General Investment Accounts for HNW Clients: A UK Adviser's Guide for 2026/27

Most HNW client tax bills in 2026/27 will be shaped not by which DFM runs the money, but by which wrapper the money sits in. ISAs and SIPPs are tax sheltered. Onshore and offshore bonds carry their own rules. The GIA, the unwrapped general investment account, is where the maths gets fiddly: a GBP 3,000 CGT exemption, a GBP 500 dividend allowance, and CGT rates that now run to 24 percent on top slice gains. This piece is for advisers who need a clean reference for using GIAs alongside the other wrappers, and who want a written framework to take into client reviews.

The piece does not argue the GIA is the right wrapper for everyone. It argues that, for HNW clients with assets beyond the ISA and pension limits, the GIA is unavoidable, and that the way it is used can move the after-tax outcome by more than most adviser fee debates ever do.

What a GIA actually is, and what it is not

A General Investment Account is shorthand for an unwrapped, taxable investment account held with a platform, broker, or DFM. It is not a regulated product type in the way an ISA or pension is. It is simply the default account that holds investments outside of a tax wrapper.

There is no annual contribution limit. There is no minimum holding period. There is no withdrawal rule. The client owns the assets directly, and the tax authority looks straight through the platform to the client for CGT, income tax on dividends, interest, and any equalisation adjustments on funds. The GIA gives you flexibility; what it does not give you is shelter.

For HNW clients the GIA usually appears for one of three reasons: (1) annual ISA and pension allowances are already full, (2) a windfall or business sale needs deploying before bonds or trusts can be set up, or (3) the client wants direct ownership of holdings outside any wrapper for liquidity, control, or estate planning reasons. None of these are bad reasons. They just need the tax architecture to match.

The 2026/27 numbers in one place

Allowances and rates for the current tax year, drawn from HMRC’s published rates and the CGT rate schedule:

Allowance or rate	2026/27 figure
Annual CGT exemption	GBP 3,000 per individual
Dividend allowance	GBP 500
Personal savings allowance, basic rate	GBP 1,000
Personal savings allowance, higher rate	GBP 500
Personal savings allowance, additional rate	Nil
CGT rate, basic rate band	18 percent
CGT rate, higher and additional rate	24 percent
Dividend tax, basic rate	8.75 percent
Dividend tax, higher rate	33.75 percent
Dividend tax, additional rate	39.35 percent

For a HNW client paying additional rate tax with a fully invested GIA, the working assumption is that almost every pound of dividend, every pound of interest above zero, and every pound of realised gain above GBP 3,000 is taxed at the top rate that applies to that income type. The headline numbers are unforgiving. The planning question is how to keep the GIA portion of the portfolio inside the structures that produce the least friction.

Wrapper hierarchy for HNW clients

The order of operations is well rehearsed but worth stating in writing for client files:

1. Fill ISA allowances (GBP 20,000 per individual) before adding to the GIA.
2. Use pension annual allowances where the client has the relevant earnings, factoring in tapering for high earners and any unused carry forward.
3. Consider onshore or offshore bonds where income smoothing, deferred gains, or settlor-interested trust planning matter, particularly above the lifetime gifting position.
4. Use the GIA for the residual, with a deliberate plan for CGT, dividend, and interest management.

This ordering does not change because of the manager, and a DFM that runs a single allocation across all wrappers should still vary the asset location underneath. Expect to ask, and expect to receive in writing, what the manager will do differently in the GIA versus the wrapped portion.

Asset location: what to put in the GIA

The principle is to place assets that are taxed least efficiently outside the wrapper inside the wrappers that shelter them, and to fill the GIA with assets where the GIA’s frictions are lowest.

In practical terms for 2026/27:

• Bonds and high yield credit: Best inside the SIPP. Interest taxation bites hard at additional rate, and the personal savings allowance is nil. A GIA holding of corporate bonds or high yield credit converts coupon into income tax at 45 percent.
• High turnover global equity funds: Best inside the ISA. Each rebalance crystallises gains for the client; with the CGT exemption now at GBP 3,000, even a moderately active equity fund or DFM mandate can absorb the entire annual exemption in a few trades.
• CGT aware direct equity: Sensible inside the GIA. Direct holdings let the manager choose what to sell, harvest losses, and use the annual exemption deliberately. They also do not generate the capital gains distributions that some pooled funds pass through.
• Investment trusts and dividend-focused holdings: Mixed. Inside the GIA they consume the GBP 500 dividend allowance quickly; for income-seeking HNW clients the wrapper hierarchy matters more than the holding choice.
• Cash and money market funds: GIAs are workable for short-term cash buffers, but interest above the personal savings allowance is fully taxable, so prefer ISA or SIPP cash for sustained holdings.

For the dividend and CGT mathematics, see the case for multi-asset class portfolios in 2026, which covers how the wrapper structure affects total return after tax.

CGT management inside the GIA

The CGT exemption at GBP 3,000 is small enough that a HNW GIA will usually exhaust it in the first half of the tax year. The interesting question is how the manager handles the remainder. Three mechanisms are worth specifying in writing with any DFM running a GIA mandate:

1. CGT budget. A target gain figure for the year, typically close to the annual exemption in ordinary years, with a deliberate larger harvest in lower income years where the client expects a basic rate slice. Expect this to be agreed at the start of each year.
2. Loss harvesting. A documented process for realising losses against gains, with attention to share matching rules (the same day rule, the 30 day rule, and the section 104 pool) to avoid disallowance.
3. Bed and ISA, bed and SIPP, bed and spouse. A policy on whether the manager will execute these wrapper transfers, and on what frequency. Some managers do not, which leaves the unwrapped portion of the portfolio compounding into a larger CGT position over time.

Where a DFM cannot run a wrapper-aware allocation, the GIA is often the part of the portfolio that suffers most. For the broader picture of how DFM tax architecture affects HNW after tax outcomes, see tax implications of DFM portfolios.

Dividend and interest management

The GBP 500 dividend allowance is small. Any HNW client with a meaningful equity holding inside a GIA will exceed it. Two practical considerations follow:

• Dividend reinvestment is taxable. Reinvested dividends are still received and assessed; clients sometimes assume DRIP plans defer income, and they do not.
• Equalisation payments on funds. When a client buys a fund partway through a distribution period, the first distribution includes a return of capital that is not taxable. The DFM tax pack should split this out; if it does not, the client may overpay tax on the first distribution.

For interest, the personal savings allowance is GBP 1,000 for basic rate, GBP 500 for higher rate, and nil for additional rate. A HNW client with cash or short-dated gilts inside a GIA should expect interest to be fully taxable in most years, and the planning options narrow to wrapper migration or shifting to gilts where capital appreciation rather than coupon drives the return. HMRC’s guidance on dividend taxation sets out the rates applied to amounts above the allowance.

Spousal allowances and joint GIAs

Where the client is married or in a civil partnership, the planning surface doubles. Inter-spousal transfers of investments are no gain/no loss for CGT purposes, which means a holding can be moved to the lower income partner before disposal, the gain assessed against their CGT exemption and rate band, and the proceeds deployed accordingly. This is one of the cleanest planning levers in a GIA and a poorly used one. Audit current GIAs at the next review and check whether spousal transfers would have produced a better after tax outcome over the last three years.

Joint GIAs split income and gains 50/50 by default, which is workable for couples on similar tax bands and inefficient for couples on different ones. For HNW couples with a sharply different income profile, separate GIAs with deliberate asset allocation between them produce a better after tax outcome.

Estate planning interaction

Assets in a GIA pass into the client’s estate at market value and are subject to inheritance tax in the normal way. There is no special tax treatment on death in the GIA itself; beneficiaries acquire the assets at probate value, which resets their CGT base cost. For HNW clients with significant unwrapped holdings, the GIA sits alongside trusts, gifts, life cover written in trust, and any BPR-qualifying holdings as part of a coordinated plan.

The interaction with AIM portfolios changed materially this year. From 6 April 2026 qualifying AIM shares attract 50 percent BPR not 100 percent, with no allowance to soften the change. For clients holding AIM inside the GIA as part of an IHT plan, see AIM portfolios and the new IHT cap for the full reassessment.

Adviser checklist for client reviews

For the next round of HNW reviews, take this into the meeting:

• Confirm ISA and pension allowances used for the year, including carry forward where relevant.
• For each GIA holding, identify unrealised gains, realised gains year to date, and the implied CGT exposure if disposed.
• Set a CGT budget for the remainder of the tax year.
• Identify candidates for spousal transfer, bed and ISA, and bed and SIPP before 5 April.
• Review the asset location across wrappers; check whether bonds are sitting in the GIA when they could be in the SIPP.
• Confirm the DFM’s CGT management policy in writing and ask for next year’s tax pack delivery date.

For the calendar view alongside annual planning, new tax year planning for HNW clients sets out the wider sequencing across the tax year.

Where Alpha IO sits

Alpha Investment Office (FCA Ref 1019537) runs discretionary mandates across ISAs, SIPPs, and GIAs concurrently, with custody through SEI and consolidated annual tax reporting delivered before the self assessment deadline. Advisers reviewing the GIA portion of a HNW client’s portfolio with their current DFM should ask for: a written CGT management policy, a sample tax pack, and a wrapper-aware asset location statement. Compare the answer to what would change if the GIA were run under a single coordinated mandate across wrappers.

If you would like to walk through how an Alpha IO mandate would handle a HNW GIA alongside the wrapped portion of the portfolio, contact us to arrange a conversation.