SIPP dividend tax: what is free, and what is not

Ask most brokers whether dividends in a SIPP are taxable and you get a one word answer. No.

Right as far as it goes. But money leaving a SIPP is taxed, and if you hold US shares there is a second question about what gets withheld before the dividend ever reaches you. Neither of those fits in the one word answer, and both are worth money.

While the money stays in the SIPP, nothing is taxed

A SIPP is a UK registered pension scheme, and the income it generates is exempt from tax. In practice:

• No UK dividend tax on the dividends your holdings pay
• No capital gains tax when you sell
• Nothing to declare on a self assessment return
• No effect on your £500 dividend allowance, which stays intact for holdings you keep outside a pension

That last point is the one people underuse. Your dividend allowance is a fixed £500 for 2026/27 and it did not move in the Autumn Budget. Every dividend you shift into a SIPP frees allowance for the holdings you cannot shelter.

The rates outside a wrapper went up this April. From 6 April 2026 the ordinary rate is 10.75% and the upper rate is 35.75%, up from 8.75% and 33.75%. The additional rate stayed at 39.35%. A higher-rate taxpayer with £3,000 of unsheltered dividend income now hands over about £894 a year. In a SIPP that is nothing.

Dividends do not count towards your annual allowance

This comes up constantly, and the confusion is fair, because "allowance" is doing two different jobs.

The annual allowance caps what goes in: your contributions plus your employer's, £60,000 a year for most people. Dividends, interest and growth generated inside the pension are not contributions.

So a £150,000 SIPP yielding 5% throws off £7,500 a year and uses none of your annual allowance. You could reinvest all of it and still contribute your full £60,000 on top. There is no version of this where dividend income triggers an annual allowance charge.

It is taxed on the way out

This is where "tax free" stops being the whole story.

Money leaving a SIPP is taxed as income. You can normally take 25% as a tax free lump sum, capped at £268,275. The other 75% is taxed at your marginal rate when you draw it, the same as salary.

So a SIPP does not make dividend income tax free. It turns it into pension income and defers the bill, which for most people also shrinks it, because you draw a pension at a lower marginal rate than you earned at. Pay in at 40%, take a quarter out tax free, draw the rest at 20%, and the arithmetic is strongly in your favour. Pay in at 20% and draw at 20% and the gain is much thinner, resting almost entirely on that tax free quarter.

There is also the access problem. You cannot touch a SIPP until 55, and that becomes 57 in April 2028. An ISA has no such lock. If you need the income before then, the SIPP's shelter is worth nothing to you.

US shares: where a SIPP genuinely beats an ISA

A US company withholds tax on dividends before they leave the US. The default is 30%. Filing a W-8BEN, which every UK broker asks for, cuts that to 15% under the UK and US tax treaty.

In a SIPP the rate can be 0%. The treaty gives a qualifying pension scheme full exemption, and a UK registered pension scheme qualifies. Your ISA does not. An ISA holding US shares pays 15% and cannot reclaim a penny of it.

On a portfolio yielding 3% from US shares, that 15% costs 0.45% a year, permanently. It is larger than most platform fees.

Two conditions attach.

Your broker has to be set up for it. The exemption is claimed at scheme level rather than by you, and not every broker's nominee structure supports it. Trading 212 states that for eligible US dividends held within a SIPP it applies a 0% withholding rate, with a caveat that some US securities fall outside that treatment. AJ Bell does not require an individual W-8BEN in its SIPP at all, because the IRS recognises the scheme directly. Hargreaves Lansdown does the same. If your US shares sit in a SIPP elsewhere, check rather than assume.

It applies to shares you hold directly, not to what a fund holds. An Irish-domiciled ETF tracking the S&P 500 pays 15% US withholding at fund level, under the treaty between Ireland and the US. That happens inside the fund, before any distribution reaches your SIPP, and no wrapper recovers it. Buy the underlying US shares and the SIPP exemption applies. Buy them through a fund and it does not.

Other countries are less forgiving. Several European ones deduct at source, and a SIPP recovers little or nothing without a reclaim process most brokers will not run for you. Switzerland and France are the usual complaints. The US case is the clean one, and the only one I would restructure a portfolio around.

UK REITs: any wrapper beats no wrapper

UK REITs pay most of their income as a property income distribution, or PID, and a PID is not a dividend for tax purposes. It is property income, and the REIT deducts 20% before paying it out.

A UK registered pension scheme is exempt. Hold the REIT in a SIPP and the PID arrives gross. Hold it in a general investment account and a fifth of it is gone before you see it, with more to pay if you are a higher-rate taxpayer.

That gap is about to widen. The Autumn Budget created separate rates for property income from 6 April 2027: 22% basic, 42% higher, 47% additional. PID withholding follows the basic rate, so it moves from 20% to 22%.

An ISA receives PIDs gross too, so the SIPP has no edge here. What matters is having a wrapper at all. If you hold UK REITs unsheltered, that is the first thing to fix, and on current numbers it is the largest single tax saving available to a UK dividend investor.

What this changes in practice

Put US dividend payers in the SIPP and UK dividend payers in the ISA, if you have to choose between them. The US holdings get a 15 point advantage in the SIPP that they cannot get anywhere else. UK holdings are sheltered equally by both, so they belong in the wrapper with better access.

Hold US shares directly rather than through a fund, if the treaty exemption is why you are buying them.

Keep REITs inside a wrapper, either one.

And do not treat the shelter as the end of the calculation. The tax you avoid on the dividend is real. The tax you pay on the withdrawal is also real, and for a basic-rate taxpayer who will still be a basic-rate taxpayer in retirement the two sit closer together than the marketing suggests. Our ISA versus SIPP guide works through where that line falls.

What this looks like on a real holding

John is 45, a higher-rate taxpayer, and holds £5,000 of Johnson & Johnson and £3,000 of Exxon Mobil. He plans to leave them alone for twelve years, which takes him to 57 and the earliest age he could touch a pension.

These are not the only shares he owns, which matters more than it sounds. The £500 dividend allowance is per person across everything you hold, not per account, and anyone with a portfolio worth the name has already spent it elsewhere. So assume it is gone before these two holdings pay a penny.

On the figures as they stand in August 2026, J&J yields 1.97% and Exxon 2.47%. Both have raised their dividend every year for decades, at 5.5% and 3.1% a year respectively across the last seven. Hold those growth rates and his £8,000 pays £173 in year one, £281 in year twelve, and £2,668 across the whole period before any tax.

Three wrappers, three different answers, and the gaps have different causes.

The SIPP beats the ISA by £400, entirely on withholding. Both companies are American and both withhold 15% before the money leaves the US. A SIPP is exempt under the treaty. An ISA is not, and cannot reclaim it.

The ISA beats the general account by £554, entirely on UK dividend tax. This is the part worth getting right, because most write-ups get it wrong. John does not pay 35.75% on top of the 15% already withheld. He gets foreign tax credit relief for the US tax, so the 15% comes off his UK bill and he pays the remaining 20.75%. Out of every £100 of gross dividend he keeps £64.25.

The SIPP's lead does not survive the withdrawal. Take the £2,668 out at 57 as a basic-rate taxpayer, a quarter tax free and the rest at 20%, and he keeps £2,268. The same figure as the ISA, to the pound. At higher rate he keeps £1,868, which is behind the ISA but still comfortably ahead of the general account.

So the ranking that holds up is: get it into a wrapper, either wrapper, and prefer the SIPP for US shares specifically. The SIPP's broader case rests on tax relief going in, which is a different argument from this one.

Two things flip the general account back to level with the ISA, and both are worth checking against your own position. If John were a basic-rate taxpayer, his 10.75% UK charge would be smaller than the 15% already withheld, foreign tax credit relief would wipe it out, and the excess is not refundable, so he would keep the same £2,268 as the ISA. And if this £8,000 genuinely were everything he held, his dividends would peak at £281 a year, stay inside the £500 allowance, and again land at £2,268.

Both of those are real cases. Neither is the common one.

Frequently asked questions

Are dividends in a SIPP taxable?

Not while they stay in the SIPP. Dividends paid into a SIPP are free of UK dividend tax, they do not use up your £500 dividend allowance, and you never declare them. Tax applies later, when you take money out: 25% is normally tax free and the rest is taxed as income at your marginal rate.

Do SIPP dividends count towards the annual allowance?

No. The annual allowance limits what you and your employer pay in, currently £60,000 a year for most people. Dividends, interest and growth generated inside the pension are not contributions, so a high-yield SIPP portfolio cannot push you over the limit no matter how much income it throws off.

Do I pay US withholding tax on US dividends in a SIPP?

Usually not on individual US shares. The UK and US tax treaty gives a qualifying UK pension scheme a 0% rate, against the 15% an ISA pays. Whether you actually get 0% depends on your broker having the right arrangements in place. Trading 212, AJ Bell and Hargreaves Lansdown all pay eligible US dividends gross into a SIPP.

Are REIT dividends taxed differently in a SIPP?

Yes. Property income distributions from UK REITs are paid after 20% withholding tax to most shareholders, rising to 22% from 6 April 2027. A UK registered pension scheme is exempt, so a SIPP receives the PID gross. An ISA also receives it gross, but a general investment account does not.

Is a SIPP better than an ISA for dividends?

For pure tax on the dividend, a SIPP and an ISA both shelter UK dividends completely. The SIPP wins on US shares and on tax relief going in. The ISA wins on the way out, because ISA withdrawals are tax free at any age while 75% of a SIPP withdrawal is taxed as income from age 55, rising to 57 in 2028.

Where can I get free guidance on pension tax?

UK savers aged 50 and over with a defined contribution pension can book a free Pension Wise appointment through MoneyHelper. gov.uk's guidance on tax on dividends covers the position outside a pension.

The takeaway

Dividends in a SIPP are not taxed. Most guides stop there, and two things worth real money sit just past it.

US shares in a SIPP can pay 0% withholding instead of 15%, if your broker supports it and you hold the shares rather than a fund.

UK REIT distributions arrive gross rather than a fifth lighter, and that gap widens in April 2027.

Neither will ever appear as a line on a statement. Over twenty years they change the number at the end by a lot.

This is illustrative, not financial advice. Tax rules change, personal circumstances matter, and the right answer for me may not be the right answer for you.