Every adviser knows ISA season. You don’t need reminding about allowances, deadlines or tax wrappers. That’s well-trodden ground. What’s arguably becoming more important, according to Tom Hawkins, Director of Business Management at Charles Stanley, is not whether a client uses their ISA allowance, but what happens after they do.
The fact that clients lose unused allowance after April 5 is a useful prompt for reviews, but it’s not the full story. Below are some considerations to support year-end conversations – and my take on why ISA season is no longer just about subscriptions.
Six practical planning points you could consider
1. Secure the allowance even if the investment decision comes later
You don’t need us to tell you that clients who are unsure about asset allocation can still subscribe in cash to preserve their allowance and decide later, when you and they decide. When it comes to considering how, once subscribed, those funds are later invested appropriately for that client’s goals and risk tolerance, it’s important to consider the strategic use of that flexibility. For example, preserving optionality in volatile markets and managing entry timing risk, as well as diversification.
2. Channel contributions directly into a professionally managed portfolio
Depending on how much tailoring, management and flexibility you and your client want, an option is to consider ISA top-ups into a managed portfolio service inside an ISA. This could help avoid last-minute fund picking and may give you the chance to tailor and structure investments around their long-term plan. MPS ranges can give advisers who want to outsource manual asset allocation and tactical decisions a straightforward way to place investments into diversified, actively managed portfolios with clear risk profiles. Models are available across leading adviser platforms and provide disciplined asset allocation and rebalancing oversight.
3. Support self-directing clients with curated options
Advisers also know that some clients still prefer to be more hands-on. In those cases, signposting a high-quality preferred list or a research-driven shortlist can give clients the clarity they want without drifting into execution-only territory. More bespoke partnerships with multi-asset investment specialists can support this too, providing structure and due diligence while preserving client choice.
Increasingly, the discipline behind the investment process matters just as much as the countdown to 5 April. Access to robust research, a centralised investment proposition, and well-governed multi-asset expertise can help advisers meet diverse client preferences while keeping investment decisions consistent, well-reasoned and aligned with long-term goals.
4. Re-establish diversification – ISA season can tempt clients into concentration
Year-end often triggers thematic or performance-chasing behaviour. It’s a key time to check for concentration risk and potentially counter this with broad global diversification and more disciplined asset allocation aligned with the client’s objectives. Charles Stanley’s usual approach, for example, specifically avoids excessive home bias and prioritises global investment opportunities. This gives clients balanced exposure compared with more ad-hoc fund choices. Be wary of biases creeping in, especially recency bias at times of volatility.
5. Maximise allowances across the household and position ISAs alongside pension allowances
ISA planning can be more powerful at the household level. Couples can shelter up to £40,000, and junior ISAs often bring wider family planning into view. Advisers tell us this tends to open broader conversations rather than simply filling a wrapper.
For higher-rate taxpayers, pensions typically offer stronger up-front tax advantages than additional ISA deposits. Many advisers help clients balance this relief with the ISA’s accessible, tax-free withdrawals.
Today, many clients draw more from ISAs and preserve pensions due to current IHT rules. However, with unused pension pots scheduled to fall within IHT after April 2027, advisers will increasingly need to assess both wrappers together over a client’s lifetime. This underscores the value of structured, year-round planning and professionally managed portfolios that support flexible withdrawal strategies.
6. Encourage earlier action – not just because of cut-offs
Deadlines still matter, of course. But most advisers now try to avoid the frantic 5 April rush because hurried investment decisions are rarely good ones. The more clients act early, the more meaningful the investment conversation can be.
The bigger picture
ISA season inevitably puts the spotlight on the strength of an adviser’s – and a provider’s – investment process. The propositions that stand out are those where both operate from a clear, repeatable framework supported by strong oversight, centralised investment principles and a focus on delivering consistent outcomes.
For me, ISA season isn’t really about the wrapper. It’s about helping clients allocate new money sensibly and avoid the impulsive decisions that can creep in as deadlines approach.That’s where a Managed Portfolio Service can prove its value: bringing structure, discipline and reassurance at a time when clients often need it most.
By treating ISA top-ups as part of a coherent, year-round investment strategy, managed portfolios help advisers deliver the consistency and clarity clients expect during the busiest weeks of the year.
About Tom Hawkins
Tom joined Charles Stanley in September 2022 as Head of Strategic Partnerships. Prior to joining, he worked at Quilter for 22 years where he held a number of roles, namely their BDM working with national advice businesses and networks, the Regional Sales Manager for the SW region and he also spent 4 years as their Head of Marketing. Tom is responsible for developing new strategic partnerships with financial adviser firms in the UK to help them deliver standout investment solutions to their clients.
