The crypto estate planning problem most holders ignore
Bitcoin has created more silent millionaires than any asset in recent memory. A $10,000 BTC purchase in 2014 is worth roughly $1.3 million today. A $100,000 allocation is worth $13 million. For anyone in that bracket, estate planning is no longer optional. The federal estate tax exemption is $13.61 million per individual in 2026 (scheduled to drop to roughly $7 million in 2026 when the Tax Cuts and Jobs Act sunsets, absent new legislation). Anything above the exemption gets taxed at 40% federal, plus state estate or inheritance tax on top in 18 jurisdictions.
But the most underrated feature of the US estate tax system is the step-up in basis. When you die holding appreciated crypto, your heirs inherit it at its date-of-death fair market value, not your original cost. The gains you never realized are wiped clean from a tax perspective. If you bought 10 BTC at $2,000 each and die when BTC is at $100,000, you had $980,000 of unrealized gains. Your heirs can immediately sell at $100,000 and owe zero capital gains. That’s a $233,240 savings (at the federal 23.8% long-term rate with NIIT). This single mechanism is why wealthy crypto holders often never sell in their lifetime — they’re waiting to transfer the entire basis to the next generation.
How the numbers actually work
Let’s walk through a realistic scenario. Assume a single filer dies with a $15 million total estate, $8 million of which is crypto with a $400,000 cost basis. The federal exemption is $13.61 million. The taxable amount is $15M − $13.61M = $1.39M. Federal tax at 40% is $556,000. If the decedent lived in a state with no estate tax, that’s the total. Heirs receive $14.444M net.
Now factor step-up. The crypto’s $8M value on date of death becomes the new basis. Before the step-up, heirs who sold at $8M would have owed capital gains on $7.6M of appreciation — roughly $1.8M in federal capital gains tax (23.8% combined long-term rate + NIIT). The step-up wipes all of that out. The family’s total tax bill is $556,000 estate tax. Without step-up (hypothetically), it would have been $556,000 estate tax plus $1.8M capital gains when heirs sold = $2.36M total. Step-up saved them $1.8M.
Scale up to a $30M estate with $20M of crypto at a $500,000 basis, single filer, in a state with a 16% estate tax (Washington State). Federal estate tax: ($30M − $13.61M) × 40% = $6.56M. State estate tax: $30M × 16% = $4.8M (actually tiered, but simplified). Total estate tax: $11.36M. But the step-up saved heirs $19.5M × 23.8% = $4.64M in capital gains they no longer owe. Net net, the family has kept ~$18.6M of the $20M crypto allocation after combined tax. Heavy hit, but survivable — and the step-up is the difference between “survivable” and “catastrophic.”
The gifting strategy that can cut estate tax in half
The annual gift tax exclusion is $18,000 per recipient per year (2026 figure) with no lifetime limit. A married couple with three children and six grandchildren can gift $18,000 × 2 donors × 9 recipients = $324,000 per year out of their estate with zero tax consequence. Over 20 years, that’s $6.48 million moved out of the taxable estate into the hands of heirs. At a 40% estate tax rate, that saves $2.59 million.
The catch for crypto specifically: gifted crypto carries your original basis forward. Your heirs don’t get step-up on gifted assets, only inherited assets. So the gifting strategy works best for low-basis crypto you don’t expect heirs to sell soon, or for highly appreciated assets you want to remove from the estate even at the cost of forgoing step-up. For most holders, the right mix is: gift appreciated crypto up to the lifetime exemption threshold ($13.61M per person, $27.22M per couple), hold the rest to death for step-up.
The irrevocable trust play — for sophisticated estates
Large crypto estates (above $20M) frequently use intentionally defective grantor trusts (IDGTs) or grantor retained annuity trusts (GRATs) to move appreciation out of the estate during lifetime. The mechanics are complex (the grantor continues to pay income tax on trust earnings, which itself is a tax-efficient way to further deplete the estate without gift tax), but the headline effect is that appreciation happens inside the trust, outside the taxable estate.
A GRAT specifically, loaded with highly volatile crypto at a low valuation and held through a significant price appreciation, can shift tens of millions of dollars to heirs with zero gift or estate tax consumed. Crypto’s volatility actually makes GRATs more powerful than they are for stable assets. This is why estate attorneys working with crypto millionaires increasingly lead with GRATs for 3-year rolling strategies. Retail holders almost certainly don’t need these structures — they apply to the $20M+ estates.
The crypto-specific estate planning minefield
Crypto presents three unique estate-planning problems that stocks don’t. First, self-custody means the private keys must be findable by executors. Crypto inherited but not accessible is crypto lost forever — and this has happened in real estates worth eight figures. Multi-signature schemes or services like Casa Inheritance exist specifically for this. Second, the IRS takes the position that crypto is property, so valuation for estate tax purposes uses fair market value on the date of death. With volatile assets, an alternate valuation date (6 months after death) is sometimes allowed and can materially reduce the tax bill if prices declined. Third, exchanges sometimes require lengthy probate or court orders to release funds to beneficiaries, which can delay access for 6-18 months.
Practical to-dos. Write a will that specifically addresses crypto holdings. Create a sealed document with key locations, exchange account details, and wallet recovery instructions — stored with an attorney or in a bank safe deposit box. Consider a revocable living trust as the owner of the crypto so it bypasses probate. If estate is above $10M, hire a qualified estate attorney who understands crypto specifically — many don’t.
Related calculators
- Crypto heir & inheritance planning — walk through how to actually transfer keys to beneficiaries.
- Crypto tax calculator — estimate annual capital gains tax on realized crypto.
- Crypto retirement calculator — project how much crypto you need for retirement safe withdrawal.
- Future value calculator — see how current holdings could compound into an estate tax problem.