Transfer an ISA or withdraw and reinvest?

Moving an ISA to a new provider is not the same as taking your money out and paying it in somewhere else, and the difference can cost you a year's allowance. A formal transfer moves the money from one ISA manager to another, keeps its tax-free status, and does not count as a new subscription. Withdrawing the money yourself and paying it into a new ISA does count, and uses up part of your £20,000 annual allowance¹.

The rule that catches people out is simple: once you take money out of an ISA yourself, it is no longer tax-free savings, and putting it back into an ISA counts as a fresh payment for the current tax year³. The exception is a flexible ISA, where money taken out and replaced in the same tax year does not touch the allowance⁴.

There is also a deadline on the horizon. From 6 April 2027, transfers from a stocks and shares ISA or an innovative finance ISA into a cash ISA will not be allowed for anyone under 65⁵. Anyone planning to move investments into a cash ISA has a window that closes at the end of the 2026/27 tax year.

Withdrawing and reinvesting uses up your ISA allowance again

The distinction between a transfer and a withdrawal is the single most important thing on this page. A transfer is a provider-to-provider instruction: your old ISA manager sends the money or the investments directly to the new one, and the ISA wrapper stays intact throughout. Nothing about it counts as a new subscription, so your £20,000 allowance for the year is untouched⁹.

A withdrawal is different. The moment the money leaves the ISA and lands in your bank account, it stops being tax-free savings. If you then pay it into another ISA, that payment is a new subscription and counts towards your allowance for the current tax year³. If you have already used your allowance elsewhere, you may not be able to put the money back at all until the next tax year.

The allowance itself is £20,000 a year, it resets every 6 April, and unused amounts do not roll over⁷. So a withdrawal-and-reinvest mistake in March can mean waiting until April to fix it, and even then the money goes in as next year's subscription rather than this year's.

The practical answer is to ask the new provider to transfer the ISA rather than closing it and moving the cash. Every ISA manager has a transfer process, and the receiving provider normally runs it. Our guide to how to transfer an ISA sets out the steps.

Flexible ISAs: putting money back in the same tax year

A flexible ISA is a type of ISA, cash or stocks and shares, that lets you take money out and pay it back within the same tax year without it affecting your allowance⁴. That makes it the one case where a withdrawal does not cost you allowance, provided you replace the money before the tax year ends.

Two conditions matter. The replacement has to happen in the same tax year, so money taken out in March and put back in May is a new subscription for the following year. And the money has to go back into the same ISA account, though it can go into a flexible stocks and shares ISA or a flexible innovative finance ISA rather than the flexible cash ISA it came from¹⁰.

If you do not replace it in time, the money simply sits outside the ISA. It has not been lost, but it can only go back in as a new subscription, using whatever allowance you have left in the year you pay it in. Unused allowance does not carry over, and the allowance resets on 6 April⁷.

Not every ISA is flexible. Whether yours is depends on the terms your provider set, so it is worth checking before relying on the replacement rule. Our page on flexible ISAs covers how the accounts work in more detail.

Transferring investments as cash or in specie

If you hold a stocks and shares ISA, the transfer itself comes in two forms, and the difference matters for what happens to your money during the move.

A cash transfer sells your investments first and moves the proceeds across as money. You are out of the market while the transfer completes, so a rising market during that period means you buy back at higher prices¹³. An in specie transfer moves the investments across as they are, so you stay invested throughout the process¹³. Some providers offer both and let you choose; others decide based on the terms of the receiving ISA¹⁵.

The choice is not always yours. Where the new provider cannot hold an investment you own, it will be sold and moved as cash. Where the old and new providers both hold it, an in specie transfer is usually possible¹⁵.

There is a separate timing rule worth knowing. ISAs lose their tax-advantaged status if they are not transferred within 30 days of the investor receiving notice from the ISA manager¹⁶. That is a backstop against transfers that stall, not a target, but it explains why providers chase paperwork.

Bed and ISA: moving investments from a general account into an ISA

Investments held outside an ISA cannot normally be moved straight in. The standard route is to sell them, move the cash, and buy them back inside the ISA, a process known as bed and ISA¹⁷. The name comes from the idea of putting the investment to bed in one account and waking it up in another.

The mechanics are straightforward. You sell the investments in your general investment account, leave the proceeds as cash, then transfer that cash into your ISA and repurchase the same investments¹⁹. Some platforms run the sale and repurchase for you as a single instruction²¹.

The catch is the allowance. Money moved from a general investment account into an ISA counts towards your £20,000 annual allowance, because it is a new subscription²⁰. So bed and ISA is a way of using your allowance to shelter existing investments, not a way of avoiding the limit.

The one exception to the sell-and-repurchase rule is shares from an HMRC-approved Share Incentive Plan. Those can be transferred directly into the stocks and shares part of an ISA within 90 days of coming out of the plan, free of Capital Gains Tax, with the market value counting as an ISA subscription²². Our page on bed and ISA walks through the process.

Transfers from stocks and shares ISAs into cash ISAs end for under-65s

At the moment, you can transfer between different types of ISA, including a cash ISA into a stocks and shares ISA or the other way round²³. That changes on 6 April 2027.

From that date, transfers from a stocks and shares ISA or an innovative finance ISA into a cash ISA are prohibited where the account holder is below the age of 65⁵. The restriction is disapplied for those aged 65 and over from the start of the tax year in which they turn 65²⁴. The government describes the measure as an anti-circumvention rule, designed to prevent transfers from non-cash ISAs into cash ISAs for the under-65s²⁵.

Transfers in the other direction are unaffected. It remains possible to transfer from a cash ISA to a non-cash ISA²⁶. The rules for stocks and shares and innovative finance accounts also continue to allow transfers into a stocks and shares account, an innovative finance account, or a Lifetime ISA²⁷.

Anyone under 65 who wants to move investments into a cash ISA has until the end of the 2026/27 tax year to do it. After that, the only routes out of a stocks and shares ISA are another stocks and shares ISA, an innovative finance ISA, or a Lifetime ISA²⁷. Our page on changes to the cash ISA limit covers the wider reforms taking effect at the same time.

What a transfer costs you, and what it does not

A transfer between ISA providers should not cost you allowance, but it can cost you money in other ways. Some platforms charge an exit fee when you leave, and some charge for the transfer itself. Those charges come out of the money being moved, so it is worth checking both sides before starting.

The bigger cost is usually the one that is easy to miss: time out of the market on a cash transfer, and any dealing charges for selling and repurchasing investments. On a large portfolio, a week out of a rising market can outweigh a modest exit fee.

What a transfer does not do is reset your ISA's history. Money saved in previous years can be shifted from ISA to ISA without losing the tax breaks, and only the money you have paid in during the current tax year counts towards your annual allowance when it moves¹¹. That is why transferring an old ISA is normally straightforward, while transferring one you have been paying into this year needs a little more care.

If a transfer goes wrong, the receiving provider is normally responsible for chasing it, and there are routes to complain if it stalls. Our pages on how long an ISA transfer takes and compensation if an ISA transfer is delayed set out what to expect.