Government-Backed NS&I's New Fixed-Rate Savings Pay up to 4.5% Interest – Close to Topping the Tables

Government-Backed NS&I's New Fixed-Rate Savings Pay up to 4.5% Interest – Close to Topping the Tables

MoneySavingExpert (UK)
MoneySavingExpert (UK)Apr 28, 2026

Why It Matters

The products give risk‑averse savers a government‑guaranteed alternative that competes on yield, potentially reshaping the premium‑segment of the UK savings market.

Key Takeaways

  • One‑year NS&I bond offers 4.5% AER, £500‑$625 minimum
  • Five‑year bond yields 4.4% AER, comparable to market leaders
  • All deposits fully Treasury‑backed, risk‑free unless UK defaults
  • Interest taxable; annual option compounds but may increase tax bill
  • Early withdrawal prohibited; lock funds for 1‑5 years

Pulse Analysis

National Savings & Investments (NS&I) has leveraged its Treasury backing to launch fixed‑rate bonds that promise up to 4.5% annual equivalent rate (AER). By positioning these products alongside traditional high‑street banks, NS&I aims to attract savers who prioritize security over liquidity. The rates, which have risen from previous levels—4.07% for the one‑year bond and 4.05% for the five‑year bond—now sit just shy of the best offers from MBNA, StreamBank and other private lenders. This move underscores a broader trend of government‑linked institutions entering a competitive rate‑shopping arena traditionally dominated by commercial banks.

For investors, the appeal lies in the combination of safety and respectable returns. Every pound deposited is guaranteed by the UK Treasury, effectively eliminating credit risk unless the sovereign defaults—a scenario most consider highly unlikely. However, the products come with trade‑offs: funds are locked for the chosen term, and interest is subject to income tax. Choosing the annual interest option compounds earnings but may push taxpayers into higher brackets at maturity. Savers must weigh the tax implications against the convenience of monthly interest payouts offered by the Guaranteed Income Bonds.

The introduction of these bonds could pressure rival banks to tighten their own fixed‑rate offerings, especially as consumers become more rate‑sensitive in a post‑pandemic savings boom. While NS&I’s rates are marginally lower than the absolute market highs, the government guarantee provides a unique value proposition that may attract high‑net‑worth individuals seeking to diversify away from market‑linked products. Financial advisers are likely to recommend NS&I fixes as a core component of a low‑risk portfolio, complementing higher‑yield, higher‑risk assets. Overall, the launch reinforces the growing importance of safety‑first products in a landscape where interest rates remain elevated but volatility persists.

Government-backed NS&I's new fixed-rate savings pay up to 4.5% interest – close to topping the tables

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