TLTax LotNotes

About this reference

Tax Lot Notes is an independent reference on cryptocurrency cost basis. It explains how the calculation works so that a report you are handed can be checked rather than merely accepted.

What it covers

Cost basis methods and how each matches lots to sales. The transaction records needed to calculate it. Events beyond a simple buy and sell: transfers, staking, airdrops, wrapping and liquidity pools. And how to keep records that still reconcile a year later.

What it deliberately does not do

Why it exists

Most confusion about crypto tax is arithmetic that nobody can verify. A figure arrives with no indication of which method produced it, which fees were counted, or which records were missing. Explaining the mechanics is enough for most people to check it themselves.

Limits

This is general reference material, not tax advice. Rules differ between jurisdictions and change over time, particularly around staking income and DeFi. Take current guidance from a qualified professional before you file.

Corrections are welcome. If something here is wrong or out of date, the contact page has an address.