Inheritance Tax Scotland: What Executors Need to Know

Many Scottish executors assume inheritance tax is someone else's problem — either the estate is small enough not to qualify, or they think Scotland has its own separate system. Neither assumption is always correct, and getting it wrong can delay Confirmation by months.

Inheritance tax (IHT) is a reserved matter, meaning it is set by the UK Parliament and applies equally throughout Scotland, England, and Wales. There is no separate Scottish inheritance tax. But the way it interacts with the Scottish Confirmation process has some specific mechanics that executors need to understand.

The Basic Inheritance Tax Position

IHT is charged on the net value of the estate above the nil-rate band. For 2026/27, the standard nil-rate band is £325,000. Estates below this threshold pay no IHT.

There are two significant allowances on top of the standard nil-rate band:

The residence nil-rate band (RNRB): An additional allowance of £175,000 (2026/27) that applies when the deceased owned a residential property and leaves it to direct descendants — children, grandchildren, or step-children. This means a person leaving their home to their children can pass up to £500,000 free of IHT.

Spouse/civil partner exemption: All assets passing to a surviving spouse or civil partner are completely exempt from IHT, regardless of value. This exemption does not apply to cohabiting partners — a critical distinction in Scotland, where cohabitants have no automatic inheritance rights anyway.

Transferable nil-rate band: If the deceased's late spouse or civil partner did not use their full nil-rate band on their own death, the unused percentage can be transferred and added to the surviving spouse's estate limit. In practice, this can allow up to £1 million to pass free of IHT when both the standard and residence nil-rate bands are combined across both spouses.

When IHT Must Be Reported to HMRC

Whether or not IHT is actually due, executors must still report the estate to HMRC in most cases. The reporting form depends on the estate's complexity:

For excepted estates (no IHT due): From 1 January 2022, estates for deaths on or after that date use the consolidated C1 (2022) form. This replaces the old dual-form system (C1 plus C5). The C1 now combines the Confirmation inventory submission to the Sheriff Court with the HMRC reporting requirement for non-taxable estates. For most modest Scottish estates, this is the only form needed.

For non-excepted estates (IHT potentially due): If the estate exceeds the applicable nil-rate bands, or is otherwise not "excepted," the executor must complete the full IHT400 account and submit it directly to HMRC. This is a substantially more complex document requiring detailed schedules for property, assets, liabilities, and any gifts made in the seven years before death.

The Critical IHT Payment Deadline

IHT must be paid to HMRC by the end of the sixth month after the person died. For a death in January 2026, the payment is due by 31 July 2026. After that date, HMRC charges interest on outstanding balances daily.

There is a structural problem for Scottish executors here: banks freeze accounts on death, yet IHT must be paid before Confirmation is granted, and Confirmation is what authorises the executor to access those frozen accounts. You need money to get Confirmation, but the money is locked behind Confirmation.

The practical solutions:

• Direct payment from the deceased's bank accounts: Most major Scottish banks will release funds directly to HMRC for IHT payment without waiting for Confirmation, if the executor writes to them explaining the situation and quoting the HMRC payment reference. This is a voluntary arrangement and banks are not legally obliged to do it, but in practice most will cooperate for IHT specifically.
• Instalment option for illiquid assets: If a significant portion of the estate consists of property or business interests that cannot be quickly sold, up to half the IHT can be paid in annual instalments over 10 years. Interest applies to the outstanding balance. This prevents the situation where an executor must urgently sell a house at below-market value to meet a tax deadline.
• Personal funds: The executor can pay IHT from their own resources and reclaim it from the estate once Confirmation is granted. This is often the fastest option for executors with sufficient personal liquidity.

Gifts Made Before Death

IHT does not only apply to assets held at the date of death. The seven-year rule means that gifts made within seven years before the death are potentially caught. Gifts made between three and seven years before death benefit from taper relief, reducing the effective tax rate. Gifts made in the three years immediately before death are charged at the full IHT rate.

Executors should ask the family about any significant gifts — large cash transfers to children, property given away, or trust arrangements — made in the decade before death. A gift that everyone thought was "done and dealt with" can re-enter the estate calculation and create an unexpected IHT liability.

Business Property Relief and Agricultural Property Relief

Two reliefs can dramatically reduce or eliminate IHT on certain assets:

Business Property Relief (BPR): Applies to qualifying business assets, including shares in unlisted companies and interests in trading businesses. If the qualifying conditions are met, the relief is 100% — the asset passes free of IHT.

Agricultural Property Relief (APR): Applies to agricultural land and buildings used for farming. The relief is either 50% or 100% depending on the nature of the occupancy arrangement.

These reliefs are often overlooked. If the deceased had a farming interest, owned shares in a private company, or had a partnership stake in a business, check whether BPR or APR applies before calculating the IHT position.

How IHT Interacts with the Confirmation Process

For non-excepted estates, the process runs like this:

1. The executor prepares and submits the IHT400 to HMRC
2. HMRC processes the return and issues a digital reference number (the IHT421 clearance reference)
3. The executor pays the IHT due (or arranges instalment payments)
4. The executor submits the C1 Confirmation form to the Sheriff Court, along with the HMRC reference number
5. The Sheriff Court grants Confirmation once satisfied the IHT position is resolved

The Sheriff Court will not grant Confirmation until the IHT account is in order. If the IHT400 contains errors or the estate has been undervalued, HMRC may open an enquiry that can hold up the entire estate administration for months or years.

Common Mistakes Scottish Executors Make with IHT

Valuing property too low. If the estate includes heritable property — a house, flat, or land — the executor must obtain a formal professional valuation as at the date of death. Executors sometimes use an estate agent's rough guide, or a figure from a previous year. HMRC values property at the open market value at the date of death, not at what the family thinks it is worth or what was paid for it years ago.

Forgetting foreign assets. UK-domiciled individuals pay IHT on their worldwide assets, not just their Scottish estate. A holiday home in Spain, a bank account in Australia, or shares in a US company are all potentially within the IHT net. These need to be included in the IHT400.

Missing the C5 cut-off. The C5 form is now obsolete for deaths on or after 1 January 2022. If the death occurred before that date, the old dual-form system still applies. Submitting the wrong version of forms causes unnecessary delays.

Ignoring the interaction between Legal Rights and IHT. Scotland's unique forced heirship rules mean that a surviving spouse may elect to claim Legal Rights (a fractional share of the moveable estate) rather than accept what the Will provides. The IHT calculation must reflect the actual distributions after Legal Rights elections are made, not just the terms of the Will as written. Get this wrong and either the estate overpays tax or HMRC opens an enquiry.

When You Need Professional Tax Advice

Not every estate needs a tax adviser. For straightforward excepted estates where the total value is well below the nil-rate band and there are no complex assets, the C1 (2022) form is manageable for a competent executor.

You should seriously consider engaging a tax professional if:

• The estate is close to or above the nil-rate band thresholds
• There were significant gifts in the past seven years
• The estate contains business or agricultural property
• There are foreign assets
• The deceased had a complex financial structure — multiple properties, trusts, or company shareholdings
• The surviving spouse is claiming Legal Rights rather than the Will provision

The cost of professional advice is a proper expense of the estate and can be deducted before calculating the taxable value.

Working through IHT is one of several demanding stages in settling a Scottish estate. The When Someone Dies in Scotland Estate Settlement Guide covers the full Confirmation process, from estate valuation through to final distribution — including a clear walkthrough of when IHT applies and what the HMRC reporting sequence looks like.

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