We explain, in plain English, what HMRC usually expects when trustees need to provide paperwork. Our aim is to help you prepare clear, complete files that speed review and reduce stress.
We set out the basics for preparing records so they are easy to check first time. We cover finding the right paperwork, scanning it properly and keeping a reliable copy for your own protection.
Sending scans is usually part of a wider compliance flow — registration, updates and declarations — not a one‑off task. We flag the common risks families face: unclear pages, missing sheets and exposure of personal data.
Throughout this short guide we will take you step by step through the Trust Registration Service (TRS). We keep the focus on UK trustees and homeowners — covering the practical habits that protect your family over the long term. Remember, a trust is not a separate legal entity in English law; it is a legal arrangement where trustees hold legal ownership of assets for the benefit of beneficiaries. That means the trustees are the ones HMRC deals with directly.
Key Takeaways
- Prepare clear files so HMRC can review them quickly — legible scans of every page, including signature blocks and schedules.
- Keep a reliable copy and a log of what you sent and when — this is your audit trail if questions arise later.
- Follow the registration steps calmly and methodically — the TRS is straightforward once you have the right identifiers.
- Avoid missing pages and protect personal data when sharing scans — redact anything HMRC does not need to see.
- All UK express trusts must be registered on the TRS within 90 days of creation, including bare trusts — this is a requirement under anti‑money laundering regulations.
- For practical help, see our step‑by‑step guide.
When HMRC needs trust paperwork and what “sending” looks like in practice
There are a few clear moments when HMRC will want to see supporting paperwork from trustees. Most of the time this links to the Trust Registration Service and the wider anti‑money laundering regulations introduced under the 5th Money Laundering Directive. We explain what to expect and how to act calmly.
How the Trust Registration Service and AML rules work
The trust registration process is mainly handled online through the Trust Registration Service (TRS). Since the 5th Money Laundering Directive was transposed into UK law, all UK express trusts — including bare trusts, discretionary trusts and interest in possession trusts — must be registered, not just those with a tax liability. This helps HMRC meet anti‑money laundering requirements and makes records easier to check. Importantly, the TRS register is not publicly accessible (unlike Companies House), so beneficiary and settlor details remain private.
Taxable versus non‑taxable: different requirements
Taxable trusts — those with income, capital gains or an inheritance tax liability — usually have a Unique Taxpayer Reference (UTR) and link into ongoing tax administration. They require fuller evidence, more frequent updates and annual declarations. Non‑taxable trusts still need to be registered and provide core identity details about the settlor, trustees and beneficiaries, but the ongoing reporting burden is lighter. If a trust’s circumstances change and it becomes taxable, you must update the register promptly and HMRC will issue a UTR.
Key deadlines and common triggers
Only the lead trustee (or an authorised agent) can claim and manage a trust on the register. Trustees must update the register within 90 days of any significant changes — this is a strict deadline, not a guideline.
- Typical triggers for updates: changes to trustee details (appointment or retirement), beneficiary details, settlor information, the trust’s tax status, or changes to control and ownership of trust assets.
- Mismatched details slow progress. Keep names, addresses and dates consistent across your trust deed, the TRS registration and any correspondence with HMRC.
- One simple filing routine — one folder, one naming pattern, one version history — saves considerable time when you are asked for evidence. As Mike Pugh says, “Plan, don’t panic.”
Preparing scanned trust paperwork for compliance-ready submission
Collect the key files that prove who acted, when they acted, and why each change took place.
What to keep ready: start with the signed trust deed — this is the founding instrument that sets out the trust’s terms, the settlor, the trustees and the class of beneficiaries. Also gather any deeds of appointment or retirement of trustees, deeds of variation, letters of wishes, official HMRC correspondence and the forms or records that explain later changes to the trust.
How to order and name files: use a clear pattern such as TrustName_DocumentType_Date_V1.pdf. Keep pages in sequence. Place supporting records immediately after the document they explain. For example, if a deed of appointment replaced a trustee, put the appointment deed directly after the original trust deed.
Quality and format: use PDF for multi‑page packs and scan at 200–300 dpi for legibility. Check that every page is legible, flat and complete — especially signature blocks, schedules and any TR1 forms (used for property transfers into trust). Blurred or cropped signatures are a common cause of HMRC queries.
Privacy and storage: redact sensitive lines that HMRC does not need to see (for instance, unrelated financial details) and store copies securely — both digitally (on an encrypted device) and physically. Record the date each pack was prepared and who approved it for submission.
- Create an audit trail: date of creation, version number, approver name and what was sent to HMRC.
- Before‑upload checklist: correct file names, page order, readable images, URN or UTR included on the cover sheet, and saved backup.
- For extra help see our register a trust as a trustee guidance.
| Pack Item | Why it matters | File example |
|---|---|---|
| Signed trust deed | Shows the original terms, settlor, trustees and beneficiary class | SmithFamily_Deed_2020_V1.pdf |
| Deeds of appointment or variation | Explains any changes to trustees, beneficiaries or terms | SmithFamily_Variation_2022_V1.pdf |
| HMRC letters, forms & TR1 | Evidence of correspondence and property transfers | SmithFamily_HMRCLetter_2023_V1.pdf |
Access and identification essentials before you start
Before you log in, gather the identifiers and access tools you will need so the process flows without stress. Having everything to hand before you start prevents frustrating lockouts and wasted time.
Government Gateway: pick an Organisation account
To claim and manage a trust on the Trust Registration Service, the lead trustee should use an Organisation account on Government Gateway. This signals to HMRC that you are acting in your capacity as trustee of the trust — a legal arrangement — rather than as a private individual. It is an important distinction because a trust has no separate legal personality; the trustees are the legal owners, and the Organisation account reflects that representative role.
Keeping your ID, password and access code safe
When you set up Government Gateway you will receive an emailed access code. It expires after 30 minutes, so be ready to use it promptly. A 12‑digit Government Gateway ID is then generated. Keep that ID and your password in a secure place — ideally both a secure digital password manager and a physical record stored with your trust deed.
- Do: store the ID in a secure digital folder and a physical file kept with your trust paperwork. Use a strong, unique password.
- Don’t: share passwords by unsecured email or text. If a trustee retires or is replaced, update access details immediately.
Using the URN or UTR correctly
After registration HMRC sends a letter with a URN (a 15‑character Unique Reference Number for the trust on the register) or a UTR (a 10‑digit Unique Taxpayer Reference for taxable trusts). Treat that reference like a passport number — it links your trust’s file on the TRS and speeds any later correspondence. Include it on any paperwork you submit to HMRC.
If you want help getting set up, see our guide to register online.
How to send scanned trust paperwork to HMRC via the Trust Registration Service
Start by having the trust reference (URN or UTR) and the lead trustee’s details ready — this makes the online claim quick and calm.
Claiming as lead trustee with the URN or UTR
Only the lead trustee may claim the trust record on the Trust Registration Service. Use the URN or UTR exactly as shown on HMRC’s letter — even a single digit wrong will cause a mismatch.
Go to “Manage Your Trust’s Details” on GOV.UK, sign in or create a Government Gateway account and choose an Organisation account. Then enter the trust reference and follow the on‑screen steps. A trust requires a minimum of two trustees, so ensure you know who the other trustees are and have their agreement before making changes.
Passing security checks for trustees and beneficiaries
The service checks names, dates of birth and addresses against the register. Answers must match the original registration details exactly — the details you provided when the trust was first registered on the TRS.
Important: three wrong attempts lock you out for 30 minutes. If that happens, pause, check the original trust deed and your registration records, and try again. Do not guess — mismatched names (particularly middle names or maiden names) are the most common cause of lockouts.
Working with an agent or solicitor
The TRS asks whether an agent manages the online register on the trustees’ behalf. Select yes if a solicitor or professional agent maintains the record — for instance, if MP Estate Planning manages the TRS registration for you.
Choosing the correct option changes who receives email alerts and how updates flow through the system. However, it does not remove the lead trustee’s legal responsibilities. The trustees remain legally responsible for ensuring the register is accurate and up to date.
Submitting and saving evidence
When you update or declare changes, keep clear copies of what you upload and every confirmation screen. This is your proof of compliance.
“Save confirmation pages, reference numbers and any downloaded declarations — they prove what you filed and when. Good record‑keeping is not optional, it is part of being a trustee.”
- Complete the online step and note the reference number shown on screen.
- Download or print the confirmation page and any PDF receipts.
- Store these with your trust deed file and record who submitted the change, the date and what was changed.
| Action | Why it matters | What to save |
|---|---|---|
| Claim on TRS | Establishes the lead trustee on the register | Claim confirmation and reference number |
| Answer security questions | Prevents unauthorised access to the trust record | Screenshot if needed and original registration details |
| Declare changes | Keeps the register accurate within the 90‑day deadline | Declaration receipt, date and details of change |
Updating trust details after registration and keeping records accurate
Small changes can trigger a requirement to update the register — spot them early. Trustees must update the Trust Registration Service within 90 days of any changes to keep the record accurate and to meet their legal obligations. Failure to do so risks penalties of up to £5,000.
What counts as a change and how to use “Make changes and declare”
HMRC treats the following as reportable changes: updates to trustee names or addresses, appointment or retirement of trustees, changes to beneficiary details, changes to the settlor’s details, changes to the trust’s tax status, and alterations to control or ownership of trust assets. Even updating a phone number counts.
On the TRS select “Make changes to the Trust and declare”. Follow the prompts, upload any supporting files (such as a deed of appointment for a new trustee) and save the confirmation. Keep a dated record showing the nature of the change, the date it took effect and when you declared it on the register.
How to avoid lockouts and delays
Before answering security questions, check the original registration entry carefully. Guessing causes lockouts — and once locked out, you must wait 30 minutes before trying again. Gather exact names (as they appear on the trust deed), dates of birth and addresses first. Cross‑reference with your original TRS registration record.
“If details don’t match, pause and compare with your original trust deed and registration record before retrying. Rushing causes more problems than it solves.”
Maintaining access and changing phone numbers for codes
Security codes often arrive by text or phone call. If the registered phone number changes, call the TRS helpline on 0300 123 1072 to update access details before you need to log in. Waiting until you need a code and cannot receive it causes unnecessary delays.
We recommend keeping a dated changes log showing what was changed, the effective date, who authorised the change and when you updated the register. This record proves you acted within the 90‑day deadline and protects trustees if questions arise later. Good administration is not a burden — it is a core part of a trustee’s duty.
For a step‑by‑step walkthrough of the registration and updating process, see our guide to registering a trust.
Tax and reporting responsibilities linked to your trust paperwork
We explain how your paperwork supports tax reporting and why that matters for trustees in England and Wales.
Your records form the story behind each number on a tax return. They show how income arose, what was sold and why distributions to beneficiaries happened. Trustees are personally liable for ensuring tax is paid correctly, so clear paperwork is not just good practice — it is essential protection for the trustees themselves.
For taxable trusts with a UTR, trustees must make an annual declaration on the TRS confirming details are up to date. The deadline for the annual Self Assessment trust and estate tax return (SA900) is 31 January following the end of the tax year (which runs 6 April to 5 April). The paper filing deadline is 31 October.
Annual declaration timing and penalties
Even if nothing changed during the year, a declaration is required to confirm the register remains accurate. Missing this is not a minor oversight — deliberate failure to keep the register updated can result in a penalty of up to £5,000. We say this plainly so you treat trust administration as a core trustee duty, not an optional task.
How records link to the main tax areas
Good files make Income Tax, Capital Gains Tax (CGT) and Inheritance Tax (IHT) far easier to handle. Here is what HMRC expects trustees to evidence:
- Income Tax: rental statements, bank interest certificates and expense records back up declared income. Trust income is taxed at 45% for non‑dividend income (the trust rate) and 39.35% for dividend income, with the first £1,000 taxed at the basic rate.
- Capital Gains Tax: sale contracts, professional valuations and disposal notes explain gains calculations. Trustees pay CGT at 24% on residential property gains and 20% on other assets. The trust annual exempt amount is currently half the individual level.
- Inheritance Tax: the trust deed terms, beneficiary records and distribution records show how assets are treated for IHT purposes. Discretionary trusts fall under the relevant property regime, which can involve 10‑year periodic charges (maximum 6% of the trust value above the nil rate band) and exit charges when assets leave the trust. For most family homes held in trust with a value at or below the nil rate band of £325,000, these charges are often nil.
When to complete a tax return (including SA900)
Trustees must file the Self Assessment trust and estate tax return (SA900) when the trust has taxable income or chargeable gains. This is separate from the TRS annual declaration — both may be required. Keep dates, valuations and distribution notes with your files so an accountant can prepare an accurate tax return efficiently, without having to chase you for missing information.
“Clear records speed reporting and reduce the risk of costly mistakes. Not losing the family money provides the greatest peace of mind above all else.”
- Keep income paperwork (rental receipts, interest statements, dividend vouchers) organised by tax year.
- Save disposal evidence (contracts, valuations, solicitor completion statements) for CGT calculations.
- Record all distributions to beneficiaries with dates, amounts and the trustee resolution authorising each distribution.
If income or gains change significantly, seek advice early. A short call to a specialist accountant or your trust solicitor often prevents bigger problems later. For guidance on keeping digital records see create digital records.
Conclusion
Good practice begins with a tidy digital folder and a calm routine — not perfection, but consistency.
A few simple steps cover most needs: set up your Government Gateway access, claim the trust record on the TRS, make timely registration updates within 90 days and keep one clear file of all your trust paperwork alongside a dated log of what you submitted and when.
Keep legible scans, consistent file names and a dated audit trail so your records prove what you did and when. This is not just about compliance — it protects you personally as a trustee.
Plan for deadlines — update the TRS within 90 days of any change and meet annual requirements if the trust is taxable. The SA900 return and TRS annual declaration have separate deadlines, so keep both in your diary. Take each part of the process in small, steady steps.
If anything feels unclear, seek professional guidance. As Mike Pugh says, “The law — like medicine — is broad. You wouldn’t want your GP doing surgery.” Trust administration involves tax, property and fiduciary duties — it is worth getting specialist help. Clear admin protects family assets and makes the whole trust journey far easier for everyone involved.