UK headline CPI Inflation peaked at 11.1% in October 2022 (ONS) and has been gradually declining. Yet successive Bank of England Monetary Policy Reports warn that another energy spike could reawaken price pressures - with real consequences for cash, ISAs and investments.

Key takeaways

  • CPI is the official UK inflation measure (ONS).
  • The Bank of England's target remains 2% CPI.
  • Cash savings lose real value when inflation exceeds savings rates.
  • index-linked gilts and certain equities can offer partial hedging.
  • Energy markets are the most volatile inflation input.

How inflation hits cash

Even a 4-5% inflation rate against a 4% easy-access savings rate erodes real returns. Premium Bonds and easy-access ISAs are not immune.

How inflation hits investments

Equities historically deliver positive real returns over long periods (Barclays Equity Gilt Study), but inflation shocks can hit Growth Stocks first.

How to plan

Diversify across asset classes, include some inflation-linked exposure, and review cash holdings versus medium-term spending needs.

What this means for UK investors

Inflation is rarely linear. Spreading exposure across cash, gilts and global equities makes a portfolio more resilient to surprise spikes.

Risks to watch

  • Holding too much cash for too long.
  • Concentration in long-duration bonds.
  • Inflation-linked gilts can still fall in price.
  • Energy-driven shocks are difficult to forecast.