When Do Crypto Exchanges Start Reporting Cost Basis to the IRS?
Tax reporting for crypto brokers hasn’t switched on all at once. It’s rolling out in phases, and knowing which phase applies in a given year changes what the IRS can already see.
The short answer
New broker reporting rules require crypto exchanges to report transaction proceeds first, with cost basis reporting phased in afterward. Until basis reporting is fully in effect, a broker may report how much a sale brought in without reporting what was originally paid for that asset, meaning the IRS receives partial information while the taxpayer remains responsible for reporting the full, accurate gain or loss. Because rules in this area continue to change and phase-in dates depend on specific circumstances, checking the current requirements for a given tax year is the only reliable way to know exactly what’s being reported.
Why the rollout happens in stages
Building the infrastructure to track cost basis accurately is a bigger technical lift than reporting gross proceeds. A sale’s proceeds are simple to observe: it’s the amount received when an asset moves off the platform. Cost basis is harder, especially when assets were bought over time, moved between platforms, or acquired through means other than a simple purchase. Phasing in the requirement gives brokers time to build systems capable of tracking acquisition costs, especially for assets that arrived on the platform without a clear purchase record attached.
What this means for a taxpayer’s own responsibility
- Proceeds reporting alone doesn’t establish gain or loss. Without matching basis information, a form showing only proceeds can’t tell the IRS whether a sale was profitable, which is part of why tracking crypto cost basis is difficult in the first place.
- The taxpayer’s obligation doesn’t change based on what’s reported. Whether or not a broker has started reporting basis, the underlying requirement to report accurate gains and losses on a return applies the same way.
- Assets moved between platforms complicate the picture. If crypto is transferred from one exchange or a hardware wallet to another before being sold, the receiving platform may not have the original purchase information at all, regardless of how far along basis reporting has progressed.
How this connects to accounting method choices
Once basis information becomes available or is tracked independently, the method used to match which units were sold — such as FIFO accounting — still determines the reported gain or loss, since the same holdings can produce different results depending on which lots are treated as sold first.
What to keep in mind while rules phase in
Because reporting requirements are still being implemented and can vary by broker and by tax year, it’s worth treating any given year’s forms as a partial picture rather than a complete one. Keeping independent records of purchase dates, amounts, and prices remains the most reliable safeguard, since it doesn’t depend on which phase of reporting a particular platform has reached. This is especially relevant to the broader question of how cryptocurrency is taxed, where accurate basis tracking underlies nearly every calculation.
What to weigh
Phased reporting is a transition, not a finished system, and gaps in what’s reported don’t reduce what’s owed or reportable. Anyone with crypto transactions across this period benefits from treating personal recordkeeping as the primary source of truth, with broker forms as a supplement that will only become more complete over time. As always, specific tax positions depend on individual circumstances and current law, so questions about a particular situation are best directed to a tax professional.