Crypto Tax & Portfolio Reconciliation
Litmus Ledger runs your exchange exports through a rigorous validity test. When it fails — and it usually does — we diagnose exactly what's broken and produce auditable corrections you can approve.
The Problem
Exchange exports are incomplete, ambiguous, duplicated, and inconsistent. Every crypto tax tool can surface the resulting errors — mismatched balances, unclassified transactions, negative positions.
None of them tell you why. None of them fix it.
Litmus Ledger turns every reconciliation failure into an actionable diagnosis: what failed, which source rows caused it, what correction is proposed, and what evidence supports it.
$ litmus run --portfolio binance.csv kraken.csv
Parsing 2 sources · 4,831 events
Running reconciliation...
✗ FAIL Completeness
23 orphan events · no backing flows
rows: binance.csv:1204, 1391, 2018...
✗ FAIL Conservation
Σ Δflows ≠ balance delta by −$12,431
likely cause: missing deposit 2023-08-14
✓ PASS Admissibility
✓ PASS Feasibility
→ Running correction pipeline...
The Litmus Test
A portfolio history passes the Litmus Test when it satisfies all four validity criteria. Most portfolios fail at least one. The test tells you exactly which criterion failed — down to the source row.
Every observed balance change must be accounted for. No orphan events. All endogenous flows matched to trades, fees, or deposits.
Assets are not created or destroyed. Balance deltas must match total flow changes. Internal transfers must net to zero.
No negative balances. No positions without collateral. No funding charges on closed positions. Every point in time must be valid.
Every transition must be physically possible. You must send before you receive. You must borrow before you repay.
"Other tools tell users that something is wrong.
Litmus tells them exactly what — and helps them fix it."
Product thesis · Litmus Ledger
How It Works
Drop in CSV exports from any exchange — as many as you want, even overlapping in time. Deduplication is automatic.
Binance · Kraken · Coinbase · +more
We parse, reconcile, and validate your data against the four-criterion test. Failures are mapped to exact source rows with proposed corrections.
Completeness · Conservation · Admissibility · Feasibility
Review the diagnosis, approve proposed corrections, and export clean records with a full audit trail. Hand it off to your tax tool with confidence.
TaxBit · Koinly · Cointracker · +more
Early Access
We're inviting a small group of crypto traders who want to fix their data for good. If your portfolio history is a mess, we want to help.
Closed beta · Free for early users · No credit card