What Happens If You Do Not Report Crypto on Your Taxes
For most of crypto's history, non reporting was a bet on invisibility. That bet has stopped paying, and the reason is structural rather than rhetorical: the IRS now receives its own copy of the numbers.
What changed
Form 1099-DA, Digital Asset Proceeds From Broker Transactions, is filed by brokers to the IRS as well as to you. Brokers must report gross proceeds for transactions effected on or after 1 January 2025, and basis on certain transactions effected on or after 1 January 2026.
The mechanical consequence matters more than the policy one. Information return matching is automated. When the agency holds a proceeds figure with no corresponding disposal on your return, that is a discrepancy a system can find without anyone deciding to look at you.
The Form 1040 question
Every Form 1040 includes a digital asset question you must answer yes or no. This is not a formality. Answering no on a return where you did have digital asset transactions is a false statement on a signed return, and it is a different kind of problem from an incomplete Schedule D.
The IRS is explicit that the obligation does not depend on receiving a form: if you have digital asset transactions, you must report them whether or not they result in a taxable gain or loss.
What the exposure actually consists of
Understating tax has consequences that stack rather than substitute:
- The tax itself, which does not go away.
- Interest, which runs from the original due date, not from when the problem was found. This is why old years get expensive quietly.
- Penalties, which escalate with the nature of the failure. Accuracy related penalties for negligence or substantial understatement are one tier; civil fraud is another entirely.
- Criminal exposure in cases involving willfulness, which is reserved for deliberate evasion rather than a missed Schedule D but is not theoretical.
The distinction that runs through all of it is between not knowing and knowing. It is the difference between a costly correction and a serious matter, and it is heavily influenced by what you do once you do know.
Doing it before contact is a different transaction
Voluntarily correcting a return before the IRS contacts you and correcting it after are not the same event, and the difference is well understood by everyone who works in this area. Coming forward is the position with options in it. Waiting is the position without.
What that looks like in practice is amending the affected years, reporting the income and disposals, and paying what is owed with interest, rather than starting a conversation about why nothing was filed.
What to do, in order
- Establish the scale before deciding anything. Reconstruct the affected years fully. People consistently assume the number is larger than it turns out to be, because they think in terms of proceeds rather than gains, and because losses they never claimed are sitting unused.
- Find the basis. Missing acquisition cost is what turns a modest gain into a large one. Exchange history, bank records and on-chain data usually recover more than expected.
- Claim the losses. Unreported years frequently contain unclaimed losses. Losses offset gains, and up to 3,000 dollars of net loss reduces ordinary income each year with the rest carried forward.
- Get advice before filing anything. How to come forward, and which route fits your facts, is a professional judgement and depends on whether the failure was inadvertent. Do not choose that route from a web article, including this one.
What does not help
Moving assets to another exchange, to self custody, or offshore does not reduce a liability that has already arisen, and it can convert a reporting failure into something that looks like concealment. So can amending selectively to report only the profitable years.
Our US crypto tax guide covers what a complete return contains, and crypto tax reports covers rebuilding prior years from transaction history.
General information, not tax advice. Rules change and depend on your circumstances. Confirm the current position with the relevant tax authority or a qualified tax professional.
FAQ
Increasingly yes for brokered activity. Form 1099-DA is filed to the IRS as well as to you, with gross proceeds reported for transactions effected on or after 1 January 2025 and basis on certain transactions from 1 January 2026. Information return matching is automated, so a proceeds figure with no corresponding disposal on your return is a discrepancy a system can find.
Answering no on a return where you did have digital asset transactions is a false statement on a signed return, which is a different category of problem from an incomplete Schedule D. The IRS states the reporting obligation applies whether or not the transactions produced a gain or loss.
Voluntarily correcting before the IRS contacts you and correcting after are not the same event. Coming forward is the position that retains options. Which route fits depends on whether the failure was inadvertent, and that is a professional judgement rather than something to decide from an article.
Often not. People estimate from proceeds rather than gains, forget that recovered acquisition costs reduce the gain, and overlook unclaimed losses in the same years. Reconstructing the years fully is the first step precisely because it usually changes the number.