How to Value Bitcoin for Estate Planning: Methods, Records, and IRS Requirements

When a Bitcoin holder dies, the Internal Revenue Service does not ask what you paid for your Bitcoin. It asks what your Bitcoin was worth on the day you died. That distinction — between cost and current value — is the foundation of federal estate tax, and for Bitcoin holders at any significant price level, it creates both a major potential liabBitcoin Irrevocable Life Insurance Trusty and a major planning opportunity that most estates handle inadequately.

This guide explains exactly how Bitcoin is valued for estate planning purposes: the IRS standard, the mechanics of date-of-death pricing, the alternate valuation date election, how the step-up in basis works for heirs, what records your estate needs, and which tools make the documentation manageable. Getting valuation right is not only about paying the correct tax — it is about giving your executor and heirs the foundation they need to administer the estate efficiently without triggering IRS scrutiny or overpaying capital gains when they eventually sell.

Why Valuation Matters: The Estate Tax Is a Fair Market Value Tax

Federal estate tax is imposed on the fair market value of all assets owned by the decedent at death. For most assets, fair market value is intuitive: a publicly traded stock is worth its closing price on the date of death, a bank account is worth its balance, a piece of real estate is worth what a buyer would pay in an arm's-length transaction. Bitcoin follows the same framework — and the IRS has made clear through Notice 2014-21 and subsequent guidance that cryptocurrency is property, subject to fair market value reporting for both income tax and estate tax purposes.

The current federal estate tax exemption is approximately $13.6 million per individual (indexed for inflation), with a 40% tax rate on the taxable estate above that amount. For larger Bitcoin holdings — or for residents of states with lower exemptions, like New York's $7.16 million cliff — accurate valuation is not an academic exercise. A $1 million error in reported fair market value can produce $400,000 in additional federal estate tax.

The Fair Market Value Standard: Willing Buyer, Willing Seller

The IRS defines fair market value as "the price at which the property would change hands between a willing buyer and a willing seller, neither being under any compulsion to buy or to sell and both having reasonable knowledge of relevant facts." This is a hypothetical market standard — not what you paid, not what you hope to receive, not a distressed sale price, but the price that an objective market participant would agree to on the date of death.

For Bitcoin, which trades continuously on multiple liquid exchanges with transparent pricing, this standard is relatively straightforward to apply — more so than for illiquid assets like private business interests or real estate, which require formal appraisal. Bitcoin's fair market value on any given date is generally determinable from exchange data, and the IRS has not issued regulations requiring a formal qualified appraisal for Bitcoin as actively traded property.

Which Exchange Price? The Multi-Exchange Problem

Bitcoin trades on dozens of exchanges simultaneously, with slightly different prices on each due to liquidity differences, trading fees, and arbitrage timing. For estate valuation purposes, the IRS expects the use of a major, liquid exchange — Coinbase, Kraken, Gemini, and CME Bitcoin futures data are all commonly cited. There is no IRS regulation designating a specific exchange as the "official" source, which creates some flexibility and some ambiguity.

The practical approach used by most estate CPAs and tax attorneys is as follows:

1. Identify the exchange(s) where the decedent's Bitcoin was held or primarily traded.
2. For each major exchange used, obtain the date-of-death high and low prices (available from exchange historical data APIs or price history services like CoinGecko or CoinMarketCap).
3. Calculate the mean of high and low on the date of death for each exchange.
4. Use a consistent, documented methodology — and keep records of the data source, the pull date, and the calculation.

If Bitcoin is held in self-custody (hardware wallet, software wallet) and was not purchased on a specific exchange, the estate still requires a fair market value determination. Use Coinbase or another major liquid U.S. exchange as the reference price. Document your choice and rationale in the estate file.

The Alternate Valuation Date

One of the most powerful — and underutilized — tools in Bitcoin estate administration is the alternate valuation date election under IRC §2032. An executor who files an estate tax return (Form 706) may elect to value the entire estate using asset values six months after the date of death rather than the date-of-death values — but only if both of the following conditions are met:

1. The election reduces the gross estate value (i.e., the estate is worth less six months later), AND
2. The election also reduces the estate tax liability (not just the gross estate value).

Both conditions must be satisfied; you cannot elect the alternate valuation date if it increases the estate tax. The election applies to all estate assets — you cannot selectively apply it to Bitcoin while using date-of-death values for real estate. The entire estate is revalued at the alternate date.

For Bitcoin, this election can be profoundly valuable. Bitcoin's annualized volatility regularly exceeds 60%. An estate with $20 million in Bitcoin at the date of death may have Bitcoin worth $12 million six months later — a difference of $8 million in taxable estate and potentially over $3 million in estate tax. The executor must file Form 706 to make the election, and the decision requires careful analysis with estate counsel since it also affects the heirs' cost basis (which is set at the alternate valuation date if the election is made).

The Step-Up in Basis

Under IRC §1014, when a beneficiary inherits property, their cost basis in that property is "stepped up" to the fair market value at the date of the decedent's death (or alternate valuation date, if elected). This is one of the most valuable provisions in the entire tax code — and for Bitcoin held at a very low cost basis, it eliminates what would otherwise be enormous capital gains tax liability.

Consider a simple example: a holder who bought 10 BTC at an average cost of $5,000 per coin (total basis: $50,000) who dies when Bitcoin is worth $200,000 per coin. The estate value is $2,000,000. If the estate is within the federal exemption and no estate tax is owed, the heirs' basis in those 10 BTC is stepped up to $200,000 per coin — $2,000,000 total. The $1,950,000 of unrealized gain that accrued during the decedent's lifetime is permanently forgiven. When the heirs eventually sell at $200,000 or below, they owe no capital gains tax on that appreciation.

The step-up in basis is a powerful argument against certain types of Bitcoin transfers during life (like gifting Bitcoin to heirs directly, which carries over the donor's low basis) and in favor of holding Bitcoin until death for those whose estates are within the estate tax exemption. Your estate plan should explicitly account for this trade-off.

Record-Keeping Requirements

The IRS does not currently have a standardized Bitcoin reporting requirement for estate returns, but estates that hold Bitcoin will typically need to provide their estate CPA with the following documentation:

1. Complete Transaction History by Lot

Every Bitcoin acquisition — by purchase, mining, fork, airdrop, or gift — creates a new tax lot with its own acquisition date and cost basis. The estate return requires a complete accounting of all lots owned at death, their acquisition dates, amounts, and original cost basis per lot. This information is used to report fair market value at death and to establish the step-up in basis for heirs.

2. Exchange Account Records

For all exchange accounts, provide the executor with complete transaction history exports (CSV or PDF) covering all activity. Coinbase, Kraken, Gemini, and other major exchanges provide full transaction history downloads. This is used to confirm balances, acquisition dates, and cost basis for each lot.

3. On-Chain Wallet Records

For self-custodied Bitcoin (hardware wallets, software wallets), the estate will need the wallet's public address or xpub key to confirm the balance at the date of death via blockchain explorer (Mempool.space or Blockstream Explorer). The executor must document the balance in each wallet on the date of death with a timestamp or block height reference.

4. Date-of-Death Price Documentation

Pull and preserve a record of the date-of-death high and low prices from the exchange(s) used. This should be captured promptly — historical price data is available, but contemporaneous documentation reduces audit risk. A simple screenshot of the exchange's historical price page for the date of death, saved to the estate file, is sufficient.

HIFO vs. FIFO: Optimizing the Basis Selection for Heirs

When heirs eventually sell inherited Bitcoin, they will owe capital gains tax on any appreciation above the stepped-up basis. If the heirs hold additional Bitcoin they acquired themselves — not inherited — they may have multiple lots with different cost bases. The accounting method used to determine which lots are sold first matters significantly.

FIFO (First In, First Out) sells the oldest lots first. For Bitcoin accumulated over many years, FIFO often realizes the lowest-basis lots first — producing the highest capital gains.

HIFO (Highest In, First Out) sells the highest-cost-basis lots first — minimizing the gain recognized in each sale. The IRS permits specific identification of which lots are being sold, and HIFO is a valid methodology as long as the lot identification is documented contemporaneously at the time of sale.

For inherited Bitcoin (with a stepped-up basis), the HIFO analysis interacts with any pre-existing Bitcoin the heir holds. Work with a CPA who can model the blended lot structure before the heir begins selling. Cost basis tracking software can automate this analysis, but the accounting method must be consistently applied and disclosed on the tax return.

Documenting Mixed Wallets

A complication arises when Bitcoin is held in a wallet that continues to receive Bitcoin after the date of death — for example, a mining wallet that receives block rewards, or a wallet to which automatic purchases are being made. The estate is taxable on the Bitcoin held at death; post-death Bitcoin received into the same wallet is income to the estate or trust.

The executor must document the wallet balance at the exact date and time of death (using block height and UTC timestamp) and separately track any Bitcoin received after death. Mixing these creates accounting complexity and potential tax errors. If active Bitcoin accumulation is occurring at death, pause it immediately and migrate post-death activity to a new wallet under the estate's control.

Professional Appraisal Requirements

For most estate assets, the IRS requires a "qualified appraisal" by a "qualified appraiser" for assets above certain Bitcoin family office minimum requirementss. Bitcoin, as actively traded property on established exchanges with transparent market pricing, is generally exempt from the qualified appraisal requirement — just as publicly traded stock does not require a formal appraisal, because the market price is its own appraisal.

However, if the estate holds Bitcoin through a non-publicly-traded entity (a private fund, an LLC, or a privately held company that holds Bitcoin on its balance sheet), a formal business valuation may be required to determine the value of the entity interest — even though the underlying Bitcoin is publicly priced. The entity wrapper changes the analysis. Consult estate counsel if Bitcoin is held inside an entity structure.

Cost Basis Tracking Tools

Regardless of which tool you use, begin the cost basis reconstruction process as early as possible in estate administration. Exchange records can take weeks to obtain, on-chain transaction classification requires review, and ambiguous transactions need resolution before the estate return is filed. A competent estate CPA experienced with Bitcoin will need this data organized before they can complete the Form 706.

What to Give Your Estate CPA: A Practical Handoff Checklist

When you engage an estate CPA to prepare the estate tax return, provide the following in a single organized file:

• Complete transaction history export from every exchange account (CSV format preferred)
• List of all hardware wallet public addresses and self-custody wallet balances at date of death
• Blockchain explorer confirmation of each wallet balance at date of death (screenshot with timestamp)
• Date-of-death high and low price from the primary exchange (with source documented)
• Any prior-year Form 8949 showing existing cost basis lots (from income tax returns)
• Records of any Bitcoin received as gifts or inheritance (with donor's basis documentation)
• Mining income records, if applicable (these have a basis equal to fair market value on date of receipt)
• Cost basis software export showing lot-level acquisition history and computed basis

The more organized this handoff, the lower your estate administration costs — and the lower the risk of the estate CPA making errors that trigger IRS examination. Bitcoin estate administration is genuinely more complex than stock portfolio administration; an organized file reduces complexity to a manageable set of calculations.

Estate Tax by Bitcoin Price: Scenario Table

To illustrate how estate tax exposure changes with Bitcoin price — and why valuation methodology matters — the following table shows the estate tax implications for a holder with 10 BTC, 50 BTC, and 200 BTC at different price levels. Assumes a single filer with no other taxable estate assets, using 2026 federal exemption of approximately $15 million.

The table illustrates two critical points: (1) Bitcoin's price appreciation can push a holder above the estate tax threshold without any additional purchasing — simply by the market moving; and (2) the alternate valuation date election becomes enormously valuable in a declining market — a holder who dies when BTC is at $200K and the estate is valued six months later when BTC is at $150K saves approximately $4M in estate tax (on 200 BTC) with a single election.

Frequently Asked Questions