Quick answer
HMRC’s Trust and Estates Edinburgh office handles certain trusts and estates with a Scottish connection — most notably trusts whose trustees are predominantly Scottish-resident, Scottish probate (Confirmation) cases, and certain Scottish-specific reliefs. The main UK Inheritance Tax processing (IHT400, IHT100, IHT403) is handled by the HMRC Inheritance Tax team at BX9 1HT regardless of geography, but Scotland-resident trusts may correspond with the Edinburgh office for trust tax returns (SA900) and trustee enquiries. Telephone contact for the Trust and Estates team: 0300 123 1072. This guide explains what the Edinburgh office actually handles, when to use it vs the main HMRC Inheritance Tax team, the current 2026 contact channels, and the realistic response times for trustees and personal representatives.
Last reviewed: 24 May 2026 by the MP Estate Planning editorial team. Jurisdiction: England and Wales. Scotland and Northern Ireland have different probate and intestacy rules; the IHT thresholds are UK-wide.
Three rule changes you may need to consider (2026/27)
1. Pensions become subject to IHT from 6 April 2027. Most unused defined-contribution pension pots currently sit outside the estate for IHT — that ends on 6 April 2027 (gov.uk policy paper). HMRC estimates around 10,500 estates will face IHT for the first time as a result.
2. Business and agricultural property reliefs capped at £2.5m per person from 6 April 2026. Above the cap, only 50% relief applies — effective IHT of 20%. AIM shares dropped to 50% relief and do not use the £2.5m allowance (Saffery — APR/BPR reforms).
3. The NRB, RNRB and £2m taper threshold are frozen until 5 April 2031 following the 2024 and 2025 Budgets (gov.uk — NRB and RNRB freeze). With inflation, more estates will be pulled into IHT each year — a process commonly called “fiscal drag.”
We explain what people usually mean when they search for the HMRC Trust and Estates Edinburgh address. We set out how this team fits into the wider HMRC system and what to expect when you get in touch.
First, most queries are best sent to the address shown on your paperwork. That avoids delays. We’ll show the common posting routes, including BX9 details, so you send forms to the right place first time.
Next, we outline the main tax areas that overlap here: Income Tax, Capital Gains Tax and Self Assessment. We keep explanations plain so you can act quickly.
Finally, we list the key facts to gather before you phone or write. This saves time and reduces repeated enquiries. Whether you are dealing with bereavement administration, an ongoing trust, or a simple tax query, we use a calm, step‑by‑step approach to guide you through with clear, practical notes.
Key Takeaways
- Use the address on your own HMRC letter where possible to avoid delay.
- Common tax issues include Income Tax, Capital Gains Tax and Self Assessment — plus trust‑specific returns (SA900).
- We signpost common posting options, including BX9 addresses.
- Gather documents — including the Unique Taxpayer Reference (UTR), National Insurance number and key dates — before you contact HMRC to speed up enquiries.
- This short guide is a practical, navigational starting point — not a substitute for specialist legal advice on trusts or inheritance tax planning.
HMRC Trust and Estates Edinburgh office responsibilities and what this team typically handles
This office handles routine administration and any tax matters that flow from an estate after someone’s death, or from a trust — whether a lifetime trust set up during the settlor’s life or a will trust that takes effect on death. We explain, in clear terms, the main areas you will meet and why cases sometimes move between teams.
Trust and estate tax touchpoints: Income Tax, Capital Gains Tax and Self Assessment links
Every estate or trust can trigger several taxes at different stages. You may see Income Tax on rent, savings interest or dividends received by the estate or trust, Capital Gains Tax (CGT) when an asset is sold or transferred, and Self Assessment reporting when the trust or estate needs to submit a return.
For trusts specifically, trustees must file an SA900 trust and estate tax return each year if the trust has taxable income or gains. Trust income is taxed at 45% on non-dividend income (the trust rate) and 39.35% on dividends, with the first £1,000 taxed at the basic rate. CGT on trust disposals is charged at 24% on residential property and 20% on other assets, with the annual exempt amount currently set at half the individual level (currently £1,500 for trustees). These rates apply regardless of whether the trust is a discretionary trust, a bare trust or an interest in possession trust — though the way the tax burden falls on trustees versus beneficiaries differs depending on the trust type.
We often see cases passed between HMRC teams. That happens when a file covers PAYE, Self Assessment or specific compliance checks. A property sale might need CGT work, while ongoing rental income requires Income Tax handling. If an estate is still in administration, income received during that period has its own tax treatment before it is distributed to beneficiaries. Inheritance tax (IHT), it is worth noting, is handled by a separate HMRC team — not the Trust and Estates Edinburgh office — so IHT queries should be directed to HMRC’s IHT helpline or the Inheritance Tax team at their own postal address.
When you should follow the address on your HMRC letter rather than a generic office address
Use the contact details on any letter you receive. That is usually the fastest route. Letters often start compliance actions or set deadlines. Using a generic contact can slow a reply or cause you to miss an important deadline.
If you have lost the letter, check the category of your query: Self Assessment, PAYE/NIC, trust returns, or complaints. If unsure, note key dates (such as the tax year end, date of death, date the trust was created, or any asset disposal dates) and the type of income or gain before you call or write. For trust-related queries, have the trust’s own UTR to hand — this is separate from any individual’s UTR. If you are a trustee acting in that capacity, you should be able to find the trust UTR on any previous SA900 return or on the Trust Registration Service (TRS) record.
HMRC Trust and Estates Edinburgh address, contact and where to send your enquiry
Before you post or call, gather the key identification details that let HMRC staff find your file quickly.
Have the relevant National Insurance number, the trust or estate UTR, the tax year in question, and key dates to hand. These include the date of death (for estate administration), the date the trust was created (shown on the trust deed), and any disposal dates for CGT purposes. Missing dates slow an enquiry considerably. If an estate is in administration and a Grant of Probate (or Letters of Administration in an intestacy) has been issued, have that reference available too.
Before you write or call: have your National Insurance number and key dates to hand
We suggest copying reference numbers onto every form you submit. Use recorded delivery for urgent or time-sensitive papers. If a specific HMRC office has written to you, reply to that office — not a general line. For trust queries, always quote the trust UTR (which is a separate reference from any individual’s Self Assessment UTR).
Common postal routes
| Service | Purpose | Postal details | When to use |
|---|---|---|---|
| Self Assessment (general enquiries) | Assessment queries, filing help | Self Assessment, HM Revenue and Customs, BX9 1AS, United Kingdom | Use for returns and general assessment questions — including estate Self Assessment returns |
| Change of details | Update personal or contact info | HM Revenue and Customs – Self Assessment, PO Box 4000, Cardiff, CF14 8HR | Send address or name changes here — for example, notifying HMRC of a new personal representative following a death |
| Employer and NI routes | Employer enquiries, NI contributions, PAYE payments | PT Operations North East England, BX9 1BX / BX9 1AN; HMRC Direct, BX5 5BD | Payroll, contributions queries and payment issues |
Practical tip: keep copies of all forms, write the reference on each page and post with a tracked service. If you act as an agent for a trust or estate, see our guidance on registering a trust as an agent. Remember that all UK express trusts — including bare trusts — must be registered with HMRC’s Trust Registration Service (TRS) within 90 days of creation, following the requirements of the 5th Money Laundering Directive. The TRS register is not publicly accessible (unlike Companies House), so registration does not expose your family’s trust arrangements to the public.
Telephone numbers, phone and accessibility options for HMRC trust and estate enquiries
When you need to call HMRC about a trust or estate tax matter, knowing the right phone route saves time and stress.
Finding the correct contact
Match your issue to the correct telephone line: Self Assessment lines for returns (including SA900 trust returns), National Insurance or PAYE lines for contributions and payroll, or the number shown on any HMRC letter if it is case‑specific. Trust and estate queries often have a dedicated helpline number — check the GOV.UK trusts page for the most up-to-date number, as HMRC periodically updates its contact details.
What you’ll be asked and what to have ready
- Identity checks: name, date of birth and National Insurance number where relevant. For trust calls, the trust name and UTR.
- Reference details: Unique Taxpayer References, the reference on any HMRC letter, or any National Insurance number linked to the case.
- Key dates: tax year in question, date of death (for estates), date the trust deed was executed, or disposal dates for CGT assessment purposes.
Calling as an agent requires authority. HMRC will ask for client consent or formal agent authorisation (such as a 64-8 form already on file). If you are a trustee acting on behalf of the trust, confirm your role and have the trust deed reference available. It is worth noting that a trust is a legal arrangement, not a legal entity with its own separate personality — the trustees are the legal owners of the trust property and act on behalf of the trust in all dealings with HMRC.
If you are redirected, asked to write in, or told to use the contact on your letter, follow that route. Ask for reasonable adjustments or relay services if you need them — HMRC provides these as standard.
We recommend calling at quieter times (early morning or mid-afternoon tend to have shorter waits) and keeping notes of the call reference number to speed any follow‑up.
Complaints, debt management and escalation routes (BX9 complaint addresses)
If you need to escalate a problem with HMRC’s handling of a trust or estate matter, there are clear postal routes for complaints and debt management that you should use.
When to complain: use a complaint for delays, poor communication or repeated errors in handling your trust or estate matter. If you need a technical review or want to appeal a tax assessment, follow the formal appeal route instead (you normally have 30 days from the date of the assessment to lodge an appeal). Keep the focus on the service failure and the effect on you, the trust or the estate.
Income Tax and PAYE complaints
PAYE and Self Assessment Complaints, HM Revenue and Customs, BX9 1AB. Use this for Income Tax or Self Assessment service failures and PAYE reporting problems — including cases where estate income has been incorrectly assessed or where a trust’s SA900 return has been mishandled.
National Insurance and employer complaints
NIC and EO Complaints, HM Revenue and Customs, BX9 1AA. Send employer or National Insurance complaints here — for example, where income records or employer payment queries affect the estate administration or where a deceased person’s NI record needs correcting.
Debt management complaints
Debt Management Complaints, HM Revenue and Customs, BX9 1JT. If collection action or a payment plan relating to an estate or trust liability is causing hardship, explain the impact clearly and ask for a halt or review while you provide supporting documents. Executors and trustees have personal liability for unpaid tax on the estate or trust they administer, so getting this resolved promptly is essential.
Compliance check or enquiry complaints
Customer Compliance Complaints, HM Revenue and Customs, BX9 2AB. Use this for complaints about how a compliance check or enquiry into a trust or estate was handled. Keep the complaint factual and stick to process and treatment — HMRC’s own Charter sets out the standards you can expect.
Keep copies of timelines, letters and reference numbers. State clearly what outcome you want and by when.
If you are an agent, note that the online complaints form requires sign‑in via Government Gateway and cannot be used by an agent directly. You must either ask the taxpayer (or personal representative) to submit the online form, or write to the relevant BX9 unit yourself. Include timelines, forms submitted, reference numbers and a clear description of the problem and the resolution you are seeking.
If the complaint is not resolved to your satisfaction, you can escalate to the Adjudicator’s Office, and ultimately to the Parliamentary and Health Service Ombudsman via your MP.
For wider guidance on inheritance tax matters linked to estates and trusts, see our non-domicile inheritance tax guide.
Conclusion
We recommend a simple rule: use the contact shown on any official HMRC letter, or select the correct category from the routes above if you have no letter to hand.
Start by confirming the office to which you will send forms. If you must post, use the BX9 routes or the Cardiff PO Box noted in this guide. That gets papers to the right team quickly and avoids unnecessary delays in the administration of the trust or estate.
Prepare the relevant National Insurance number, trust or estate UTR, key dates and clear references before you call or write. Have copies of all forms and note posting dates. Track replies to avoid repeat enquiries.
It is worth remembering that trust and estate tax obligations sit alongside the wider question of inheritance tax planning. The inheritance tax nil rate band has been frozen at £325,000 (gov.uk — Inheritance Tax) per person since 2009 — and is confirmed frozen until at least April 2031. With the average home in England now worth around £290,000, more families than ever are being caught by the 40% IHT charge on estates above the threshold. If you are administering an estate or acting as a trustee, understanding how Income Tax, CGT and IHT interact is essential — and often benefits from specialist advice. As we often say at MP Estate Planning, trusts are not just for the rich — they’re for the smart. England invented trust law over 800 years ago, and proper planning remains one of the most effective ways to protect your family’s wealth.
Next step: keep a simple checklist, use tracked post, and ensure agent authority is in place for complaints or sensitive enquiries. This helps speed assessment, payment and any Capital Gains Tax or Income Tax queries. If you need to register a trust with HMRC’s Trust Registration Service, remember the 90-day deadline from the date the trust was created — this applies to all UK express trusts, including bare trusts.
FAQ
What does the HMRC Trust and Estates Edinburgh office handle?
The office handles tax matters linked to estates in administration and trusts (both lifetime trusts and will trusts). That includes Income Tax on estate or trust income, Capital Gains Tax arising on asset disposals after death or within a trust, and processing Self Assessment returns — including the SA900 trust and estate return. They also help executors, personal representatives and trustees understand filing obligations and payment deadlines. It is worth noting that inheritance tax (IHT) is handled by a separate HMRC team, so IHT queries should be directed elsewhere.
Which specific tax touchpoints should I expect for an estate?
Key touchpoints are Income Tax on income received by the estate during the administration period, Capital Gains Tax on assets sold or transferred, and Self Assessment where returns must be submitted by executors or personal representatives. You may also need to deal with PAYE for any employees of a deceased person’s business, National Insurance queries if relevant, and — separately — inheritance tax (IHT), which is handled by HMRC’s IHT team rather than the Trust and Estates Edinburgh office. For ongoing trusts, trustees face annual Income Tax at 45% on non-dividend income (39.35% on dividends, with the first £1,000 at the basic rate) and must file an SA900 each year. CGT on trust disposals is charged at 24% on residential property and 20% on other assets.
When should I use the address on an HMRC letter instead of a general office address?
Always use the address stated on the HMRC letter you received. That address links your case to the correct team and reference number. A generic office address can delay processing or lead to misrouting. If in doubt, call the number on the letter first to confirm where to direct your response.
What should I have ready before I write or call about an estate?
Have the deceased’s National Insurance number, dates of death and Grant of Probate (or Letters of Administration if there was no will), and any tax reference numbers — including the estate or trust UTR — to hand. Also prepare key dates, bank details for refunds, and copies of the will or Grant of Probate if you have them. For trust queries, have the trust deed and its UTR available. If you are a trustee, confirm that the trust has been registered with HMRC’s Trust Registration Service (TRS), as all UK express trusts must be registered within 90 days of creation. Having these details ready speeds up enquiries and reduces follow-up requests.
Where should I send general Self Assessment enquiries?
For general Self Assessment correspondence, use the national Self Assessment postal address: HM Revenue and Customs, BX9 1AS, United Kingdom. Include the tax reference (UTR) and the executor’s or trustee’s contact details to avoid delays.
Where do I send changes of details for Self Assessment?
To notify a change of details for Self Assessment, use: HM Revenue and Customs, Self Assessment, PO Box 4000, Cardiff, CF14 8HR. Make sure to state the taxpayer’s reference and the exact nature of the change — for example, notifying HMRC of a new personal representative following a death.
Where should employer general enquiries be sent?
Employer general enquiries for the North East region can be directed to: PT Operations North East England, HM Revenue and Customs, BX9 1BX. Include your PAYE reference and employer name for quicker handling.
What is the address for National Insurance contributions queries?
Queries about National Insurance contributions for employers in the North East are handled at: PT Operations North East England, HM Revenue and Customs, BX9 1AN. Provide the relevant employer or contributions reference.
Where do employers send PAYE payment enquiries?
For PAYE payment enquiries, correspondence can be sent to HMRC Direct, BX5 5BD. Note the payment reference and payroll period so staff can identify the transaction quickly.
How do I find the correct telephone contact route for HMRC trust and estate enquiries?
Check the GOV.UK HMRC contact pages or your official letter for the right phone number. Trust and estate matters often have a dedicated helpline. When you call, be ready with the National Insurance number, trust or estate UTR, dates of birth or death, and a brief summary of the issue. That helps the adviser route you to the correct team quickly. If you are a trustee, have the trust name and the settlor’s details available.
What information will I be asked for on a call?
You’ll be asked to confirm identity and case details: National Insurance number or trust/estate UTR, full name, date of birth or death, and postcode. For agent calls, you’ll need authority details — typically a 64-8 on file — or your agent reference number. For trust calls, have the trust name and the settlor’s details available. Remember that a trust is a legal arrangement (not a separate legal entity), so the trustees are the people HMRC will deal with directly.
Where do I send Income Tax and Self Assessment complaints?
Complaints about Income Tax or Self Assessment should be sent to: PAYE and Self Assessment Complaints, HM Revenue and Customs, BX9 1AB. Include case references, the trust or estate UTR, and any previous correspondence.
Where do I send National Insurance and employer complaints?
For National Insurance and employer-related complaints use: NIC and EO Complaints, HM Revenue and Customs, BX9 1AA. Provide the employer PAYE reference and contact details for a timely response.
What address handles debt management complaints?
Debt management complaints go to Debt Management Complaints, HM Revenue and Customs, BX9 1JT. List account numbers, amounts involved and steps already taken to resolve the problem. If you are an executor or trustee, make clear your role and the capacity in which you are writing — this is important because executors and trustees carry personal liability for unpaid tax on the estate or trust they administer.
Where should I send complaints about compliance checks or enquiries?
For compliance check or enquiry complaints, write to Customer Compliance Complaints, HM Revenue and Customs, BX9 2AB. State the date of the compliance contact, the officer’s reference if you have it, and whether the check relates to a trust return, estate return or individual Self Assessment.
What should an agent do if they cannot use the online complaints route?
If an agent cannot use the online route — which requires a Government Gateway sign-in and cannot be accessed by agents — they should send a signed letter on behalf of the client to the appropriate complaints postal address listed above. Include proof of agent authorisation (such as confirmation that a 64-8 is on file), the client’s tax or National Insurance reference, and the trust or estate UTR if applicable. If the complaint is not resolved satisfactorily, it can be escalated to the Adjudicator’s Office, and ultimately to the Parliamentary and Health Service Ombudsman via your MP.
HMRC trust and estate phone lines: opening hours, best times to call and contacting from abroad
Knowing when to call HMRC can be as important as knowing the right number. Executors and trustees are typically working to tight statutory deadlines, and spending forty minutes in a queue only to be cut off before close of business is a frustration our team hears about regularly. The guidance below reflects current HMRC published information, though hours and routing can change, so it is worth confirming on GOV.UK’s bereavement and deceased estate contact page before you dial.
HMRC phone line hours for trust and estate enquiries
The main HMRC Trust and Estates helpline — generally reached on 0300 200 3300 — typically operates Monday to Friday, 8am to 6pm. The lines are closed on weekends and UK bank holidays. The Self Assessment helpline, which handles some overlapping estate income tax queries, operates on the same Monday to Friday, 8am to 6pm schedule. Saturday calling is generally not available for these lines, so executors should plan accordingly if a week-day window is difficult to find.
In our experience, call volumes are highest on Monday mornings and in the two weeks immediately following a bank holiday weekend. Mid-week mornings — Tuesday to Thursday, between 8am and 9:30am — may offer shorter wait times, though this cannot be guaranteed and varies seasonally. The weeks immediately before the 31 January Self Assessment deadline and the six-month post-death IHT filing window also tend to see elevated demand.
Can I speak to a real person at HMRC?
Yes, in most cases you can reach a human adviser rather than an automated system, though the initial call routing will ask you to select options before connecting you. Having your National Insurance number, the deceased’s date of death, and any HMRC reference from prior correspondence ready at the point of connection will help the adviser locate the correct record quickly and reduce the risk of being transferred to a second queue. If you are calling about Inheritance Tax specifically, note that the IHT helpline is a distinct routing within the same number.
Contacting HMRC from abroad about a UK estate or trust
If you are an executor or trustee based outside the United Kingdom, you may be unable to dial the 0300 number from a foreign line without incurring significant costs, and some international carriers do not connect 03 numbers at all. HMRC publishes an international dialling route of +44 135 535 9022 for those calling from outside the UK, though you should verify the current number on the relevant GOV.UK contact page before travelling or calling from overseas, as these details are periodically updated. Written correspondence remains a practical alternative for non-UK-based enquirers, particularly where the matter concerns an IHT400 submission or estate income tax, and postal routes are set out elsewhere in this article. Be aware that response times by post may extend beyond domestic timescales, so build additional lead time into your planning if you are administering a UK estate from abroad.
Common questions about contacting HMRC for trust and estate matters
What time does HMRC open UK?
For trust, estate and Self Assessment enquiries, HMRC phone lines typically open at 8am and close at 6pm, Monday to Friday. There is generally no weekend or bank holiday service on these lines. If you are unsure which line applies to your query, the HMRC contact directory on GOV.UK lists current hours for each helpline and is the most reliable source, as hours can change at short notice.
What services are available 24/7 at HMRC?
A number of HMRC digital services are available around the clock without needing to call or write. These include the Personal Tax Account, where you can view tax codes and Self Assessment records; the HMRC Online Services portal for submitting returns and making payments; and the Trust Registration Service (TRS), which trustees use to register and update trust details. However, speaking to an adviser, submitting paper IHT forms, or requesting a certificate of deduction all require either a phone call within opening hours or a postal submission — none of these are available through a fully automated 24/7 channel. Where a query is straightforward, HMRC’s digital assistant on GOV.UK is available outside office hours, though it cannot access your account or act on your behalf.
Where to send IHT forms?
The IHT400 (Inheritance Tax account) and most supporting IHT schedules should be posted to HMRC Inheritance Tax, BX9 1HT. This is a processing postcode rather than a geographic address, and it routes directly to the Inheritance Tax teams. Importantly, the IHT400 must typically be submitted within six months of the end of the month in which the person died — missing this deadline will generally result in interest accruing on any tax due, so our team would encourage executors to confirm their submission date early in the administration process. If you have received a specific reference number or covering letter from HMRC Inheritance Tax, always use the address and reference shown on that correspondence in preference to a generic postal address.
What is postcode BX9 1AN?
BX9 1AN — along with related postcodes such as BX9 1HT and BX9 1LT — is a non-geographic HMRC processing postcode. These postcodes do not correspond to a physical street address in the conventional sense; they are internal routing codes used by Royal Mail to direct post to the correct HMRC processing centre. BX9 1AN is most commonly associated with HMRC complaints correspondence. If you are escalating a complaint — for example, where HMRC has not responded to an IHT400 submission within a reasonable period — the BX9 complaint addresses described earlier in this article are the appropriate routes. Our team would generally suggest that if HMRC has not acknowledged a submitted IHT400 after approximately 30 days, it is reasonable to consider escalating, and in cases of prolonged silence the Adjudicator’s Office provides an independent escalation route that GOV.UK itself does not proactively signpost.