£20,000 in savings? Here’s how someone could aim to turn that into a £10,958 annual second income!

Earning a second income doesn’t necessarily mean doing more work. Christopher Ruane highlights one long-term approach based on owning dividend shares.

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Using money to earn more money is not exactly a new idea. But when it comes to earning a second income, many people fixate on the idea of taking on more working hours rather than exploring possible alternative ways to boost their earnings.

Buying dividend shares can be a lucrative way to generate some extra income without working for it – especially if someone is willing to take the long-term approach.

Here’s why thinking for the long term can help build wealth

That long-term approach can be powerful because of a concept known as compounding. Put simply, compounding means reinvesting dividends, so that over time they in turn earn dividends.

Compounding can be a powerful force multiplier when it comes to building wealth – and a second income stream. For example, imagine somebody compounds £20k at a rate of 8% annually. After 25 years, their portfolio should be worth close to £137k.

At an 8% dividend yield, a portfolio that size should generate a second income of around £10,958 a year.

Thinking about dividends in the right way

Is an 8% return realistic? After all, it is more than twice the current FTSE 100 yield.

Above, I talked about compounding at 8% a year. That compound annual return could come from share price gain as well as dividends. But share prices can move up or down – and dividends are never guaranteed to last at any business.

In my example, after 25 years, I was presuming an 8% yield from a portfolio diversified across multiple different shares. In today’s market I think that is achievable even sticking to blue-chip businesses.

One share to consider

One FTSE 100 share I think investors should consider for its second income generation potential is financial services firm Legal & General (LSE: LGEN). The firm’s focus on retirement-linked products strikes me as a smart strategic choice. The market for retirement savings and pensions is large, resilient, long-lasting and involves sizeable sums.

With its strong brand, large customer base and history stretching back centuries, Legal & General is well-placed to benefit from that market. It aims to grow its dividend per share each year. The share currently yields 8.4%.

What might stand in the way of future dividends? One risk I see is that the sale of a large US business could mean revenues and profits shrinking markedly.

From a long-term perspective though, I regard Legal & General as being worth investors’ consideration.

Getting on the income train

Such a plan may sound fine in theory. But only putting it into practice will move it from an idea that takes just seconds to grasp to a second income idea that has been grasped!

One useful first move would be choosing a vehicle for investing the £20k. For example, that might be a Stocks and Shares ISA, share-dealing account or trading app. Fees and costs can eat into dividend income, so it can pay to take some time to make a smart choice.

After that, that money could then be put to (hopefully) productive use in the stock market!

C Ruane has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

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