The interest rate environment of the past three years has revived genuine competition between asset classes that were dormant as investment options for the better part of a decade. UK government bonds (gilts) and savings accounts both now offer yields well above zero, making the choice between them a real financial planning question rather than an academic exercise. For higher-rate and additional-rate taxpayers with significant cash holdings, the tax differences can make gilts meaningfully superior to savings accounts. This guide explains the comparison in plain terms.
Current Yield Environment (as at mid-2026)
Bank Rate reductions since mid-2024 have pulled both savings rates and gilt yields downward from their 2022–2023 peaks. As of mid-2026, with Bank Rate held at 3.75% (unchanged since December 2025):
- Best easy-access savings rates: Typically 3.5–4.0% AER from challenger banks and building societies, depending on the provider and whether notice periods apply. NS&I's Premium Bonds offer an implied rate around 3.5% (prize fund rate), but with a lottery element.
- Short-dated gilt yields (1–2 year): Approximately 3.75–4%, tracking bank base rate expectations closely.
- Medium-dated gilt yields (5–10 year): Approximately 4–4.5%, with the yield curve now relatively flat rather than steeply inverted as in 2022.
- 30-year gilt yields: Approximately 5–5.5%, reflecting the long-run neutral rate and inflation expectations.
On a gross pre-tax basis, the headline yields are broadly comparable between good savings accounts and short-dated gilts. The meaningful difference lies in tax treatment.
The Tax Difference: Why Gilts Win for Higher Earners
The critical tax asymmetry between gilts and savings accounts:
Savings account interest: Taxed as income in the year it is received. Subject to income tax at your marginal rate. For a basic rate taxpayer: 20%. For a higher rate taxpayer: 40%. For an additional rate taxpayer: 45%. The personal savings allowance (£500 for higher-rate taxpayers, zero for additional-rate taxpayers from April 2016) provides only limited relief.
Gilt income (coupon): The coupon on a gilt is taxable as income, subject to income tax at your marginal rate. So far, no different from savings interest.
The key difference — no CGT on gilts: Gilts are specifically exempt from capital gains tax for UK residents. The gain (or loss) arising from the movement in the gilt's price between purchase and disposal is not taxable. This exemption is enshrined in TCGA 1992.
This CGT exemption is transformationally important for higher and additional-rate taxpayers who:
- Buy gilts below par (below £100 face value) on the secondary market
- Receive primarily capital appreciation rather than income (because the coupon is low relative to market yields)
- Sell before maturity at a gain (or hold to maturity, receiving par)
A worked example:
Suppose a gilt with a 1% coupon (annual coupon of £1 per £100 nominal) currently trades at £90 because current market yields are above 1%. If you hold it to maturity (say, 3 years) and receive £100, you make a capital gain of £10 per £100 nominal. That £10 gain is not subject to CGT for a UK resident. Meanwhile, the £1 per year coupon is taxable as income.
Compare this to a savings account paying 4% per year: the full £4 per year per £100 is taxable as income. If you are an additional-rate taxpayer, the gilt's total effective return is meaningfully higher after tax.
The Gilt Selection Decision: Strip vs Coupon vs Index-Linked
For tax-motivated gilt purchases, the selection matters:
Low-coupon conventional gilts: Maximum CGT-exempt capital return relative to income. Ideal for higher-rate and additional-rate taxpayers whose ISA and pension headroom is fully utilised. The gain on disposal or maturity is entirely tax-free.
High-coupon gilts trading at a premium: Mostly income (taxable). These suit investors who can hold in an ISA/SIPP and are not particularly motivated by the CGT exemption, or basic-rate taxpayers with full savings allowances.
Index-linked gilts ("linkers"): Both coupon and redemption value increase with RPI. For UK residents, the RPI uplift on the principal is treated as a capital gain — and is therefore exempt from CGT. This makes index-linked gilts very tax-efficient for additional-rate taxpayers, providing inflation-protected growth that is effectively tax-free for UK residents. The catch: as discussed in inflation-planning contexts, linkers are sensitive to changes in real interest rates, which creates price volatility.
Gilt strips: Zero-coupon instruments created by separating a gilt's coupons from its redemption value. The entire return comes in the form of the discount (the difference between purchase price and par at maturity). This discount would normally be income for tax purposes, but gilts purchased in the secondary market before 26 March 1996 retained the CGT treatment on strips. More recent strips are usually taxed as income. Check the specific strip's tax status before purchasing.
When Savings Accounts Win Over Gilts
Gilts are not always better:
- Basic-rate taxpayers with unused savings allowance: The first £1,000 of savings interest (basic rate) or £500 (higher rate) is tax-free. Below these thresholds, savings accounts and gilts are equivalent (both tax-free in practice for the lower earner).
- ISA or SIPP sheltering: Inside an ISA, all income from both gilts and savings is tax-free; the CGT exemption becomes irrelevant. For ISA-sheltered cash, a competitive easy-access savings account or cash ISA may be simpler and more flexible than holding gilts.
- Liquidity needs: Savings accounts with easy access are more liquid than the gilt market for most retail investors. There is no bid-ask spread, no platform charge, and instant access. Gilts held directly must be sold through a broker; a gilt ETF or fund can be sold like a share but still settles in T+2.
- Short investment horizons: If you need the money in three months, a short-dated gilt or savings account are comparable. For very short time horizons, the transaction costs of gilts (broker commission, spread) reduce the advantage.
Gilt ETF vs Direct Purchase
For most retail and HNW investors, accessing gilts directly means opening an account with Computershare (for new issue gilts) or a stockbroker. The alternatives are:
Gilt ETFs (e.g., iShares Core UK Gilts, Lyxor UK Gilts): Provide diversified gilt exposure, traded on-exchange with LSE liquidity, and accessible in ISAs and SIPPs. However, the CGT advantage of direct gilt ownership is diluted: a gilt ETF is itself a reporting fund; disposals are subject to CGT at normal rates (the ETF does not pass through the per-gilt CGT exemption). For tax-motivated gilt investing, direct ownership is required, not an ETF wrapper.
Direct purchase through a broker: Gilts are listed on the London Stock Exchange and can be purchased via most execution-only and advisory brokers. The price you pay includes accrued interest (the "clean price" plus "dirty price" distinction); brokers and platforms vary in how clearly they present this. A financial adviser or stockbroker can assist in selecting specific gilts matched to maturity horizon and tax objectives.
NS&I: The UK government's retail savings vehicle offers Premium Bonds and fixed-term savings certificates. Premium Bond returns are free of income tax and CGT; for the right saver (typically additional-rate taxpayer), they are highly competitive on a tax-adjusted basis. Apply for the full permitted holding.
How Global Investments Can Help
Tax-efficient cash management is an important component of overall wealth planning, particularly for additional-rate taxpayers with significant cash outside ISAs and pensions. We advise clients on gilt selection, maturity laddering, and the integration of cash and near-cash holdings with the broader portfolio. Speak to our team to review your current cash and savings position.
This article is for general information only and does not constitute financial, legal or tax advice. Rules, prices and regulations change; verify current requirements with a qualified adviser before acting.