Gifting Shares to Your Spouse for CGT Savings 2026/27
Transfers of shares between married couples and civil partners are treated as 'no gain, no loss' for Capital Gains Tax, letting couples double up their annual exempt amount and use each other's tax band. Here is how it works in 2026/27.
The no-gain-no-loss rule in outline
When married couples or civil partners transfer assets between themselves, HMRC treats the transfer as happening at a value that produces neither a gain nor a loss — the receiving spouse simply takes on the giver's original base cost. No CGT is due at the point of transfer; tax only becomes relevant when the receiving spouse eventually disposes of the asset.
Capital Gains Tax Calculator
Calculate Capital Gains Tax on property, shares and other assets for 2025/26.
Open Capital Gains Tax calculatorWorked example: doubling the annual exemption
Priya and Raj jointly built up a shareholding worth £46,000 with an original cost of £30,000 — a £16,000 gain, entirely in Priya's name.
| Scenario | Gain taxed | Exemption used | Taxable gain | CGT at 18% (basic rate) |
|---|---|---|---|---|
| Priya sells alone | £16,000 | £3,000 | £13,000 | £2,340 |
| Priya transfers half to Raj first, both sell | £8,000 each | £3,000 each | £5,000 each (£10,000 total) | £1,800 total |
By splitting the shareholding before sale, the couple uses both annual exemptions and reduces the combined taxable gain from £13,000 to £10,000, saving £540 in this example.
Worked example: shifting a gain into a lower tax band
Tom is a higher-rate taxpayer holding shares with a £20,000 gain. His wife Sarah is a basic-rate taxpayer with plenty of unused basic-rate band.
| Scenario | Rate applied | Tax on £17,000 taxable gain (after £3,000 exemption) |
|---|---|---|
| Tom sells alone | 24% (higher rate) | £4,080 |
| Shares transferred to Sarah first, she sells | 18% (basic rate, within her band) | £3,060 |
Dividend Tax Calculator
Calculate tax on dividends received from UK companies for 2025/26.
Open Dividend Tax calculatorDoing the transfer properly
The transfer needs to be a genuine change of legal and beneficial ownership — re-registering the shares with the platform or registrar into your spouse's name (or a jointly held account with an agreed split) before any sale is instructed. HMRC has successfully challenged arrangements that look like an attempt to attribute a same-day sale to the "wrong" spouse without a real prior transfer, so allow the transfer to complete and settle before proceeding to sell.
The dividend income angle
Beyond CGT, transferring income-producing shares to a lower-earning spouse permanently shifts future dividend income to their tax rate and dividend allowance, which is often the larger long-term saving if the shares are being held rather than sold immediately — worth considering alongside, not instead of, the CGT planning above.
Frequently asked questions
Is there Capital Gains Tax when I transfer shares to my spouse?
No — transfers of assets, including shares, between spouses and civil partners who are living together are treated as 'no gain, no loss' for CGT. This means the transfer itself triggers no tax charge at all; instead, your spouse simply inherits your original acquisition cost, and any gain is only realised when they eventually sell.
Why would I bother transferring shares to my spouse before selling?
The main reason is to use both partners' £3,000 annual Capital Gains Tax exemption instead of just one, and/or to have the eventual gain taxed at your spouse's marginal rate if they pay tax at a lower rate than you (18% rather than 24% on most gains, or use unused basic-rate band). Splitting a large gain across two people's allowances and bands can meaningfully reduce the total CGT bill on a joint sale.
What is the CGT annual exemption in 2026/27?
The annual exempt amount is £3,000 per person in 2026/27. A couple who each hold shares and each realise gains up to £3,000 in the tax year pay no CGT at all on those gains, whereas an unmarried couple, or shares held entirely by one partner, only get one £3,000 exemption between the sale.
Does this work for unmarried couples too?
No — the no-gain-no-loss rule only applies to spouses and civil partners. Unmarried couples transferring assets to each other are treated as making a normal disposal at market value, which can itself trigger a CGT charge on the transfer, so this planning route is not available to cohabiting but unmarried partners.
What rate of CGT applies to shares in 2026/27?
Gains on shares and other assets (not residential property) are taxed at 18% for basic-rate taxpayers and 24% for higher and additional-rate taxpayers in 2026/27, applied to the gain after the £3,000 annual exemption. If your spouse has unused basic-rate band, transferring shares to them before sale can mean more of the combined gain is taxed at 18% rather than 24%.
Do I need to actually transfer legal ownership, or can I just tell HMRC the shares are my spouse's?
You need a genuine, effective transfer of beneficial ownership — typically done by re-registering shares into your spouse's name (or a joint account split appropriately) with the share registrar or investment platform before the sale takes place. HMRC can and does challenge transfers that look like a same-day 'sell and attribute' arrangement rather than a genuine prior transfer of ownership.
Does the transfer need to happen well before the sale?
There is no fixed minimum gap required by law, but the transfer must be genuine and complete before the sale is agreed — HMRC guidance and case law focus on whether beneficial ownership has actually passed, so it is safer to complete the transfer with the platform or registrar and allow it to settle before instructing any sale, rather than transferring and selling on the same day.
Does gifting shares to a spouse affect Income Tax on dividends too?
Yes, and this is often a bigger saving than the CGT angle — if shares continue to be held (rather than sold), transferring them to a lower-earning spouse means future dividend income is taxed at their rate and uses their £500 dividend allowance, which can be valuable where one spouse is a non-taxpayer or basic-rate taxpayer and the other is higher-rate.
Are there any downsides to transferring shares to a spouse?
The main practical downside is losing control — once transferred, the shares (and any proceeds) legally belong to your spouse, which matters if the relationship later breaks down, since the no-gain-no-loss rule assumes an ongoing marriage. There may also be administrative costs (platform transfer fees) and, if divorce or separation follows, the transfer is irreversible without your spouse's agreement.
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