Earn 4.79% AER* with the Moneyfarm Cash ISA.
Enjoy tax-free growth, daily interest, flexible access, and no fees. All with the security of FSCS protection up to £85,000. - see more
Enjoy tax-free growth, daily interest, flexible access, and no fees. All with the security of FSCS protection up to £85,000. - see more
Your cash is securely held with trusted Qualifying Money Market Funds managed by carefully selected and regulated financial institutions These are "qualifying" because they meet certain regulations that allow them to be considered as cash equivalents.
*Variable rate correct as at 12/10/2026. Subject to conditions and ISA rules.
A smarter way to save - combining flexibility, security, and tax-free benefits to help you make the most of your money.
Watch your savings grow every day with tax-free interest applied on every weekday.
Make up to three withdrawals or transfers out per year without impacting your boosted rate, and top up anytime, fee-free.
Your cash is held with trusted partners and safeguarded with FSCS protection up to £85,000.
Consolidate your savings with no transfer fees, making it simple to manage all your ISAs in one place.
Watch your savings grow every day with tax-free interest applied on every weekday.
Make up to three withdrawals or transfers out per year without impacting your boosted rate, and top up anytime, fee-free.
Enjoy tax-free growth with a variable interest rate that rewards you even more in your first year.
Daily interest calculation
Your interest is calculated daily, so you can see your savings growing tax-free.
Boosted first-year rate
Enjoy a higher return with our exclusive bonus rate for the first 12 months, maximising your savings early on.
Your interest is calculated daily, so you can see your savings growing tax-free.
Enjoy a higher return with our exclusive bonus rate for the first 12 months, maximising your savings early on.
Standard rate for your 1st year *
4.79%**
Standard rate after your 1st year
3.62%**
After the 3rd withdrawal in a year
3.62%**
*500 min. balance; New customers rate: 4.79% composed of a 3.62% AER variable), plus an additional 1.17% boost, calculated daily and paid after 12 months; Existing customers opening a new Cash ISA rate: 3.62% AER (variable). Transfers in are not included; transfers out count towards your three-movement limit.
**Variable rate is correct as at 12/10/2026, linked to a Qualifying Money Market Fund (QMMF) and may change immediately. This page will always reflect the current rate. Subject to conditions and ISA rules. Terms and conditions apply.
With the Moneyfarm Cash ISA, you can withdraw funds whenever you need, without penalties - perfect for unexpected expenses or extra peace of mind. Your savings remain flexible and there if you need them.
To maintain the bonus rate, keep at least £500 in your account and limit withdrawals to three per year.
Your savings are safeguarded by the Financial Services Compensation Scheme (FSCS), providing protection of up to £85,000 per eligible person, per bank. This government-backed scheme ensures peace of mind for your hard-earned money, even in the unlikely event of a provider’s failure.
FSCS protection does not cover changes in investment value due to market fluctuations.-See here for more details.
Switching to Moneyfarm is quick, easy, and completely free. Track your transfer every step of the way, with our expert support team ready to assist whenever you need. And remember, anything transferred is outside of the £20,000 annual allowance - so you can transfer anytime.
A Cash ISA (Individual Savings Account) is a savings account available to UK residents aged 18 or over. It works in a similar way to a traditional savings account, but with one key difference: the interest you earn is not subject to Income Tax.
Each tax year, the UK government sets an annual ISA allowance, which is the maximum amount you can contribute across all your ISAs combined (Cash ISA, Stocks and Shares ISA, Innovative Finance ISA, and Lifetime ISA). You can choose to allocate all or part of this allowance to a Cash ISA.
Once money is placed into a Cash ISA, any interest generated is protected from tax year after year, helping your savings grow more efficiently over time.
Opening a Cash ISA is simple. You deposit money into the account, and the provider pays interest on your balance. The key advantage is that this interest is tax-free.
You can usually choose between:
The right option depends on your financial goals and how quickly you may need access to your savings. If flexibility is important, easy access accounts may be suitable for you. If you are confident you won’t need the money for a fixed period, a fixed-rate option may offer more certainty.
Many savers ask whether a Cash ISA is still worthwhile given the Personal Savings Allowance (PSA). The PSA allows basic rate taxpayers to earn a certain amount of savings interest tax-free each year, with lower allowances for higher-rate taxpayers.
However, a Cash ISA can still offer advantages:
If you have substantial savings or expect your interest earnings to exceed your Personal Savings Allowance, a Cash ISA can provide valuable protection. It can also be useful if your tax band changes in the future.
To open a Cash ISA, you must:
You can only open and pay into one Cash ISA per tax year, but you can transfer previous years’ ISA savings to a new provider if you find a more competitive rate or better features.
ISA transfers must be completed through the official transfer process to ensure your tax-free status is maintained. Withdrawing the money yourself and redepositing it could affect your allowance.
The ISA allowance resets at the start of each new tax year (6 April). If you don’t use it, you lose it — unused allowance cannot be carried forward.
For this reason, many savers aim to make full or partial use of their ISA allowance annually, even if they initially hold funds in cash before later deciding to invest.
Using your allowance strategically can help build a growing tax-efficient savings pot over time.
A Cash ISA may be appropriate if you:
It is particularly suited to those who prioritise capital preservation over investment growth. Unlike Stocks and Shares ISAs, a Cash ISA does not expose your money to market fluctuations. Your capital is not at risk from market movements (although inflation can reduce the real value of cash over time).
If your goal is long-term growth and you are comfortable with investment risk, you may wish to consider whether combining cash savings with investment options better suits your overall financial plan.
Depending on the type of Cash ISA you choose, you may be able to access your money whenever you need it, or you may agree to lock it away for a fixed period.
Some providers also offer flexible ISAs, which allow you to withdraw and replace money within the same tax year without affecting your annual allowance. This feature can be useful if you anticipate temporary cash flow needs.
Before opening an account, it’s important to check withdrawal rules, interest structures and any applicable conditions.
A Cash ISA offers a combination of simplicity, tax efficiency and security. While returns may vary depending on interest rates, the tax-free wrapper ensures that everything you earn stays yours.
For many savers, a Cash ISA forms part of a broader financial strategy — balancing accessible savings with longer-term investments. By understanding how the allowance works, comparing access options, and aligning your account choice with your goals, you can use a Cash ISA as a practical building block in your overall financial planning.
As with any financial product, it’s important to review your needs regularly and ensure your savings approach reflects your evolving circumstances.
Your cash is held with trusted partners and safeguarded with FSCS protection up to £85,000.
Consolidate your savings with no transfer fees, making it simple to manage all your ISAs in one place.
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By making an investment, your capital is at risk. The value of your Moneyfarm investment depends on market fluctuations outside of our control and you may get back less than you invest. Past performance is no indicator of future performance. The tax treatment of a Moneyfarm Stocks and Shares ISA and a Moneyfarm Pension depends on your individual circumstances and may be subject to change in the future. You should seek financial advice if you are unsure about investing.
©2026 MFM INVESTMENT Ltd
Registered office: 90-92 Pentonville Road, London N1 9HS | Registered in England and Wales Company No. 09088155 | Telephone number: +44 (0)20 3745 6991 | VAT No. 467458154
Moneyfarm is a trading name of MFM Investment Ltd, which is authorised and regulated by the Financial Conduct Authority (FCA Firm Reference Number: 629539)
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Authorised and regulated by the Financial Conduct Authority as an Investment Advisor and Investment Management Company - Authorisation no. 629539
Moneyfarm uses an encrypted connection to protect your data.
Funds typically appear in your account within 1–2 working days after we receive them.
ISA transfers can take up to 21 days for Cash ISAs and up to 30 days for Stocks & Shares ISAs. This timeline also applies to Etoro/Moneyfarm ISA transfers. The exact duration depends on how quickly your current provider processes the transfer.
Your Cash ISA is invested in qualifying money market funds and is protected under the Financial Services Compensation Scheme (FSCS) investment protection, not the deposit protection scheme. This means you may be entitled to compensation of up to £85,000 if MFM Investment Ltd were to fail and you suffer a financial loss as a result. FSCS protection does not cover losses from market performance.
A money market fund (MMF) is a type of fund that is trusted by banks, other financial institutions and large companies to keep their money safe and accessible, while giving them a return. Unlike a traditional savings account (which essentially lends your money to a single bank), a money market fund spreads deposits across a diverse range of low-risk financial institutions, with maturities ranging from overnight to six months. This diversification makes it very resilient.
A qualifying money market fund (QMMF) is a type of money market fund that is approved to hold client money, for example Cash ISA savings. What makes it "qualifying" is that the QMMF must meet higher regulatory standards than other MMFs.
Because your money is held in a QMMF rather than a traditional bank deposit, it falls under FSCS investment protection rather than deposit protection, meaning you're covered up to £85,000 if MFM Investment Ltd were to fail. The QMMF structure is designed to maintain a stable value, but it is not a guaranteed deposit: as with all investments, your capital is at risk.
Yes. Our Cash ISA has a variable rate, which means the rate can go up or down according to market conditions (largely driven by any changes in the Bank of England base rate). If we have to make a change to the rate we offer in the future, any rate changes will be reflected on this page and in the app.
Note that the rate can also drop if the balance falls below £500, or if a customer makes more than 3 outbound movements (cash withdrawals or ISA transfers out) in a 12-month period.
Our cash ISA rate moves in line with the underlying money market funds, which respond to changes in the wider interest rate environment. We don't send a notification each time the rate changes, but you can always see the current rate in the app. If you’re on a bonus rate, keep in mind that once your introductory period ends, your rate will move to the base rate. You’ll always see your current total rate in the app.
The bonus interest is an additional rate on top of our base rate, paid for an introductory period. Once your bonus year ends, your rate moves to the base rate. You'll always see your current total rate in the app. When your bonus year is approaching its end, it’s a good moment to review your options. You may want to explore whether transferring to a new provider or topping up makes sense for you.
Your cash ISA is held in money market funds, which pay interest in a slightly uneven pattern across the week. You'll typically see larger payments on Mondays and/or Fridays, with smaller amounts on other days. Over a full week it evens out.
From 6 April 2027, the annual cash ISA subscription limit will change for savers under 65.
If you’re under 65, you’ll be able to save up to £12,000 per tax year in a cash ISA, down from the current £20,000. The overall ISA allowance of £20,000 stays the same: the remaining £8,000 will need to go into an investment ISA, such as a Stocks & Shares ISA.
If you’re 65 or over, nothing changes. You can continue saving up to £20,000 in cash each year. The 2026/27 tax year (which started 6 April 2026) is the last full year under the current rules for under-65s, so if you want to make the most of the higher allowance, now is a good time to act.
Yes. You can transfer your cash ISA to another provider at any time without losing your tax-free wrapper or using up your annual allowance. From April 2027, there is one new restriction to be aware of: if you’re under 65, you will no longer be able to transfer money from a Stocks & Shares ISA back into a Cash ISA. Transfers from Cash ISA to Cash ISA remain unrestricted.Please note: if your Cash ISA carries a promotional bonus rate, an ISA transfer out counts towards your three-movement limit. Making more than three outbound movements in a 12-month period will result in the bonus rate being forfeited.
We update this page whenever the rate changes. We don’t send a proactive notification each time, but you can always see the current rate on this page and in the app.
Interest begins accruing the day after your deposit settles in the money market fund, not the day you initiate the transfer. Settlement usually takes 1–2 business days. In the first one to two weeks you may see zero or very small daily payments: this is normal and will catch up once the funds have accumulated enough interest to generate visible payments. You will be receiving the rate advertised.
Yes, withdrawing money is quick and easy from your Moneyfarm Cash ISA. Just head to your Cash ISA in the Moneyfarm app to request the amount you want to withdraw from your ISA.
This is a two-step process: first, your funds need to settle in your Moneyfarm account, this can take up to 3 working days. Once available, you can initiate the transfer to your linked bank account, which typically arrives within 1–2 working days.
Moneyfarm Cash ISA is a flexible ISA, which means you can withdraw and replace money within the same tax year without affecting your annual ISA allowance. However, to qualify for the boosted interest rate, you’ll need to ensure you don’t make more than 3 withdrawals in a single year. If you withdraw more than 3 times in a year, the interest rate on your Cash ISA will drop to our standard rate.
Please note that for the purposes of the boosted rate, a ‘withdrawal’ includes any outbound movement of funds from your Cash ISA, including cash withdrawals and ISA transfers out to another provider. Both count towards the three-movement limit. Making more than three outbound movements in a 12-month period will result in the bonus rate being forfeited.
