MP Estate Planning UK

HMRC Trust Register Explained: Who Must Register and Why

hmrc trust register

We explain the HMRC trust register in plain English. It is the official route to record who benefits from a trust and, when needed, to obtain a Unique Taxpayer Reference via the TRS.

Our aim is to make the process feel manageable. We set out what matters for British homeowners and families, and why banks, insurers and providers may ask for proof that a trust is on the register before they act.

Even if a trust pays no tax, registration may still be required. The rules changed after October 2020 and deadlines now carry real consequences, including penalties and anti-money laundering concerns.

We introduce the key players — settlors, trustees and beneficiaries — and explain the practical information you must supply. We also outline what happens after registration and common mistakes that cause delay.

Key Takeaways

  • The TRS is the single route for trust registration and UTRs where relevant.
  • Registration can be required even when no tax is due.
  • Banks and providers often demand proof of listing on the trust register.
  • Deadlines matter — late filings can lead to penalties.
  • We break the process into clear steps to avoid common delays.

Understanding the Trust Registration Service and why it exists

We explain what the trust registration service does and who it protects. The system began in 2017 for taxable arrangements and expanded after the Fourth and Fifth Money Laundering Directives. From October 2020, most UK resident non-taxable arrangements in existence on or after 6 October 2020 must appear on the TRS.

The registration service is the government’s central record of beneficial ownership. It holds information on the settlor, trustees, beneficiaries, key dates and sometimes assets or controllers. A registered trs entry may show a UTR for taxable cases or a URN for non-taxable ones.

A modern office setting representing the concept of the Trust Registration Service. In the foreground, a professional individual in business attire, focused and engaged, sits at a sleek desk adorned with documents and a laptop displaying a trust registration form. In the middle ground, a digital screen shows a flowchart of the trust registration process, highlighting key steps. The background features large windows allowing natural light to flood the room, creating a bright and inviting atmosphere. Soft overhead lighting enhances the professional mood, while subtle greenery adds a touch of warmth to the scene. The perspective is slightly elevated, capturing the workspace in a tidy and organized manner, emphasizing the importance of trust registration.

Organisations such as banks and investment providers often ask for TRS evidence and your URN. They must check details against HMRC records and report material mismatches. That is why accuracy matters: a simple change of trustees or a withdrawal can be paused until the firm sees the correct details.

  • Central purpose: prevent hiding money or assets.
  • What is held: names, dates, beneficiaries and sometimes assets.
  • Practical effect: providers may delay transactions until they see TRS proof.

Who must register on the hmrc trust register

We break the scope down so you can quickly spot if you need to act. There are three broad groups to check: arrangements with a UK tax liability, most UK-based arrangements even if non-taxable, and overseas arrangements with a UK link.

UK and non-UK arrangements with a UK tax liability

If the arrangement faces UK income tax, capital gains tax, inheritance tax, SDLT (or Scottish/Welsh equivalents) or stamp duties, it must appear on the TRS. That applies whether the arrangement is UK resident or not.

Non-taxable UK arrangements that still need listing

Many people assume no tax means no paperwork. That is not always the case. Most UK arrangements created before or after the 2020 change still need details on the central record, even when no tax is payable.

Overseas arrangements brought into scope

An overseas arrangement must be shown if it has at least one UK resident trustee, if it forms a business relationship with a UK obligated entity (for example a bank or investment provider), or if it acquires UK property.

A professional business setting featuring a diverse group of individuals engaged in a discussion about the HMRC Trust Register. In the foreground, a middle-aged South Asian woman, dressed in a smart blazer, points to a laptop showing a detailed trust registration form. Beside her, a young Black man in a tailored suit takes notes, showcasing focus and engagement. In the middle ground, a conference table is cluttered with documents and coffee cups, while a large window lets in soft, natural light, casting a warm glow over the scene. The background features a minimalist office with plants and subtle branding related to financial services. The mood is serious yet collaborative, emphasizing the importance of understanding trust registration requirements.

Generally, arrangements created from 1 September 2022 must be listed within 90 days. Most required listings and significant updates must be notified within 90 days of the event.

  • Typical events needing updates: appointment or resignation of a trustee, new beneficiaries, or a change of contact details.
  • If you are unsure whether you need register, check early to avoid penalties and delays with banks and providers.

For step‑by‑step help on the process and examples, see our guide on registering a trust in Britain.

Trusts that are excluded from registration and common grey areas

There are clear exclusions and a few grey areas that commonly confuse families. We summarise the typical categories and show where you should check further.

A serene office environment featuring a large wooden conference table, softly illuminated by warm, natural light filtering through tall windows. In the foreground, an arrangement of official documents and folders labeled as "Trusts" and "Excluded Arrangements" are visibly placed on the table. The middle ground shows several professionals in business attire engaged in a thoughtful discussion, examining the documents. A sideboard in the background displays abstract art pieces and potted plants, contributing to the calm atmosphere. The overall mood is one of contemplation and clarity, with a focus on the complexities of trust registration and the nuances of excluded arrangements. The scene captures the essence of deliberation and professionalism in the context of financial regulations.

Common exclusions include UK-registered pension schemes, regulated charitable arrangements and protections held solely as life cover. Court-imposed settlements and implied arrangements from joint ownership are also usually outside scope.

Special family examples: bereaved minor arrangements, vulnerable beneficiary funds, Child Trust Funds and Junior ISAs are often excluded. Will-related settlements that are wound up within two years of death may also be outside the list if assets and funds are fully distributed.

ExclusionTypical exampleWhen action may still be needed
Pensions & charitiesWorkplace pension; registered charity fundOnly if there is a UK tax link
Children’s accountsJunior ISA; small bank accountInvestment portfolios for a child usually need registration
Small asset ruleArrangements pre-6 October 2020 under £100Becomes registerable if more assets are added

One tricky area is bare trusts. A parent holding a child’s bank account may be excluded, but a portfolio held for a minor usually requires you to register. If there is any UK tax liability, exclusions do not apply and a failure to act can bring penalties. For agent guidance see our agent advice page.

What you need before you register a trust with HMRC

Getting the right information together first makes the online process far quicker and reduces costly errors. Gather core documents and check names and dates against the deed before you start.

A professional lead trustee sitting at a polished wooden desk, surrounded by neatly organized documents and a laptop displaying trust registration forms. The foreground features a close-up of the trustee, a middle-aged individual dressed in formal business attire, deeply focused on reviewing paperwork. In the middle ground, a stack of official trust documents and a legal dictionary are prominently displayed, symbolizing the complexity of managing a trust. The background showcases a softly lit office with bookshelves filled with law books and financial guides, creating an atmosphere of professionalism and trustworthiness. The lighting is warm and inviting, casting soft shadows and highlighting the diligent work environment. The image should evoke a sense of responsibility and attention to detail, suitable for a financial or legal context.

Core details HMRC expects

We advise collecting:

  • the arrangement’s name and key date(s);
  • full details for each trustee and the settlor, including contact info;
  • beneficiary identities or their description and any controlling person (often called a protector).

Lead trustee role and joint liability

The lead trustee is the main point of contact for the registration service. They keep logins and references safe and complete filings.

All trustees remain jointly liable for accuracy and any penalties. One person doing the admin does not remove responsibility from others.

When to appoint an agent

Appoint an agent when there are many beneficiaries, overseas links, or frequent changes. An agent can reduce mistakes and speed up the trust registration process.

TaskWho provides itWhy it matters
Identity detailsSettlor & trusteesMatches deed and avoids delays
Beneficiary listTrusteesShows who benefits and when
Controller detailsTrustees/settlorNeeded if a person can influence decisions

How to register, claim and manage your trust on the TRS

We guide you through the online steps so the paperwork feels straightforward and stays secure.

Setting up Government Gateway access as an organisation

Create a Government Gateway organisation account because you act on behalf of the arrangement. Keep your Gateway ID, password and security method safe.

Only the lead trustee can claim the record. If you use an agent on behalf of trustees, give clear written authority.

A sleek, modern government gateway building with a prominent entrance, symbolizing access to official services. In the foreground, a diverse group of professionals in business attire are engaging with a digital interface, reflecting the theme of registration and management. The middle ground features an array of official documents neatly arranged, symbolizing trust registration processes. In the background, soft-focus cityscape hinting at a formal governmental environment, with pleasant natural lighting illuminating the scene to evoke a sense of legitimacy and clarity. The atmosphere is one of professionalism and trust, with a calm, organized composition, shot from a slightly low angle to emphasize the gateway's significance.

Submitting registration and obtaining a UTR or URN

Submit the details on the trust registration service (trs). HMRC posts a letter with the URN for non-taxable listings or a UTR for taxable cases.

Claiming, safekeeping and avoiding lockouts

Claiming links the registered trs record to the lead trustee’s Government Gateway account. Match personal details exactly to HMRC’s records.

Three incorrect attempts can trigger a 30‑minute lockout. Keep the URN/UTR safe and share a copy with your solicitor to avoid delays in future administration.

  • Tip: store your URN/UTR with other estate documents.
  • Tip: present evidence of a trust registered on TRS when dealing with banks and providers to reduce hold-ups.

For official guidance on the process see manage your trusts registration service.

How to stay compliant after registration

A few simple habits will keep you compliant and avoid unnecessary penalties. Make a yearly plan and diary key dates so the burden does not fall on a single person at short notice.

A professional meeting setting depicting a diverse group of business professionals in formal attire, discussing changes to trust beneficiaries and trustees. In the foreground, a well-dressed woman holds a digital tablet displaying a graph related to trust registration. The middle ground features a round table with documents and a laptop, while diverse attendees, both men and women, are engaged in conversation, pointing at papers and diagrams. The background showcases a bright office with large windows allowing natural light to flood in, creating an optimistic and collaborative atmosphere. The angle is slightly overhead, capturing the dynamism of the meeting while maintaining focus on the discussion about compliance after trust registration.

Reporting changes within 90 days

Any change — new trustees, resignations, beneficiary additions or amended details — must be updated online within 90 days of the event. The 90-day rule also applies when a new arrangement is created.

Annual review and declaration for taxable arrangements

Taxable arrangements need an annual review. Even if nothing changed, make the formal annual declaration, usually by 31 January, so you avoid a penalty for failure to confirm details.

How TRS updates link to the SA900 tax return

Keep the central record and the trust and estate tax return consistent. If liable to Income Tax or Capital Gains Tax, trustees must file the SA900 and confirm the online entry is up to date when completing the form.

“Deliberate failure to keep details updated can incur penalties up to £5,000.”

ActionDeadlineWho acts
New trustee appointmentWithin 90 daysLead trustee
Beneficiary changeWithin 90 daysTrustees
Annual declaration (taxable)By 31 JanuaryTrustees / agent

Practical tip: keep one folder with your URN/UTR, deed and key dates. That saves time and reduces the risk of failure when dates arise.

Conclusion

A few simple steps now can save your family time and trouble later.

Many UK and overseas trusts are in scope, so it pays to check whether you need registration rather than assume older rules apply.

Identify if you must register, gather deeds and identities, choose a lead trustee, then complete the online process so you can prove status to banks and providers.

Keep your URN/UTR safe. That reference speeds dealings with the government and avoids holds on assets when you most need access.

Non-compliance can trigger an initial penalty of £100 and, if deliberate, wider anti‑money‑laundering consequences. Small annual checks prevent bigger problems.

If you are unsure whether your trusts created are in scope, speak to a solicitor or an agent experienced in registering a trust so you do it correctly first time.

FAQ

What is the register and why does it exist?

The register is an online service that records details about arrangements that hold assets for others. It exists to improve transparency for tax and anti-money‑laundering purposes, helping government bodies and financial organisations confirm who controls assets and who benefits. Think of it as an official record that shows who is responsible and who benefits, so everyone can check details when needed.

What information does the service hold?

The service keeps key details about the arrangement: dates, assets and property held, names and contact details of those who manage it, the settlor or creator, beneficiaries and any controllers. It also stores a unique reference number issued when a record is created, which organisations often request as proof.

What changed in October 2020 that affects registration?

From October 2020, the rules expanded. More types of arrangements became reportable and some small exemptions were removed. That means more households and estate arrangements must now be recorded, even if no tax is immediately due. The change aimed to increase clarity about who benefits from assets across more cases.

Why might a bank or solicitor ask for the service evidence and a URN?

Financial firms and legal professionals ask for the unique reference number to meet their own compliance checks and to confirm the arrangement is properly recorded. They use that evidence before accepting funds, opening accounts or completing property transactions. It speeds up due diligence and reduces the risk of delays.

Which UK-based arrangements with a tax liability must be registered?

Any arrangement with a UK tax liability must be recorded. That includes ones generating income or capital gains subject to UK tax. If you, as a trustee or manager, handle assets that create a tax obligation, you need to create a record and keep it up to date.

Do non-taxable UK arrangements ever need registration?

Yes. Some UK arrangements that do not currently owe tax still require a record because they fall within the reporting rules. This prevents ambiguity later if circumstances change. It’s safer to check the guidance rather than assume exemption.

When do overseas arrangements have to be registered?

Overseas arrangements must be recorded when UK-based managers are involved, when the arrangement holds UK property, or when there are UK business links that give rise to reporting duties. Presence of a UK connection can trigger a requirement even if most activity happens abroad.

What are the registration deadlines and the “within 90 days” rule?

New arrangements that become reportable must be recorded within 90 days of the event that triggers the duty — for example, the date of creation or the date a new person becomes a beneficiary. Significant changes to recorded data must also be updated within 90 days to stay compliant.

Which arrangements are typically excluded from registration?

There are common exclusions such as registered pension schemes, most charities, certain life insurance arrangements and trusts appointed by a court in legal proceedings. Exclusions reduce the burden where other regulatory frameworks already provide oversight.

What about vulnerable beneficiary arrangements and children’s accounts?

Special‑purpose arrangements for vulnerable beneficiaries, bereaved minors or certain children’s savings accounts can fall into excluded categories, but each case turns on the terms and purpose. If the arrangement meets the exclusion criteria, it does not need a record; otherwise it does.

Do will arrangements and estate-related records need registering?

Will arrangements and estate-related records that are wound up within two years of death are often excluded. If the estate administration extends beyond that or the arrangement continues, a record may be required. Trustees should check timing and document the winding‑up process clearly.

Are bare arrangements always excluded?

Not always. Bare arrangements where an adult beneficiary has a fixed entitlement are often excluded, but if the beneficiary is a minor or the arrangement holds certain assets, a record may still be necessary. The defining factor is who has legal control and whether the beneficiary’s entitlement is immediate.

What about small-asset arrangements created before October 2020 and the £100 rule?

Small-asset arrangements created before the rule change may be exempt if assets were below the threshold at that date. If values change or new assets are added, the exemption can lapse. It’s important to review historical cases to confirm whether the small-asset exception still applies.

What details do we need before starting registration?

Be ready with the arrangement’s date, a description of assets and their location, names and contact details of managers, the settlor or person who created it, beneficiaries and any controllers. You will also need identification and dates of birth for key people and any documentation that proves authority to act.

What does the lead manager do and why are trustees jointly liable?

The lead manager acts as the main contact for correspondence and takes responsibility for keeping the record updated. All managers remain jointly liable because everyone involved shares responsibility for accurate information and compliance. This encourages cooperation and timely updates.

When should we appoint an agent to manage the online service?

Appoint an agent if you prefer a professional to handle submissions, if you lack online access, or where the arrangement is complex. Agents can set up and administer the online record and liaise with authorities on your behalf. You’ll need to give written authority for them to act.

How do we set up Government Gateway access as an organisation?

Organisations must create a secure Government Gateway account and confirm identity details. The process requires contact information, an authentication method and proof of authority to act. Accurate details are vital to avoid access problems later.

How do we submit a record and get a URN or UTR?

You complete the online registration form, include all required details and submit it through the service. On acceptance, the system issues a unique reference number or a taxpayer reference for the arrangement. Keep that number safe — organisations will often ask for it as evidence.

How do we claim a registered record using a letter and the URN/UTR?

If you receive a letter with a reference, use that reference with your online account to claim the record. The process links the official record to your organisation or to you personally. Follow the instructions on the letter and match personal details exactly to avoid delays.

Where should we store the URN/UTR and why is it important?

Store the reference securely with other estate documents and pass it to professional advisers who need it. The reference speeds up dealings with banks, solicitors and tax advisers and prevents repeated verification checks. Treat it like any other important reference number.

How can we avoid lockouts by matching personal details exactly?

Use the same name spellings, dates and contact details used on official documents when you set up access. Small discrepancies can block access. If someone’s name changed, keep supporting documentation to hand so you can update records without delay.

When must we report changes to managers, beneficiaries or details?

Report material changes within 90 days. That includes adding or removing managers or beneficiaries, changes to addresses, or transfers of assets. Timely updates reduce the risk of penalties and keep the record accurate for any third parties who rely on it.

Are there annual review or declaration duties for taxable arrangements?

Taxable arrangements often require an annual review and a declaration that details submitted remain correct. This keeps the record in step with tax filings and ensures liability positions are clear. If tax is due, you must also complete the relevant return.

How do updates link to the estate tax return (SA900)?

The service feeds into wider tax administration. When asset positions or beneficiaries change, those updates can affect the estate tax return. Make sure both the online record and the estate return reflect the same information to avoid inconsistencies.

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