If you own shares or funds in a taxable account, Bed and ISA is the single move that stops HM Revenue & Customs taxing them ever again. You sell the holding in your General Investment Account, then rebuy the same holding inside your Stocks & Shares ISA — on the same day — so every future gain and dividend becomes tax-free. Done right, it costs a fraction of the tax it saves. Done blindly, it can trigger a bill you didn't need to pay.
This guide walks the whole play: the four steps, the tax it removes, the 0.5% cost it adds, and the exact point where it stops being worth it. If your endgame is holding index funds inside a wrapper, pairing this with a structured ETF investing course turns a one-off tax trick into a repeatable habit.
- Bed and ISA sells a taxable holding and rebuys it inside your ISA, making all future growth and dividends tax-free.
- The sale uses your £3,000 capital gains allowance for 2026/27; keep each year's realised gain under it and you pay no CGT.
- You still pay 0.5% stamp duty on the rebuy of UK-listed shares, plus any spread — that's the real cost.
- The 30-day rule does not apply, because a purchase inside an ISA counts as a separate acquisition.
- It matters more in 2026: dividend tax rates just rose 2 percentage points, so sheltering income is worth more than last year.
What is Bed and ISA?
Bed and ISA is the process of selling an investment held in a taxable General Investment Account (GIA) and immediately rebuying the same investment inside your Stocks & Shares ISA. The sale realises a capital gain you can cover with your annual allowance; the rebuy locks the holding into a wrapper where future gains and dividends are never taxed. It is fully HMRC-recognised — not a loophole.
The name is old broker slang. "Bed and breakfast" once meant selling shares and buying them back the next morning purely to reset your cost base. Regulators killed that with the 30-day rule. Bed and ISA is its legitimate successor: the rebuy happens inside a tax wrapper, so the anti-avoidance rule doesn't bite.
Here's why it exists. Money already sitting in a GIA is exposed on two fronts — capital gains tax on shares when you sell, and dividend tax every year you hold. Bed and ISA is how you migrate that money into the one account that removes both, using an allowance that resets every 6 April and cannot be carried forward.
How Bed and ISA works: four steps
The move looks like two trades, but the order and the numbers matter. Most brokers — interactive investor, Hargreaves Lansdown, AJ Bell and others — run it as a single linked instruction so you're only out of the market for minutes.
Notice what step 4 forces: this is rarely a one-year job. If you're holding £60,000 of stock sitting on a large gain, you phase it — a slice each April — so no single year's realised gain breaches the allowance. That's the difference between paying nothing and handing over 24%.
The tax Bed and ISA actually saves
Two taxes disappear the moment a holding is inside the ISA: capital gains tax on any future sale, and dividend tax on any income it pays. The numbers below are the 2026/27 figures that decide how much you keep.
Source: GOV.UK ISA guidance and interactive investor CGT tables, 2026/27.
The CGT saving, in cash: a higher-rate investor realising a £3,000 gain unwrapped pays 24% — that's £720. Move the holding inside the ISA and that £720 is gone, and so is CGT on every future gain the holding ever makes. The allowance is worth £720 to you this year and again next year.
Now the part that changed in 2026. In the Autumn Budget 2025, the Chancellor raised dividend tax rates by 2 percentage points from 6 April 2026: the basic rate went from 8.75% to 10.75%, and the higher rate from 33.75% to 35.75% (the additional rate stays at 39.35%). The dividend allowance stayed at just £500. The government expects the change to raise around £280 million in 2026/27, rising toward £1.39 billion by 2030/31.
Source: GOV.UK, "Changes to tax rates for property, savings and dividend income"; ICAEW Budget coverage, November 2025.
What that means for you: income inside an ISA is completely untaxed and doesn't touch the £500 allowance. On a £20,000 holding yielding 4%, that's £800 of dividends a year. Unwrapped, a higher-rate investor now loses 35.75% of the slice above the allowance; inside the ISA, they lose nothing — and the saving compounds as the pot grows. The dividend rise makes bedding income-paying holdings more valuable this tax year than last.
Put both savings together in one worked case. Say you hold £20,000 of a FTSE 100 tracker in a GIA, sitting on a £2,800 gain and yielding 4%. Bed it: the £2,800 gain falls under the £3,000 allowance, so you pay £0 CGT; the rebuy costs 0.5% stamp duty, or £100; and from that day the £800-a-year dividend and every future gain sit outside tax. A higher-rate investor recovers that £100 cost from the sheltered dividend income inside the first year, then keeps saving every year after.
Does the 30-day rule apply to Bed and ISA?
No. The 30-day "bed-and-breakfast" rule stops you selling shares and rebuying the identical shares in the same account within 30 days to reset your cost base. But a rebuy inside your ISA is legally a separate acquisition in a separate account, so the rule doesn't match the two trades — which is exactly why the repurchase can happen the same day and still crystallise your gain against this year's allowance.
That is the whole reason Bed and ISA works where plain bed-and-breakfasting no longer does. You get the tax-year reset without the 30-day wait, and you never leave the market for more than the time it takes the trades to settle.
One caution: the exemption applies to the ISA rebuy, not to any parallel buying you do in the same taxable account. If you also repurchase the identical holding inside the GIA within 30 days, that leg is still caught by the rule.
What Bed and ISA costs you
Bed and ISA is not free, and the honest case for it depends on the costs being smaller than the tax saved. There are three.
Stamp duty: buying UK-listed shares triggers 0.5% Stamp Duty Reserve Tax, and ISAs get no exemption — you pay it on the rebuy. On £20,000 that's £100. There is no UK stamp duty on funds or US shares, so a portfolio of ETFs and overseas stocks avoids this entirely.
The spread and any commission: you cross the bid-offer spread once, and many platforms charge a single dealing commission for the linked trade rather than two. On liquid shares and funds the spread is small; on illiquid holdings it can quietly exceed the stamp duty.
The out-of-market gap: for the minutes between sale and repurchase, you're in cash. If the price jumps in that window, you rebuy higher. It's usually trivial, but it's a real risk on a fast-moving day.
| Factor (2026/27) | Inside a Stocks & Shares ISA | Unwrapped GIA |
|---|---|---|
| Capital gains tax | None, ever | 18% basic / 24% higher band, above £3,000 |
| Dividend tax | None, ever | 10.75% / 35.75% / 39.35%, above £500 |
| Stamp duty on rebuy | 0.5% on UK shares (nil on funds / US shares) | Same 0.5% when you buy anyway |
| Tax reporting | Nothing to declare | Self-Assessment once gains or dividends breach the limits |
Source: GOV.UK dividend and CGT rates 2026/27; interactive investor stamp-duty guidance, 2026.
Read the table as a decision, not a description: the ISA column removes two taxes and all reporting for a one-off 0.5% you'd often pay on a purchase regardless. That asymmetry is why the move is worth the friction for most long-term holders — and why the reporting saving alone tempts people who dread Self-Assessment.
Is Bed and ISA worth it? Who should — and shouldn't
It's worth it when the tax and reporting you escape clearly beat the 0.5% stamp duty and spread you pay. In practice that means three groups should look hard at it.
Do it if you hold shares or funds in a taxable account and have unused ISA allowance; if those holdings pay dividends, especially now rates have risen; or if you're sitting on gains that will eventually breach the shrunken £3,000 allowance. The allowance was £12,300 as recently as 2022/23 — a 76% cut since — so far more ordinary investors now trip the CGT threshold than a few years ago.
Think twice if the holding is deeply illiquid (wide spread), if it's already a fund or US share you'd want to sell soon anyway, or if crystallising the gain now pushes your total realised gains for the year over £3,000 and creates a bill. In that last case, phase it across tax years instead of forcing it all at once.
The break-even is simple. If the tax and reporting you avoid over your holding period beat the roughly 0.5% you pay once, bed it. For a long-term, dividend-paying holding that maths almost always favours the wrapper: the stamp duty is a one-off, while the tax shelter keeps compounding for as long as you own the asset.
The wrapper choice sits underneath all of this. If some of the money is really for retirement, it's worth checking whether a SIPP or an ISA fits your goals before you commit the allowance. And because the dividend hit is now larger, it's worth understanding exactly how UK and US dividend tax now works on anything you leave outside the wrapper.
Investing involves risk of loss, and tax treatment depends on your individual circumstances and can change. This article is educational content, not personal tax or investment advice.
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