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Cryptocurrency Tax Problems: IRS Issues for Bitcoin and Digital Asset Holders

Cryptocurrency taxation is one of the fastest-growing IRS enforcement areas. Many crypto holders are surprised to learn that every trade, sale, and use of crypto is a taxable event — and the IRS receives data from exchanges. Unreported crypto gains are now a primary audit trigger.

How the IRS Taxes Cryptocurrency

The IRS classifies cryptocurrency as property (Notice 2014-21). Every sale, exchange, or use of crypto to purchase goods is a taxable event. Gains are calculated as the difference between your cost basis and the sale price. Short-term gains (held less than one year) are taxed as ordinary income. Long-term gains (held more than one year) qualify for preferential capital gains rates.

The 1099 Question on Your Tax Return

Since 2019, all Form 1040 returns include a question: 'At any time during [year], did you receive, sell, exchange, or otherwise dispose of any financial interest in any virtual currency?' Answering 'No' when you should answer 'Yes' is a misrepresentation to the IRS that can be used against you in an audit or enforcement action.

IRS Exchange Data and John Doe Summonses

The IRS has issued John Doe summonses to Coinbase, Kraken, and other major exchanges requiring disclosure of all US customer transaction data. If you traded on a major exchange, the IRS likely has your transaction history. Exchanges now issue Form 1099-B or 1099-DA (Digital Asset) to users with significant trading activity.

Resolving Unreported Crypto Gains

If you have unreported crypto gains, the best approach is to file accurate amended returns voluntarily before the IRS contacts you. Voluntary disclosure generally results in no criminal referral and a reduction in penalties. You will owe tax plus interest plus accuracy-related penalties (20%) unless reasonable cause can be shown.

Crypto Tax Calculation Challenges

Calculating accurate crypto cost basis is complex — especially for high-volume traders or DeFi participants. Cost basis methods (FIFO, specific identification, LIFO) produce different tax results. Missing records can often be reconstructed from exchange transaction histories. We specialize in crypto tax reconstruction and IRS resolution.

Frequently Asked Questions

Is crypto taxable if I just hold it and do not sell?

No. Simply holding (HODLing) cryptocurrency is not a taxable event. Tax is triggered when you sell, exchange, or use crypto to purchase something.

Is crypto-to-crypto trading taxable?

Yes. Exchanging Bitcoin for Ethereum (or any crypto-to-crypto trade) is a taxable event. You recognize gain or loss based on the fair market value of the crypto received.

What if I lost records of my crypto trades?

Request transaction history from exchanges (available for several years). For decentralized transactions, blockchain explorers can often reconstruct trade history from wallet addresses.

I received crypto as payment for services — is that income?

Yes. Crypto received as compensation is ordinary income at its fair market value on the date received. It is also your cost basis for future capital gains calculations.

What if I lost money on crypto — can I deduct the losses?

Yes. Capital losses on crypto offset capital gains. Losses in excess of gains can offset up to $3,000 of ordinary income per year, with unlimited carryforward to future years.

Does the IRS know about my crypto?

Increasingly yes. Major US exchanges report to the IRS. The IRS's John Doe summons program has expanded dramatically. Assuming the IRS does not know is a risky position.

What can change the answer

Notice type, issue date, filing history, account status, deadlines, and current agency procedures can change the available next step. Bring the complete notice and account records to a qualified review.

Tax rules and collection procedures can change and depend on the account. Federal claims should be checked against current IRS guidance; California claims should be checked against the California Franchise Tax Board. See our editorial methodology for sourcing and update standards.

Results depend on your facts and on IRS or state decisions. Calculus Tax, Inc. is not affiliated with the IRS or any government agency.

When professional help may make sense

Calculus Tax, Inc. can review notices, organize financial information, explain available paths, and communicate with the IRS or California agencies when representation is appropriate. The right next step depends on your facts, deadlines, filing history, and ability to pay.

We are based in Burbank and serve clients in Los Angeles and throughout Los Angeles County. See our local service-area pages for location-specific information.

Ready to Resolve Your Tax Problem?

Calculus Tax, Inc. helps individuals and businesses understand IRS debt, audits, notices, and collection options. We explain the process, review the available paths, and help coordinate next steps.