• 03. Professional crypto accounting, typically 2–6 weeks, 100% remote, read-only access only.
• 04. Delivery of completed documentation, ready for your tax advisor and tax tools.

Our prices are individual and based on the actual effort required: number of transactions, exchanges, on-chain complexity, and years of history to reconstruct. The initial Documentation Check is 100% free.

• Simple cases (up to ~500 transactions, one tool, no DeFi) start at €500
• More complex portfolios with DeFi, multi-chain, or proof-of-funds work are quoted individually
• For tax firms, we offer white-label conditions

After the check, you receive a transparent fixed-price quote with no hidden costs.

No. Never. TX-Partner works exclusively with read-only data: CSV exports, API read-only keys (without withdrawal rights), and public wallet addresses.

We never request passwords, private keys, seed phrases, or account login access. Your crypto assets remain 100% under your control throughout the entire process.

Yes. DeFi documentation is our core specialty. We regularly see portfolios where standard tax tools miscategorize 30–50% of DeFi transactions, particularly DEX swaps, liquidity pool positions, and yield farming rewards.

We analyze smart contract interactions directly on-chain and document every step with the precision needed so your tax report has a clean foundation.

We document all NFT operations (mints, sales, transfers, royalties) and all staking types: native staking, liquid staking, and DeFi yield positions.

Each reward is documented with the correct timestamp and fair market value, so your tax advisor can apply the right categorization on a clean foundation. All services overview.

Blockpit errors , including red warnings, missing transactions, balance mismatches almost always stem from incomplete data imports or missing on-chain information.

In our experience, the most common root causes are missing DeFi transactions, cross-chain transfers documented on only one side, and airdrop entries without cost basis. We analyze your raw data, identify every error source, and prepare the data to be fully Blockpit-compatible with zero unexplained gaps.

We regularly see three categories of CoinTracking errors: negative balances (caused by missing import data from one side of a transfer), duplicate transactions (common with overlapping API and CSV imports), and incorrect categorizations (especially for DeFi swaps and staking rewards).

We clean up the full transaction history and correct technical miscategorizations, so the final report has a clean foundation before you hand data to your tax advisor.

Tax advisors calculate your tax liability. But they need a correct data foundation to do so. When crypto accounting is incomplete, tools like Blockpit and CoinTracking systematically generate tax-disadvantageous results: phantom gains, incorrect cost bases, or missing deductions.

TX-Partner cleans and completes this data layer first, so your advisor can work with accurate numbers and calculate the lowest legally correct tax liability.

Yes. Every documentation we deliver is built to withstand a tax authority review, not just today, but 5 to 7 years from now, which is the standard audit horizon. Should the tax authority question specific transactions, TX-Partner provides detailed on-chain derivations, blockchain explorer references, and written explanations.

With DAC8 reporting mandatory from 01.01.2026, audit-ready documentation is no longer optional. Learn more: Tax Authority Crypto Inquiry.

DAC8 (EU Directive 2023/2226) requires all regulated crypto exchanges to automatically report transaction data to national tax authorities, effective from 01.01.2026. This affects every EU citizen active on regulated exchanges.

Tax authorities will automatically receive your exchange transaction history from 2026. TX-Partner's key insight: exchanges only report their own data. Your DeFi activities, wallet transfers, and DEX transactions remain your responsibility. and any discrepancy between exchange reports and your tax return will trigger automatic inquiries. Clean crypto accounting is now essential.

Everything about DAC8 and crypto accounting.

All regulated crypto exchanges operating in the EU must report under DAC8 from 01.01.2026. This includes Coinbase, Kraken, Bitvavo, Bitpanda, and any exchange licensed to serve EU customers, including international platforms like Binance operating under EU MiCA licenses.

DeFi protocols and decentralized exchanges (DEX) are not covered by DAC8, but their on-chain transactions are publicly visible. Key implication: tax authorities receive CEX data automatically, but not your full crypto history. making complete self-documentation of DeFi and wallet activity critical. More about DAC8.

Typical processing times are 2 to 6 weeks, depending on portfolio complexity.

Simple portfolios, up to 3 exchanges, no DeFi, few years of history can be completed in 1 to 2 weeks. Complex portfolios with DeFi activity, NFTs, multi-chain transactions across 10+ exchanges, or missing historical data require 4 to 6 weeks. In our experience, portfolios active since 2017 or earlier consistently require the full 6 weeks due to legacy CEX data retrieval challenges.

After the free Documentation Check, you receive a realistic time estimate for your specific case.

Missing transactions are one of the most common problems we encounter, particularly for crypto history predating 2019, where exchanges have deleted export data or gone bankrupt (FTX, Celsius, etc.). TX-Partner uses on-chain research and blockchain explorers to reconstruct missing data directly from the ledger.

For CEX data, we request historical exports from exchanges. If specific transactions are genuinely unverifiable, we document this transparently with a written explanation — so your tax advisor can handle the gap correctly. Completeness is a goal, not a prerequisite for getting started. How we reconstruct crypto histories.

Yes. TX-Partner works with historical crypto data going back to 2011, whether from 2014, 2018, or any year since. On-chain data is permanently available as long as the blockchain exists, making wallet-based reconstruction reliable.

The challenge lies with centralized exchange data: exchanges sometimes delete old exports or are no longer accessible (FTX, Celsius, Mt. Gox). In these cases, we use wallet addresses and blockchain explorers to reconstruct the transaction history. We regularly work on retroactive documentation covering 5 to 10 years of crypto history.

Yes. TX-Partner integrates directly into tax advisor workflows. We deliver crypto accounting in a format that Blockpit, CoinTracking, and other tools can process without further cleanup, ready for the advisor to apply the correct tax treatment immediately.

We also offer white-label services for tax firms that want to support crypto clients without building in-house blockchain expertise. All services overview. If you do not yet have a tax advisor, we are happy to recommend specialists from our network.

"Technically correct" means every DeFi transaction is documented exactly as it occurs on the blockchain, not as a tax tool interprets it. In our experience, most tax tools misinterpret DeFi transactions by capturing only the visible token flow and missing internal smart contract events.

Example: a single liquidity pool deposit involves multiple token transfers, an LP token minting event, and potentially a fee deduction, all within one blockchain transaction. Tools that only see the surface-level transfer produce incorrect balances and phantom gains. TX-Partner analyzes smart contract interactions directly and documents every step to prevent this.

Yes. TX-Partner is based in Austria and serves clients across Germany and Austria and broader Europe.

The technical crypto accounting — reconstructing transactions, fixing tool errors, standardizing data — is identical regardless of jurisdiction. Country-specific tax assessment is always handled by your local tax advisor, who receives our documentation as a clean, ready-to-use foundation.

The initial Documentation Check is 100% free and non-binding: a 30-minute call in which we analyze your situation and show you exactly where problems lie. Small corrections can often be resolved directly in this call.

The actual crypto accounting is individually priced based on complexity and effort: number of transactions, exchanges, years of history, and on-chain activity. Simple cases start at €500. More complex portfolios with DeFi, multi-chain, or proof of funds are quoted individually. After the Documentation Check, you receive a transparent fixed-price quote with no hidden costs.