When an Investment Bond Surrender Isn’t a Surrender: The Tax Trap Hiding in Plain Sight

A real case turned a £16,000 gain into a £151,000 tax charge. The mistake was basic. The consequences weren’t.

Earlier this year, a journalist at Citywire wrote about her grandparents’ experience with St James’s Place. The details are worth understanding, because this isn’t just an SJP problem. It’s a structural risk that sits inside every investment bond held in trust.

The family asked SJP to fully surrender an investment bond. It had been set up with 1,000 segments — standard practice, designed to give trustees flexibility over how withdrawals are taxed. The original investment was around £197,000. After annual 5% withdrawals, the investment bond was worth roughly £170,000. The actual investment gain was approximately £16,000.

When the chargeable event certificate arrived, it showed a gain of £151,144.

Not £16,000. £151,000.

The family assumed it was a mistake. It wasn’t. The investment bond hadn’t been processed as a full surrender. It had been processed as a partial withdrawal. And the difference between those two things turned a manageable tax position into a catastrophic one.

Full Surrender vs Partial Withdrawal: Why It Matters

This connects directly to what we’ve covered in earlier posts in this series. In the first post, we looked at how discretionary trusts pay income tax at 45% from the first pound above £500. In the second, we explored why the investment wrapper matters as much as the investments themselves. In the third, we covered the 5% withdrawal allowance and how trustees often misuse it.

The SJP case brings all three together.

Investment bonds are typically divided into segments — often hundreds or even a thousand identical portions. This segmentation exists for a reason. When trustees need to access capital, they have two routes:

A full segment surrender means cashing in specific segments entirely. Each segment is treated as its own mini-policy. The chargeable gain is calculated on that segment’s actual investment performance — what went in, what came out, what it’s worth. If the investment bond hasn’t made much money, the gain is small.

A partial withdrawal works completely differently. It’s tested against the cumulative 5% allowance across the entire investment bond. If the withdrawal exceeds that allowance, the excess triggers a chargeable event gain that bears no relation to actual investment performance.

That last point is critical and it’s what caught the family out. The investment bond had barely grown. But because the withdrawal was processed as a partial withdrawal rather than a full surrender, the “gain” was calculated on the excess over the cumulative 5% allowance — and that produced a figure nearly ten times the actual profit.

What Actually Went Wrong

The family asked for a full surrender. But every segment in the investment bond held exposure to SJP’s suspended property funds. Because you can’t fully surrender a segment that holds a suspended fund, SJP couldn’t process it as a full surrender. Around £5,700 remained trapped.

So the entire withdrawal was reclassified as a partial withdrawal. And the tax consequences followed from there.

This is worth sitting with for a moment. The family did everything right. They asked for a full surrender, understanding it would trigger a tax charge on the actual gain. The error wasn’t in their instructions. It was in the investment bond’s structure — specifically, the fact that every segment held the same suspended fund, which meant no segment could be fully surrendered.

The segmentation that was supposed to provide tax flexibility was rendered useless by the underlying fund selection.

This Isn’t Just an SJP Problem

It’s easy to read this as a story about one firm’s property fund closure. But the underlying issue is more general than that.

Any investment bond where every segment holds the same mix of funds carries the same structural risk. If any of those funds becomes suspended, gated, or illiquid, the ability to fully surrender individual segments disappears. And with it goes the tax efficiency that segmentation was designed to provide.

Property funds are the most obvious risk — open-ended property funds have been suspended multiple times in recent years, including during the 2016 Brexit vote, the 2020 pandemic, and the 2023 period that caught SJP. But they’re not the only risk. Any illiquid asset class within an investment bond could create the same problem.

For discretionary trusts, the stakes are higher than for personal investment bonds. A chargeable event gain on a personal investment bond is taxed at the individual’s marginal rate, with top-slicing relief potentially available to spread the gain. For a trust where the settlor has died, the gain is taxed on the trustees at 45%. The same structural problem produces a worse tax outcome.

How the 5% Rule Makes It Worse

The SJP family had been taking annual 5% withdrawals from the investment bond. That’s significant, because every 5% withdrawal reduces the cumulative allowance available.

As we covered in the previous post, the 5% allowance is a planning tool, not an entitlement. Taking it routinely without purpose uses up allowance that might be needed later. In this case, the annual withdrawals had consumed most of the cumulative allowance, leaving very little headroom. When the large withdrawal was forced into being a partial withdrawal rather than a full surrender, there was almost no allowance left to shelter it.

If the 5% withdrawals hadn’t been taken, more of the final withdrawal would have fallen within the cumulative allowance, and the chargeable event gain would have been smaller.

This is the interaction that most advisers miss. The 5% rule and the segment surrender strategy are not independent decisions. They affect each other. Taking 5% annually as a default — because “that’s what you’re supposed to do” — narrows the options available when a larger withdrawal becomes necessary.

What Should Have Happened

I’m not going to second-guess the original advice. But I can describe what a trust-aware approach to investment bond management would consider.

First, the underlying fund selection within the investment bond matters for more than just investment returns. If every segment holds the same illiquid fund, the segmentation is decorative. The ability to fully surrender segments — which is the whole point of having them — depends on each segment being capable of full liquidation when needed.

Second, the 5% withdrawal strategy should be connected to a plan, not taken by default. For a trust where the beneficiaries might need capital later, preserving the cumulative allowance gives the trustees more flexibility. Using it up year by year, with no purpose for the money, consumes optionality.

Third, and this is the point of this entire blog series: investment bonds inside trusts don’t work the same way as investment bonds held personally. The tax rates are different. The chargeable event consequences are different. The interaction with the beneficiary’s own tax position adds another layer. An adviser who treats a trust’s investment bond the same way they’d treat a personal one will eventually get caught out — and it’s the trust’s beneficiaries who pay the price.

The Human Cost

What struck me about the Citywire article wasn’t the tax mechanics. It was the human detail.

The grandfather had dementia. He died over Christmas. The grandmother had told the adviser this money might be needed for care. The adviser who sold the investment bonds had left the firm. The family spent hours trying to understand what had happened. Even people with financial backgrounds struggled to untangle it.

The journalist asked the right question: if financially astute people struggled to figure this out, what chance do ordinary clients stand?

This is why trust investment management can’t be an afterthought. It’s not enough to set up the trust correctly and choose reasonable investments. Someone needs to understand how the investment bond mechanics, the trust tax rules, the 5% allowance, the segment structure, and the beneficiary’s circumstances all interact — and to monitor that position over time, not just at the point of sale.

The family did everything they could. They asked for the right thing. They were told it had been done. It hadn’t. And by the time the chargeable event certificate arrived, the damage was done.

The Bottom Line

The difference between a full segment surrender and a partial withdrawal can be the difference between a reasonable tax bill and a devastating one. For trusts, where the tax rate is 45% rather than an individual’s marginal rate, the consequences are amplified.

The SJP case is a warning, but the principle applies to any investment bond held in trust. The questions worth asking are: can every segment in the investment bond be fully surrendered independently? Is there any illiquid or potentially suspendable fund sitting across all segments? Is the 5% allowance being used strategically or by habit? And does the person managing the investment bond actually understand how it works inside a trust?

If you’re a trustee holding an investment bond and you’re not sure of the answers, that’s the conversation to have. Before you need to withdraw, not after.

The Financial Conduct Authority does not regulate Trusts. The SJP case referenced in this post was reported by Laura Purkess in Citywire New Model Adviser (2025). Investment bonds are complex products with tax implications that depend on individual circumstances. The value of investments can fall as well as rise. Professional advice should be sought before making investment decisions.