Do I Need a Trust Accountant for UK Inheritance Tax Planning?

What Is a Trust Accountant and When Do You Need One?

A trust accountant is a specialist who handles the tax and financial administration of trusts. This includes registering the trust with HMRC, preparing trust tax returns (form SA900), calculating Inheritance Tax (IHT) charges, and advising on the most tax-efficient structure for your circumstances.

You typically need a trust accountant UK when you are setting up a trust, have inherited one, or are considering transferring assets into a trust to reduce your IHT bill. The rules are specific and the penalties for getting them wrong are significant. A single missed filing deadline can cost thousands.

As ICAEW qualified accountants, we deal with trust matters regularly. Most business owners do not need a trust until their personal wealth or business value pushes them close to the IHT threshold. That threshold is currently £325,000 (the nil rate band), plus an additional £175,000 residence nil rate band if you pass your main home to direct descendants. That gives a married couple or civil partners up to £1m before IHT applies. But many business owners exceed that without realising it.

Why Trusts Matter for UK Business Owners

If you own a limited company, your shares are an asset. A holding worth £500,000 or £1m is not unusual for a successful business. Add in a house, pensions (usually outside IHT), savings and investments, and you can quickly exceed the nil rate bands.

Trusts allow you to remove assets from your estate while retaining some control over who benefits and when. They are not just for the ultra-wealthy. A straightforward life interest trust or a discretionary trust can be appropriate for a business owner with a growing company, a spouse who does not want to run the business, and children who are too young to take over.

The key point is timing. Setting up a trust early, when the asset value is lower, can lock in reliefs and reduce the eventual IHT charge. Waiting until you are older or unwell can trigger "gifts with reservation" issues and lose the benefit of the seven-year rule for potentially exempt transfers.

What a Trust Accountant UK Actually Does

A trust accountant's role goes beyond filing a tax return once a year. Here is what you can expect:

• Trust registration. Most trusts must be registered with HMRC's Trust Registration Service (TRS) within 90 days of creation. Non-UK trusts and certain non-taxable trusts also need registering. The penalties for late registration start at £5,000.
• SA900 trust tax return. Trusts pay income tax at special rates: 8.75% on dividend income (basic rate band), 39.35% on other income above £1,000. The trust tax return is more complex than a personal self assessment. It requires a full income statement, a statement of trust capital, and details of beneficiary entitlements.
• IHT periodic and exit charges. Discretionary trusts face an IHT charge every ten years (the periodic charge) and when capital leaves the trust (the exit charge). Calculating these requires understanding the relevant property regime, the nil rate band available at the trust's creation, and the value of the trust fund at each chargeable event.
• Capital gains tax planning. Transfers into and out of trusts can trigger CGT. Trustees have their own annual exempt amount (half the individual allowance, currently £1,500 for 2025/26). A trust accountant ensures disposals are timed to use this allowance and that holdover relief is claimed where available.
• Advising on trust structure. Should you use a bare trust, an interest in possession trust, or a discretionary trust? Each has different tax treatment. A bare trust is simplest but the beneficiary has immediate entitlement. A discretionary trust gives maximum flexibility but attracts the highest tax charges. Your accountant will model the numbers for your specific situation.

That is a lot of moving parts. Most general practice accountants can handle a simple bare trust. But for discretionary trusts, business property trusts, or anything involving IHT planning, you need a specialist.

When Do Business Owners Typically Need a Trust?

Here are three scenarios we see regularly at Holloway Davies:

1. Protecting Business Property Relief

Business Property Relief (BPR) gives 100% IHT relief on qualifying business assets, including shares in your own trading company. But if you give those shares away, the relief can be lost. A trust can hold the shares and preserve BPR, provided the trust is structured correctly and the business continues to trade. This is a niche area. One wrong clause in the trust deed and the relief disappears.

2. Passing Down the Family Company

You want your son or daughter to take over the business, but not until they are ready. A trust can hold the shares on their behalf, with you as trustee retaining control. The shares are outside your estate for IHT (after seven years if it is a potentially exempt transfer, or immediately if BPR applies). The child gets the benefit later without the immediate IHT hit.

3. Protecting a Spouse or Partner

A common structure for married couples is the nil rate band discretionary trust. On the first death, assets up to £325,000 pass into a trust rather than directly to the surviving spouse. This uses the deceased's nil rate band and keeps the assets out of the survivor's estate. Without this trust, the survivor's estate could exceed the nil rate band on second death, creating an unnecessary IHT bill.

Costs and Risks of DIY Trust Administration

Some business owners try to save fees by administering a trust themselves. It is possible for a very simple bare trust with minimal income. But the risks are real:

• Missed filing deadlines. Trust returns are due by 31 January after the tax year end. Late filing penalties start at £100 and escalate. HMRC also charges interest on late tax.
• Incorrect tax calculations. Trust tax rates are not the same as personal rates. Get the dividend trust rate wrong and you could underpay by thousands. HMRC will come back for it plus interest and penalties.
• IHT charges overlooked. The ten-year periodic charge is easy to forget. It is calculated on the trust fund value at the anniversary. Miss it and the charge plus interest accrues from the due date.
• Trust registration errors. The TRS requires detailed information about the trust, the settlor, the trustees, and the beneficiaries. Incomplete or incorrect registrations can lead to compliance checks and fines.

Compare that to the cost of a trust accountant UK. For a straightforward trust with modest income and no IHT charges, expect to pay £500 to £1,000 per year for the SA900 and ongoing compliance. For a more complex discretionary trust with IHT planning, fees of £1,500 to £3,000 per year are typical. That is a fraction of the potential IHT saving.

How to Choose a Trust Accountant

Not all accountants are trust specialists. Here is what to look for:

• ICAEW or ACCA qualification. These bodies have specific trust and tax modules. Ask if the firm has a dedicated trust specialist.
• Experience with business owners. Trusts for trading companies are different from trusts holding cash or quoted shares. Your accountant should understand Business Property Relief, holdover relief, and the interaction with the company's articles of association.
• Willingness to work with your solicitor. The trust deed is a legal document. Your accountant should review it before it is signed to ensure the tax treatment is correct. A solicitor who specialises in private client work is essential.
• Transparent pricing. Ask for a fixed fee for the annual compliance work. Avoid hourly billing for routine trust administration. You want to know the cost upfront.

At Holloway Davies, our ICAEW qualified team handles trust compliance and IHT planning for business owners across the UK. We work with your solicitor to get the structure right from the start. You can see our full range of services here.

Next Steps: Do You Need a Trust?

If your estate (including your business, house, savings and investments) is worth more than £325,000 as an individual or £650,000 as a couple, you should consider IHT planning. A trust is one tool. There are others, including life insurance, gift planning, and using your pension more strategically.

The first step is a review of your current estate and your goals. That does not mean setting up a trust immediately. It means understanding the numbers and the options.

If you want to discuss whether a trust is right for you, get in touch with our team. We will run through your situation, explain the costs and benefits, and recommend a course of action. If a trust is appropriate, we will handle the compliance. If not, we will tell you that too.

For a broader overview of how trusts fit into your overall tax planning, our incorporation and structure blog covers the basics of business ownership structures, including trust considerations.