Dividend Tax vs Capital Gains Tax, Which Is Lower?

The Fundamental Difference

Dividend income and capital gains are fundamentally different in how they arise. Dividends are income paid by a company out of profits, they are declared by the board and paid to shareholders. Capital gains arise when you sell an asset for more than you paid for it. You do not usually get to choose which type of return you receive, a company either pays dividends or it does not, and the gain on a sale is whatever the market determines.

The distinction matters for tax because HMRC treats them entirely differently. Dividend income is subject to dividend tax rates (8.75%, 33.75%, 39.35%). Capital gains are subject to CGT rates (10%/20% for most assets, 18%/24% for residential property). In most cases, capital gains are taxed more lightly than equivalent dividend income, particularly at higher income levels.

Where You Can Choose

There are situations where investors can influence whether their return comes as income or capital. Accumulation funds reinvest dividends internally rather than distributing them, so the investor's return accrues as capital growth rather than income. This is sometimes called 'rolling up' income, it can convert what would have been taxable dividend income into a future capital gain instead. Whether this is advantageous depends on your income level and the tax year in which you ultimately sell.

Company directors have a genuine choice between salary and dividends (income) or retaining profits in the company for future capital growth (potentially a capital gain on sale). Pension contributions made by the company create a different outcome again. The optimal route requires modelling across multiple tax types simultaneously.

The Arithmetic at Different Income Levels

For a basic-rate taxpayer: dividend tax is 8.75% and CGT on most assets is 10%. The difference is only 1.25 percentage points, broadly similar, and the choice between holding income-generating versus growth assets is not primarily driven by this differential. Residential property CGT is 18%, noticeably higher than dividend tax at 8.75%.

For a higher-rate taxpayer: dividend tax is 33.75% and CGT on shares is 20%. The gap is 13.75 percentage points, a very significant difference. A £10,000 return from dividends costs £3,375 in tax; the same £10,000 from a capital gain on shares costs £2,000. This is why higher-rate taxpayers with a choice between accumulation and income funds, or between retained company profits and dividends, often prefer the capital gains route. For residential property at 24%, CGT is still below the 33.75% higher-rate dividend rate.

ISAs and the Answer to Which Is Lower

Inside an ISA, the answer is zero for both. Dividends received from shares held in a Stocks and Shares ISA are completely free from dividend tax. Capital gains on ISA holdings are completely free from CGT. The annual ISA subscription limit for 2026/27 is £20,000 per person. For any investor with holdings inside an ISA, the comparison between dividend tax and CGT is irrelevant, both rates are zero.

This is why long-term investors prioritise sheltering high-return investments inside ISAs. Whether those investments generate returns as dividends or capital gains, the tax treatment is identical, and identically attractive. The comparison between dividend tax and CGT only becomes relevant for the portion of a portfolio held outside an ISA.