We know looking after a trust can feel daunting. We’ll explain, in plain English, what HMRC expects so you can protect your family and the assets you care for.
First, we set out the difference between everyday duties — like managing assets and following the trust deed — and the tax tasks of registering, reporting and paying. We show how to keep clear records and share the right information with beneficiaries.
Where there are multiple trustees, we advise nominating a principal acting trustee to handle tax administration. That step helps administration but doesn’t remove shared accountability.
We map the journey: read the trust deed, register on the Trust Registration Service, complete the trust’s tax return and meet key deadlines. For practical help, see our estate planning guidance on how to register a trust and the official trustees’ tax page.
Key Takeaways
- Register the trust and file accurate returns to avoid penalties.
- Nominate a principal acting trustee to streamline tax tasks.
- Keep clear records and give beneficiaries requested information.
- Plan around main deadlines each tax year to reduce risk.
- Seek practical, family-focused guidance such as our registration guidance for UK families: register a trust.
Understanding trustee duties and the trust deed in the UK
We start by explaining who holds a family’s assets and how the trust deed shapes what they can and cannot do.
Who holds the assets and how a trust works
A named person or organisation holds property or cash on behalf of beneficiaries. The held trust exists so the chosen people receive benefits when the deed allows it.
For example, inheritance money may be held until someone turns 25, but trustees can pay for university fees or a rental deposit earlier.
Fiduciary duty and avoiding conflicts
We must put beneficiaries first. That means staying impartial and not using trust assets for personal gain.
“Act as you would with your own affairs, but put the beneficiary’s needs first.”
Decisions, care and powers
Many deeds require unanimous decisions. The trust deed can change this and give specific powers to an acting lead person.
Trustees should take professional advice for investments, land and complex cases to meet the common law duty of care.
Managing assets day to day
Trust assets include money, bank accounts, investments, land and modern holdings like crypto. Keep clear records and log each decision.

| Asset | Daily task | Common risk |
|---|---|---|
| Cash and bank accounts | Reconcile statements monthly | Missing payments |
| Investments | Review performance and take advice | Poor returns |
| Land and property | Maintain, insure and record tenancy | Liability or disrepair |
| Modern holdings | Secure access and document value | Loss of keys or passwords |
Working with co-trustees works best when roles are clear. Nominating a principal acting trustee can streamline admin and tax tasks while keeping everyone informed. For practical steps on accessing funds, see our short guide to access a trust fund.
trustee responsibilities hmrc: registering and maintaining the Trust Registration Service
Before you register, check whether the trust must appear on the register and gather the key information. We keep this straightforward so you can act with confidence.

When a trust must register and who is in scope
The Trust Registration Service was introduced to improve transparency and reduce money‑laundering risks. Most UK express trusts must register unless specifically exempt. Certain non‑UK trusts also fall in scope when they have UK tax links, acquire UK land or form a new business relationship with a UK relevant person.
What information TRS requires
Prepare the trust name, date of creation, country of tax residence and place of administration. You will also need details of settlors, trustees and beneficiaries, and those with control or significant influence — often called beneficial owners.
How to register and practical tips
Registration is done online using a Government Gateway account. Where trusts have multiple people or complex assets held trust, it can help to use an agent. Have ID, dates of birth and addresses ready to avoid delays.
Deadlines, updates and annual checks
New trusts created on or after 1 September 2022 must be registered within 90 days of creation. Trustees must also update TRS details within 90 days of any changes.
If the trust has a tax liability, an annual declaration confirming TRS accuracy is due by 31 January after the end of the tax year and is recorded via the trust’s Self Assessment return.
Consequences of non‑compliance
Late registrations are usually handled sympathetically unless deliberate. Deliberate failures can attract penalties up to £5,000 per offence and, in serious cases, criminal sanctions for breaching anti‑money‑laundering rules.
| Topic | Required action | Deadline | Why it matters |
|---|---|---|---|
| New trust registration | Register on TRS | Within 90 days of creation (from sept 2022) | Keeps the register current and avoids penalties |
| Change of trustees or beneficiaries | Update TRS details | Within 90 days | Ensures accurate information for enquiries |
| Taxable trust annual check | Make annual declaration | By 31 January after tax year end | Links TRS to the tax return process |
| Serious non‑compliance | May incur penalties | Varies | Can lead to fines or criminal action |
For step‑by‑step guidance on registering a trust as a lead contact, see our short guide to register a trust.
How to report and pay trust taxes to HMRC each tax year
When the tax year ends, accurate records let us report income, capital gains and any inheritance tax events without last‑minute panic.

Income tax and other trust income must be recorded as the year runs. Capture bank interest, dividends and rental income. Keep dates, source documents and bank statements ready so the end tax year return is straightforward.
Capital gains and disposals
Track disposals of assets held in trust, with purchase costs, sale dates and valuations. That paper trail proves how gains are calculated and reduces query risk.
Inheritance tax and form IHT100
If an inheritance tax event occurs, we may need to file form IHT100. Don’t assume no death means no reporting—some lifetime transfers still trigger a return.
Filing the tax return and key deadlines
File the Trust and Estate Self Assessment after the end tax year. Paper SA900 is due by 31 October; electronic returns by 31 January. HMRC will confirm any tax due once you submit.
Paying what is owed
Pay by the stated deadline to avoid interest and late payment charges. That protects the estate’s money and keeps beneficiaries undisturbed.
Record keeping and beneficiary statements
Keep full accounts, statements and supporting evidence for at least six years. Provide beneficiaries, on request, a statement of income and tax paid using form R185. For pension lump sums paid after death, use R185 (LSDB) and notify the beneficiary within 30 days.
International reporting
Where there are overseas connections, check FATCA and CRS rules. Investment portfolios may also need an LEI for some EU transactions.
For practical inheritance tax guidance linked to property held in trust, see our short guide on protecting property in trust.
Conclusion
Here is a compact wrap-up to help you remember what matters most when looking after a trust estate.
Core points: protect the trust estate, follow the deed, keep clear records and meet tax filing obligations without last‑minute panic.
Three habits that help: register when required, update details on time and keep tidy paperwork so reporting stays straightforward.
Remember the key timings: the 90‑day rule for TRS updates and the annual 31 January touchpoint come round faster than you expect.
Trusts can hold many assets — from cash to land — and each asset brings its own admin and tax pressures. Plan ahead and act early.
If anything feels unclear, especially with cross‑border issues or complex family arrangements, get professional advice early. It usually saves time and cost later. For practical inheritance planning, see our guide on how trusts can reduce your inheritance tax liability.
FAQ
What is a trustee and how does a trust hold assets on behalf of beneficiaries?
A trustee is a person or organisation that looks after assets placed in a trust for others. The trust deed sets out what the trust can hold — money, property, investments and sometimes shares — and names the people entitled to benefit. We act on behalf of beneficiaries and must follow the deed and the law when managing those assets.
What duty do trustees have to act impartially and avoid conflicts of interest?
Trustees must treat beneficiaries fairly and avoid favouring one person over another. That means disclosing any personal interest and stepping back from decisions where a conflict might arise. The duty of care requires sensible, documented decision-making to protect the estate and keep beneficiaries’ trust.
How should trustees make decisions and show reasonable care?
Decisions should be sensible, informed and recorded. Trustees should check the trust deed for their powers, get professional advice when needed, and keep written notes of meetings and reasons for choices. Acting within the deed and demonstrating due care reduces personal liability.
What practical steps are involved in managing trust assets like property and investments?
Regularly review assets, get valuations, keep maintenance and tax records, and consider diversification. For land and property, ensure title deeds and insurance are current. For investments, monitor performance and costs. Clear paperwork helps with tax reporting and beneficiaries’ queries.
How do co-trustees work together and when should a principal acting trustee be appointed?
Co-trustees share duties and should agree processes for decisions, signing documents and communication. If co-trustees live far apart or are many in number, naming a principal acting trustee simplifies day-to-day administration. The deed usually allows appointment and removal of co-trustees.
When must a trust register with the Trust Registration Service (TRS)?
Many trusts must register with the TRS. New rules since September 2022 widened the scope, so most discretionary and some interest-in-possession trusts need to register. Some exemptions apply, such as purely charitable trusts or trusts set up by pension schemes. Check the TRS guidance or get advice to confirm.
What information does the TRS require about the trust and people involved?
The TRS asks for details about the trust, its assets, the settlor, trustees, principal acting trustee (if any) and beneficiaries or class of beneficiaries. You’ll also provide dates and the trust’s tax position. Keep records ready to ensure accurate submission.
How do we register a trust online, and what should we prepare first?
You can register via an HMRC online account or an agent with access. Prepare the trust deed, ID for trustees, dates, description of assets and details of beneficiaries. Registration usually takes a short time if you have correct documents to hand.
What are the registration deadlines for trusts created from September 2022 onwards?
Trusts created from September 2022 generally must register within 90 days of creation or of a trustee taking office, though specific timings can vary. It’s important to act promptly to avoid penalties and to align TRS information with tax filings.
How often must TRS details be updated and what changes must we report?
Trustees must update TRS records whenever key details change — for example, a trustee or beneficiary change, or material changes to assets. The law sets timeframes for reporting changes; update the TRS as soon as possible to stay compliant.
Are there annual declarations or links between TRS and the trust tax return?
While the TRS itself isn’t a tax return, accurate TRS data helps when completing the Trust and Estate Self Assessment. Trustees must also file any required tax returns each tax year and ensure TRS details reflect the position reported to the tax office.
What are the consequences of failing to comply with TRS rules?
Failure to register, update or provide accurate information can lead to penalties and increased scrutiny. Persistent non-compliance may affect the trust’s position on inheritance and gains taxes and can harm beneficiaries’ interests.
How is income tax on trusts reported and recorded at the end of the tax year?
Trustees must record all trust income and report it on the Trust and Estate Self Assessment where required. Keep clear accounts of interest, dividends, rents and other receipts. Proper records make it easier to calculate tax due and to show beneficiaries their entitlement.
What about Capital Gains Tax for assets held in trust?
When a trust disposes of assets such as property or shares, trustees may need to calculate and report capital gains. Keep acquisition dates, values, and disposal records. Some gains may be chargeable to the trust, others to beneficiaries, depending on the trust type and distribution.
When does Inheritance Tax reporting apply and when might form IHT100 be needed?
IHT reporting is required for transfers, chargeable events or assets in the estate. If a trust attracts an IHT charge on creation, transfers or ten-year anniversaries, trustees may need to complete IHT forms such as IHT100. Seek guidance to determine which forms apply.
How and when must trustees send the Trust and Estate Self Assessment tax return?
The Trust and Estate Self Assessment must be filed for trusts liable to income or capital gains tax. Deadlines follow the usual self-assessment timetable: paper returns earlier, online returns by 31 January after the tax year. File and pay on time to avoid interest and penalties.
What are the rules for paying tax owed to HMRC and avoiding late payment charges?
Pay any tax shown as due by the payment deadline to avoid interest and penalties. Trustees should budget for likely bills, keep a clear bank account for trust funds, and use HMRC payment methods. If payment is difficult, contact HMRC early to discuss options.
What records should trustees keep for accounts, statements and supporting evidence?
Keep copies of the trust deed, bank statements, invoices, valuations, tax returns and correspondence. Store accounts and minutes of meetings. Good record-keeping supports tax filings and protects trustees if questions arise.
How do trustees provide tax information to beneficiaries, and when are R185 forms used?
Trustees must provide beneficiaries with details of income distributed so they can include it on their tax returns. R185 forms (or similar statements) give payers the information HMRC needs when tax is collected at source. Provide these promptly and keep records of distributions.
What additional reporting applies if the trust has international connections?
Trusts with overseas assets, beneficiaries or trustees may have extra reporting duties such as FATCA and CRS disclosures. These rules require identifying foreign connections and sharing certain information with tax authorities. Get specialist advice for cross-border matters.
