Millions of Britons are facing a fresh tax hit within days as new dividend tax rates come into force, with some set to pay hundreds of pounds more each year. From April 6, 2026, dividend tax rates for basic and higher rate taxpayers will rise by two percentage points, leaving investors and business owners with higher bills on income earned outside ISAs and pensions. The basic rate will increase to 10.75% and the higher rate to 35.75%, while the additional rate remains unchanged at 39.35%.

Analysis from investment platform AJ Bell suggests taxpayers could face an extra bill of around £390 on £20,000 worth of dividends compared to this tax year. Charlene Young, pensions and savings expert at AJ Bell, said: "From April 6, 2026, basic and higher rate taxpayers face an extra tax bill of £390 on £20,000 worth of dividends compared to this year."

The changes are the latest in a long line of adjustments to dividend tax, with rates and allowances tightened repeatedly over the past decade. At the same time, the tax-free dividend allowance has been slashed from £2,000 in 2023 to just £500 today.

This combination has dragged millions more people into paying the tax. Figures from HMRC show around 3.7 million people are expected to pay dividend tax this year, more than double the number in 2021/22. The latest rise is expected to generate an extra £280 million in the next tax year, climbing to nearly £1.4 billion annually by the end of the decade.

Before 2016, many basic rate taxpayers paid no dividend tax at all due to a tax credit system. Now even relatively modest investors face growing bills.

"To put it in context, a basic rate taxpayer with £10,000 of dividends a year would have paid no tax in 2015," Ms Young said. "From 6 April they'll be handing over £1,021 in tax on that income."

Higher rate taxpayers have seen an even sharper increase, with their effective rate rising significantly over the same period.

The changes will also hit company directors who rely on dividends to draw income from their businesses.

Experts say rising dividend tax makes alternative strategies, such as pension contributions through a company, more attractive because they can reduce corporation tax and avoid income tax and National Insurance.

In one example, a higher-rate taxpayer who contributes £30,000 into a pension rather than taking it as dividends could save more than £15,000 in tax.

There are still ways to reduce the impact, particularly by using tax-efficient accounts. The annual ISA allowance currently stands at £20,000, allowing individuals to shield investments from tax, while couples can effectively double that. Pensions also offer upfront tax relief, although funds are typically locked away until later in life.

Ms Young said making the most of these allowances is increasingly important as dividend tax continues to evolve.

She said: "The annual ISA allowance is currently £20,000, so you can potentially move £40,000 into your ISA before the latest tax hike starts to bite by using this year's allowance now and next year's as soon as the new tax year starts in April. You can do this using a transaction called 'Bed and ISA.'

"If you have a spouse who also hasn't used their ISA allowance this year and doesn't have their own investments outside an ISA, you can double this allowance and shift your portfolio away from tax more rapidly."

However, she pointed out: "It's important to keep an eye on any capital gains you have stored up. Moving investments into ISAs might mean you crystallise these gains, using up your remaining capital gains tax-free allowance.

"You can transfer investment to your spouse on a 'no gain, no loss' basis before they are then sold to fund ISAs for the year and this will use your spouse's own capital gains allowance."