How to sketch crypto capital gains (not tax advice)

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Give a simple gains sketch so you see how proceeds minus basis behaves before you export exchange CSVs to real tax software. Use this guide when you want a ballpark gain/loss on a closed lot. Follow the steps below, then open the matching CryptonicTools page. Avoid not a tax engine.

Rough cost-basis versus proceeds math for education — always verify with a tax professional and your jurisdiction’s rules.

By Nadeem Ahmed·Co-founderUpdated 2026-09-09Methodology

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Give a simple gains sketch so you see how proceeds minus basis behaves before you export exchange CSVs to real tax software.

Launch Capital Gains Estimator →

Purpose

Give a simple gains sketch so you see how proceeds minus basis behaves before you export exchange CSVs to real tax software.

When to use it

You want a ballpark gain/loss on a closed lot
You are learning cost-basis vocabulary
You need a disclaimer-heavy napkin calc on mobile
You are not treating this as a filing tool

How to use it

Enter cost basis and proceeds. Use your records for what you paid and what you received.
Review gain or loss. Read the sketch output as educational only.
Check local rules. Holding periods, wash sales, and income vs capital treatment vary by country.
Use proper software. File with tools and advisors that support your jurisdiction.

Benefits

Fast vocabulary for basis vs proceeds
No account upload of full history
Pairs with portfolio cost basis tracking
Explicit non-advice framing

Pitfalls to avoid

Not a tax engine
Ignores lots, fees, airdrops, and income events unless you encode them
Jurisdictions differ wildly
Never file from this alone

Purpose and hard limits

CryptonicTools keeps this helper local and simple on purpose. It is for intuition, not compliance. Pair with the portfolio tracker for living cost basis notes, then move to dedicated tax products.

Frequently asked questions

What will I learn in “How to sketch crypto capital gains (not tax advice)”?+

Rough cost-basis versus proceeds math for education — always verify with a tax professional and your jurisdiction’s rules. You will walk through Enter cost basis and proceeds, Review gain or loss, Check local rules, when the tool helps, and how to avoid common mistakes.

When should I work through “Enter cost basis and proceeds” in this calculator guide?+

Start here when you want a ballpark gain/loss on a closed lot. Begin with “Enter cost basis and proceeds,” then open the free on-site tool so you can practice the same workflow without creating an account.

What is the main payoff of “How to sketch crypto capital gains (not tax advice)” — and the biggest math pitfall?+

Benefit: Fast vocabulary for basis vs proceeds. Pitfall: Not a tax engine. CryptonicTools is informational only — confirm fees and fills on your venue, and read the Methodology page for how rates and formulas work.

Practice in the Capital Gains Estimator — free, no account.

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