NS&I: National Savings & Investments — 2026/27 Guide
NS&I is the UK government's own savings organisation, best known for Premium Bonds, offering products backed 100% by HM Treasury with no upper protection limit. This guide covers the main NS&I products, how they are taxed, and how they compare to ordinary bank savings.
National Savings and Investments is a state-owned savings organisation, operating on behalf of HM Treasury, that offers savings and investment products directly to UK savers. It is one of the largest savings providers in the country and is known above all for Premium Bonds, but it also offers a range of straightforward interest-paying accounts and fixed-term bonds.
The Treasury Guarantee
Every penny held with NS&I is backed by HM Treasury, meaning there is no cap on the amount that is protected, unlike money held with commercial banks and building societies, which is protected up to £85,000 per person per institution under the Financial Services Compensation Scheme (FSCS). This makes NS&I a common choice for savers with balances well above the FSCS limit who want to avoid spreading money across many separate institutions.
Premium Bonds
Premium Bonds work differently from ordinary savings. Rather than paying interest, each eligible £1 bond number is entered into a monthly prize draw, with tax-free prizes ranging from £25 to £1 million. NS&I publishes an overall "prize fund rate", representing the average return across all Premium Bond holders, but any individual saver's actual return depends entirely on luck and could be nothing at all in a given month, or well above the average rate.
Direct Saver & Income Bonds
NS&I also offers straightforward interest-paying accounts such as Direct Saver and Income Bonds, which work much like an easy-access savings account with a bank: you earn variable interest on your balance, with no fixed term and generally easy access to your money, managed online, by phone or by post rather than through a branch network.
Green Savings Bonds
Green Savings Bonds are a fixed-term product where the funds raised are earmarked by the government toward projects supporting the UK's transition to a greener, lower-carbon economy, such as renewable energy and clean transport. Savers receive a fixed interest rate for the term of the bond, in exchange for committing not to withdraw funds until maturity.
Tax Treatment
Premium Bond prizes are entirely tax-free, however large, and do not need to be reported to HMRC. Interest earned on NS&I's other savings products, such as Direct Saver, Income Bonds and Green Savings Bonds, is taxable in exactly the same way as interest from any bank or building society, using your Personal Savings Allowance and, where applicable, the starting rate for savings.
Comparing NS&I Rates
NS&I sets its own rates independently of any single high street bank, balancing its role in supporting government funding with the need to remain broadly competitive for savers. Rates can move up or down relative to the wider best-buy savings market, so it is worth comparing NS&I products directly against other providers rather than assuming government backing automatically means the best return.
National Savings and Investments (NS&I) is a UK government-backed savings organisation that offers a range of savings and investment products directly to the public, with deposits ultimately backed by HM Treasury rather than the Financial Services Compensation Scheme (FSCS).
Is my money 100% safe with NS&I?
Yes, in the sense that all deposits with NS&I are backed by HM Treasury, meaning there is no upper limit on the amount protected, unlike the £85,000 per person, per banking institution limit that applies under the FSCS for money held with banks and building societies.
How do Premium Bonds work?
Premium Bonds do not pay interest. Instead, each £1 bond number is entered into a monthly prize draw, with tax-free prizes ranging from £25 up to £1 million, and the overall "prize fund rate" reflects the average return across all bondholders, though individual luck varies enormously.
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Are Premium Bond prizes taxable?
No, Premium Bond prizes are entirely tax-free and do not need to be declared to HMRC, regardless of the size of the prize or your other income.
Is interest on NS&I savings accounts taxable?
Yes, interest from products like NS&I Direct Saver and Income Bonds is taxable in the same way as interest from any other bank or building society account, and is covered by your Personal Savings Allowance and starting rate for savings where applicable.
What are Green Savings Bonds?
Green Savings Bonds are a fixed-term NS&I product where the money raised is earmarked by the government to help finance projects supporting the UK's transition to a lower-carbon economy, while offering savers a fixed interest rate over the bond term.
Can I hold an NS&I ISA?
NS&I has offered a Direct ISA (a cash ISA) at various times, and if available it works like other cash ISAs, using your annual ISA allowance and paying interest tax-free, with the Treasury guarantee applying in the same way as NS&I's other products.
How do NS&I interest rates compare to high street banks?
NS&I rates move independently of any single bank and are set with reference to the wider savings market and government funding needs, so they can be more or less competitive than top best-buy rates at any given time — it is worth comparing NS&I products against the wider market rather than assuming they are always the best (or worst) option.
What is the minimum and maximum amount I can hold in Premium Bonds?
You can buy Premium Bonds from as little as £25, and the maximum total holding per person is £50,000, with each £1 bond number giving you one entry into the monthly prize draw.
How easily can I withdraw money from NS&I products?
Premium Bonds and easy-access accounts like Direct Saver and Income Bonds can typically be cashed in at any time with no penalty, while fixed-term products such as Green Savings Bonds generally tie up your money until maturity, so check the terms of each product before you invest.
Disclaimer:NS&I interest rates, prize fund rates and product availability can change; check the current position at nsandi.com. This guide is general information, not financial advice. Always seek independent professional advice for your specific situation.
