How reinvesting dividends has affected Isa returns since 1999

David Brett

David Brett

Investment Writer

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Reinvesting dividends is one of the most powerful tools available to boost returns over time. Investors in the FTSE 100 would certainly have noticed the difference over the last 18 years.

For instance, if you had invested £1,000 on 31 December 1999 in the FTSE 100, the capital growth would have produced a notional return of £204 (by November 2017). Annually, that represents a growth rate of just 1.1%. But the picture changes again once dividends and the miracle effects of “compounding” are included. By reinvesting all dividends, the same £1,000 investment in the FTSE 100 would have produced a notional return of £1,193, representing annualised growth of 4.6%.

In percentage terms, it’s the difference between your money growing by 20.4%, without dividends reinvested, or 119.3% with dividends reinvested.

The reason for this stark difference in returns is the compounding effect, where you earn returns on your returns. This can snowball over time to produce far more than you might expect.

For the calculations we have used a timeframe starting at the end of 1999 when the market was at a high. It was also the first year of Isas, or Individual Savings Accounts. Isas are a popular way to invest and make dividend reinvestment more tax efficient. Isas can be used to hold shares, bonds or funds, or for cash savings (more is explained below).

The chart below illustrates the effect dividend reinvestment has on your investment over time. Starting off at the same base the investment in the total return index grows quicker as the years go on.

The power of dividend reinvesting

Balance (£)


Please remember past performance is not a guide to future performance and may not be repeated. The value of investments and the income from them may go down as well as up and investors may not get back the amounts originally invested.

Source: Schroders. Thomson Reuters data for the FTSE 100 and the FTSE 100 Total Return (including dividends) correct as at 21 November 2017. Indexes have been rebased to 1000 to provide accurate comparison the converted into sterling returns.

Why dividends are important

Low interest rates, part of the measures deployed by central banks to revive flagging Western economies following the global financial crisis, have driven down yields on more traditional sources of income such as government bonds (gilts) and savings accounts.

For instance, the UK interest rate is currently 0.5% and the yield on a 10-year gilt is 1.29%, according to Thomson Reuters data. Both were more than 5% in 1999.

By comparison, the dividend yield on the FTSE 100 is currently 3.9%, which is why income-hungry investors have turned their attention to stockmarket dividends.

How dividend reinvestment can be so effective?

When purchasing a share, investors can elect how they will receive any future dividends. They can choose to receive cash, referred to as income, or use that money to repurchase more company shares, which is known as accumulation.

Investors must elect to repurchase (accumulate) more shares to trigger the start of a process Albert Einstein called “the eighth wonder of the world”: the miracle effect of compounding.

Compound interest, put simply, is interest on interest and it can help an investment grow at a faster rate. By reinvesting dividends, you give your stock holding the potential to earn even more dividends in the future.

Beware of the dividend trap

It is important to remember companies do not have to pay dividends and they can order a cut, or even cancel them, at any time.

Some companies even borrow money to pay dividends, to keep investors happy. This is not always a sustainable approach.

Borrowing money to pay a dividend could be a symptom of a company with a weak balance sheet. It is advised that investors do their due diligence before they make any investment.

Nick Kirrage, Fund Manager, Equity Value, and a blogger on The Value Perspective, said:

“Dividend reinvestment is one of the most powerful investment tools available. As our research shows, the potential difference to the rate of return dividend reinvestment makes could be substantial.

“In an era where interest rates are so low investors need to be aware of relatively simple investment techniques that can help them build up their returns. Dividend reinvestment is a simple technique.

Over time, those seemingly small amounts reinvested can grow into much bigger sums if you use them to buy even more shares that pay dividends.

“Investors need to do their research and make sure the company they are investing in can afford to pay their dividends on a sustainable basis. Your original capital is also at risk, so it pays to be picky.

“As a way of building up your investments dividend reinvestment can be powerful.”

What is an Isa?

‘Isa’ stands for Individual Savings Account. It is a tax-efficient account into which anyone over the age of 18 can save up to £20,000 a year and withdraw the proceeds, at any time, tax-free. They can elect to keep their savings in cash and earn interest or they can try to get better returns and invest in stocks and shares.

There are pros and cons to both. If you leave your money in cash then up to £85,000 is protected by the Financial Services Compensation Scheme (FSCS). Cash returns have historically been lower but they provide more assurance.

Investing your money into financial markets might offer the potential of higher returns but it also comes with the risk that you could lose all your money.