How Long Does an ISA Transfer Take? Cash vs Stocks and Shares Timelines

How Long Should an ISA Transfer Take?

HMRC’s ISA rules give providers a maximum of 15 working days for a cash ISA to cash ISA transfer and 30 calendar days for every other type of transfer. That includes Stocks & Shares ISAs, Lifetime ISAs moving to an investment LISA, and transfers between cash and investments. The clock starts when the old provider receives a valid transfer request from the new one.

Those are maximums, not targets. Most transfers between large providers finish comfortably inside them — but the type of transfer makes a big difference:

In-specie transfers should still complete within 30 days, but they are the ones most likely to overrun — more on why below. HMRC sets out the rules in its ISA transfer guidance on gov.uk.

What Happens Between Requesting and Receiving a Transfer?

A transfer moves through five stages, and most of the waiting happens at the old provider. Knowing where you are helps you chase the right firm. Here’s a typical timeline for a Stocks & Shares ISA transferred as cash between two large platforms:

Stage 3 is where things slow down. The old provider has to verify your identity matches, check whether you’ve subscribed this tax year, deduct any final charges and, for investments, place sell orders. Fund sales usually settle a few working days after the trade, so the cash can’t leave until then.

Stage 5 is the bit you control. Many platforms don’t reinvest transferred cash automatically, so it can sit idle until you log in. On a £100,000 ISA, every week in cash during a rising market is a real cost — check the account daily once the transfer is under way, or set up an automatic investment instruction if the platform offers one.

Why Do In-Specie Transfers Take Longer?

Because each holding has to be re-registered individually rather than sold once and sent as a single cash payment. Your funds and shares are held in the old platform’s nominee name. To move them, ownership on the register has to change to the new platform’s nominee, holding by holding.

• Funds (OEICs and unit trusts) are re-registered through each fund’s registrar or transfer agent. Eight funds can mean eight separate processes with eight separate counterparties.
• ETFs and shares usually move electronically through CREST, which is generally quicker, but still needs matching instructions from both sides.
• Share-class conversions add a step if the new platform only offers a different class (for example, a cheaper “clean” class). A conversion within the same fund is generally not a disposal, but it adds time.
• Holdings the new platform doesn’t offer can stall the whole transfer until you decide whether to sell them first or switch them for something it does hold.
• Older or smaller providers sometimes still process transfers on paper, which can add a week or more on its own.

The trade-off is that you stay invested throughout, so a slow in-specie transfer usually costs you nothing except patience. A simple portfolio — one or two low-cost global index funds — transfers far faster than a collection of a dozen funds and shares.

When Should You Start Chasing an ISA Transfer?

Check in after a week, chase firmly once you’re past the HMRC limit, and complain formally if there’s still no movement. Keep a note of the date you applied and any reference numbers from the start.

1. After 5–7 working days: log in to the new provider and check the transfer status. If it still shows “request sent”, ask them to confirm the old provider has acknowledged it. Mismatched names, addresses or account numbers are the most common cause of early rejections.
2. At the 15-working-day or 30-day limit: ask the new provider which side is holding things up. It’s nearly always the old provider, but not always.
3. Past the limit: make a formal complaint to the firm causing the delay, quoting the HMRC time limit and your application date. If you’ve lost interest or missed market gains, ask for redress — firms often compensate for avoidable delays.
4. After a final response or eight weeks: escalate free of charge to the Financial Ombudsman Service.

Whatever happens, don’t try to speed things up by withdrawing the money and paying it in yourself. That counts as a new subscription against your £20,000 allowance (2025/26), and anything over your remaining allowance loses its tax-free status permanently. If you’re moving to save on charges, our guide to ISA transfer fees and exit charges explains what the switch might cost, and our step-by-step ISA transfer guide walks through the process.

Is There a Best Time of Year to Transfer an ISA?

Avoid the weeks either side of the tax year end on 5 April if you can. Providers handle a surge of subscriptions and transfers in March and April, and turnaround times often stretch. A transfer in, say, May or October is likely to be processed faster.

If you’ve already paid into your ISA this tax year, you can now transfer part or all of those current-year subscriptions, and since 6 April 2024 you can hold more than one ISA of the same type in a year. That makes timing less critical than it used to be — you don’t need to wait for a new tax year to start contributing to the new platform. For a flexible ISA, though, any withdrawals you want to replace must go back into the original ISA before it transfers.

Frequently Asked Questions

Work Out Your Own Numbers

A few weeks in transit makes little difference over a FIRE journey; a lower annual charge on the new platform makes a lot. See what a cheaper home for your ISA could be worth:

• ISA Millionaire Calculator — see how long it takes to reach £1 million in your ISA at different contribution levels and growth rates

And don’t forget the full new State Pension of £11,502 a year (2025/26) from 67 — check your forecast at gov.uk/check-state-pension.