TL;DR:
If you’ve lost access to a wallet or exchange and can’t retrieve transaction data, you’ll need to add "Lost" transactions or make best guesses. CoinTracking can only calculate reports based on the data you provide—so accurate manual entry is key when files are unavailable.
What should I do if an exchange or wallet is no longer accessible?
If an exchange or wallet is no longer available and you don’t have any exported data (CSV/Excel), you’ll need to enter your best estimate using manual transactions.
If no data at all is available:
Use a “Lost” transaction for the full amount of coins sent to or held in that inaccessible location.If some data is missing:
Input “best guess” entries based on what you remember or know. CoinTracking requires transaction data to accurately calculate balances and gains/losses.
What if I sent coins to an inaccessible address?
If you used a withdrawal to send coins to a wallet or exchange you no longer have access to, you can change that withdrawal into a “Lost” transaction. This better reflects the outcome and prevents it from being misinterpreted as still held elsewhere.
What if I know trades occurred, but I lost the records?
Unfortunately, if trades were made on a now-inaccessible platform and no trade data is available, you’ll need to:
Estimate the buy/sell prices and volumes as best as possible
Enter manual trades reflecting what likely occurred
Note that all tax calculations and balances depend on this data, so do your best to reconstruct the history using emails, bank records, or public blockchain entries if available.
Important
CoinTracking cannot reconstruct your missing data for you. Only you can determine and input the most accurate approximation of what happened. Without it, reports and balances will remain incomplete.