Crypto Record-Keeping: What to Track From Day One
The people who regret this most are the ones who traded actively for a year and kept nothing. Here is the minimum that makes the eventual reckoning survivable.
What counts as an event is broader than people expect
In many jurisdictions, disposing of a crypto asset is taxable — and disposal frequently includes swapping one coin for another, spending crypto on goods, and in some cases earning it as rewards. Selling to cash is only the most obvious case.
This surprises people badly, because a year of active swapping with no cash withdrawal can produce a substantial liability on gains that no longer exist by the time the bill arrives.
The five fields to record
Date and time. Asset and amount. Price in your home currency at the moment of the transaction. Fees. And the counterparty or venue. Record these at the time, because reconstructing them later is far harder than it sounds.
Exchanges delete history, restrict data exports, close accounts and go out of business. Your own record is the only one guaranteed to exist when you need it, and it takes seconds per transaction to maintain.
Making it nearly automatic
Entering cost basis into a portfolio tracker as you go covers most of this passively, and has the side benefit of making your P&L real rather than notional. Export periodically so you are not dependent on any single service continuing to exist.
Rules vary substantially by country and change frequently, so treat this as a prompt to keep records rather than as tax advice. For your actual filing, use a professional who knows your jurisdiction.
Risk, defined properly
The word "risk" does a lot of unexamined work in market commentary. Volatility is how much a price moves. Risk is the probability of a permanent loss of capital — of the reason you owned something ceasing to be true. An asset can be extremely volatile and low-risk for a patient holder, or barely move and be extremely risky if it is quietly failing.
The practical difference: volatility is survived with position sizing, risk is avoided with research. Sizing a position so that a 60% drawdown is uncomfortable rather than ruinous handles volatility. Nothing about sizing protects you from owning something whose thesis has broken.
Which is why both jobs need doing. Size for the volatility, research for the risk, and set an alert at the level where the thesis would be in question — so the review is triggered by the market rather than by whether you happened to be paying attention that week.
Never miss a move in the markets you follow
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Frequently asked questions
Is any of this financial advice?
No. Everything here is general educational information about how markets and tools work, not a recommendation to buy or sell anything. Your circumstances, tax position and risk tolerance are specific to you — for decisions that depend on them, speak to a licensed professional in your jurisdiction.
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