The Residence Nil Rate Band (RNRB) can provide an additional Inheritance Tax threshold of up to £175,000 in the 2026/27 tax year when a qualifying home passes to direct descendants.
It can be claimed alongside the standard £325,000 nil-rate band, giving an individual combined threshold of up to £500,000.
However, the full allowance is not available to every estate. The amount depends on the qualifying property, who inherits it, the estate’s value and whether the £2 million taper reduces the relief.
Key highlights:
| Key point | 2026/27 position |
|---|---|
| Maximum residence nil rate band | Up to £175,000 |
| Standard nil-rate band | £325,000 |
| Combined individual threshold | Up to £500,000 |
| RNRB taper starts | Above £2 million |
| Taper rate | £1 lost for every £2 above £2 million |
| Transfer between spouses/civil partners | Potentially available |
| Main inheritance condition | Qualifying home passes to direct descendants |
Understanding the current RNRB rules can help families and executors assess whether this valuable Inheritance Tax relief may apply to an estate.
What Is the Residence Nil Rate Band and How Much Is It in 2026?
The residence nil rate band, or RNRB, is an additional Inheritance Tax threshold designed for qualifying estates where a residence is passed to direct descendants.
For 2026/27, the maximum RNRB remains £175,000, while the standard nil-rate band remains £325,000. The £2 million taper threshold also remains unchanged. The latest current inheritance tax thresholds confirm that these levels are fixed through the 2030/31 tax year.
An official February 2026 update said the thresholds “will stay fixed at these levels for a further one tax year, until 5 April 2031.”
The RNRB should therefore be understood as an additional threshold with specific conditions, not as a blanket £175,000 exemption attached to every home.
Who Can Qualify for the Residence Nil Rate Band?
Eligibility depends on both the property and the way it is inherited. A qualifying residence must generally pass to a direct descendant in a way that satisfies the RNRB rules.
The main eligibility checks are:
- The deceased owned a qualifying residential interest.
- The property was a residence of the deceased at some point.
- The qualifying interest passes to a direct descendant.
- The value passing in a qualifying way supports the amount claimed.
- The estate value does not fully remove the allowance through the £2 million taper.
Direct descendants can include children, grandchildren and further lineal descendants. The definition can also cover adopted children and stepchildren in qualifying circumstances. Siblings, nieces and nephews are not direct descendants simply because they are close relatives.
The central point is that home ownership alone is insufficient. Who receives the qualifying interest, and how they receive it, can determine whether the estate benefits from the RNRB.
Which Homes Can Count Towards the Residence Nil Rate Band?
A property can potentially qualify where it was owned by the deceased and used as their residence at some point. It does not always have to be the home occupied immediately before death.
Where someone owned more than one residence, only one qualifying residential interest can normally be used for the RNRB claim. A property held purely as an investment and never used as the deceased’s residence would not qualify merely because it formed part of the estate.
How Different Property Situations May Be Treated?
| Property situation | RNRB consideration |
|---|---|
| Main or former home | May potentially qualify |
| Share of a family home | May potentially qualify |
| Several former residences | One qualifying residence may need to be identified |
| Pure buy-to-let never lived in | Does not qualify as a residence on ownership alone |
| Qualifying home worth under £175,000 | Property value may limit the available RNRB |
Where the deceased owned only part of a home, the value of that interest matters. Relevant secured liabilities can also affect the value attributed to the property interest.
The maximum £175,000 figure therefore does not mean every qualifying estate receives the full amount.
How Does the £2 Million Taper Reduce the Residence Nil Rate Band?
The residence nil rate band starts to reduce when the relevant net estate exceeds £2 million. The reduction is £1 for every £2 above that threshold.
The £2 Million Taper Formula
The £2 million taper determines how much of the residence nil rate band is reduced once an estate exceeds the taper threshold.
The simplified calculation is:
Amount above £2 million ÷ 2 = reduction in available RNRB
Consider an estate worth £2.1 million with a qualifying residence passing to direct descendants.
The estate is £100,000 above the taper threshold. Half of that amount is £50,000, so a maximum individual RNRB of £175,000 would be reduced to £125,000, assuming no other restriction applies.
This is a simplified example. Actual estate calculations can depend on valuation, ownership and other estate circumstances.
When Does the Residence Nil Rate Band Disappear Completely?
Where only one maximum £175,000 RNRB is available, a £350,000 excess above the £2 million threshold creates a £175,000 taper reduction.
On that simplified basis, the individual RNRB would be fully tapered away at an estate value of £2.35 million.
The position can be different where transferred RNRB from a late spouse or civil partner is available. A larger available RNRB requires a larger taper reduction before the whole amount disappears.
This is why the £2 million threshold matters even when the family home itself is worth substantially less than £2 million: the taper looks at the relevant estate value, not only the value of the residence.
Can Married Couples and Civil Partners Transfer Unused Residence Nil Rate Band?
Unused RNRB can potentially be transferred from a deceased spouse or civil partner to the survivor’s estate.
The transferable residence allowance rules generally work by transferring the unused percentage of the first person’s RNRB rather than simply carrying forward a fixed cash figure.
This helps explain the often-quoted claim that a qualifying married couple or civil partnership may potentially pass on up to £1 million before Inheritance Tax becomes payable:
- Two standard nil-rate bands can total up to £650,000.
- Two residence nil rate bands can total up to £350,000.
- Together, the potential combined thresholds can reach £1 million.
The full £1 million is not automatic. Unused allowances must be available, the surviving estate must meet the relevant RNRB conditions, and the £2 million taper may reduce the amount.
Unmarried partners do not receive the same transferable RNRB treatment merely because they lived together.
What Happens to the Residence Nil Rate Band After Downsizing, Selling or Giving Away a Home?
Selling a family home or moving to a less valuable property does not necessarily mean the RNRB is lost.
The downsizing residence allowance guidance provides for a possible downsizing addition where qualifying conditions are met. The rules can be relevant where a former residence was sold, given away or replaced with a less valuable home on or after 8 July 2015.
For example, an older homeowner might sell a long-held family house, move to a smaller property and later leave the remaining estate to children. Depending on the values and inheritance arrangements, the estate may still qualify for an addition reflecting RNRB that might otherwise have been lost.
The rules can become more complex after several property transactions, partial gifts or changes in ownership. Keeping records of previous homes, sale dates and values can therefore be important for executors.
How Can Wills, Trusts and Estate Structure Affect the Residence Nil Rate Band?
The residence nil rate band (RNRB) depends on more than simply owning a qualifying home. The way the property is owned, the terms of the will, any trust arrangements and the overall estate structure can all affect whether the relief is available and how much can be claimed.
Wills and the Closely Inherited Requirement
The qualifying residential interest generally needs to be inherited by a direct descendant in a way recognised by the rules.
A will should therefore reflect the intended beneficiaries and estate structure. Changes such as remarriage, divorce, births, deaths or major property transactions can leave an older will out of step with current circumstances.
The important issue is not simply who is named somewhere in the will, but who becomes entitled to the qualifying interest and on what terms.
Can a Trust Still Qualify?
Not every trust qualifies for the residence nil rate band, so the trust structure must be considered carefully.
Key factors include:
- The type of trust created.
- The nature of the beneficiary’s interest.
- Whether the property is treated as closely inherited.
- The wording of the trust and who ultimately benefits.
For example, a discretionary trust should not automatically be assumed to qualify simply because children or grandchildren are potential beneficiaries.
Records That Support the Estate Position
Executors may need property valuations, ownership records, mortgage details, wills, trust documents and evidence relating to beneficiaries.
Records concerning a deceased spouse or civil partner may also be required where transferable allowances are claimed. Previous property sale and downsizing information can become important where the deceased no longer owned their former family home.
Good documentation does not create eligibility, but it can make the estate position easier to establish and support.
Which Residence Nil Rate Band Rules Are Confirmed for 2026, and Which Common Claims Are Misleading?
The core 2026/27 thresholds are confirmed, but simplified descriptions can give families unrealistic expectations.
Confirmed facts and common misconceptions:
- Confirmed: the maximum individual RNRB is £175,000.
- Confirmed: the standard nil-rate band is £325,000.
- Confirmed: tapering begins when the estate exceeds £2 million.
- Confirmed: £1 of RNRB is lost for every £2 above that threshold.
- Misleading: every homeowner automatically receives another £175,000.
- Misleading: every individual can automatically leave £500,000 tax-free.
- Misleading: every married couple automatically receives a £1 million exemption.
- Misleading: the £2 million taper considers only the family home.
The most important distinction is between the maximum threshold potentially available and the amount a particular estate actually qualifies to use.
What Should Families and Executors Check Before Claiming the Residence Nil Rate Band?
Before assuming that the full RNRB is available, executors should work through the property, beneficiary and estate-value conditions.
Practical checks include:
- Confirm whether the deceased owned a qualifying residence.
- Identify who inherits the home or relevant share.
- Check whether the beneficiaries are direct descendants.
- Establish the relevant estate value.
- Test whether the £2 million taper applies.
- Check for unused RNRB from a late spouse or civil partner.
- Review previous downsizing, sales or gifts of a home.
- Examine wills and trust arrangements.
- Keep appropriate property valuations and supporting records.
- Check which estate administration forms are required.
Form IHT435 is used for a residence nil rate band claim in relevant cases, while IHT436 can be required when transferable RNRB is claimed from a previously deceased spouse or civil partner.
Complex estates involving trusts, substantial property values or taper calculations may require advice based on the estate’s individual facts.
Conclusion
The UK residence nil rate band in 2026 remains a potentially valuable part of the Inheritance Tax framework, but the headline £175,000 figure tells only part of the story.
A qualifying property, eligible direct descendants, estate valuation, transferable allowances and the £2 million taper can all influence the final amount. For some families, the full RNRB may be available; for others, it may be restricted or completely tapered away.
With the main Inheritance Tax thresholds remaining frozen, understanding how these rules interact is increasingly important for families whose wealth is concentrated in residential property.
Frequently Asked Questions
Can stepchildren qualify as direct descendants for the residence nil rate band?
Yes. Stepchildren can fall within the direct-descendant rules, alongside biological and adopted children and qualifying further descendants.
What happens if the qualifying home is worth less than £175,000?
The available RNRB can be limited by the value of the qualifying residential interest passing to direct descendants. A lower-value property interest may therefore produce less than the maximum allowance.
Can siblings, nieces or nephews inherit a home and still qualify for RNRB?
They are not normally treated as direct descendants merely because they are relatives. The statutory relationship between the deceased and beneficiary matters.
Does a mortgage affect the residence nil rate band calculation?
A mortgage or other relevant secured liability can affect the net value of the deceased’s property interest and may therefore influence the amount supported by that interest.
Can an unmarried partner transfer unused residence nil rate band?
The special transfer mechanism applies to spouses and civil partners. Cohabitation alone does not provide the same ability to transfer unused RNRB between partners.
Which forms may be needed for a residence nil rate band claim?
IHT435 is used for a relevant RNRB claim, while IHT436 is used when claiming transferable RNRB from a previously deceased spouse or civil partner. Other estate forms may also be required.
Can a former home still matter if the deceased was living in a care home?
Potentially. A property does not always have to be occupied immediately before death, and previous ownership, occupation and downsizing circumstances can all be relevant.
