Stocks and shares ISAs: How they work and where to invest in UK 2026

A new industry-backed campaign in the UK, titled 'Invest for the Future' and fronted by a character called “Savvy the Squirrel”, aims to persuade cash-rich savers to consider stocks and shares ISAs as a tax-efficient route into the market. The initiative, launched on 23 April 2026, brings together around 20 financial firms and has support from HM Treasury, the Financial Conduct Authority (FCA) and the Money and Pensions Service.

Organisers say research underpinning the campaign shows substantial latent demand: roughly 10.1 million people with savings but no investments expressed interest in learning more about investing. Media reports indicate the multi-year drive will roll out first across digital, social and out‑of‑home channels before expanding to television in the autumn. Some outlets have reported the programme could cost up to £50m over its lifetime, with an annual running cost in the region of £8–10m.

From an investor’s perspective, a stocks and shares ISA provides a tax wrapper that shelters capital gains and income from UK tax, making it a common choice for savers planning for medium-to-long horizons. Practical advice emphasised by financial advisers includes clarifying goals, assessing risk tolerance, comparing platform and fund charges, and considering ready-made portfolios or broad tracker funds linked to major indices such as the FTSE 100. Regular, small contributions and a minimum five-year investment horizon are often recommended to smooth market volatility.

If successful, the campaign could nudge a portion of dormant cash into capital markets, boosting flows to platforms, funds and listed equities over time; however, immediate effects on market prices are likely to be limited. Regulators’ involvement aims to pair nudges with consumer protection and educational content so investors understand fees, diversification and downside risks before committing capital.

Market commentators welcome increased financial literacy but caution against overstating short-term benefits. The campaign’s effectiveness will be measured by new ISA account openings, net inflows to retail investment platforms and engagement metrics from the campaign microsite. For prospective investors the sensible next steps remain the same: secure emergency savings, define objectives, compare providers and, if appropriate, start small within a stocks and shares ISA while maintaining a long-term perspective.