Few areas of estate planning cause as much quiet confusion as the nil rate band and the residence nil rate band. Together, they determine how much of your estate can…
Few areas of estate planning cause as much quiet confusion as the nil rate band and the residence nil rate band. Together, they determine how much of your estate can pass to loved ones before inheritance tax takes its share — and getting to grips with them early can make a meaningful difference to what your family eventually receives.
The nil rate band, currently set at £325,000, is the threshold below which no inheritance tax is charged. The residence nil rate band adds a further allowance, up to £175,000, when a qualifying home is passed to direct descendants. Used well, a married couple can potentially shield up to £1 million from inheritance tax.
Why does this matter? Because rising property values have pulled many ordinary estates into the tax net, often unexpectedly. Understanding how these allowances work, when they taper, and how they transfer between spouses is the first step towards protecting what you have built.
What Is nil rate band residence nil rate band?
The nil rate band and the residence nil rate band are two allowances that reduce the amount of inheritance tax (IHT) payable on a deceased person's estate in the UK. Together, they can significantly lower — or entirely remove — a family's tax liability when property and other assets pass on death.
The nil rate band (NRB) is the standard tax-free threshold. It currently stands at £325,000 per person and has been frozen at this level for some years. Any part of an estate valued below this figure is taxed at 0%. Anything above it is generally taxed at 40%.
The residence nil rate band (RNRB) is an additional allowance, introduced in April 2017, worth up to £175,000. It applies specifically when a qualifying residence — typically the family home — is passed to direct descendants, such as children, stepchildren, or grandchildren. Importantly, the RNRB tapers away for estates worth more than £2 million, reducing by £1 for every £2 above that threshold.
Both allowances are transferable between spouses and civil partners. When the first partner dies without using their full entitlement, the unused portion passes to the survivor. This means a married couple can, in principle, shelter up to £1 million from IHT, provided the conditions are met.
In practice, the interaction between these two bands can be intricate. The value of the estate, the nature of the property, and the identity of the beneficiaries all shape the final calculation, making careful planning worthwhile.
Key Benefits of nil rate band residence nil rate band
For families passing on a home, the combination of the nil rate band and the residence nil rate band can be genuinely transformative. Together, these two allowances offer meaningful protection against inheritance tax, and understanding how they work in tandem is one of the most valuable steps you can take when planning your estate.
The first benefit is simple: more of your wealth stays with your family. The standard nil rate band shields the first £325,000 of your estate from inheritance tax. Add the residence nil rate band, currently £175,000, and an individual can potentially pass on £500,000 tax-free, provided a qualifying residence is left to direct descendants such as children or grandchildren.
For married couples and civil partners, the advantages compound. Any unused portion of either allowance can be transferred to the surviving spouse, meaning a couple may collectively shelter up to £1 million from inheritance tax. That figure alone often makes the difference between a modest tax bill and no liability at all.
There is also flexibility built into the rules. The residence nil rate band applies even if you have downsized, sold your home, or moved into care, thanks to the downsizing addition. This means older homeowners aren't penalised for making sensible lifestyle changes later in life.
Another quiet strength lies in certainty. Because these allowances are set out in legislation, they offer a predictable planning foundation, unlike some reliefs that depend on business activity or ongoing conditions. You know where you stand.
Finally, the emotional value shouldn't be understated. Being able to pass the family home to your children without forcing a sale to cover tax preserves both wealth and legacy. Used thoughtfully, these combined allowances provide reassurance that decades of careful saving will benefit the people you love most.
How nil rate band residence nil rate band Works
When someone dies, their estate is assessed for inheritance tax (IHT). Two allowances can reduce the taxable value before the 40% rate kicks in: the nil rate band (NRB) and the residence nil rate band (RNRB). Understanding how they interact step by step makes the calculation far less daunting.
First, the standard nil rate band applies. Every individual has an NRB of £325,000, meaning the first slice of the estate passes free of IHT. If none of it was used during lifetime (through certain gifts within seven years, for example), the full amount is available at death.
Next, the residence nil rate band is considered. Introduced in April 2017, it provides an additional £175,000 allowance, but only where a qualifying residential property is passed to direct descendants — children, stepchildren, adopted children, foster children, or grandchildren. If the home is left to a sibling or a friend, the RNRB does not apply.
Then comes the transferable element. When the first spouse or civil partner dies and doesn't use their allowances, the unused percentage transfers to the survivor. In practice, this means a married couple can potentially combine both bands, sheltering up to £1 million between them.
After that, tapering is checked. If the total estate exceeds £2 million, the RNRB reduces by £1 for every £2 above that threshold. A £2.35 million estate, for instance, loses the full residence allowance entirely.
Finally, the executor deducts the available bands from the net estate. Anything remaining is taxed at 40%, or 36% where at least 10% of the estate is left to charity.
The order matters: NRB first, then RNRB, with tapering and transfers layered in carefully to reach the correct figure.
Common Questions About nil rate band residence nil rate band
What is the difference between the nil rate band and the residence nil rate band?
The nil rate band (NRB) is the standard £325,000 threshold below which no inheritance tax is charged on your estate. The residence nil rate band (RNRB) is an additional £175,000 allowance, available only when you pass your main home to direct descendants such as children or grandchildren.
Can both allowances be transferred to a surviving spouse?
Yes. Any unused portion of both the NRB and RNRB can be transferred to a surviving spouse or civil partner. In practice, this means a married couple can potentially pass on up to £1 million free of inheritance tax.
Who counts as a direct descendant for RNRB purposes?
Children, grandchildren, great-grandchildren, stepchildren, adopted children, and foster children all qualify. Spouses and civil partners of these descendants are also included, even if your child has passed away.
What happens if my estate is worth more than £2 million?
The RNRB tapers away by £1 for every £2 your estate exceeds £2 million. So an estate valued at £2.35 million or more loses the full £175,000 allowance entirely.
Does the RNRB apply if I've downsized or sold my home?
Yes, thanks to downsizing provisions. If you sold your home after 8 July 2015 and left equivalent assets to your descendants, you may still claim the allowance.
Can I claim the RNRB if I've never owned property?
Unfortunately not. The residence element requires that a qualifying residential interest formed part of your estate at some point.
Conclusion
Understanding the nil rate band and residence nil rate band can make a meaningful difference to what your family eventually inherits. Together, these allowances can shield up to £500,000 per person from inheritance tax, or £1 million for a married couple or civil partners passing a qualifying home to direct descendants. Unused portions can also transfer to a surviving spouse, which often provides valuable flexibility.
A few points are worth holding onto. The residence nil rate band tapers once an estate exceeds £2 million. It only applies when a home passes to children, grandchildren, or other lineal descendants. And careful will drafting matters, particularly where trusts are involved.
If you haven't reviewed your estate plan recently, now is a sensible time. Speak with a qualified solicitor or financial adviser who can look at your specific circumstances, check your will reflects current rules, and help you make the most of the allowances available.
Learn more about Inheritance Tax Planning.
