Errors and warnings

How do I find missing transactions in CoinTracking?

Last reviewed: August 15, 2026

You do not see missing transactions as their own list. You see the result: negative balance, cost basis zero, exchange balance mismatch. Almost always a purchase year, a closed exchange, a hardware wallet or a chain is missing. The fix is to reload — not another report button.

The facts in brief
Symptom	A negative balance or cost basis 0
Common	Import starts only in the tax year
FIFO	Needs the purchases from prior years

Where does the history typically break?

Import only from 2024 although you bought in 2017. The API only returns a limited window. An old exchange was deleted. A wallet name in CoinTracking does not match the real address. A chain was never connected.

How do you narrow the gap?

Compare the first outflow with the first inflow of the same asset. If the outflow is earlier, something is missing before it. In chain.report CleanUp makes that visible per wallet instead of as a global warning in the PDF.

What if the exchange is gone?

Email exports, tax CSVs, the blockchain of the withdrawal address, dated screenshots. Imperfect evidence is better than cost basis zero. CleanUp tells you which asset and period is missing so you can search with a target.

Sources

CoinTracking Help — negative balances and imbalances

Frequently asked questions

Is it enough to import only the tax year?

No. FIFO and the holding period need prior-year purchases. A single-year CSV creates warnings by design.

Why are on-chain transactions missing even after a wallet import?

Wrong address, only one chain of many, or a contract the importer does not split. Then the movement sits in a smart contract, not in the native history.

Can I book gaps as lost coins?

Only if the coins are really gone. An exchange you forgot to import is not a loss. Falsely declared losses show up in a review.