The warning is the symptom

Fix tax-tool errors — do not just read the warning

CoinTracking calls them warnings, Blockpit calls them hints. Same thing: missing transactions, negative holdings, cost basis zero or misclassified DeFi. The report still calculates — often with a gain that is too high.

Repair instead of ignore

chain.report is the anti-headache tool. CleanUp walks you through structural errors instead of leaving you with a red list. You connect exchanges and wallets, fix missing prices, balance gaps and misread smart contracts — and only then generate a tax-compliant report using FIFO or LIFO.

The three typical data problems

Missing cost basis

When prices are missing, the tool sets cost basis to zero. Fix that before the report is wrong.

Negative holdings

Negative balances come from incomplete imports. We show the gap and help you reload it.

Misclassified DeFi

DeFi is often imported incorrectly. Classify smart contracts as the transaction really was.

When CoinTracking or Blockpit only show errors

People rarely search for “error” alone. They search for the tool they are stuck in: CoinTracking warnings, missing transactions, Blockpit hints, balance mismatch. The cause is almost always the data — not the tax formula.

CoinTracking errors

Warnings, missing transactions, negative holdings — the three CoinTracking classics and how you close them.

Blockpit errors

Hints, balance mismatch, missing history — Blockpit shows the problem. We walk you through the repair.

What chain.report does differently

Guided CleanUp instead of an endless error list.

Missing historical prices can be added instead of treating the whole coin as cost basis zero.

Incomplete imports show up as a balance gap — including what you still need to reload.

Complex DeFi and smart-contract movements can be classified as they actually happened.

That is what people need when they are stuck in Blockpit, CoinTracking or another tool: not another holding-period explainer, but a report the tax office will accept.

Fix these problems next