Missing History
in Blockpit?
Cost basis of zero because the purchase is missing. TX-Partner brings the history back.
30 minutes · Consultation and quote free
Robert & Johannes · personally review your data
The 3 Most Common Causes of “Missing History”
Blockpit shows the hint when the data before the first recorded inflow is missing for an asset.
Sources never imported
An exchange or wallet was never connected. Blockpit sees the inflow but not where it came from. Often the first exchange or a briefly used account.
API only from the connection date
Exchange APIs deliver only from the connection date and not every transaction type. Bought in 2021, API connected in 2024: the old trades are missing.
Manual entry and auto-correction
Both close the gap with a cost basis of zero. The holding adds up again, the calculation stays wrong.
Which exchanges leave the most gaps
From Robert’s practice: these four platforms stand out when it comes to import gaps.
Limited historical data
API and CSV often return restricted periods only. Older trades and transfers are then missing in Blockpit.
Spot, futures and earn kept apart
In practice, spot, futures, trading bot and earn sit in separate areas. A single API import usually does not cover all of them.
Many products, gaps in the API
In practice the API often does not deliver spot, margin, futures, earn and convert in full. Without a CSV reconciliation, whole product areas are then missing.
In practice only the CSV export
The export is imported manually and is partly incomplete on price and time data for crypto trades.
Cost basis of zero hits every later sale
When the purchase history is missing, Blockpit sets the cost basis to zero. The full proceeds become a gain, even when none was made.
The proceeds become the gain
A sale without a matching purchase counts as a gain in full. That scales into five figures quickly.
The holding period is no longer evidenced
The acquisition date disappears with the cost basis. The 12-month holding period can then not be derived from the data.
The gap travels
An inflow does not create a cost basis, it inherits it from the withdrawal before. A missing origin therefore runs through every transfer.
The silent case
The auto-correction balances the holding, the report looks clean. The hint stays, and so do the fictitious gains.
Sources first, then the cost basis.
Sources listed in full
Every exchange, wallet and chain ever used goes on the list. Typically forgotten: the first exchange, intermediate exchanges and hardware wallets.
Data recovered
CSV exports, the Article 15 GDPR data request and on-chain data from the explorer, in that order.
Cost basis established
Entries with a cost basis of zero get replaced by real transactions. After that TX-Partner triggers the recalculation.
Close missing historyclose.for good.
30 minutes that make the difference.
Book a consultation 30 minutes · Consultation and quote freeIf we are not the right fit for your case, we will say so in the call.
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To the overview