NS&I Premium Bonds 2025/26: Complete Guide to Rates, the April Cut to 3.30%, and Whether They're Still Worth Holding

Premium Bonds do not pay interest. Each £1 Bond enters a monthly prize draw run by ERNIE (Electronic Random Number Indicator Equipment). Prizes range from £25 to £1 million, with two £1 million jackpots every month. All prizes are completely tax-free — exempt from both Income Tax and Capital Gains Tax.

The annual prize fund rate — 3.60% until March 2026, then 3.30% from April 2026 — represents total prizes paid as a proportion of all eligible Bonds. It is not your personal return. A median saver holding £1,000 might win nothing in a year. Someone with the maximum £50,000 holding could expect roughly £1,650 annually at the new 3.30% rate, but actual outcomes vary wildly because prizes are random.

The mechanics: invest £25 to £50,000, wait one full calendar month for eligibility, then every Bond enters each subsequent draw. Cash out all or part at any time — funds reach your bank in 3-5 working days. You can buy for children under 16 (parent or guardian manages until they turn 16), and reinvest prizes automatically to compound your draw entries.

The distribution skews heavily toward £25 and £50 prizes. Your realistic expectation is small, frequent wins — not life-changing jackpots. Think of it as a savings account with lottery characteristics, not a lottery with savings characteristics. For a guaranteed return instead, see our <a href="/posts/cash-isas-explained-rules-rates-and-how-to-get-the-most-from-your-allowance-in">cash ISAs explained guide</a>.

NS&I offers more than Premium Bonds. Here is the full rate card as of March 2026, sourced directly from NS&I's interest rates page:

Variable-rate accounts: The Direct Saver pays 3.05% gross on up to £2 million. Income Bonds pay 3.01% gross (3.05% AER) with monthly interest from £500 minimum. The Direct ISA pays 3.50% tax-free on up to £20,000 — your full annual ISA allowance. The Junior ISA pays 3.55% tax-free with a £9,000 annual limit.

Fixed-term British Savings Bonds: The standout is the 1-year Guaranteed Growth Bond at 4.07% (Issue 88). The 5-year pays 4.05%, the 3-year 4.02%, and the 2-year 3.98%. All are taxable but locked in — if the Bank of England continues cutting rates, these fixed returns could look increasingly attractive.

The Investment Account at 1.00% is essentially a parking account. Ignore it. For better rates with limited notice periods, see our <a href="/posts/best-notice-savings-accounts-uk-march-2026-rates-ranked-from-500-down">best notice savings accounts guide</a>.

Notice the gap: NS&I's own fixed bonds at 4.07% beat Premium Bonds' 3.30% by 77 basis points. The only advantage Premium Bonds hold over NS&I's own products is their tax-free status and instant access.

Tax-free sounds good. But the Personal Savings Allowance already shelters £1,000 of interest for basic-rate taxpayers and £500 for higher-rate. Additional-rate taxpayers get nothing. Here is what matters: the after-tax return on £20,000, using the new 3.30% Premium Bonds rate versus a 4.5% best-buy savings account.

Basic-rate taxpayer (20%): The savings account generates £900 interest. The £1,000 PSA covers all of it — zero tax. Expected Premium Bonds return: £660 tax-free. The savings account wins by £240.

Higher-rate taxpayer (40%): That £900 interest exceeds the £500 PSA by £400, taxed at 40% = £160 tax bill. Net return: £740. Premium Bonds: £660 tax-free. The savings account still wins, but by only £80.

Additional-rate taxpayer (45%): No PSA. The full £900 is taxable at 45% = £405 tax. Net return: £495. Premium Bonds: £660 tax-free. Premium Bonds win by £165.

The crossover is clear. At £20,000, Premium Bonds only win for additional-rate taxpayers. For a better return on that same amount, the <a href="/posts/best-cash-isa-rates-uk-march-2026-468-easy-access-and-435-fixed-before-the">best cash ISA rates</a> currently offer 4.68% tax-free. For higher-rate taxpayers, the gap is narrow enough that the tax-free convenience and government guarantee might tip the balance — but purely on returns, a taxable account still edges it.

At £50,000 the picture shifts. A higher-rate taxpayer earns £2,250 gross from a 4.5% account, pays tax on £1,750 (after £500 PSA) at 40% = £700 tax, netting £1,550. Premium Bonds at 3.30%: £1,650 expected, tax-free. Now Premium Bonds win by £100 — and with zero tax paperwork.

For our full comparison: Premium Bonds vs Cash ISA — the maths on £20,000.

Every NS&I product carries HM Treasury's 100% guarantee with no upper limit. This is fundamentally different from high-street banks, where the Financial Services Compensation Scheme — explained in detail in our <a href="/posts/banking-guide-fscs-deposit-protection-uk-how-your-bank-savings-are-protected-up">FSCS deposit protection guide</a> — protects only the first £85,000 per person per institution (temporarily £1 million for certain life events like house sales or inheritances).

If you have £200,000 from a property sale, a bank failure could leave £115,000 unprotected. With NS&I's Direct Saver, every penny is government-guaranteed up to the £2 million account limit. That safety premium is worth accepting a lower rate — particularly if you cannot split large sums across multiple banking groups quickly.

The trade-off is real. NS&I's mandate — balancing savers' interests with taxpayer cost and broader financial stability — means it rarely tops best-buy tables. The Direct Saver at 3.05% sits well below Chase (3.70%), Chip, and other challenger banks. But NS&I is not competing on rate. It is competing on certainty.

With the Bank of England having cut from 5.25% to 3.75% since August 2023, and markets expecting further reductions, locking in NS&I's 4.07% 1-year Growth Bond now could look shrewd by December. See our fixed-rate savings bonds guide for the best rates across all providers.

Hold if you're a higher or additional-rate taxpayer with large cash savings. The tax-free status delivers genuine outperformance once your Personal Savings Allowance is used up. An additional-rate taxpayer would need a gross savings rate of 6.00% to match Premium Bonds' 3.30% after tax — that rate does not exist for easy access. Check which income tax band you fall into.

Hold if you have over £85,000 in cash. The unlimited government guarantee becomes a genuine advantage above the FSCS limit. Splitting cash across multiple banks is possible but operationally tedious. NS&I solves the problem outright.

Hold if you are saving for a child. Premium Bonds (up to £50,000, tax-free, accessible from 16) and the Junior ISA at 3.55% (up to £9,000 per year, locked until 18) are both strong. For long-term savings, the Junior ISA's guaranteed rate wins. For flexibility and gift-giving, Premium Bonds suit better.

Cash out if you're a basic-rate taxpayer with under £20,000 in savings. Your £1,000 Personal Savings Allowance already shelters your interest from tax. A savings account paying 4.5%+ delivers significantly more than 3.30%. Move your money — the rate cut makes this more urgent.

Cash out if you have not used your ISA allowance. With 8 days until the 5 April 2026 deadline, a cash ISA paying 4.5%+ tax-free beats Premium Bonds on both rate and certainty. You can always rebuy Premium Bonds after maxing your ISA. Our Cash ISA vs savings account comparison shows when the wrapper pays for itself.

The optimal strategy for most savers: Max your £20,000 ISA allowance first (whether cash or stocks and shares). Keep 3-6 months' expenses in an easy-access savings account. Then use Premium Bonds for any surplus — particularly if you are a 40% or 45% taxpayer, or if your total cash exceeds the £85,000 FSCS limit.

This article is for informational purposes only and does not constitute financial advice. You should seek independent financial advice before making any investment decisions. Rates and product terms are sourced from NS&I, Bank of England, and gov.uk as of 28 March 2026 and may change.