Index fund investing has transformed UK personal finance over the last decade. The combination of low-cost platforms, the ISA tax wrapper, and decades of evidence showing passive beats active makes this the default recommendation for most UK investors.
Key UK index funds and ETFs
| Fund/ETF | Index tracked | OCF | Platform |
|---|---|---|---|
| Vanguard FTSE All-World ETF (VWRL) | ~3,700 global stocks | 0.22% | Most platforms |
| Vanguard LifeStrategy 80% | Global diversified | 0.22% | Vanguard UK |
| iShares Core S&P 500 (CSP1) | S&P 500 (US) | 0.07% | Most platforms |
| Vanguard FTSE 100 Index | UK top 100 | 0.06% | Vanguard UK |
| Invesco FTSE All-World (FWRG) | ~3,700 global stocks | 0.15% | InvestEngine |
0.07%
OCF of cheapest S&P 500 tracker in the UK — vs 1%+ for active funds
ISA
Always invest inside an ISA first to shelter gains from CGT
7-10%
Historical annual return of global equity index (nominal, long-term)
FTSE All-World vs S&P 500 vs FTSE 100
- FTSE All-World (VWRL, FWRG): Most diversified — ~3,700 companies across 49 countries. The default recommendation for UK investors who want global diversification without home bias.
- S&P 500 (CSP1, VUAG): 500 largest US companies. Higher historical returns than FTSE All-World but more concentration in US equities. ~65% of FTSE All-World is US anyway.
- FTSE 100: UK's 100 largest companies. Historically underperformed global indices. Heavy in financials, energy, and mining. Avoid as your only holding.
💡 Always use an ISA wrapper first
Capital gains above £3,000/year (2026/27 annual exempt amount) are taxed at 18-24%. Dividend income above £500 is taxed at 8.75-39.35%. Inside an ISA, both are completely tax-free. Open an ISA before opening a taxable general investment account.
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