Yes, having multiple cash ISAs is often worth it because it allows you to maximize tax-free interest by diversifying across different providers, securing better rates, and balancing fixed-term with instant-access accounts. Since April 2024, regulations allow contributing to multiple ISAs of the same type within a single tax year.
Saving money in multiple cash ISAs could give you access to competitive rates and greater protection for your wealth. But there are rules that limit your contributions. This article is not advice. If you would like to receive advice on your savings and investments, consider speaking to a Financial Adviser.
If you're not paying tax on your savings interest, cash ISAs have no benefit – so many should ditch them for higher-paying standard accounts. That's the message from MoneySavingExpert.com founder Martin Lewis in the third episode of the latest series of ITV's The Martin Lewis Money Show Live.
Currently, it's possible to get a cash ISA savings rate that beats the current rate of inflation (3.5% at the time of writing). This means your savings has more purchasing power. This is one reason why it could be time to think about moving your money into a savings or investment account with high interest rates.
Disadvantages: Interest rates may decrease, funds might be locked in fixed-rate ISAs, and not all accounts permit transfers, sometimes incurring exit fees.
In simple terms, a Cash ISA may be the best option when looking for stability or when you might need immediate access to your money, but a Stocks and Shares ISA may be better suited for long-term investments, as it creates the opportunity to earn more money overall.
As widely expected, Chancellor Rachel Reeves has taken an axe to the annual cash ISA allowance in a bid to encourage UK savers to invest. In Wednesday's Autumn Budget Reeves announced the £20,000 annual cash ISA allowance would fall from £20,000 to £12,000, from April 2027.
You can get around 7% interest on savings in the UK primarily through Regular Saver accounts, with top offers from Zopa (7.1% variable), First Direct (7% fixed), and the Co-operative Bank (7% variable), though these often require you to have their current account and limit monthly deposits, while Principality Building Society has offered rates near this (7.5%) on fixed-term savers, so check MoneySavingExpert and MoneyWeek for current deals.
Cash ISAs are tax-free. You won't pay tax on any interest you earn. At NatWest, we offer an instant access Cash ISA, and a Fixed Rate ISA with a set term. On the other hand, the interest you make on normal savings accounts may be taxed, if it's more than your Personal Savings Allowance.
The UK government has announced significant changes to the tax treatment of cash held within stocks and shares Isas, targeting a loophole that could allow savers to bypass newly imposed caps on tax-free cash savings.
The 70/20/10 rule for money is a simple budgeting guideline that splits your after-tax income into three categories: 70% for Needs (essentials like rent, groceries, bills), 20% for Savings & Investments (emergency funds, retirement), and 10% for Debt Repayment & Donations (extra debt payments or giving). It balances immediate living costs with long-term financial security, helping you cover necessities while building wealth and paying off liabilities.
Is £100,000 savings good in the UK? Yes. £100,000 is five times the annual ISA tax-free savings allowance and approximately ten times the UK average in savings. But if your AER (Annual Equivalent Rate) is lower than the rate of inflation, your money will lose value every year.
The "27.39 rule" (often rounded to $27.40) is a simple financial strategy to save $10,000 in one year by consistently setting aside $27.40 every single day, making it an achievable micro-saving habit to build wealth or an emergency fund. It turns the daunting goal of saving $10,000 into a manageable daily action, emphasizing consistency over large lump sums.
You can transfer as many ISAs as you need to into as many ISAs as you want to. So for example, you could consolidate five different ISAs into one ISA, or move money from one ISA into five other ones.
If you want to invest $10,000 over 10 years, and you expect it will earn 5.00% in annual interest, your investment will have grown to become $16,288.95.
ISAs. ISAs allow you to save up to £20,000 each tax year, with no income tax to pay on your returns. They come in various forms, including easy access and fixed rate accounts, of if you're saving for the long term, a Lifetime ISA could be worth considering.
You can now open and pay into more than one ISA of the same type in the same tax year, as long as your total ISA contributions stay within the £20,000 annual limit. There are different types of ISA, including: cash ISAs.
While fixed ISAs are less reactive to changes to the base rate, providers still often consider market forecasts when setting their pricing. This has seen the average one-year fixed ISA rate fall by 0.18 percentage points between November 2024 and 2025 to pay 3.89%.
Cash ISAs are useful for:
But there are some downsides worth thinking about: Interest rates are often lower than inflation. Your money isn't compounding in the way investments can. Over time, you may lose out on real buying power.
From April 2024, you can open multiple ISAs of the same type. Having more than one type of ISA can help you achieve different financial goals. For example, a lifetime ISA could be a good option if you're thinking about buying your first home, whilst a cash ISA would help you build up your savings.
A Cash ISA may be attractive because you earn regular interest without exposing yourself to the risks of the stock market, as you would if you invested. However, as we've seen, inflation could hamper growth, and your savings may even be losing value.
The main difference is that a cash ISA is a tax-efficient way to save money. Interest on your savings is paid free from UK income tax and capital gains tax. While both could help your money grow, choosing the right one (or a combination of both) for your circumstances can help maximise your money's growth potential.