Dividing crypto assets in a divorce can trigger Capital Gains Tax if not handled carefully. While straightforward assets such as savings, a family home, and pensions tend to follow well-established patterns in a financial settlement, cryptocurrency brings a layer of complexity that many couples and their advisers are only now grappling with. This guide sets out how HMRC treats the transfer, sale, and division of crypto in a divorce, and what you can do to keep the tax consequences under control.
A divorce is classed as a disposal event for many assets, but crypto is especially awkward because it is held in wallets and exchanges that may be in either spouse’s name, split across several platforms, or even forgotten about entirely. The cost basis of each holding — what you originally paid for it — also differs coin by coin and purchase by purchase, which means any transfer or sale requires careful record-keeping if the correct tax is to be reported.
Transfer Between Spouses
| Action | Tax Event |
|---|---|
| Transfer during marriage | No CGT (spouse exemption) |
| Transfer after separation | May be a disposal |
| Transfer as part of court order | Depends on timing |
| Transfer to ex-spouse (final) | Usually a disposal |
The Spouse Exemption
Transfers between spouses who are not separated are treated as no gain/no loss for CGT. The receiving spouse inherits the original cost basis. This means that if one spouse bought 1 Bitcoin for £10,000 and transfers it to the other while they are still married, no tax is due at the transfer and the recipient is deemed to have acquired it for the same £10,000. The practical advantage is that you can rearrange holdings between yourselves without crystallising a gain, which is often useful when you are trying to equalise the overall value of a settlement.
| Scenario | CGT Due |
|---|---|
| Married couple transferring crypto | None |
| Separated couple transferring crypto | Likely CGT |
| Divorced couple transferring crypto | CGT applies |
Timing Matters
| Action | Best Timing |
|---|---|
| Transfer crypto to spouse | Before separation (spouse exemption applies) |
| Sell crypto for cash split | After divorce (each has own allowance) |
| Equalise pensions with crypto | Use cash, not crypto in kind |
Practical Scenarios
The exact tax position depends heavily on the route you choose to divide the assets. The three scenarios below cover the most common approaches, along with their capital gains implications.
Scenario 1: Sell and Split Cash
- Sell crypto
- Pay CGT
- Split remaining cash Tax: CGT on the gain at your rate.
Scenario 2: Transfer Crypto in Kind
- Transfer Bitcoin to ex-spouse
- Tax: CGT on the gain (spouse exemption not available post-divorce)
- Ex-spouse’s cost basis: market value at transfer
Scenario 3: Keep Crypto, Ex Gets Other Assets
- Keep crypto, ex gets the house
- Tax: No CGT (no disposal), but ex may have SDLT on house
Court Orders and Crypto
If a court orders a transfer of crypto:
- The transfer is still a disposal for CGT
- HMRC doesn’t waive tax for court orders
- You may need to sell some crypto to pay the tax
The key point to understand is that a court order does not override tax law. Even where a judge directs that a specific amount of Bitcoin be transferred from one former spouse to the other as part of the financial settlement, HMRC still treats that transfer as a disposal for Capital Gains Tax purposes. In practice this can create a shortfall, because one party may be ordered to hand over tokens worth a certain figure but is then left with a tax bill they did not anticipate. It is common for the transferring spouse to sell a portion of the crypto first to raise the cash needed to cover the resulting CGT liability.
Disclosure Requirements
In divorce proceedings, you must disclose all crypto assets. Hiding crypto is dangerous:
| Risk | Consequence |
|---|---|
| Non-disclosure | Court can overturn settlement |
| Hiding crypto | Potential tax evasion investigation |
| False declaration | Contempt of court |
What to Do
| Step | Action |
|---|---|
| 1 | Value all crypto at separation date |
| 2 | Document cost basis of each holding |
| 3 | Agree who gets what (in value, not tokens) |
| 4 | Consider selling and splitting cash |
| 5 | Get tax advice before transferring |
Bottom Line
Divorce and crypto is complex. Transfers between spouses during marriage are tax-free. Post-separation transfers trigger CGT. Selling and splitting cash is simplest. Disclose all crypto assets. Get professional advice before signing any agreement.
The overarching principle is to value every crypto holding at the separation date, document its original cost basis, and agree on the division in terms of value rather than tokens. Because the spouse exemption disappears once you are separated, the timing of any transfer needs to be planned with care — and because a court order does not protect you from tax, the bill should be accounted for in the settlement itself. For most couples the cleanest route is to sell the crypto, settle the CGT liability, and split the proceeds, while ensuring every asset is fully disclosed throughout the process.