Preparing and filing a Trust & Estate Tax Return in the UK is a crucial responsibility for trustees and executors. It ensures that all income and capital gains within a discretionary trust, a life interest trust, or a deceased person’s estate are reported accurately to HM Revenue & Customs (HMRC) and that the correct tax is paid.
This process can be complex, but it is essential for compliance with UK tax legislation. Moreover, timely and precise tax return filing helps avoid penalties and protects the interests of beneficiaries.
Here we explain what Trust and Estate Tax Returns involve, who needs to file them, and how our team at Spherical can assist you in navigating these obligations smoothly.
Understanding Trust and Estate Tax Returns
In the UK, trusts and estates are taxed as separate entities, and they often require an annual tax return, form SA900, also known as the Trust and Estate Tax Return.
Trustees of trusts and personal representatives (executors or administrators) of estates have a legal duty to file these tax returns on behalf of the trust or estate. The Trust and Estate Tax Return reports all taxable income, such as interest, dividends, or rental income and capital gains realised by the trust or estate during the tax year.
Completing this return is part of the UK Self Assessment system. Therefore, trustees and executors must gather detailed financial information, calculate any tax liabilities, and submit the return to HMRC by the deadline.
Not only does this ensure compliance with HMRC regulations, but also it provides transparency to beneficiaries about the trust’s or estate’s finances. Filing accurately and on time is critical; otherwise, HMRC may issue penalties or charge interest on unpaid taxes.
In addition, even if no tax is ultimately due, a return might still need to be filed if HMRC has sent a notice to file or if the trust/estate received any untaxed income.
Who Must File a Trust & Estate Tax Return?
Trustees of nearly all UK trusts and executors or administrators of a deceased person’s estate must consider the Trust & Estate Tax Return requirements. If you are managing a discretionary trust, an interest in possession (life interest) trust, or handling the administration of an estate, you typically need to file a tax return if the trust or estate has any taxable income or gains in the year.
For example, if a trust earns bank interest, receives dividends, or collects rental income from property, those receipts must be reported.
Similarly, if the trustees or executors sell assets, such as stocks or real estate and realise a capital gain, they must declare it on the tax return.
It’s worth noting that even if the trust’s income is below certain thresholds or tax has already been paid at source, a return may still be required.
Likewise, estates in administration may need to file a return if the estate earned income during the period after death and before assets were distributed, even if that income was modest.
Importance of Compliance and Deadlines
Trust and estate tax compliance is not optional – it is a legal obligation. Therefore, understanding the filing deadlines and requirements is essential. In the UK, the deadlines for Trust & Estate Tax Returns mirror those for individual self assessment tax returns in many cases.
If you file the return on paper, using form SA900, it must reach HMRC by 31 October following the end of the tax year. However, if you file online, using HMRC-approved software, since HMRC’s standard online portal doesn’t support trust returns, the deadline is 31 January following the end of the tax year.
Discretionary Trusts: Tax Returns and Obligations
Discretionary trusts are common in UK estate planning, and they come with specific tax rules. In a discretionary trust, the trustees have discretion over how and when to distribute income or capital to beneficiaries.
From a tax perspective, discretionary trusts are subject to special trust tax rates. The trustees are typically responsible for paying Income Tax on the trust’s income at the trust rates, which are usually higher than individual basic rates.
Additionally, if the trust made a capital gain above the annual exempt amount for trusts, which is usually half the personal Capital Gains Tax allowance, the return will calculate any Capital Gains Tax due.
Moreover, the tax return process for discretionary trusts involves detailing any distributions made to beneficiaries. When beneficiaries receive distributions from a discretionary trust, they get a credit for the tax already paid by the trustees and a Form R185 (Trust Income Statement) is required. The tax return helps ensure that all these aspects are properly reported.
Life Interest Trusts (Interest in Possession Trusts)
Life interest trusts, also called interest in possession trusts, give a named individual, often called the life tenant the right to receive all income from the trust during their lifetime.
For instance, a common arrangement is where a surviving spouse has a life interest in a trust created by their late partner’s Will: the spouse receives all trust income for life, and after the spouse’s death, the capital passes to children or other beneficiaries.
This structure has distinct tax implications, and the filing of the Trust & Estate Tax Return for such trusts reflects those rules.
In a life interest trust, the trustees usually pay Income Tax at the basic rate on the trust’s income.
As a result, when the life tenant receives the income, it’s usually with basic rate tax already deducted. If the life tenant is a basic rate taxpayer or non-taxpayer, they may have no further tax to pay, they could even reclaim tax if they pay no tax personally.
On the other hand, if the life tenant is a higher or additional rate taxpayer, they would need to pay extra tax through their own self assessment.
The trustees of a life interest trust must still file an annual tax return (SA900) to report the trust’s income and any gains. They will declare that Income Tax has been paid at source on the income.
Additionally, any capital gains within the trust are reported similarly to other trusts. It’s important for trustees to provide the life tenant and any remainder beneficiaries, if relevant with information about the trust’s income and tax paid, again via form R185.
Ultimately, while life interest trusts have a more straightforward income tax treatment than discretionary trusts, the annual tax return is still essential to ensure HMRC receives a full account of the trust’s finances.
We help trustees of interest in possession trusts handle these filings, ensuring that the division between trustee-paid tax and beneficiary obligations is clearly documented and understood.
Deceased Estates and Estate Tax Returns
When someone dies, their estate i.e. the total of their property, money, and other assets may continue to generate income during the administration period before everything is distributed to the beneficiaries.
Common examples include bank accounts accruing interest, rental income from a property, or dividends from shares that the deceased held.
The personal representatives (executors or administrators) managing the estate are responsible for any necessary tax filings during this period.
This can involve two main filings: the final personal tax return for the portion of the tax year up to the date of death, and if the estate continues to have income after death, the Trust & Estate Tax Return for the estate itself during administration.
From a tax rate perspective, estates in administration are generally taxed like interest-in-possession trusts: income is subject to basic rate tax.
They would then pass the net income to beneficiaries, along with a statement of tax paid, on form R185E for estate income. Beneficiaries might have further tax to pay depending on their own tax situation, or they might claim refunds if appropriate.
Moreover, if the estate sells assets and incurs capital gains, the executors need to calculate any Capital Gains Tax for the estate.
Ultimately, filing an estate tax return ensures transparency and proper settlement of all Income Tax and Capital Gains Tax before the estate is wound up. It is a final step to make sure HMRC has no outstanding claims on the income generated by the deceased’s assets during administration.
Because grieving families and busy executors have a lot to manage, it is often advisable to seek professional assistance in preparing the estate’s tax return.
At Spherical, we work with executors to handle estate tax returns meticulously, giving executors and beneficiaries confidence that all tax matters have been resolved correctly.
Why Choose Professional Assistance?
Trust and estate tax returns can be complicated due to the varying tax treatments for different types of trusts and the need to account for all sorts of income and gains. Furthermore, HMRC’s filing process for trusts and estates, especially using the SA900 form and associated schedules is more involved than a standard individual tax return.
Many trustees and executors find it challenging to interpret the rules, ensure they’re claiming available allowances, and get the figures right. Professional guidance can make a significant difference. Here’s why working with Spherical on your trust or estate tax return is beneficial.
Expertise in UK Trust Taxation
Our tax professionals stay up-to-date with UK tax legislation and HMRC guidelines regarding discretionary trusts, life interest trusts, and estates. We understand the nuances — from the special tax rates that apply to trusts to the latest changes in tax law — so you don’t have to worry about overlooking anything important.
Additionally, we ensure that every relevant detail i.e. income type, expenses, distributions, etc. is correctly recorded.
Accurate and Efficient Filing
We gather all necessary information and documentation such as investment statements, bank interest certificates, property income records, and details of any distributions to beneficiaries.
Then we prepare the Trust & Estate Tax Return (SA900 and any supplementary pages required) accurately.
Because we use HMRC-approved software for trust and estate returns, we can file online on your behalf, which is typically faster and more secure.
Moreover, we double-check calculations and reconcile figures to documents, minimizing the risk of HMRC inquiries or mistakes that could lead to penalties.
Compliance and Peace of Mind
By entrusting this process to professionals, you ensure full compliance with HMRC deadlines and requirements. We keep track of key dates such as the 31 January online filing deadline and any payment due dates.
As a result, you can have peace of mind that no deadline will be missed and no regulatory step neglected. We also handle any follow-up correspondence with HMRC if questions arise, saving you time and stress.
Personalised Advice
Every trust and estate is unique. We provide tailored advice on matters like optimising distributions for tax efficiency, handling any Inheritance Tax reporting (if it overlaps with the income tax return period), and planning for future tax obligations.
In addition, we can communicate with your solicitors or financial advisors to ensure a coordinated approach to managing the trust or estate.
In summary, working with Spherical means you have dedicated support through what can otherwise be a daunting task.
Not only do you reduce the risk of errors, but also you free yourself to focus on other important responsibilities, knowing the tax affairs are in capable hands.
Our professional, friendly team has extensive experience with trust and estate tax returns in the UK, and we are here to help high-net-worth families, trustees, solicitors, and executors navigate these duties efficiently.


