British expats in Portugal could face 40% UK inheritance tax on worldwide assets. Learn how to avoid costly mistakes, navigate forced heirship, and protect your family under the 2025 rules.

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The annual allowance taper is a progressive reduction of your pension contribution allowance based on income. It’s not a cliff edge where you hit a threshold and suddenly have zero allowance. Instead, it’s a slope: the more you earn above the threshold, the more your allowance reduces, until it hits a floor.
The government introduced the taper in 2016 to restrict high-earner pension tax relief. The policy rationale was straightforward: if you’re earning very high income, the government wants to limit how much tax relief you can claim on pension contributions. But instead of simply capping the allowance at a fixed amount or percentage, the government designed a formula that responds to income.
The formula is this: for every £2 of income above £260,000, your annual allowance reduces by £1. The allowance cannot fall below £10,000, no matter how high your income is. This creates a tapered zone between £260,000 and approximately £360,000 of threshold income where your allowance progressively reduces from £60,000 to £10,000.
Let’s walk through the mechanism with numbers. Imagine you earn threshold income of exactly £260,000 in a tax year. Your tapered allowance is still the full £60,000 because you haven’t exceeded the threshold. You can contribute (or have contributed on your behalf) up to £60,000 with tax relief.
Now imagine you earn £280,000. This is £20,000 above the threshold. The reduction is £20,000 divided by 2, which is £10,000. Your allowance is £60,000 minus £10,000 equals £50,000. You can contribute up to £50,000 with relief.
At £300,000 earned, you’re £40,000 above the threshold. The reduction is £40,000 divided by 2, which is £20,000. Your allowance is £60,000 minus £20,000 equals £40,000.
At £360,000 earned, you’re £100,000 above the threshold. The reduction would be £100,000 divided by 2, which is £50,000. But the minimum allowance is £10,000, so your allowance doesn’t fall below this. You can still contribute £10,000 per year with relief.
At £500,000 or £1,000,000, your allowance is still £10,000. The taper has reached its floor, and further income increases don’t reduce it further.
This mechanism has important consequences. It means that high earners with very high incomes still have some allowance, but it’s minimal. It also means that someone earning just above £260,000 is barely affected, while someone earning £280,000 or £300,000 experiences material reduction. And it creates planning opportunities because the relationship between income and allowance is predictable and measurable.
Here’s where the taper gets genuinely tricky: the calculation uses two different income measures, and understanding the distinction is crucial.
Threshold income is your income before any adjustment. It includes employment income, trading profit from self-employment, rental income from land and property, and certain investment income. It does not include income from savings or dividends (these are covered separately in the income tax system, with different rates and allowances). Threshold income is, broadly, the income you’d declare on a tax return before any reliefs or adjustments.
Adjusted income is threshold income plus the value of any pension contributions made by your employer on your behalf in that tax year. This is the crucial add-back. It’s not an estimate or a rough calculation; it’s the actual amount your employer paid into your pension. This is added to your threshold income, and that sum is what determines your taper.
Why does the government do this? The logic is that employer contributions are part of your total compensation package. If your employer contributes £50,000 to your pension, that’s £50,000 of relief the government is giving up by way of the employer contribution being deductible to the employer. So for taper purposes, the government adds it back into your income calculation, making you appear “richer” than your mere threshold income suggests.
This has a counter-intuitive consequence: the more your employer contributes to your pension, the worse your taper position becomes. A generous employer contribution can push you further into the tapered zone, reducing the allowance available for your own contributions.
Let’s illustrate. Jessica earned £280,000 in employment income in 2025/26. No employer contribution is made to her pension. Her threshold income is £280,000. Her adjusted income is also £280,000. The taper reduction is (£280,000 minus £260,000) divided by 2 equals £10,000. Her available allowance is £60,000 minus £10,000 equals £50,000.
Now, imagine Jessica’s employer decides to contribute £30,000 to her pension in 2025/26. Her threshold income is still £280,000. But her adjusted income is now £280,000 plus £30,000 equals £310,000. The taper reduction is (£310,000 minus £260,000) divided by 2 equals £25,000. Her available allowance is £60,000 minus £25,000 equals £35,000.
The generous employer contribution actually reduced her available allowance by £15,000 (from £50,000 to £35,000). This is because the £30,000 contribution counts toward using her allowance (reducing available carry-forward for future years) and also pushes her adjusted income higher, increasing taper.
This creates bizarre incentives. A high earner might be better off with a lower employer contribution and a higher salary that they contribute personally to a pension, because the personal contribution wouldn’t be added back into adjusted income. But employer contributions are often more tax-efficient from the employer’s perspective and involve other benefits. So the planning becomes intricate.
The taper only applies if your threshold income exceeds £260,000. Below that, you have your full £60,000 allowance and taper is irrelevant.
The impact varies by income level:
The people most affected by taper include:
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To calculate your tapered allowance accurately, follow these steps:
Let’s work through a detailed example. Michael earned £320,000 in salary and bonus in 2025/26. His employer made no pension contributions. His threshold income is £320,000. His adjusted income is also £320,000. Reduction: (£320,000 minus £260,000) divided by 2 equals £30,000. Tapered allowance: £60,000 minus £30,000 equals £30,000.
Michael can contribute up to £30,000 (personally or via employer contributions) and get tax relief. Any contributions above £30,000 would be excess contributions, subject to an annual allowance charge at 45% (or his marginal rate if lower) if the excess isn’t covered by carry-forward from prior years.
Now imagine in 2026/27, Michael’s income drops to £270,000 due to no bonus. His threshold income is £270,000. Adjusted income £270,000. Reduction: (£270,000 minus £260,000) divided by 2 equals £5,000. Tapered allowance: £60,000 minus £5,000 equals £55,000.
In one year he had a £30,000 allowance; in the next, a £55,000 allowance. The volatility is real, and planning must account for it.
The Minimum Allowance and Why It Matters
The £10,000 minimum allowance is important because it means you never lose your ability to contribute to a pension entirely, no matter how high your income is. Even if you earn £1,000,000, you still have a £10,000 annual allowance. This is a belt-and-braces protection that prevents the taper from ever being a complete bar to contributions.
It also means that once you’ve hit the £10,000 minimum (at adjusted income of approximately £360,000), further income increases don’t worsen your position. You’ve hit the floor. This provides some certainty and planning stability for very high earners above that income level.
But practically, £10,000 per year is a significant constraint for someone wanting to build pension savings. Over 30 years, contributions of £10,000 per year build to £300,000 (before growth). Compare this to someone under the threshold who can contribute £60,000 per year, building to £1.8 million over the same period. The impact of taper on lifetime pension wealth is substantial.
Six key misconceptions can lead to poor pension planning decisions:
The Interaction Between Taper and Carry-Forward
Understanding taper is essential when you’re also managing carry-forward. They’re separate mechanisms, but they interact in your favour if you plan correctly.
If you were tapered last year but not this year, your allowance improves. Any carry-forward available from last year was calculated based on that year’s tapered allowance. But this year, you can use your full (or less-tapered) current-year allowance without taper affecting it as much. This is actually a planning opportunity: if you know you’ll be tapered this year but less-tapered next year, you might want to hold off on using carry-forward this year and instead use it next year when your allowance is higher.
Conversely, if you know taper is worsening next year (income spike), you might want to use carry-forward while you still have a reasonable allowance available.
The ordering rules discussed earlier ensure that current-year allowance is used before carry-forward. So if you earn £300,000 in 2025/26 (tapered allowance of £40,000) and you have £20,000 of carry-forward from 2024/25, and you contribute £60,000, the ordering dictates that £40,000 comes from current-year allowance and £20,000 from carry-forward.
But what if your contribution is only £45,000? Then £40,000 comes from current-year allowance and £5,000 from carry-forward, leaving £15,000 of your carry-forward available for future years. This flexibility is powerful: you can choose not to use all your carry-forward in a year when your current-year allowance is constrained, and instead save the carry-forward for a year when your current-year allowance is higher.
The Difference Between Subject to Taper and Exceeding Your Allowance
Here’s a distinction that’s crucial but often missed: being subject to taper is not the same as exceeding your allowance.
You can be subject to taper (your income exceeds £260,000, so your allowance is reduced) without exceeding it. If your tapered allowance is £35,000 and you contribute £30,000, you’re fine. You’re not subject to an excess charge.
You can only face an excess charge if your contributions exceed your allowance. So if your tapered allowance is £35,000 and you contribute £40,000, the excess is £5,000. This creates a tax charge. But if you have carry-forward available, this excess can be covered and no charge arises.
The interaction is critical. Many high earners realize they’re subject to taper and panic, thinking they can’t contribute. But taper simply reduces your allowance; it doesn’t eliminate your ability to contribute to your pension. And if you’re managing carry-forward properly, you often have more allowance available than you think.
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Understanding the taper mechanism intellectually is one thing. Calculating your personal position correctly and implementing an optimal strategy is another. The taper affects your available allowance year by year, interacts with carry-forward, changes your planning horizon, and can be managed through remuneration timing. These moving parts are where high earners typically go wrong, either overestimating relief available or underestimating it.
Professional guidance here is about getting your personal calculation right, then using that clarity to optimize. If your tapered allowance is £25,000 (not the £60,000 you assumed), the planning changes entirely. If the taper can be reduced by £5,000 through bonus timing, that’s another £5,000 of relief you wouldn’t have otherwise claimed. These details are what separate intentional planning from guesswork.
Skybound Wealth brings precision to taper planning. Rather than assuming you understand your position or hoping your calculation is right, you have certainty. That certainty enables you to make better decisions about contribution timing, remuneration structure, and carry-forward strategy. The value is directly measurable in pounds of tax relief recovered.
Taper starts if your threshold income exceeds £260,000. However, the effect is minimal just above this threshold. At £260,001, you’re only £1 above the threshold, resulting in a reduction of £0.50 from your allowance. The impact becomes material once your income is materially higher, say £280,000 or above.
Adjusted income is threshold income (employment, trading profit, rental income, etc.) plus employer pension contributions made in that tax year. To find your adjusted income, start with your threshold income from your tax return or ask your accountant, then add any pension contributions your employer made into the pension on your behalf. This is the figure used to calculate taper.
Partially. If you can legitimately structure your remuneration to reduce your income below £260,000, you’d avoid taper. But for most people at this income level, this isn’t practical or tax-efficient. Professional advice on remuneration structures can sometimes help, but there are no guarantees. Focus instead on managing taper rather than trying to avoid it entirely.
No. Carry-forward from prior years is preserved regardless of whether you’re subject to taper in the current year. However, you can only use carry-forward if you have available allowance in the current year (i.e., you haven’t exceeded your tapered allowance for this year). If your entire tapered allowance is consumed, carry-forward can’t be used because there’s no room for it.
These are different mechanisms. The lifetime allowance (now largely irrelevant for most people; scrapped in 2023) was a cap on the total value of your pension across your lifetime. The taper is about the amount you can contribute in any single year. They’re separate issues affecting different people at different times.
Arun Sahota is a UK-regulated Private Wealth Partner at Skybound Wealth, advising high-net-worth and ultra-high-net-worth families, business owners, and senior executives with complex UK and cross-border financial planning needs.
This article is for information purposes only and does not constitute financial advice. Taper calculations depend on individual income levels and prevailing legislation.
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