Bitcoin Taxes

Here is the one idea that everything else hangs on: since 2014, the IRS has treated Bitcoin (and all cryptocurrency) as property, not currency. That means your Bitcoin is taxed a lot like stocks, real estate, and other assets - it falls under capital gains tax (the tax on the profit when you sell something for more than you paid).

What this means for you in practice: every time you sell, trade, or spend Bitcoin, you are handing off a piece of property, and you may owe tax on any gain. The reassuring part is what does not count. Just buying Bitcoin and sitting on it is not a taxable event (a moment the IRS counts, like selling or spending). Moving Bitcoin between your own wallets is not one either. But the moment you turn Bitcoin into dollars, swap it for another asset, or spend it on something, the IRS treats that as a taxable disposition - a fancy way of saying you let go of the property and now it is time to settle up.

The math is simpler than it sounds. When you sell Bitcoin, your gain (or loss) is just the difference between what you paid for it (your cost basis, the original price you paid, used to figure your gain) and what you sold it for. Say you bought 0.1 BTC at $30,000 (cost basis: $3,000) and later sold it at $60,000 (proceeds: $6,000) - your capital gain is $3,000. That $3,000 is the part the tax applies to, not the whole $6,000.

How much you owe on that gain comes down to one thing - how long you held the Bitcoin before selling (short-term vs long-term means held under a year vs over a year):

This is the part that trips most people up, so do not worry if it feels fiddly. If you DCA into Bitcoin (buying small amounts regularly over time), every purchase carries its own cost basis. So when you sell, you have to decide which specific coins you are selling - and that choice, called a cost basis method, can noticeably change what you owe. The good news, which we get to below: software handles this for you.

Here is a silver lining for the rough years. If you are holding Bitcoin that is now worth less than you paid, you can sell it to "realize" the loss (turn a paper loss into an official one), and that loss offsets gains from your other sales - shrinking what you owe. You can then rebuy Bitcoin right away, because unlike stocks, the IRS wash sale rule (which normally blocks claiming a loss if you rebuy too soon) does not currently apply to cryptocurrency, though proposed legislation may change this.

Picture it: you bought 0.1 BTC at $60,000 ($6,000 cost basis). It drops to $40,000 ($4,000 market value). You sell, realizing a $2,000 capital loss. Then you immediately rebuy 0.1 BTC at $40,000. You end up holding the same amount of Bitcoin as before, but now you have a $2,000 loss to offset other gains - and your new cost basis is $40,000.

One thing to keep an eye on: Congress has repeatedly proposed extending the wash sale rule to crypto. Watch proposed legislation, because this loophole may not last.

If you have made more than a handful of transactions, tracking cost basis and building Form 8949 by hand is not realistic - and you do not need to. Bitcoin tax software pulls your transaction history in from your exchanges and wallets, works out your gains under the cost basis method you choose, and hands you the exact forms your accountant (or TurboTax) is asking for.

To take the guesswork out of choosing one, we reviewed and scored 6 major tax software tools. CoinLedger (A-) is our top pick for ease of use, Koinly (B+) has the widest exchange coverage, and TaxBit (B-) is free through exchange partnerships. See all tax software reviews.