INTEGRATION GUIDE · WHAT WE READ AND WHAT BREAKS

Koinly export: what to export, and what the numbers leave out

Getting your Koinly export history out takes about thirty seconds. Making it produce a defensible tax number takes more, because every platform loses something on the way — and the parts it loses are the parts your tax authority never sees either. Here is exactly what we read from this export, what routinely breaks, and what a free scan shows you before you pay anything.

Run the free scan

Export your Koinly export history

  1. Koinly → Settings → Data → Export
  2. Download the full transaction CSV
  3. Drop it into the free scan — we read it directly

Drop the file straight into the free scan — the format is detected automatically, nothing is uploaded to a third party, and unsaved scans delete themselves after seven days.

What happens when you drop it in

The format is fingerprinted from its own column headers, every row becomes a ledger entry with the source row cited beside it, and lots are rebuilt wallet by wallet. Rows we cannot price defensibly are listed as skipped with the reason — never booked at zero and never averaged away.

What breaks on Koinly export

These are not hypotheticals: each one is a case our own importer handles or deliberately refuses to guess at.

Your history is yours: the file you already built imports here without redoing a single connection.

The file's fiat valuation column becomes the price source, cited as reported-by-your-previous-tool rather than silently adopted as truth.

Anything the previous tool marked as an unresolved or guessed value stays visible as a decision here instead of being quietly inherited.

What the reporting leaves out

Switching tools does not change what the exchange reported about you — it changes whether you can prove the other side of the trade.

Your Basis Passport export means the next switch, in either direction, costs you nothing.

Honest status

This importer is drafted from Koinly export's documented export format and is locked against real exports as customers supply them. Where a row does not match what we expect, the scan says so instead of quietly dropping it.

See what your Koinly export history actually says

Free, about three minutes, no account and no card. You see the corrected numbers and the gaps before deciding whether any of it is worth paying to fix.

Run the free scan

Other platforms

Every guide follows the same shape: the export, what we read, what breaks, what the reporting misses.

Coinbase · Kraken · Binance · Crypto.com · KuCoin · Crypto tax, platform by platform

integrations-2026.1 · reviewed Aug 2026 · ClearBasis is tax software, not a law firm, accounting firm or tax preparer. Platform names are used to describe file formats we read; no affiliation or endorsement is implied.