The Hidden Currency Tax: How Unhedged Global Funds Are Quietly Adding or Removing 1–2% From Your ISA Returns Each Year
When sterling moves against the dollar, euro, or yen, UK investors in unhedged global funds absorb that currency swing directly — either as a quiet bonus or a silent drag of 1–2% annually. Most investors in HSBC, Vanguard, and iShares global funds have no idea whether currency is currently working for or against them. This article quantifies the exposure, compares hedged and unhedged fund versions, and explains when currency hedging genuinely earns its cost.