IRS Form 1099-DA and Your Bitcoin Estate Plan: What Every HNW Holder Needs to Know in 2026

For the first time in Bitcoin's sixteen-year history, the IRS has a standardized reporting mechanism for cryptocurrency transactions. Form 1099-DA — "Digital Asset Proceeds From Broker Transactions" — went into effect in 2026, requiring centralized exchanges and certain other brokers to report customer sales directly to the IRS. It is, in effect, Bitcoin's version of the 1099-B that stock investors have received for decades.

The tax community has been tracking the 1099-DA rollout primarily as a compliance story: exchanges now report your gross proceeds, the IRS gets a data feed on crypto disposals, and the era of underreporting Bitcoin gains gets significantly harder. That framing is correct but incomplete. For HNW Bitcoin holders, Form 1099-DA has deep implications that go well beyond annual tax returns — it directly affects how you structure your estate plan, how your trust documents Bitcoin, what your trustee is legally required to do, and how you position your holdings to maximize the most valuable estate planning tool in the tax code: the step-up in basis at death.

This article is about those implications. We'll work through what Form 1099-DA actually is, why it matters for Bitcoin estate planning specifically, and the concrete actions you should take now to ensure your plan is current with the new reporting regime.

1. What Is Form 1099-DA?

Form 1099-DA is an information return — the same category of tax document as a W-2 or a 1099-INT — that brokers must issue to customers who sell or otherwise dispose of digital assets. "Digital assets" under the IRS definition includes Bitcoin, other cryptocurrencies, and certain NFTs. The broker — typically a centralized exchange like Coinbase, Kraken, or Gemini — issues the form to both the customer and the IRS, documenting the transaction so the agency can cross-reference it against the customer's tax return.

The form captures, at minimum:

• Gross proceeds — the total sale price of the digital asset
• Sale date — when the disposal occurred
• Asset description — the type and quantity of digital asset sold
• Cost basis — for "covered" transactions where the broker has the original acquisition data
• Whether the gain is short-term or long-term — based on the holding period

The distinction between "covered" and "noncovered" transactions is significant. A covered transaction is one where the broker has the original cost basis information — typically because the Bitcoin was purchased directly on that exchange. A noncovered transaction is one where the asset was transferred in from elsewhere, and the broker does not have the original acquisition data. For noncovered transactions, the exchange reports gross proceeds but leaves the cost basis blank. The taxpayer must supply it. This is not a technicality — it is a documentation challenge that HNW holders who have moved Bitcoin between wallets and exchanges will face every tax season.

The critical context: the IRS spent years finalizing the regulatory definition of "broker" for digital assets under the Infrastructure Investment and Jobs Act (2021), which first authorized digital asset information reporting. The final rules — and Form 1099-DA itself — represent the end of that process. This is not a pilot program or a proposal. It is the operating standard for 2026 and every year after.

What the IRS Gets — and What It Means for Enforcement

Before 1099-DA, the IRS had no systematic third-party data on most Bitcoin transactions. Holders self-reported (or didn't). Some exchanges voluntarily provided data in response to John Doe summonses, but coverage was fragmented and enforcement was reactive. That regime is over.

Starting with 2026 returns, the IRS receives a structured data feed from every covered broker showing every covered disposal. It can automatically compare that against what taxpayers report on Form 8949 (capital gains). Discrepancies trigger automated notices. Systematic underreporting — which was trivially easy when the IRS had no third-party data — becomes difficult without actively fabricating records that contradict exchange-issued tax documents.

For most honest Bitcoin holders, this doesn't change anything material. If you've been accurately reporting your gains using exchange transaction records, your 1099-DA will essentially confirm what you've already been doing. The adjustment is administrative, not strategic.

For HNW holders with complex histories — multiple exchanges, self-custody migrations, inherited Bitcoin, or Bitcoin held in trusts — the picture is more complicated. The 1099-DA will reflect what the broker knows, which may not match your actual cost basis if you've transferred assets in from outside the exchange. Basis reconciliation becomes a more formal, documented process rather than a spreadsheet exercise.

2. Why Form 1099-DA Matters for Bitcoin Estate Planning

Most of the coverage of 1099-DA frames it as a tax compliance story. That's understandable — the immediate, visible effect is on tax returns. But the estate planning implications run deeper, and they operate across a longer time horizon that matters more for HNW holders thinking about intergenerational wealth.

Here is the core dynamic: estate planning for Bitcoin-wealthy families is fundamentally about basis management. The two most powerful strategies in Bitcoin estate planning — the step-up in basis at death and various lifetime gifting techniques — are both basis strategies. They work by manipulating the cost basis attached to Bitcoin holdings to minimize the capital gains tax ultimately paid when Bitcoin is sold, whether in the holder's lifetime or by their heirs.

Form 1099-DA changes the landscape for basis management in three ways:

First, it formalizes basis tracking. Before 1099-DA, cost basis was largely self-managed. You maintained your records; the exchange maintained theirs; the IRS had no direct visibility. Now, your exchange's basis records are a live IRS data feed. Any discrepancy between what your exchange reports and what you claim on your return is an automatic audit trigger. This raises the stakes for getting basis records right — and right from the beginning.

Second, it creates a paper trail that survives the holder's death. When you die, your executor and estate attorney will be working with whatever records exist. Before 1099-DA, that might have been a combination of exchange CSV exports, hardware wallet logs, and your own notes. Going forward, exchanges will have formal 1099-DA records that become part of the documentary evidence of your estate's Bitcoin history. This is mostly positive — it makes the executor's job easier and reduces the risk of basis being miscalculated. But it also means the IRS will have that same data, and any attempt to inflate the claimed basis won't survive scrutiny against exchange records.

Third, it changes what "good documentation" means for trusts holding Bitcoin. Trusts have always needed to track basis for assets they hold. But the formality of 1099-DA reporting — issued to the trust as a separate tax entity — creates a paper trail that trustees cannot ignore and cannot reconstruct after the fact. A trustee who doesn't maintain current basis records will face a reconciliation problem when the trust eventually disposes of its Bitcoin, and the 1099-DA it receives from the exchange reflects only the proceeds, not the basis the trustee should have been tracking all along.

3. Cost Basis and Step-Up in Basis: The 1099-DA Connection

The step-up in basis is the most valuable tool in the Bitcoin estate planner's toolkit. Under IRC §1014, when a person dies holding an appreciated asset, the heir inherits that asset at its fair market value on the date of death — not the decedent's original purchase price. All the accumulated gain disappears. For a Bitcoin holder who bought at $5,000 and died when the price was $100,000, the heir inherits at $100,000/BTC. If they sell immediately, they pay zero capital gains tax on thirty years of appreciation. This is the foundational reason why the buy-borrow-die strategy has generated so much interest among HNW Bitcoin holders. See our full analysis of capital gains tax strategies for Bitcoin.

Form 1099-DA does not change the step-up rule itself. IRC §1014 is statute; 1099-DA is an information reporting regulation. The step-up survives. What changes is the documentation mechanics that make the step-up work.

The Documentation Problem Before 1099-DA

Before 2026, claiming the step-up in basis worked like this: the executor identified the decedent's Bitcoin holdings, obtained a price valuation as of the date of death, and asserted that stepped-up basis on the estate return (Form 706, if required) and on the heirs' subsequent returns. The exchange had no direct role. The IRS had no third-party data to cross-reference. In practice, basis claims went largely unchallenged unless the estate was audited.

The Documentation Problem After 1099-DA

Now consider what happens when an heir receives Bitcoin from an estate and then sells it through an exchange. The exchange will issue a 1099-DA for the sale. If the exchange's records show the Bitcoin as "noncovered" (i.e., transferred in, with no acquisition data on file), the form will report gross proceeds with basis unknown. The heir must then supply the stepped-up basis on their own return. The IRS has the sale proceeds from the exchange; it will be looking to see that the reported gain matches the stepped-up basis the heir claims.

This means the heir needs contemporaneous documentation of the date-of-death valuation that establishes the stepped-up basis. Not a memory. Not a spreadsheet reconstructed after the fact. A documented, dated valuation — ideally obtained from a qualified appraiser or based on exchange price data as of the date of death — that can be produced if the IRS asks. This documentation standard was always technically required. In practice, it was rarely enforced because the IRS had no way to identify cases where the stepped-up basis was being overstated. That's changing.

How to Establish and Protect the Step-Up Basis in the 1099-DA Era

The mechanics of protecting the step-up under 1099-DA are straightforward but require action before the holder's death — not after:

• Obtain a dated price quote as of the date of death. For Bitcoin held at an exchange, this means capturing the exchange's price at the moment of death (or the IRS-accepted method of using the average of the high and low trading prices on the date of death). Document this and retain it as part of the estate file.
• Update the exchange's basis records after transfer. When the executor or trustee transfers Bitcoin from the decedent's exchange account to an estate or trust account, the new account should be opened with the stepped-up basis documented. If the exchange supports manual basis entry, enter the stepped-up basis. If it does not, maintain an external basis ledger that tracks the stepped-up cost basis separately from whatever the exchange records show.
• File Form 8971 if required. For taxable estates that file Form 706, Form 8971 (Information Regarding Beneficiaries Acquiring Property from a Decedent) is required. This form reports the estate tax value of assets transferred to beneficiaries — and under the basis consistency rules of IRC §1014(f), heirs cannot claim a stepped-up basis that exceeds the estate tax value reported on 8971. For large Bitcoin estates, the 8971 filing and the documented stepped-up basis must be internally consistent.
• Communicate the stepped-up basis to each beneficiary in writing. If Bitcoin is distributed to multiple heirs, each heir needs a written record of the basis allocated to their share. This written basis record becomes the documentation they will need when they eventually sell and their exchange reports the proceeds on a 1099-DA with basis unknown.

4. Trusts Holding Bitcoin: New Reporting Obligations

Trusts are the workhorse of Bitcoin estate planning. A well-structured trust can hold Bitcoin across multiple generations, provide professional management, protect assets from creditors, and allow the grantor to retain control during their lifetime while ensuring a clear succession path after death. But trusts holding Bitcoin face a specific set of challenges under 1099-DA that are distinct from what individual holders face. The trustee's fiduciary duty extends explicitly to these obligations.

Grantor Trusts: The Simplest Case

A grantor trust — technically, any trust where the grantor retains sufficient control that the IRS ignores the trust as a separate tax entity — is the simplest case for 1099-DA purposes. For income tax reporting, the grantor is treated as if they own the assets directly. The 1099-DA issued to the trust flows through to the grantor's personal return (Form 1040). Gains and losses are the grantor's personal gains and losses.

This is how most revocable living trusts work during the grantor's lifetime. The grantor retains control; the IRS treats the trust as a pass-through. From a 1099-DA perspective, the exchange either issues the form in the grantor's name/SSN or in the trust's name with the grantor's SSN attached. As long as the tax reporting flows to the grantor's return, the mechanics work the same as individual Bitcoin ownership.

The critical transition point is death. When the grantor dies, the revocable living trust becomes irrevocable. The grantor trust status ends. The trust is now its own tax entity — a non-grantor trust — responsible for filing its own return (Form 1041) and receiving its own 1099-DAs going forward. The trustee must:

1. Immediately notify the exchange of the grantor's death and update the account to reflect the trust's EIN as the tax reporting entity
2. Establish the stepped-up basis for all Bitcoin held in the trust as of the date of death
3. Update the exchange's basis records accordingly, or maintain a separate basis ledger
4. File Form 1041 for the trust's tax year covering the date of death and each subsequent year the trust holds Bitcoin

Trustees who don't act immediately risk creating a documentary mess: the exchange may continue issuing 1099-DAs under the grantor's SSN, the trust may be filing 1041s with incorrect basis, and the IRS will have inconsistent records that require manual reconciliation. Do this cleanly and contemporaneously.

Non-Grantor Trusts: More Complex, More Opportunity

Non-grantor trusts — irrevocable trusts where the grantor does not retain sufficient control to trigger grantor trust status — are separate tax entities from the moment they are created. They file their own Form 1041 returns. They receive 1099-DAs in the trust's name. Any Bitcoin sales within the trust generate trust-level capital gains, taxed at the trust's rates (which reach the top federal rate of 37% at very low income thresholds — currently around $15,000 of taxable income).

The estate planning tradeoff with non-grantor trusts is well understood: you trade grantor-level tax treatment for estate exclusion. Bitcoin held in a properly structured irrevocable non-grantor trust is typically outside the grantor's taxable estate. That's the goal for high-value Bitcoin positions where estate tax exposure is a real concern. The cost is that the trust pays its own taxes — often at higher effective rates than the grantor would.

Under 1099-DA, non-grantor trusts holding Bitcoin face the full suite of reporting obligations as separate taxpayers:

• The exchange must have the trust's EIN on file and must issue 1099-DAs to the trust
• The trustee must file Form 1041 annually, reporting all 1099-DA-documented gains and losses
• If the trust distributes Bitcoin to beneficiaries, those distributions may generate trust-level gain and require basis allocation and documentation for each beneficiary
• The trustee carries a fiduciary duty to maintain accurate basis records — failure to do so could constitute a breach of fiduciary duty if it results in excess taxes being paid by the trust or its beneficiaries

The Trustee's New Fiduciary Duty Around Basis Records

Trustees have always had a fiduciary duty to maintain accurate records of trust assets. Under 1099-DA, that duty becomes more specific and more consequential. The trustee must now ensure that the trust's Bitcoin basis is accurately documented and reconciled with exchange records — because when the trust eventually sells Bitcoin and receives a 1099-DA, the basis the trustee reports on the trust's return must be supportable against the proceeds the exchange has already reported to the IRS.

A trustee who allows basis records to lapse — who cannot document when Bitcoin was acquired, at what price, whether it was received as a contribution or purchased, or what stepped-up basis was established at the grantor's death — faces both a tax problem (excess gain reported because basis can't be substantiated) and a potential fiduciary liability problem (the trust's beneficiaries may have grounds to challenge the trustee's administration). In the 1099-DA era, "I didn't keep good records" is not a defense — it is evidence of a breach.

5. Five Estate Planning Actions to Take Now Because of Form 1099-DA

Understanding the theory matters less than executing on the concrete actions that protect your position. Here are the five specific steps HNW Bitcoin holders should take in 2026, in order of urgency.

6. What to Ask Your Estate Attorney or CPA

Most estate attorneys and CPAs who work with Bitcoin-wealthy families are aware of Form 1099-DA, but the level of sophistication varies. If you haven't had an explicit conversation with your advisors about 1099-DA and how it interacts with your estate plan, initiate it. Here are the questions worth asking, with context for why they matter:

Questions for Your Estate Attorney

1. Does my trust document address basis tracking and 1099-DA reporting obligations for the trustee?

Many trust documents were drafted before crypto was a consideration, and even more recent ones may not specifically address 1099-DA. A trustee's basis documentation duties should be explicit in the trust instrument, not implied. Ask your attorney to review whether the trust's administrative provisions are adequate for a trust holding significant Bitcoin.

2. Is my trust structured as a grantor trust or non-grantor trust, and is that designation still optimal given my estate tax exposure?

The grantor/non-grantor election has both estate tax and income tax consequences. With 1099-DA creating a formal paper trail of trust-level capital gains, the income tax consequences are now more visible and more traceable. Make sure you understand which type of trust you have and that the tax reporting configuration at your exchange matches it.

3. Does my estate plan have a written protocol for establishing the stepped-up basis at death?

This is the single most valuable step-in-basis planning question you can ask. The answer should include specifics — not "we'll handle it at the time." If your attorney cannot articulate the specific steps your executor will take to document the stepped-up basis, the plan has a gap that needs filling.

4. Are my estate planning documents (will, trust, POA) consistent with each other on the question of who has authority to manage Bitcoin accounts at exchanges?

Exchanges require specific documentation to allow a successor trustee or executor to take over an account. Many estate plans are not specific enough about this, leading to delays and complications. Ask your attorney to confirm that the authority structure in your documents is clear enough to satisfy an exchange's institutional account policies.

Questions for Your CPA

5. What does my current Bitcoin basis documentation look like, and how does it hold up against exchange 1099-DA records?

Your CPA should be able to reconcile your internal basis records against the exchange's records now — before the IRS has a 1099-DA on file. If there are discrepancies, the time to resolve them is before returns are filed, not after an IRS notice arrives.

6. Have you registered my trust with the exchange and confirmed that 1099-DAs will be issued to the trust's EIN?

This is an operational question, not a tax question, but your CPA should be able to confirm it or help you confirm it with the exchange. If the exchange is issuing 1099-DAs to the wrong taxpayer ID, your tax filings will be mismatched against IRS records.

7. Are there any gifting strategies that become more or less attractive under 1099-DA?

Gifting Bitcoin carries basis transfer implications — the recipient takes the donor's original basis, not the current market value. That means gifting highly appreciated Bitcoin transfers a large embedded gain to the recipient. The stepped-up basis at death eliminates that embedded gain; gifting does not. In the 1099-DA era, where basis documentation is more formal, the tax cost of gifting versus holding-until-death becomes clearer and more quantifiable. Your CPA should be modeling this for your specific position.

8. What are my options for managing capital gains on trust-level Bitcoin sales?

Non-grantor trusts hit the top federal capital gains rate at income well below what individuals pay at that rate. If your trust holds appreciated Bitcoin and needs to rebalance or distribute, the tax cost at the trust level can be significantly higher than if the trust distributed Bitcoin in-kind to beneficiaries who then sold it in their individual capacity. This planning is not trivial — it requires understanding the trust's distribution provisions and the beneficiaries' individual tax situations. Your CPA should be modeling it. See our complete guide to capital gains tax strategies for HNW Bitcoin holders.

7. Frequently Asked Questions

The Bottom Line

Form 1099-DA is the IRS formalizing what Bitcoin holders always knew was coming: that the agency would eventually apply the same third-party reporting infrastructure to crypto that it applies to equities. The era of Bitcoin as a tax-reporting gray zone at the federal level is over.

For HNW Bitcoin holders with thoughtful estate plans, this is manageable — and in some ways welcome. Standardized basis reporting makes it easier for your executor to document the stepped-up basis, easier for your trustee to demonstrate accurate record-keeping, and easier to explain your tax position to the IRS if questions arise. The documentation obligations that 1099-DA formalizes are exactly the documentation obligations you should have been maintaining anyway.

For Bitcoin holders whose plans were assembled before 1099-DA — and whose trust documents, exchange registrations, and basis records don't reflect the new reporting reality — 2026 is the year to fix that. The IRS now has a live data feed on your exchange activity. Your plan needs to be as current as that data.

The core actions are not complicated: audit your basis records, update your trust's exchange registrations, establish a written step-up-in-basis protocol, review your trust structure, and brief your executor. Each of these is a discrete task with a clear owner. Use our estate tax exposure calculator to quantify what's at stake, then work with your estate attorney and CPA to get each piece current. If you want daily visibility into how your Bitcoin holdings intersect with your estate plan as prices move, Estate Watch monitors your exposure and alerts you when it crosses the thresholds that matter.

The underlying Bitcoin estate planning principles have not changed. The step-up in basis is still the most powerful tool you have. Trusts are still the most reliable structure for intergenerational transfer. Documentation is still the difference between a clean administration and an expensive one. What Form 1099-DA changes is the standard of proof — and for holders who plan deliberately, that standard is entirely achievable.