Investing £20,000 into a carefully selected range of FTSE 100 dividend shares is one practical route to building a meaningful passive income stream.
The FTSE 100 currently yields around 3% on average, but targeting 6% remains realistic by focusing on higher-yielding members of the index rather than settling for the average.
At a 6% yield, a £20,000 investment would generate £1,200 a year in passive income from the very first year, working out at approximately £100 a month.
However, investors willing to exercise patience can pursue a significantly more rewarding outcome by reinvesting dividends rather than taking the income immediately.
This approach, known as compounding, allows returns to build on themselves over time, turning a modest starting sum into a considerably larger pot.
After 20 years of compounding at 6% annually, that initial £20,000 investment ought to be worth around £64,143, which at a 6% yield would produce roughly £321 a month in passive income.
The FTSE 100 contains Britain’s biggest public companies by market capitalisation, many of which are long-established and consistently profitable businesses with strong dividend track records.
Past performance is no guarantee of future results, and a company paying dividends today is not obligated to continue doing so, making careful stock selection and portfolio diversification essential.
Shopping around for the right account type, whether a share-dealing account, Stocks and Shares ISA, or trading app, is also a sensible step given that fees can accumulate significantly over a 20-year investment horizon.
One FTSE 100 share worth considering for passive income is insurer Aviva (LSE: AV), which currently offers a 5.6% dividend yield and has seen its share price rise 81% over the past five years.
Aviva sharply cut its dividend in 2020, but has since been growing its annual payout steadily as the business has returned to a stronger financial footing.
The company has shed many of its overseas operations and acquired UK rival Direct Line, allowing it to focus more intently on its home market, where it holds a market-leading position.
That strategic focus, combined with a large customer base and deep underwriting experience, has helped Aviva generate sizeable free cash flows capable of supporting its dividend commitments.
A potential risk is that Aviva’s scale could become a liability if a smaller rival attempts to gain market share through aggressive price competition, which could pressure profit margins.
Despite that risk, the combination of a generous yield, a recovering dividend trajectory, and a dominant domestic market position gives Aviva considerable long-term appeal for income-focused investors.