How Investing £20,000 In Legal & General (LSE: LGEN) Could Build £926 In Monthly Passive Income

Legal & General Group (LSE: LGEN) is attracting fresh attention from income-focused investors, thanks to a dividend yield that stands among the highest in the FTSE 100.

The financial services giant currently offers a dividend yield of 7.1%, more than double the broader FTSE 100 index yield of 3%, making it a standout option for those seeking substantial passive income.

For investors with £20,000 to deploy, the maths are straightforward enough in the near term, with that sum generating approximately £1,420 in dividend income in the current financial year alone.

The more compelling case, however, involves reinvesting that dividend income rather than taking it as cash, allowing the power of compounding to dramatically amplify returns over time.

Using a consistent average yield of 7.1% over a 30-year period, an initial £20,000 investment with all dividends reinvested would grow to a final pot of approximately £156,572, without a single additional penny contributed.

At that point, assuming the yield remained constant, the resulting portfolio would deliver a monthly second income of around £926, a figure that puts the strategy well ahead of simpler alternatives.

By comparison, a FTSE 100 tracker fund delivering the index’s average 3% yield would generate just £287 per month under the same compounding approach, illustrating the significant gap that higher-yielding individual stocks can create.

Of course, dividend yields are never fixed, rising and falling with share price movements, and no company can ever guarantee the continuation of its dividend payments from one year to the next.

Legal & General operates in a highly competitive financial services market, and a prolonged economic downturn could lead consumers to delay long-term saving decisions, directly pressuring the company’s earnings and its capacity to return cash to shareholders.

This is precisely why experienced investors tend to build a diversified basket of dividend-paying stocks, rather than relying on any single company, with the principle being that stronger performers can compensate for those temporarily underperforming.

The FTSE 100 itself provides a natural hunting ground for income investors, home to some of Britain’s largest and most established businesses with long track records of returning cash to shareholders through consistent dividend programmes.

While individual stock-picking carries greater risk than simply buying a tracker fund, the potential income rewards over a multi-decade horizon can be considerably more attractive for those willing to do the research and maintain the discipline to reinvest.

Crucially, none of the projections outlined here require additional contributions beyond the original £20,000, underscoring just how powerfully compounding can work when left to run over a sufficiently long time horizon.