One crucial but often overlooked factor when a crypto investor dies is the step-up in basis.
So what is it?
Your cost basis is generally the price you originally paid for an asset. If you hold that asset over time and it gains value, that growth may be subject to capital gains tax when you sell it.
But here’s the key: If you die while still owning the asset and it passes to an heir, say your son, he generally doesn’t inherit your original cost basis.
Instead, the asset’s basis is generally reset to its fair market value on the date of death.
That can effectively eliminate the capital gain that built up during your lifetime.
For example:
You bought Bitcoin for $20,000.
It’s worth $100,000 when you die.
Your heir generally receives a basis of $100,000.
If they sell it immediately for around $100,000, there may be little or no capital gain to report.
Now imagine the same principle with a family farm, land, a business or a large crypto portfolio that has appreciated substantially over decades.
Without step-up in basis, an heir could potentially inherit the deceased owner’s much lower historical cost basis.
If the asset then had to be sold, the taxable gain could be dramatically larger.
And for sufficiently large estates, estate tax can also become a separate consideration.
For people dying in 2026, the federal estate and gift tax basic exclusion amount is $15 million per individual.
The Biden Administration Proposed Ending Step-Up for Large Gains
This isn’t hypothetical.
In 2021, President Biden’s American Families Plan proposed ending step-up in basis for gains above $1 million per person, or up to $2.5 million per couple when combined with the existing real-estate exclusion.
Under the proposal, appreciated assets above those thresholds could have triggered capital gains taxation rather than allowing all of the pre-death appreciation to disappear through a step-up in basis.
The administration also proposed protections for family-owned businesses and farms transferred to heirs who continued operating them.
The proposal ultimately did not become law.
So today, in 2026, step-up in basis remains part of the U.S. tax code.
And That Matters for Crypto Investors
Crypto investors can build enormous unrealized gains over a lifetime.
Someone who bought Bitcoin at $1,000, $5,000 or $10,000 could eventually be sitting on assets worth many times their original cost.
The difference between inheriting that original basis and receiving a basis based on the asset’s value at death can be enormous.
That is why estate planning isn’t something crypto investors should only start thinking about when they are elderly.
Your cost basis, wallets, records, beneficiaries and estate structure can determine what actually happens to the wealth you spent decades building.