Yes, you have already endured 3 days of crypto estate planning, but it would not be complete without remembering the additional help you can provide your heirs NOW.
The Tax Headache Your Heirs Need You to Solve Now
You’ve done the hard work:
- Day 1: Listed your crypto holdings
- Day 2: Stored seed phrases securely
- Day 3: Integrated everything into your legal documents
But there’s one more critical topic that most crypto estate planning guides skip entirely, probably because it’s boring and nobody likes talking about it:
Taxes.
Specifically: What tax mess are you leaving for your heirs?
If you think, “My heirs can figure out the taxes themselves,” let me introduce you to the ghost of every executor who’s ever tried to reconstruct cost basis for assets the deceased bought across a dozen exchanges over eight years.
Spoiler: It doesn’t go well.
Today we’re tackling:
- Why cost basis is your problem, not your heirs’ problem
- What “stepped-up basis” actually means for crypto
- Tax obligations executors face
- When to involve a crypto-savvy CPA
Fair warning: This isn’t technically difficult. It’s just tedious. But the good news is you can fix 90% of it in an afternoon.
Why Cost Basis Matters (And Why “I’ll Let My Heirs Figure It Out” Is Not a Plan)
When someone inherits traditional financial assets—stocks, bonds, real estate—they typically get what’s called a “stepped-up basis.”
Here’s the short version:
- You bought a stock for $10,000 in 2015
- It’s worth $100,000 when you die in 2026
- Your heir inherits it with a “stepped-up” cost basis of $100,000
- If they immediately sell for $100,000, they owe zero capital gains tax
This is one of the best parts of the U.S. estate tax system. It wipes out unrealized gains.
Does This Apply to Crypto?
Probably yes.
The IRS treats cryptocurrency as property, not currency, which means stepped-up basis should apply.
But here’s the problem: Your heirs need to prove two things:
- What was the value at the date of your death?
- What was your original cost basis? (for estate tax calculations)
And that’s where things fall apart for most crypto estates.
The Real-World Problem
Imagine your executor trying to piece together your crypto tax history:
- Coinbase account from 2017 (partial transaction history)
- Old exchange (FTX, BlockFi, Celsius) – gone, no records
- Hardware wallet purchases from 2019-2025 (receipts… somewhere?)
- DeFi yield farming across six protocols
- NFT purchases on OpenSea
- Staking rewards you never tracked
Your executor’s choices:
- Spend $10,000+ hiring forensic crypto accountants
- Guess at cost basis and hope the IRS doesn’t audit
- Report everything as zero cost basis (maximum tax burden for heirs)
None of these are good.
The correct answer is: You document this now while it’s easy.
Your Cost Basis Homework (Do This Once, Update Annually)
This is tedious, but it’s not complicated.
Step 1: Document All Purchases
For each crypto acquisition, you need:
- Date acquired
- Amount (number of coins/tokens)
- Price paid (in USD)
- Where purchased (exchange, wallet address, etc.)
Example record:
Date: 2021-03-15
Asset: 0.5 BTC
Cost: $29,500 ($59,000/BTC)
Source: Coinbase purchase
Transaction ID: abc123...Step 2: Use Tools to Help
You don’t have to do this by hand.
Crypto Tax Software:
- CoinTracker (connects to exchanges, calculates automatically)
- CoinLedger (formerly CryptoTrader.Tax)
- Koinly
- TokenTax
These tools:
- Import transaction history from major exchanges
- Calculate cost basis using FIFO, LIFO, or Specific ID
- Generate tax reports
- Export records for estate purposes
Cost: $50-$300/year depending on transaction volume
Worth it? Absolutely, especially if you have >50 transactions.
Step 3: Export and Save Everything
Once you have your cost basis documented:
- Export the full report (PDF or Excel)
- Save to the same location as your estate documents
- Label it clearly: “Crypto Cost Basis & Transaction History”
- Update annually (same time you review your estate plan)
Your executor will thank you profusely.
What About Staking Rewards, DeFi Yield, and Airdrops?
These are taxable income when received, which complicates things.
The Rules (According to IRS):
- Staking rewards: Taxable as ordinary income at fair market value when received
- DeFi yield: Same as staking—ordinary income
- Airdrops: Taxable income if you have control over them
- Hard forks: Taxable income when you receive new tokens
What This Means for Your Records:
You need to document not just purchases, but also:
- When you received yield/rewards
- Fair market value at time of receipt
- The protocol/platform source
Good news: Most crypto tax software tracks this automatically if you connect your wallets.
Better news: Your heirs get a stepped-up basis on these too at your death.
Stepped-Up Basis at Death: The Process
Here’s what happens when you die with crypto:
1. Executor Must Determine Date-of-Death Value
This is straightforward for exchange-held crypto:
- Coinbase balance on date of death: $X
- Easy to document
This is harder for self-custodied assets:
- BTC in hardware wallet: What was the price on date of death?
- ETH staked on Lido: What was ETH price + staking value?
- NFTs: Might need professional appraisal
Best Practice:
In your estate documents, specify a valuation method. For example:
“For cryptocurrency holdings, fair market value shall be determined using the average of closing prices from Coinbase, Kraken, and Gemini on the date of death. For NFTs, use floor price from OpenSea or professional appraisal if floor price is not representative.”
2. Heirs Receive Stepped-Up Basis
Once date-of-death value is established, that becomes the heirs’ cost basis.
Example:
- You bought 1 BTC for $10,000 in 2020
- BTC is worth $85,000 when you die in 2026
- Your heir’s cost basis: $85,000
- If heir immediately sells for $85,000: $0 capital gains tax
- If heir sells 6 months later for $100,000: $15,000 capital gain (taxed)
This is a massive benefit and one of the best reasons to actually document everything properly.
What Your Executor Needs to Know About Taxes
When you die, your executor has tax filing responsibilities.
Required Tax Filings
1. Final Individual Tax Return (Form 1040)
- Reports your income up to date of death
- Includes crypto income from that year (staking, sales, etc.)
- Due: April 15 of the year after death
2. Estate Tax Return (Form 706) – Only if estate > $13.61M (2024 threshold)
- Must value ALL assets including crypto
- Establishes cost basis for heirs
- Complex; hire a CPA
3. Fiduciary Income Tax Return (Form 1041) – If estate generates income
- Rare for crypto estates unless assets are held long-term in estate
- Talk to CPA if this applies
What Your Executor Needs from You
Minimum Documentation:
- Crypto inventory (what you own, where it is)
- Cost basis records (purchase history)
- Date-of-death valuation method (written in estate docs)
- Exchange account access (for transaction history)
- Tax preparer contact info (your current CPA or recommendations)
Without this information, your executor will likely pay someone $5,000-$20,000 to reconstruct it.
When to Involve a CPA
Not every estate needs a CPA. But you should involve one if:
Definitely Involve a CPA:
- Estate value > $500,000 total (or approaching estate tax threshold)
- Complex DeFi positions (yield farming, liquidity pools, derivatives)
- International exchange accounts
- Crypto IRAs or retirement accounts
- Business ownership involving crypto
- Any questions about tax reporting
Probably Fine Without:
- Simple estate, modest crypto holdings
- All assets on mainstream U.S. exchanges
- Good cost basis records already exist
- Executor is comfortable with tax software
Finding a Crypto-Aware CPA:
Look for CPAs who:
- List “cryptocurrency” or “digital assets” as a specialty
- Are familiar with IRS Notice 2014-21 and Rev. Rul. 2023-14
- Use crypto tax software themselves
- Have done crypto estate tax returns before
Cost: Expect $2,000-$10,000 for estate tax work with crypto, depending on complexity.
Common Tax Mistakes to Avoid
Mistake 1: “The IRS Doesn’t Know About Crypto”
Wrong. The IRS requires brokers and exchanges to report transactions. Coinbase, Kraken, etc. send Form 1099-B. If you sold crypto, the IRS knows.
Mistake 2: Reporting Everything as Zero Cost Basis
Some executors, unable to find purchase records, report all inherited crypto as zero cost basis.
Result: Heir pays maximum possible capital gains tax.
Solution: Make even rough documentation (emails, screenshots) rather than nothing.
Mistake 3: Not Valuing Properly at Death
Crypto prices can swing wildly. If you use the wrong date or method, heirs could pay more tax than necessary.
Example:
- Death occurs January 15, 2026
- Executor values crypto using price from January 30, 2026 (two weeks later)
- Bitcoin dropped $5,000 in that time
- Heirs now have lower cost basis = more tax when they sell
Solution: Specify valuation date and method in estate documents.
Mistake 4: Forgetting About DeFi Positions
Your executor might find your hardware wallet but not realize you have $50K earning yield on Aave.
Solution: Document ALL holdings, including DeFi, in your inventory.
Your Tax Planning Action Items
If you do nothing else today, do this:
⏰ This Week
- Create or locate your cost basis records
- Use crypto tax software if you haven’t already
- Export complete transaction history from all exchanges
- Save records with your estate documents
- Label: “Crypto Cost Basis & Tax Records”
- Store with will, trust, inventory
- Add a sentence to your estate letter
- Example: “My cryptocurrency cost basis and transaction history are documented in [location]. This will be needed for estate tax purposes and to establish my heirs’ stepped-up basis.”
📅 Annually (Same Time as Estate Plan Review)
- Update cost basis records
- Re-run reports from tax software
- Add any new acquisitions
- Export and save updated reports
- Review with CPA if needed
- If holdings grow substantially
- If you add complex positions
🎯 Before You Die (Obviously)
- Tell your executor where tax records are located
- Provide CPA contact information
- Document your preferred valuation method
The Bottom Line
Tax planning for crypto estates is boring.
It’s not intellectually challenging. It’s not technically complex.
But it’s essential, because the alternative is:
- Your executor spending months reconstructing records
- Paying $10,000+ to forensic accountants
- Your heirs paying more capital gains tax than necessary
- Potential IRS audits and penalties
All of this is avoidable if you spend one afternoon documenting your cost basis and one hour per year maintaining the records.
Think of it this way: Every hour you spend now saves your heirs 10 hours later.
And as a bonus, having good tax records makes your own tax filing easier while you’re alive.
Tomorrow, in our bonus section, we’ll cover some advanced topics: multi-signature wallets, international holdings, and how to handle DeFi positions in your estate plan.
Quick Reference: Tax Documentation Checklist
- [ ] Sign up for crypto tax software (CoinTracker, CoinLedger, etc.)
- [ ] Connect all exchange accounts
- [ ] Import wallet transaction history
- [ ] Export cost basis report
- [ ] Save report with estate documents
- [ ] Document valuation method in estate plan
- [ ] Provide CPA contact info to executor
- [ ] Note location of tax records in estate letter
- [ ] Set annual reminder to update records
- [ ] Review with CPA if holdings exceed $500K
