AIM portfolios can sometimes feel easier to explain than other tax-efficient investments.
They are shares.
There is a market.
There is a portfolio.
The client may already understand the idea of investing in companies, especially if they have pensions, ISAs, model portfolios or direct equity experience.
So compared with something like EIS, AIM can feel a little more familiar.
But that is exactly where advisers need to be careful.
Because familiar does not always mean simple.
And it definitely does not mean low risk.
Why AIM portfolios come up in advice conversations
AIM portfolios are often considered where a client has an inheritance tax planning objective but does not want to give money away.
That might be because they want to retain ownership.
They may be worried about future care costs.
They may not feel comfortable with outright gifts or trusts.
They may want something that feels more flexible than traditional estate planning.
For the right client, an AIM portfolio can have a place. Certain AIM shares may qualify for Business Relief, which can mean they fall outside the estate for inheritance tax purposes after two years, provided they are still held at death and continue to qualify.
That two-year point often gets attention.
It can sound much more appealing than the seven-year gifting rule.
But for advisers, the important bit is making sure the client understands what sits behind that headline.
Because this is still an investment-led strategy.
And the suitability work is not just about whether the client wants to reduce inheritance tax.
It is about whether they can accept the investment risk, liquidity risk and qualifying-status risk that come with this route.
The familiarity risk
One of the practical challenges with AIM is that clients may hear “shares” and assume they understand the risk.
They might mentally compare it with investments they already hold.
A pension portfolio.
An ISA.
A managed equity fund.
A mainstream UK equity allocation.
But AIM exposure can behave very differently.
The companies may be smaller. The market can be more volatile. Trading volumes can be lower. Share prices may move sharply. Selling may not always be straightforward, especially in stressed market conditions.
That does not make AIM unsuitable.
But it does mean the conversation needs to be specific.
Not just:
“The client understands investment risk.”
More like:
“The client understands the additional risks associated with smaller companies, AIM-listed shares, possible liquidity constraints and the fact that Business Relief is not guaranteed.”
That distinction matters.
A client who is comfortable with a mainstream balanced portfolio may not automatically be comfortable with a concentrated smaller-company portfolio used for IHT planning.
So a useful adviser question is:
Has the client understood how this could feel in practice, not just how it works on paper?
For example, would they still feel comfortable if the portfolio fell sharply? Would they still want to hold it if markets were unsettled? Would they be able to avoid making a rushed decision if the value moved against them?
Those questions can make the risk feel more real.
The two-year point needs careful framing
The two-year holding period is often the part clients remember.
But time alone is not the whole story.
For Business Relief to apply, the shares must remain qualifying and usually need to be held at death. If the underlying shares cease to qualify, or the rules change, the expected inheritance tax treatment may not apply in the way the client originally hoped.
That can be easily missed if the conversation becomes too focused on “two years”.
A practical way to frame it with clients is:
“The two-year point is not a finish line. It is one condition in a planning strategy that needs to continue working.”
That wording helps keep the conversation balanced.
It also makes clear that AIM is not a guaranteed tax shelter. It is an investment portfolio with potential IHT benefits attached.
For the advice file, it is worth evidencing that the client understands:
The shares need to remain qualifying.
The tax treatment can change.
The value of the portfolio can fall.
Access may not be immediate.
The investment may need to be held until death for the intended IHT outcome.
That last point is especially important.
Because if the client thinks of AIM as a short-term two-year solution, there may be a mismatch between what they believe they are doing and what the planning actually requires.
The rule change advisers need to factor in
There is also a newer planning point that needs to be part of the conversation.
From 6 April 2026, qualifying AIM shares are expected to receive 50% Business Relief for inheritance tax purposes, rather than the 100% relief that has historically applied. That means the IHT position may still be beneficial, but it is not the same planning outcome clients may have heard about before.
For advisers, this makes the suitability discussion even more important.
If the relief is lower, the investment case, risk profile, liquidity position and client understanding need to stand up even more clearly. The question is no longer just whether AIM could reduce an IHT liability, but whether the remaining tax benefit is enough to justify the additional risk for this client.
That is especially important for existing clients who already hold AIM portfolios. Their original recommendation may have been made under a different relief expectation, so review conversations may need to revisit whether the planning still feels proportionate.
The access conversation needs more than “you retain control”
AIM portfolios are often attractive because they allow the client to retain ownership and potential access.
That can be a real advantage compared with gifting.
But “retaining access” needs careful explanation.
There is a difference between:
“You still own the investment.”
and
“You can access the money quickly, at a stable value, whenever you need it.”
Those are not the same thing.
For advisers, this is where the conversation needs to connect back to the client’s real life.
Could they need the money for care?
Would they use it to support family?
Is this part of their emergency reserve?
Would selling during a market fall create a problem?
Could they meet income and capital needs without relying on this portfolio?
A useful sense-check is:
If the client needed this money sooner than expected, and the AIM portfolio was down at the time, would the wider plan still work?
If the answer is no, or not comfortably, the recommendation may need more thought.
That does not automatically rule AIM out.
But it does mean the advice needs to show how the access risk has been explored, rather than simply saying the client retains control.
What advisers may want to evidence
For advisers and paraplanners, a strong AIM case usually shows why this route fits the client’s wider circumstances, not just their IHT objective.
That might include evidencing:
Why the client is considering AIM now.
Why gifting, trusts, life cover or spending strategies were not preferred.
How much of the estate or portfolio is being allocated.
Whether the client can tolerate capital loss.
Whether the client can cope with delayed or uncertain access.
What investment experience the client already has.
How smaller-company risk has been explained.
Whether the client understands qualifying-status risk.
Whether the client understands this may need to be held until death for the intended IHT outcome.
Whether the recommendation remains proportionate.
That final point is worth pausing on.
AIM may be suitable for part of the client’s estate planning.
That does not mean it is suitable for too much of it.
Proportion matters.
Especially where the client is older, nervous about markets, reliant on the capital, or already carrying other investment risks elsewhere.
The practical takeaway
AIM portfolios can be useful.
But they should not be made to sound simpler than they are.
The key adviser challenge is making sure the client does not confuse familiarity with suitability.
Yes, AIM involves shares.
Yes, there may be a market.
Yes, there may be potential IHT benefits after two years.
But the client still needs to understand the investment risk, the liquidity risk, the qualifying-status risk and the fact that the tax outcome is not guaranteed.
A helpful question to come back to is:
Is the client choosing this because they understand the whole trade-off, or because the two-year IHT point sounds attractive?
That is often where the real advice work sits.
Last week, we looked at EIS and the risk of letting the reliefs become louder than the risks.
This week, AIM portfolios bring a slightly different challenge.
The risk is not always that the client does not understand investments at all.
Sometimes it is that the investment sounds more familiar than it really is.
We’ll be sharing the full guide at the end of the series, covering Business Relief, AIM portfolios, VCTs and EIS.
For now, the point is simple.
Tax relief matters.
But suitability is what makes the recommendation stand up.
For anyone who wants to look at the background in more detail, HMRC has guidance on how Business Relief works for inheritance tax, including what may qualify and how relief is claimed.
Business Relief for Inheritance Tax
The London Stock Exchange also has a useful overview of AIM as a growth market.
AIM – Funding innovation for over 30 years
And for a wider reminder on risk communication, the FCA’s review of financial promotions for high-risk investments is worth keeping in mind, especially when thinking about how clearly clients understand the risks as well as the potential benefits.
