Increased interest rates for NS&I’s fixed-term Bonds from today

• New Issues of 1, 2, 3 and 5-year fixed-term British Savings Bonds on sale today with increased interest rates
• Guaranteed Growth and Guaranteed Income Bonds options available
• A new Issue of 3-year fixed-term Green Savings Bonds goes on sale today at 4.45% gross/AER

NS&I has today increased interest rates for savers, with new Issues of its 1, 2, 3 and 5-year fixed-term British Savings Bonds - Guaranteed Growth Bonds (GGB) and Guaranteed Income Bonds (GIB) - going on sale, alongside a new Issue of 3-year fixed-term Green Savings Bonds. The new Issues will be available to both new and maturing customers.

Today’s rate increases reflect changes in the wider savings market and will help NS&I to meet its Net Financing target while continuing to balance the interests of savers, taxpayers and the broader financial services sector.

Andrew Westhead, NS&I Retail Director, said: “We regularly review our products to ensure they reflect current market conditions, and today’s increases respond to changes in the fixed-term savings market.

“Our fixed-rate Bonds offer savers the choice of different term lengths with the certainty of knowing the interest rate they will receive over the full term, alongside the reassurance that all money invested with NS&I is 100% secure, backed by HM Treasury.”

British Savings Bonds – Guaranteed Growth Bonds and Guaranteed Income Bonds

The new interest rate on the 1-year Growth option is 4.69% gross/AER, and the Income option is 4.60% gross/4.69% AER.

The new interest rate on the 2-year Growth option is 4.67% gross/AER, and the Income option is 4.58% gross/4.67% AER.

The new interest rate on the 3-year Growth option is 4.65% gross/AER, and the Income option is 4.56% gross/4.65% AER.

The new interest rate on the 5-year Growth option is 4.55% gross/AER, and the Income option is 4.46% gross/4.55% AER.

British Savings Bonds (GGB and GIB) are available to customers wanting a guaranteed interest rate for fixed terms of 1, 2, 3 or 5 years. Funds cannot be withdrawn early with fixed-term accounts. Savers will need a minimum investment of £500 and can invest a maximum of £1 million per person in each Issue. After the fixed-term period, savers will have the choice to withdraw their cash or reinvest into a new term.

Green Savings Bonds

The new Issue of Green Savings Bonds is on sale with immediate effect and pays 4.45% gross/AER fixed-rate over a 3-year fixed-term. 

The minimum investment in Green Savings Bonds is £100, with a maximum limit of £100,000 per person for each Issue. Investors need to be aged 16 or over to purchase the Bonds. The full amount deposited will be held for three years and cannot be withdrawn during this time.
Green Savings Bonds are used alongside gilts to raise funds for green projects as part of the UK Government Green Financing Framework, which was updated in November 2025 to include nuclear energy projects.

The amount of annual funding required through Green Savings Bonds is agreed between HM Treasury and NS&I, alongside gilts issued by the Debt Management Office (DMO), as part of the Government’s Green Financing Framework.

New interest rate product summary

British Savings Bonds

Green Savings Bonds

Notes to Editors

1. NS&I is one of the largest savings organisations in the UK, offering a range of savings and investments to more than 24 million customers. All products offer 100% capital security as NS&I is backed by HM Treasury.
2. AER stands for Annual Equivalent Rate and enables the comparison of interest rates from different financial institutions and across different products on a like-for-like basis. It shows what the notional annual rate would be if interest was compounded each time it was credited or paid out. Where interest is credited once a year, the gross rate quoted and the AER will be the same.
3. The gross rate is the rate of interest paid before the deduction of UK Income Tax.
4. Guaranteed Growth Bonds are a lump sum investment that earns a fixed rate of interest over a set period of time called an ‘investment term’. Guaranteed Growth Bonds are designed to be held for the full term. Interest is calculated daily and paid when the product matures. The interest earned will count towards taxable income in the tax year the Bond matures if the individual’s threshold has been met.
5. Guaranteed Income Bonds are a lump sum investment that pays out monthly income at a fixed rate of interest over a set period of time (called ‘investment term’). Interest is calculated daily and is paid into the customer’s nominated bank account.
6. Green Savings Bonds were launched in 2021 to enable savers to help fund green government projects across the UK. Green Savings Bonds are separate to NS&I’s Net Financing target set by HM Treasury each year.
7. Net Financing is the measure of the net change of NS&I funds, meaning total inflows from deposits, retention of maturing monies and capitalised accrued interest, less the total outflows from withdrawals and interest or Premium Bonds prize draw payments. A positive Net Financing figure represents a positive contribution to government financing.
8. The Net Financing target for 2026-27 is £15 billion (+/- £4 billion).
9. Information on NS&I’s on sale products can be found here.
10. NS&I photography and logos are available to download here.