Bitcoin inheritance tax in Australia sits in a gap that most people discover too late. There is no inheritance tax or estate duty in Australia, which sounds reassuring. The problem is that the Australian Taxation Office still treats inherited Bitcoin as a capital gains tax (CGT) event, and the liability lands squarely on the person who receives the coins, not the estate that passes them on.
How the ATO classifies inherited Bitcoin
The ATO treats Bitcoin as property, not currency. That classification doesn't change when ownership transfers through a deceased estate. What changes is the cost base that the beneficiary inherits, and that single number can make an enormous difference to how much tax is ultimately owed.
When someone dies holding Bitcoin, no CGT event is triggered at death. The estate itself doesn't pay capital gains on the coins. The CGT event happens later, when the beneficiary sells or disposes of the Bitcoin. At that point, the ATO calculates the gain based on the difference between the sale price and the inherited cost base.
The cost base the beneficiary receives depends on when the original holder acquired the coins:
- If the deceased acquired the Bitcoin before 20 September 1985, the coins are treated as pre-CGT assets and the beneficiary pays no capital gains tax on any subsequent gain.
- If the deceased acquired Bitcoin on or after 20 September 1985 and held it for more than 12 months, the beneficiary inherits the original cost base and the 50% CGT discount applies when they sell, provided they also hold for at least 12 months from acquisition by the deceased.
- If the deceased held Bitcoin for less than 12 months, the beneficiary inherits the cost base but does not receive the 50% discount unless they personally hold the coins for 12 months after inheriting them.
Why the cost base matters so much
Consider a straightforward example. A parent bought 2 Bitcoin in 2017 at $4,000 AUD per coin. That's an $8,000 cost base. By the time they pass away in 2025, those coins are worth $220,000. The estate pays no tax. But when the beneficiary sells at $220,000, they face a gain of $212,000. With the 50% discount applied, $106,000 is added to their taxable income for that financial year.
That's a real tax bill. The size of it depends on the beneficiary's marginal rate, which could be anywhere from 19% to 45% plus the Medicare levy.
This is why understanding the deceased's original cost base is critical before selling anything. Executors and beneficiaries should request exchange records, transaction histories, and any records the deceased kept. Without documentation, the ATO may assess the cost base at zero, which creates the maximum possible gain.
Records: the inheritance problem unique to Bitcoin
Physical assets like property have title records. Bank accounts have statements. Bitcoin's records live wherever the original holder kept them: on an exchange, in a wallet, in a spreadsheet on a hard drive. If those records are lost, proving the original cost base becomes genuinely difficult.
McLeod Pacific Investments recommends that all Bitcoin holders maintain a clear, dated transaction log that travels with their estate documents. This isn't just good tax practice. It's essential for anyone who wants to minimise the burden on beneficiaries.
For beneficiaries who've inherited coins but can't locate purchase records, a tax professional can help reconstruct a cost base using blockchain data and historical price sources. It's not always perfect, but it's better than defaulting to zero.
The 12-month holding period and the discount
One of the most misunderstood rules involves the 50% CGT discount. Beneficiaries don't start a fresh 12-month clock from the date they receive the Bitcoin. The ATO counts the deceased's holding period as well. If the deceased held Bitcoin for more than 12 months before passing, the beneficiary qualifies for the discount immediately upon inheriting, even if they sell the same week.
This is actually one of the few areas where inherited Bitcoin behaves more favourably than Bitcoin bought outright. A new investor who buys today and sells in six months pays full CGT. A beneficiary who inherits coins the deceased held for three years can sell immediately and still access the 50% discount. Knowing this can inform the timing of a sale significantly.
Superannuation and Bitcoin: a separate issue
If the deceased held Bitcoin inside a self-managed superannuation fund (SMSF), the tax treatment changes again. Bitcoin held inside an SMSF is subject to the fund's own tax rules rather than personal CGT rules. Beneficiaries receiving a super death benefit may face different tax outcomes depending on whether the payment is classified as a taxed or untaxed element, and whether the recipient is a tax dependant. This is a genuinely complex area. Anyone dealing with inherited SMSF Bitcoin should work with an accountant who specialises in superannuation. McLeod Pacific Investments has covered the broader topic of Bitcoin and superannuation for Australian investors who want context before speaking to an adviser.
Practical steps for beneficiaries
If you've inherited Bitcoin or expect to, the following steps reduce risk and preserve as much value as possible.
Locate the original purchase records before making any decisions. Exchange history, wallet transaction dates, and any written records the deceased kept are all useful. Even partial records help a tax accountant reconstruct a defensible cost base.
Don't sell immediately without understanding the cost base and your marginal tax rate. A sale in a high-income year can push you into a higher bracket. Timing matters.
Check the holding period. If the deceased held the coins for over 12 months, you likely qualify for the 50% discount from day one of your ownership. Confirm this with a tax professional before acting.
Keep your own records from the date of inheritance. The ATO treats the market value of the Bitcoin on the date of death as the beneficiary's cost base in cases where the original records are unavailable. Document that value immediately.
Consider the broader tax picture. Inheriting $200,000 worth of Bitcoin and selling it in one financial year is a very different outcome from spreading disposals across two or three years. A tax professional can model both scenarios quickly. The article on tax on Bitcoin gains in Australia explains the underlying rules in detail and is a useful starting point before you engage an accountant.
Planning ahead: what Bitcoin holders should do now
The best time to sort out Bitcoin inheritance tax is before it becomes someone else's problem. Holders should keep complete purchase records, document wallet access details in a secure estate plan, and communicate the location of those records to their executor.
McLeod Pacific Investments is a Gold Coast-based registered Digital Currency Exchange Provider. McLeod Pacific Investments works with clients who are buying and selling Bitcoin and helps beginners understand the financial and tax context before they make decisions. Reaching out before a sale, whether you're a holder or a beneficiary, costs nothing and often saves a great deal.