Introduction to investment bonds and gilts

On the investment risk scale, bonds – sometimes referred to as fixed income investments – typically sit between cash and shares. Bonds however, come in a variety of guises. We look at what you need to know.

The value of investments can fall as well as rise and you could get back less than you invest. If you’re not sure about investing, seek independent advice.

What you’ll learn:

  • How corporate bonds and gilts differ.
  • What risks are involved in bond investing.
  • What you can expect by way of returns.

On the investment risk scale, bonds – sometimes referred to as fixed income investments – typically sit between cash and shares. Bonds however, come in a variety of guises. We look at what you need to know.

In essence, bonds are IOUs issued by governments and companies looking to raise cash. When you invest in a bond, you’re basically loaning a government or company money for a set period of time – usually a number of years. The deal is that in exchange for handing over your cash, you earn a regular fixed rate of interest, known as a ‘coupon’ and when the bond’s life comes to an end and it reaches maturity, your original capital should be repaid in full. The main risk with bond investing is that the issuer could get into financial trouble and find it can’t meet its interest payment obligations, or worse, it goes under and investors lose all of their money as a result.

After they’re initially issued, bonds can trade on the secondary market and swap hands between investors. The price at which they’re bought and sold will generally be determined by two factors – interest rates and how attractive the issuer is, certainly in terms of their solvency.

Bear in mind that these bonds are different to savings bonds (which are usually fixed term bank and building society accounts). Savings bonds are covered by the UK's Financial Services Compensation Scheme (FSCS) but these bonds aren’t. The FSCS currently provides cover of up to £85,000 per person, per institution in the event that the bank or building society issuing them becomes insolvent.

Government and corporate bonds have no such protection

Investors can either invest directly into a bond or via a bond fund, which will hold a wide variety of fixed income assets to help spread their risk. Aside from making up part of a diversified portfolio, bonds have a number of attractions. They tend to be, historically at least, far less volatile than shares and offer a steady income stream. They may also suit investors nearing retirement who want to move away from riskier assets like equities and retirees looking to yield an income from their wealth, but it’s important to understand that like equities they too can fall in value.

Gilts and government bonds

In the UK, government bonds are called Gilts, in the US government bonds are known as Treasury Bills, or T-Bills, while German federal bonds are referred to as Bunds. In the UK the government also issues Index-Linked Gilts and the interest they pay increases in tandem with the Retail Price Index, to keep in line with the pace of inflation.

Gilts are widely viewed as being among the safest type of bond. However the interest rate, or yield, available from Gilts is usually quite low – as with all investments, to enjoy potentially higher returns, you need to take on more risk. But a loan to a stable government with a strong economy should help to keep your asset allocation reasonably well spread if you already hold other types of investment.

Corporate bonds

Corporate bonds are issued by businesses looking to drum up capital, usually to help with things like expanding into a new market, or to develop some area of the firm. While the interest rate offered by corporate bonds will typically be higher than Gilts, they come with more risk, given that a company is more likely to default on payments than a government. Permanent Interest Bearing Shares (PIBS) are a lesser-known type of bond and are issued by building societies. They’re listed on the London Stock Exchange (LSE) and normally have no redemption date. Some have a 'call' date, which means the building society has the option to redeem the PIB on that date if they wish. The interest payment is usually paid in two equal annual instalments.

Credit ratings

You can get some idea of how safe or reliable a bond is perceived to be by its credit rating. If you plan to buy individual bonds – as opposed to investing via a fund – credit ratings are worth researching at the outset and monitoring over the duration of your investment.

The rule of thumb is the lower the credit rating, the higher the rate of interest offered. But, equally, with a lower credit rating, comes a higher level of risk.

Credit ratings are worked out by specialist credit rating agencies – such as Standard & Poor's and Moody's. The ratings are an assessment of the risk of a company or government not paying back its debt. Investors must take on board that a credit rating (however high) doesn’t guarantee the investment is safe. Some so-called ‘high-yield’ bonds, offer a higher rate of interest but they come with much more risk and are often referred to as ‘junk bonds’.

In terms of ratings, bonds with the most solid appraisal are labelled 'AAA'. Anything from this level down to ‘BBB’ is classified as investment grade and deemed to be lower risk. Bonds given a B and BB rating are classified as 'high yield' and described as speculative, with a high risk of default, while those rated C, CC and CCC, are even riskier.

Those rated D are 'high yield' with a warning that there's a default risk with the bond issuer being unable to pay back debt, in S&P's opinion. This makes it extreme high risk.


Like all investments, bonds come with risks and you could lose money. Beyond the risks posed by the issuer, bonds are very sensitive to where interest rates are and the direction they’re likely to be headed. For example, when interest rates fall, the fixed rate of income or coupon on offer becomes far more appealing and bond prices rise. However the exact opposite is true when rates rise. Bonds, also suffer during periods of inflation for similar reasons due to the fixed rate of income they provide and vice versa during deflationary periods.

However bond investors are also more protected when it comes to getting their money back than shareholders in a company. This is down to the fact that were a company to go bust, bondholders have preferential treatment to be paid first before shareholders, who receive only what is left after all creditors have been paid. This doesn't mean that the investment is guaranteed if the company does go into liquidation; as there may be no money left to pay bondholders.

An alternative way to get invested

If you have at least £5,000 to invest but want us to manage the investments for you, you might want to consider using our Plan & Invest service. Designed to take the time and hassle out of investing, if we think that investing is right for you, our experts create and manage a personalised Investment Plan, leaving you free to do what matters to you. Find out more about Plan & Invest.

You may also be interested in

The value of investments can fall as well as rise. You may get back less than you invest.

Investment Account

A fully flexible way to invest

A flexible, straightforward account with no limits on the amount you can invest.

Cash and bonds

Whether you view your money as nothing more than the means to an end or the ultimate security blanket, one thing's for sure, you need to look after it.

Investments Explained

You can choose from thousands of investments to build a portfolio to match your needs, and with our expert insight, tools, tips and more, we can help guide you on your investment journey though we cannot advise you on investments that might be suitable for you.