Stop Selling Shares to Pay Yourself — The FTSE 100 Pays 3.5% a Year While Your Capital Compounds Untouched

Imagine two ISA investors with £100,000 each. Investor A buys a FTSE 100 tracker yielding 3.5% and takes the dividends as income. Investor B buys the same tracker, reinvests all dividends, and sells £3,500 of shares each year to generate the same cash flow.

After year one, Investor A still owns all their original shares. The portfolio value may fluctuate — that is equity investing — but the number of shares owned has not changed. In year two, they receive another £3,500 (likely more, since FTSE 100 dividends have grown at roughly 5% annually over the last four decades).

Investor B has sold 3.5% of their holding. If markets rose 10% that year, fine — they sold at a profit. But if markets fell 20%, they just locked in a permanent capital loss. To generate the same £3,500, they had to sell more shares at exactly the wrong time. This is not a theoretical edge case: the FTSE 100 has fallen in roughly one year in three since 1984. The dividend investor sailed through those years collecting cheques. The total-return investor ate their seed corn.

After 20 years at 3.5% annual withdrawals, the total-return investor has sold roughly half their original share count. The dividend investor still owns every share — and each share is paying more income than it did two decades ago.

This is the part of the UK tax code that makes dividend investing inside an ISA genuinely superior. Dividends received in a Stocks and Shares ISA are completely tax-free — no income tax, no dividend tax, nothing. Outside an ISA, those same dividends face rates of 8.75% at the basic rate and 33.75% at the higher rate (2025/26 figures; rising to 10.75% and 35.75% in 2026/27).

Now consider the total-return approach outside an ISA wrapper. Selling shares triggers Capital Gains Tax at 18% (basic rate) or 24% (higher rate) on gains above the £3,000 annual exempt amount. A higher-rate taxpayer crystallising a £20,000 gain pays £4,080 to HMRC — money the dividend investor inside an ISA never pays.

Even inside an ISA, where both strategies are tax-sheltered, the dividend approach has an edge: it forces discipline. Dividends arrive on a schedule set by company boards, not by your emotional tolerance for selling into a falling market. The HMRC dividend allowance sits at just £500 — outside an ISA, the tax-free dividend buffer is nearly worthless. Inside an ISA, it is unlimited.

For more on how ISAs protect your returns, see our comprehensive ISA guide.

The total-return argument treats share sales as frictionless. They are not. Every sale incurs three costs that compound against you over decades.

The bid-ask spread. When you sell a FTSE 100 stock, the market maker takes roughly 0.05% to 0.1% between the bid and ask price. On a £100,000 portfolio, that is £50–£100 per year just to generate your income. Over 30 years of retirement, that spread cost alone consumes £1,500–£3,000 of capital — and that is before platform trading fees.

Platform trading charges. Most UK investment platforms charge £5–£12 per trade. If you sell quarterly to generate income, that is £20–£48 annually. AJ Bell charges £5 per online trade; Hargreaves Lansdown charges up to £11.95. The dividend investor pays none of this — the cash just arrives.

Market timing risk. This is the big one. The sequence of returns risk matters enormously during the withdrawal phase. Selling shares in a down year permanently impairs the portfolio's ability to recover. A study by Morningstar found that a 4% inflation-adjusted withdrawal rate fails roughly 10% of the time over 30 years when markets cooperate, but failure rates spike above 20% when the first five years include a bear market. Dividend income, by contrast, is far more stable than share prices — FTSE 100 dividends fell 44% in 2020 during COVID, but recovered within 18 months. Share prices took over two years.

The UK stock market houses some of the world's most reliable dividend payers. These are not speculative growth stories — they are cash-generating machines that have returned capital to shareholders through every crisis of the last century.

Consider the evidence. Legal & General has paid an uninterrupted dividend since the financial crisis and currently yields around 8%. British American Tobacco has raised its dividend for over 20 consecutive years. National Grid's dividend has grown every year since at least 1999 — through the dot-com crash, the global financial crisis, Brexit, and COVID. Unilever has been paying dividends since before the First World War.

A dividend-growth portfolio constructed from these names does something no total-return strategy can: it delivers a rising income stream that is largely uncorrelated with share price movements in any given year. When markets panic — as they did in March 2020, October 2008, and September 2001 — the dividend investor collects the same cheque. The total-return investor faces a brutal choice: sell at the bottom or go without income.

For a deeper look at how dividends reveal financial health, see our Free Cash Flow Explained article.

The Challenger will tell you that dividend stocks are old-economy dinosaurs: banks, oil majors, tobacco companies. Growth is where the money is made. They are half right — growth stocks have outperformed value over some periods. But they are wrong about what that means for income investors.

A total-return strategy that sells growth stocks for income is selling precisely the assets you want to keep. If a growth stock compounds at 12% annually, selling 3.5% of it each year bleeds the compounding machine. After 20 years, you have sold roughly half your position in your best-performing asset. Meanwhile, the dividend investor lets the growth stocks run and funds their income from the dividend payers — a natural separation of accumulation assets and distribution assets.

And here is the data the total-return advocates do not want to examine: the FTSE 100's total return — dividends reinvested — has delivered roughly 7–8% annualised over the very long run. Strip out dividends and the capital return alone is closer to 4%. More than half of UK equity returns come from dividends. Ignoring them is not sophisticated — it is leaving more than half your return on the table.

For investors building a balanced portfolio, our guides on dividend yield and P/E ratios provide the analytical tools to separate genuine dividend strength from yield traps.

If picking individual dividend stocks sounds like work, the UK market offers several dividend-focused ETFs that do the stock selection for you. The iShares UK Dividend UCITS ETF (IUKD) holds the 50 highest-yielding FTSE 350 stocks, currently yielding around 5.2%. The SPDR S&P UK Dividend Aristocrats ETF (UKDV) tracks companies that have grown dividends for 10+ consecutive years — a quality filter that screens out the yield traps.

These ETFs solve the biggest problem with DIY dividend investing: concentration risk. Holding 30–50 names across sectors means a dividend cut at Vodafone or Centrica does not blow a hole in your income. And at a 0.30–0.40% annual management charge, the cost of that diversification is roughly £300–£400 on a £100,000 portfolio — less than the cost of a single bad stock pick.

Inside a Stocks and Shares ISA, every penny of that 5.2% yield lands tax-free. For investors building a long-term income portfolio, dividend ETFs strip out the stock-specific risk while preserving the core advantage: income that grows without selling a single share. Our investing fundamentals guide covers the broader principles of building a UK ISA portfolio.

The Bank of England base rate sits at 3.75% today — already down from 5.25% in mid-2024. Markets are pricing further cuts. Cash savings rates, currently around 4.5% for the best easy-access accounts, will follow the base rate down. A saver with £100,000 in cash might earn £4,500 this year — and £3,000 next year if rates fall to 3%.

The FTSE 100's 3.5% dividend yield does not look spectacular next to a 4.5% savings rate. But that 3.5% grows. Over the last 25 years, UK dividends have compounded at roughly 5% annually. A £3,500 income stream growing at 5% becomes £5,700 after 10 years and £9,300 after 20. Meanwhile, that cash saver is still getting whatever the Bank of England decides to pay them — and after 2.8% CPI inflation, their real return is heading toward zero.

This is what the total-return argument cannot replicate: an income stream with an embedded growth engine. You can sell more shares each year to simulate growth, but that accelerates the portfolio depletion. Dividends grow organically because the underlying companies grow their earnings. No spreadsheet model can make selling shares do that.

Disclaimer: This article is for informational purposes only and does not constitute financial advice. You should seek independent financial advice before making any investment decisions.