What is an index tracker fund?
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In short: A fund that passively mirrors a market index — such as the FTSE All-Share or a global equities index — rather than trying to beat it. Tracker funds usually charge lower fees than actively managed funds and are a common way to build a diversified Stocks & Shares ISA or pension portfolio.
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An index tracker fund holds shares (or bonds) in roughly the same proportions as a chosen index. If the index rises 8%, the fund should return close to 8% minus fees and any tracking error. Because the manager is not picking individual stocks, ongoing charges are often 0.1% to 0.3% a year compared with 0.5% to 1% or more for many active funds.
In the UK, trackers are available as unit trusts, OEICs, exchange-traded funds (ETFs) and pension fund options. You can buy them inside a Stocks & Shares ISA — where gains and dividends are tax-free — or a SIPP. Outside wrappers, dividends above the £500 dividend allowance and gains above the £3,000 CGT annual exempt amount (2026/27) are taxable.
A single global equity tracker can give exposure to thousands of companies across countries and sectors, which spreads risk more than holding a few individual shares. Trackers follow the market down as well as up, so they suit long-term investors who accept short-term volatility rather than those who need certainty over the next few years.
Primary source: moneyhelper.org.uk/en/savings/investing
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