How Do Beneficiaries Calculate Cost Basis for Inherited Cryptocurrency?
Inheriting cryptocurrency comes with a tax quirk that surprises a lot of families: the original owner’s purchase price generally stops mattering the moment ownership passes to an heir.
The short answer
Beneficiaries who inherit cryptocurrency generally receive what’s called a stepped-up cost basis — the asset’s cost basis resets to its fair market value on the date of the original owner’s death, rather than carrying over whatever the deceased originally paid. That reset generally reduces or eliminates the taxable gain tied to appreciation that happened before the inheritance, though specific outcomes depend on individual circumstances and current law.
Why the step-up rule exists
This isn’t a crypto-specific rule; it’s a long-standing feature of how inherited property is generally taxed, applied here to a digital asset. The logic is that an heir shouldn’t be taxed on appreciation that happened during someone else’s lifetime and ownership. Instead of inheriting the original cost basis along with the asset, the beneficiary’s basis becomes the asset’s value as of the date of death, effectively wiping out the gain that had built up until that point. This is a different treatment than ordinary cost basis tracking for crypto purchased and held directly, which does carry forward from the original purchase price.
How the value gets determined
Because cryptocurrency trades continuously across many venues and prices can vary somewhat between them, establishing the fair market value on a specific date requires picking a consistent, defensible methodology, such as an average price across major markets at a specific time on the date of death. Estates often need to document this valuation carefully, since it becomes the reference point for any future gain or loss the beneficiary eventually realizes.
What this means for gains and losses going forward
- A sale shortly after inheriting. If the beneficiary sells close to the date of death, there may be little or no taxable gain, since the basis and the sale price are likely similar.
- A sale years later. Only appreciation that occurs after the date of death is subject to capital gains treatment; the pre-death appreciation was effectively erased by the step-up.
- A sale at a loss. If the asset’s value has fallen since the date of death, the beneficiary may be able to recognize a capital loss, calculated from the stepped-up basis rather than the original purchase price.
Where the process gets complicated
Establishing a stepped-up basis requires records — knowing exactly what was held, in which wallets or accounts, and its value on a specific date years in the past can be difficult if the deceased didn’t leave clear documentation. This is closely tied to broader estate-planning questions, including whether a power of attorney or estate document explicitly addresses digital assets and how an asset held in a custodial account is handled after the owner’s death, since access to the holdings themselves is a separate problem from calculating their basis.
What this means going forward
A stepped-up basis can meaningfully reduce the tax owed on inherited cryptocurrency by resetting the calculation to the date of death rather than the original purchase. Because valuing crypto accurately on a specific past date and documenting it properly both take real effort, working through this with a tax professional and keeping thorough records tends to matter more here than with many other inherited assets.