Family Tax · September 30, 2026 · 13 min read · By CryptoTaxCalc Team

My Wife and I Tested the "Marriage Crypto Discount." Here's What's Real in 7 Countries.

Before we filed our first joint return, a friend told us marriage "automatically halves the crypto tax." It does not — except in the specific ways it does. Britain lets a couple spend two allowances, Canada denies your loss if your spouse buys the dip, India quietly moves the income back onto your return, and Australia taxes the transfer itself. This is the honest seven-country map for couples who are staying together.

Image: Illustrative purposes. Rules cited from IRC §1041 and §1091/267, TCGA 1992 s58, §23 EStG and the German Inheritance and Gift Tax Act, ITA 73(1)/74.1, ITAA 1997, Japan's Inheritance Tax Act, and Indian Income Tax Act §56 and §64.

The most common question in married crypto group chats is also the laziest: "Should the coins be in my name or hers?" The answer depends entirely on which country you're sitting in, because governments disagree about what a marriage even is for tax purposes. My wife and I file jointly in the US, where the household is a tax unit. Her sister and husband file separately in London, Berlin and Melbourne alike — the tax office in those countries sees two individuals sharing an address, not one merged taxpayer.

This guide is about ongoing marriage planning — allowances, brackets, transfers and ownership while things are good. If you're reading this because the marriage is ending, the mechanics change (especially the UK's separation windows and Australia's breakdown-only rollover); use the dedicated crypto divorce tax guide instead. And for one-off gifts, the crypto gift tax guide covers the paperwork in detail.

The seven-country map in one table

First question: does your country even see a couple?

Only the United States, of the seven, taxes the household. American spouses can file married-filing-jointly, and the brackets, the standard deduction, the 0% long-term gains zone and the NIIT threshold are all built around two people — roughly double the single figures. In our own joint year, that doubling is the entire reason some of our gains sat in the 0% band instead of the 15% one. Married-filing-separately exists but is almost always worse for crypto: both spouses lose several credits, thresholds halve, and losses stay trapped per person. Even so, run both returns before April — separate filing occasionally helps with income-driven loan plans or when one spouse wants clean separation from the other's older IRS issues.

Everywhere else — the UK, Germany, Canada, Australia, Japan, India — the return belongs to a person. Marriage changes what transfers between you are allowed tax-free, but it doesn't merge the tax bill. Most of the "marriage bonus" in those countries is really an allowance-stacking game.

United Kingdom: the genuine two-allowance country

Britain is where couples get the most reliable planning. Section 58 TCGA treats transfers between spouses and civil partners living together as no-gain/no-loss: I hand my wife coins worth £40,000 that cost me £10,000, and no gain is computed; she inherits my £10,000 base cost and my acquisition date, which matters for the short/long rate distinction elsewhere and for pool sequencing.

She can then sell, and the gain is measured against her annual exempt amount — £3,000 — and taxed at her marginal CGT rate of 18% or 24%. Do this once per year across a couple and £6,000 of gains are free instead of £3,000; route the right assets to the basic-rate spouse and more of the gain is taxed at 18% rather than 24%. HMRC accepts this as normal planning; what fails is a circular arrangement where the coins boomerang back before the year ends with no genuine change in ownership. Keep it real, document the transfer on-chain or on the exchange, and leave it settled. The full UK mechanics are on the UK tax page.

Germany: two cliffs and a generous gift allowance

Two moves work for German couples. First, the €1,000 private-sale Freigrenze is per person, per year, and it's a hard cliff — one spouse at €990 of short-term gains pays nothing, but €1,001 taxes the full amount. Two spouses therefore have €2,000 of combined room if assets are genuinely owned between them. Second, a genuine gift between spouses is not a Veräußerung under §23 at all, and the recipient steps into the giver's acquisition data — cost and purchase date — so a coin that crossed its one-year mark stays exempt in the receiving spouse's hands. Gifts within marriage are protected by a €500,000 spouse allowance under Steuerklasse I (renewable every ten years), which crypto well within normal portfolios won't approach. What doesn't exist is a joint capital-gains return: the optional Zusammenveranlagung helps wages, not the §23 allowance itself.

United States: brackets, gifts, and the spouse in your wash sale

Beyond joint filing, §1041 makes living-spousal transfers non-taxable with carryover basis — useful for repositioning assets before a planned sale, and unlimited in amount when the receiving spouse is a US citizen (non-citizen spouses have a large but capped annual exclusion, around $190,000 in recent indexed figures). But note what §1041 does not do: it does not step basis up to market value. The only free step-up in a marriage comes at the first spouse's death — and in community-property states, under §1014(b)(6), both halves of community property get the step-up, which for appreciated bitcoin held for decades can be the biggest tax event in the marriage. That's the inheritance and estate conversation, and it's worth having at age 50, not 80.

The trap: US attribution rules treat spouses as one person for wash-sale purposes. Direct crypto sits outside Section 1091 today, but H.R. 10357 would extend the rule to digital assets on enactment — and spot bitcoin ETF shares are already covered. "I sell at a loss, my wife buys the same position" is not a workaround; it's the fact pattern the rule exists for. The full status is in the wash-sale guide.

Canada: the rollover is real, the income splitting is not

Canada gives spouses and common-law partners an automatic rollover at cost amount under ITA 73(1), so transferring coins triggers no gain — but it also hands over your cost basis, and the country's anti-splitting rules do most of the work the transfer might have achieved anyway. If you gift or lend assets to your spouse and they invest them, the future property income — and, under 74.1(2), taxable capital gains — attribute back to you. Moving bitcoin to her wallet does not move the gain into her lower bracket. Two of the genuine exceptions: assets bought with the receiving spouse's own money (a real purchase at fair market value, with a documented loan at the CRA prescribed rate), and retirement-room planning — direct coins aren't qualified investments for a TFSA or RRSP, but a bitcoin ETF held in each spouse's tax-free or registered room uses two individual allowances that genuinely exist. Also remember the superficial-loss window catches your spouse's purchases in the 30 days around your loss sale. More on the Canada page.

Australia: fix the ownership before the gain exists

This is the country that surprises British and American expats. There is no general no-gain/no-loss spousal transfer during an ongoing Australian marriage — moving your crypto to your husband is a CGT disposal at market value, with a real gain on the difference from your cost. The spousal rollover exists mainly on relationship breakdown. So the planning has to happen earlier:

• Buy in the intended ownership from day one. If a couple funds and registers an investment 50/50, each spouse reports half the gain on their own return and applies their own 50% CGT discount after each has held their parcel 12 months. Re-titling a single-name asset after it has tripled is a disposal, not paperwork.
• Use both super caps. Concessional and non-concessional superannuation contributions are per person; a self-managed super fund can hold digital assets under its rules for couples who want long-term exposure inside the low-tax pension structure.
• Don't replicate a UK trick in Melbourne. The "transfer before sale to spend a second allowance" move that saves a Brighton couple real money creates an Australian CGT event. There is no Australian AEA to spend in the first place.

Japan and India: two places not to over-clever

Japan has no joint return, and spouses are "special relatives" with only the ordinary ¥1.1 million annual gift allowance — the famous ¥20 million marital-home exemption after 20+ years is for housing, not crypto. Transfers above the threshold can attract gift tax at steep progressive rates, and because the NTA taxes crypto gains as miscellaneous income per person, simply moving coins between wallets to "balance" the household buys you nothing except documentation risk. Living-expense and education transfers between spouses are exempt gifts when genuinely used for those purposes; funding a spouse's altcoin portfolio is not a living expense.

India is friendlier on the transfer and harsher on the consequence. A gift of crypto to a spouse is exempt from tax under §56 because a spouse is a "relative." But §64 clubbing then adds income arising from the gifted asset back to the giver's return — the VDA gains stay taxed at your flat 30% plus cess regardless of whose exchange account displays them. Combined with the fact that VDA losses can't offset anything anyway, there is no Indian couple play analogous to London's. The only legitimate split is genuine ownership funded by genuine separate money, which for most salaried couples traces back to the same pool. The India page shows the math.

The one trap every couple should memorize

More couples lose a legitimate deduction through spouse coordination than save one through cleverness. Before either of you tax-loss harvests in December:

1. Canada: pause both spouses' auto-invest purchases for the 61-day window around the loss sale — affiliated-person purchases deny it.
2. US: no spousal repurchase of ETF shares in the 30-day window; for direct coins, treat the same caution as a hedge against H.R. 10357 enactment.
3. UK: the spousal no-gain/no-loss route is not a 30-day bed-and-breakfast match, but it has to be an actual change of ownership that endures — sell-and-gift-back-to-myself schemes fail.
4. India: there is no point harvesting at all; VDA losses do nothing, and §64 follows the asset.

I run the year-end numbers for both of our names side by side in the batch calculator, then plan disposals after seeing the household picture rather than each wallet in isolation.

The annual couples routine we actually use

Once a year, in January, we do a thirty-minute review together: confirm whose money funded which wallet (ownership follows money, in every country); check whether a genuine transfer before a planned sale spends a second allowance legally (UK/Germany: yes, Australia: no, US: neutral on today's gain, India/Japan: counterproductive); verify neither spouse is accidentally inside the other's loss window; and make sure beneficiary designations and the estate plan match the titling — a joint-tenancy-with-right-of-survivorship choice and community-property step-up are worth more than most years' CGT planning. If that sentence just made you realize your largest bag is in one name with no documentation, fix that before the next big sale, not after.

Marriage is a tax opportunity in maybe three of these seven countries and a tax irrelevance in three others, with Canada offering a rollover that mostly leads to a wall. The discount isn't automatic anywhere. It's an annual, documented, genuinely-ownership-changing routine — or it's nothing.

General information, not tax advice. Figures such as the US non-citizen spouse exclusion and the UK/German allowances are indexed or periodically amended; confirm current-year amounts and the status of H.R. 10357 before acting. Cross-border marriages need advice in both jurisdictions.

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