Claiming a Nil-Rate Band From a Spouse Who Died in 1994

Yes. If your mother has died and your father died years ago — in 1994, or any other year — you can still claim his unused inheritance tax allowance against her estate. The transferable nil-rate band does not expire, and it does not matter how long ago the first spouse died. What matters is that the couple were married or in a civil partnership, and that some of the first person's allowance went unused at the time. The claim is made now, on the second death, not retrospectively on the first.

The reason this so often works in the family's favour is that, when the first spouse died decades ago, everything they owned usually passed to their surviving husband or wife. Transfers between spouses are exempt from inheritance tax, so nothing used up the first person's nil-rate band. That leaves the whole of it — up to 100% — available to be added to the survivor's own allowance when the survivor later dies.

So the mechanism most families need is not complicated in principle: claim the unused percentage of the first spouse's nil-rate band, add it to the second spouse's own band, and the estate can pass a much larger sum free of inheritance tax. The work is in the evidence, especially when the first death was long ago and the paperwork is gone.

The short answer: the date of the first death does not matter

The transferable nil-rate band was introduced in 2007, but it was written so that it applies to a surviving spouse or civil partner who dies on or after 9 October 2007, regardless of when the first spouse died. A death in 1994, in the 1980s, or earlier still all qualify. The rule looks at the first death only to work out how much of the allowance was used; it does not require the first death to have happened after any particular date.

What you are transferring is a percentage, not a fixed cash figure. If none of the first spouse's nil-rate band was used — the usual position where everything passed to the survivor — then 100% is available to transfer. That 100% is applied to the nil-rate band in force at the time of the second death, not the much smaller figure that applied in 1994. So the value of the allowance keeps pace with the band as it stands now, which is a significant benefit of the way the rule is built.

How the transferable nil-rate band works

Every estate has a nil-rate band: a slice that passes free of inheritance tax before any tax is due. The standard nil-rate band is £325,000. Where a married person or civil partner dies without using all of theirs, the unused percentage can be carried over and added to their surviving spouse's band on the second death.

Add a full transfer to the survivor's own band and the second estate can pass up to £650,000 with no inheritance tax, before any other allowances are considered. The transfer is claimed by the personal representatives of the second estate, and it is the percentage that carries over, so even though £325,000 is far larger than the band that existed in 1994, a 100% unused allowance from that first death still transfers in full and is measured against today's figure.

Source: GOV.UK, Inheritance Tax: transfer of threshold (IHT402) and How Inheritance Tax works: thresholds, rules and allowances, HM Government. The nil-rate band has stood at £325,000 since the 2009 to 2010 tax year and is frozen at that level.

Why an old death usually leaves the whole band unused

This is the part that turns a daunting-sounding claim into a straightforward one for most families. When a husband or wife died in 1994 and left everything to their spouse, none of their nil-rate band was consumed, because everything they left was covered by the spouse exemption. The spouse exemption for transfers between married couples is long-standing, so this was as true in 1994 as it is now.

The consequence is that, in the common case, the entire nil-rate band from the first death is sitting unused and 100% of it is available to transfer. You do not have to reconstruct a complicated tax calculation from decades ago; you have to demonstrate that everything, or almost everything, passed to the surviving spouse and that the band was therefore left intact.

It is only where the first spouse left substantial assets to someone other than the survivor — children, say, or a trust — that part of the band was used, reducing the percentage available now. In that situation the executors work out what proportion was used and transfer the balance. The unused percentage is what transfers, whether that is 100%, 40% or nothing.

The evidence HMRC wants to see

A claim is only as good as the documents behind it, and HMRC will want to establish two things: that the couple were legally married or in a civil partnership, and how much of the first person's nil-rate band was left unused.

In practice the papers that do this are the marriage or civil partnership certificate, the death certificate for the first spouse, the will (or evidence that they died intestate), the grant of probate if one was taken out, and a picture of what passed to the survivor. Where the whole estate went to the surviving spouse and nothing was taxable, the documentation HMRC needs is usually lighter than families fear, because there is little to prove beyond the marriage and the fact that the estate passed spouse-to-spouse.

This claim is one of several allowances that a widow or widower can inherit and that are easy to miss. Another is the extra ISA allowance a surviving spouse is entitled to, explained in claiming the ISA allowance a widow inherits — worth checking at the same time, because the paperwork overlaps.

When the old paperwork has been lost

Thirty years is a long time to keep documents, and many families reach this point with almost nothing from the first death. That does not sink the claim. The records can nearly always be rebuilt from official sources.

Marriage and death certificates can be re-ordered from the General Register Office through GOV.UK's order a copy of a certificate service. A copy of an old will and grant of probate can be obtained from the probate service via find a will or probate document. The history of a jointly owned property, and how ownership changed on the first death, can often be traced through HM Land Registry. Between those sources you can usually reconstruct enough to satisfy HMRC. The right approach is to explain the position honestly, supply what you can obtain, and make the claim — not to abandon it because a folder of 1994 paperwork no longer exists.

The form, the deadline and who claims

The claim is made by the personal representatives of the second estate — the executors named in the will, or the administrators where there is no will — on form IHT402, which is submitted alongside the IHT400 inheritance tax account. It is not something the survivor arranges in advance or that happens automatically; it has to be actively claimed when the second person dies.

There is a deadline, and it matters. The claim to transfer the unused band must normally be made within two years of the end of the month in which the second spouse died. Miss it and, while HMRC has discretion in some circumstances, you are relying on that discretion rather than on a right. So the transferable nil-rate band belongs on the checklist early in administering the second estate, not as an afterthought once everything else is settled.

While that estate is being dealt with, the practical cashflow problem is often getting at any money at all before the grant is issued, since accounts are frozen. How much can be released beforehand varies by institution, and we keep a running picture in how much each bank releases without a grant of probate.

The residence nil-rate band is separate — and also transferable

There is a second allowance that behaves in a similar way and is easy to confuse with the first. The residence nil-rate band is an additional band, currently up to £175,000, available where a home is left to direct descendants such as children or grandchildren. Like the standard band, an unused residence nil-rate band can be transferred from a first spouse to a second, even where the first death happened before this allowance existed — the transfer is worked out by reference to the rules in force on the second death.

Two cautions. The residence nil-rate band is reduced for larger estates, tapering away where the estate is worth more than £2 million. And "direct descendants" has its own definition that reaches further than people expect: stepchildren can qualify, as set out in why stepchildren do count for the residence nil-rate band. If a home is passing to children, it is worth claiming both transfers, not just the standard one.

Source: GOV.UK, Inheritance Tax: residence nil rate band, HM Government. The residence nil-rate band is up to £175,000 and tapers where the estate exceeds £2 million.

Scotland and Northern Ireland

Inheritance tax is a UK-wide tax, so the transferable nil-rate band, the £325,000 figure and the residence nil-rate band apply the same way across England, Wales, Scotland and Northern Ireland. That part does not change with the border.

What differs is the process wrapped around it. In Scotland the authority to deal with the estate is confirmation, obtained through the sheriff court, rather than a grant of probate, and the record you would retrieve for an old first death is a copy of the confirmation. Certificates for a Scottish death come from National Records of Scotland rather than the General Register Office; certificates for a Northern Ireland death come from the General Register Office for Northern Ireland. The inheritance tax claim is the same; only where you go for the supporting documents changes. Our guide to probate, the estate and inheritance tax sets out where the devolved procedures diverge.

Because spouses and civil partners inherit these allowances and unmarried couples do not, the tax gap between the two can be very large. If that describes your own situation rather than your parents', the contrast is drawn out in why unmarried partners get no inheritance tax exemption, and it is one reason couples who cannot or do not want to marry sometimes use life cover to meet a future tax bill; you can get life insurance quotes and have a broker price cover against the liability, subject to underwriting. What cover costs is not something to assume, and no policy is guaranteed to be offered.

Frequently asked questions

Can we claim an allowance from a spouse who died in 1994?

Yes. The transferable nil-rate band applies regardless of when the first death occurred, provided the couple were married or in a civil partnership and part of the first estate's allowance went unused. The claim is made on the second death, not retrospectively on the first, and the unused percentage is measured against the nil-rate band in force now.

What evidence does HMRC want?

The marriage certificate, the first death certificate, the will or evidence of intestacy, the grant if one was taken, and details of what passed to the survivor. Where nothing was taxable and everything went to the spouse, the paperwork required is usually lighter than families fear, because there is little to prove beyond the marriage and the spouse-to-spouse transfer.

What if all the old paperwork has been lost?

Records can often be rebuilt: certificates from the General Register Office, a copy will and grant from the probate service, and title history from HM Land Registry. Explain the position to HMRC and supply what you can obtain rather than abandoning the claim altogether. Lost documents rarely defeat a claim that is otherwise sound.