The humble Cash ISA, once a favourite for UK savers, is facing a moment of reckoning. In her Mansion House speech in July 2025, Chancellor Rachel Reeves confirmed what many expected: ISA reform is on the way. The current £20,000 allowance for Cash ISAs may be reduced, restructured, or phased into a broader system aimed at encouraging investment over saving.
Though no changes have been finalised yet, the direction of travel is clear. The government wants savers to become investors. If you’re thinking about how best to use your ISA allowance this year, it may be time to reconsider whether cash is the right place for your money.
Can I still use the full Cash ISA allowance this year?
Yes. Any changes to the allowance are unlikely to apply retrospectively, and even the most aggressive reform timeline would not affect the current 2025/26 tax year according to a recent piece in The Times. That means you can still put in up to £20,000 now and enjoy the usual tax benefits.
But is that the best use of your money?
The government’s case for investing – and what it means for you
Rachel Reeves and her advisers are looking across the Atlantic for inspiration. In the US, far more people invest their long-term savings in stocks, funds, and real assets. That investment helps make people richer, grow companies, power innovation, and fuel national productivity.
In the UK, by contrast, we’re far more likely to park our money in cash. The problem? Even in a high-interest environment, cash almost always loses value to inflation. And over time, that erosion adds up.
The goal of these reforms, according to The Guardian, is to create a nation of investors, not just savers, and to reinvigorate the capital markets.
Cash feels safe – but it quietly costs you
With inflation running at 3–10% in recent years and Cash ISAs offering around 2–4%, the real return on your savings is negative. In other words, your money buys less each year.
For savers looking to protect their purchasing power, or grow wealth over the long term, cash alone rarely delivers.
Why early investing makes a difference
The sooner you put your ISA allowance to work, the longer your money compounds. Even if you plan to invest in the same product, using your allowance at the start of the tax year – rather than waiting until the end – gives you more time in the market. That time translates into extra growth, year after year.
Looking beyond cash – what are the options?
If you want to keep your returns tax-free but improve long-term performance, there are several alternatives:
- A Stocks and Shares ISA gives you access to listed companies and funds. Stocks and shares can be volatile, but historically offer strong long-term growth.
- A Stocks and Shares Lifetime ISA is ideal if you’re under 40 and saving for your first home or retirement, with a 25% government bonus.
- An Innovative Finance ISA (IFISA) lets you invest in alternative assets like residential property – offering stable income and often inflation-linked returns.
Why residential property investing might be the middle ground investors are looking for
For investors deciding how to use their ISA allowance, residential property offers a compelling middle ground between the safety and low returns of cash and the volatility and potentially higher returns of equities.
Stock markets are currently trading near all-time highs. While this reflects past growth, it also raises concerns about limited upside and increased downside risk. Equities have shown extreme volatility in recent years and remain vulnerable to future shocks — from inflation and interest rate changes to geopolitical tensions, tariffs, and trade disruptions.
By contrast, cash provides capital preservation but little to no growth after inflation. Neither is perfect and property investing offers a different opportunity that sits outside the volatility of equities but with growth potential and a higher, inflation linked yield than cash. At Housemartin, we offer Innovative Finance ISA (IFISA) opportunities linked to supported housing. These investments are designed to deliver:
- Long-term, inflation-linked leases (typically 5 to 10 years) so your investment is not eroded by inflation.
- Rent paid by charities or housing associations — reliable partners often backed by local or central government.
- No loss of income during voids, as tenants continue to pay rent even when properties are temporarily unoccupied
- Tenants responsible for most maintenance and repairs
Beyond the financial profile, there’s also the social return: your capital helps provide safe, long-term housing for vulnerable people in the UK.
To see how this works in practice, visit our case studies page for examples of recent investments and outcomes.
What does the data say?
Here’s how a £10,000 investment would have performed over the past 30 years in three asset classes: cash, property, and equities. The results speak for themselves.
While cash creeps along, both property and equities show significantly stronger growth – despite periods of market volatility. Investors who stayed the course were rewarded for their long-term perspective.
Make your money work for you
You don’t have to abandon cash altogether. It still plays a role for short-term savings and emergency funds. But if you’re thinking about how to use your ISA allowance this year, it’s worth asking whether keeping it all in cash really serves your future.
At Housemartin, we offer ISA-eligible investments in supported housing – combining secure income, inflation protection, and social impact in a single product.
If you’re ready to make your ISA work harder, now is the time.
Sign up with Housemartin today and explore our IFISA opportunities