UK Will Disputes and Contesting Process

Lack of testamentary capacity

The testator must have had capacity to make the will at the time of execution. The classic test from Banks v Goodfellow (1870) requires the testator to:

understand the nature of making a will and its effects;

understand the extent of their property being disposed of;

understand and appreciate the claims of those who might benefit;

be free of any mental disorder distorting their decisions.

Undue influence

A will can be set aside where the testator was coerced into making it. Undue influence requires more than mere persuasion: it requires coercion overbearing the testator's own decision. The burden of proof sits with the person alleging undue influence.

Fraud and forgery

Where the will is forged or the testator was deceived (for example, told they were signing a different document), the will is invalid. Forensic document examination is sometimes required in such cases.

Want of knowledge and approval

Even with capacity and no coercion, a will can be set aside if the testator did not actually know and approve its contents. This typically arises where the will was prepared by a beneficiary or by someone close to a beneficiary, and the testator did not understand what was being signed.

Improper execution

The Wills Act 1837 requires specific signing and witnessing formalities. Where these are not followed (e.g. only one witness, witnesses not present together, beneficiary witnesses), the will or specific gifts can be invalid.

Rectification and construction

The court can rectify a will to correct a clerical or drafting error that does not reflect the testator's instructions. Construction claims ask the court to interpret ambiguous wording.

The 1975 Act

The Inheritance (Provision for Family and Dependants) Act 1975 allows certain categories of person to claim against an estate that does not provide reasonable financial provision for them. Categories include:

spouse or civil partner;

former spouse or civil partner not remarried;

cohabitee for at least 2 years;

child of the deceased;

person treated as a child of the family;

any other person who was being maintained by the deceased.

1975 Act time limits

Claims must be made within 6 months of the grant of probate or letters of administration. Extensions can be granted but require special reasons.

Caveats

A caveat can be entered at the Probate Registry to prevent a grant of probate while a dispute is being resolved. Caveats last 6 months and can be renewed. A warning and appearance procedure is used to test whether the caveat should remain.

Costs

Will disputes are expensive. Legal costs in contested probate proceedings frequently run into tens of thousands of pounds. The general rule is that costs follow the event but the court can order otherwise, particularly where the deceased's actions contributed to the dispute.

Mediation

Most will disputes settle through negotiation or mediation rather than trial. Mediation is encouraged by the Civil Procedure Rules; refusing to mediate without good reason can attract costs sanctions.

The IHT regime: rates, bands, and reliefs

UK inheritance tax is charged at 40 percent on estates above the available nil-rate bands under the Inheritance Tax Act 1984. The standard nil-rate band is GBP 325,000 per individual, frozen until 2030 under successive Budget announcements. The residence nil-rate band (RNRB) of up to GBP 175,000 applies where a qualifying residential interest passes to direct descendants on death.

Both bands are transferable between spouses and civil partners. A married couple or civil partners can therefore shelter up to GBP 1 million on the second death where the home passes to direct descendants. The RNRB tapers above GBP 2 million of estate value, reducing by GBP 1 for every GBP 2 of estate over the threshold and being extinguished entirely for estates above GBP 2.35 million (or GBP 2.7 million in the transferable case).

Where at least 10 percent of the estate (after exemptions and the nil-rate band) is left to charity, the IHT rate on the rest of the estate falls to 36 percent from 40 percent. The reduced rate is intended to incentivise charitable legacy planning and has been used widely since its introduction in 2012.

Lifetime gifts and the 7-year rule

Gifts during lifetime above the annual exemptions are potentially exempt transfers (PETs) and fall outside the estate after 7 years. Gifts made between 3 and 7 years before death benefit from taper relief on any tax above the available nil-rate band: 20 percent reduction in IHT for gifts 3 to 4 years before death, rising to 80 percent reduction for gifts 6 to 7 years before death.

The annual exemptions cover smaller gifts without using the 7-year clock. Each individual has a GBP 3,000 annual exemption per tax year (which can be carried forward one year if unused). Small gifts up to GBP 250 per recipient per tax year are exempt. Wedding gifts are exempt: GBP 5,000 from each parent to a child marrying, GBP 2,500 from grandparents, GBP 1,000 from anyone else.

Gifts out of normal expenditure from surplus income are exempt without time limit if the donor establishes a regular pattern and retains a reasonable standard of living. The exemption is particularly useful for high earners with surplus income they wish to pass to family on a regular basis. Documentation establishing the regular pattern is essential for the exemption to apply in practice.

Business Property Relief and Agricultural Property Relief

Business Property Relief (BPR) reduces the IHT value of qualifying business assets by 50 or 100 percent. The 100 percent relief applies to interests in an unincorporated business, shares in an unquoted trading company, and shares in a quoted trading company where the deceased had control. The 50 percent relief applies to controlling shareholdings in quoted trading companies and certain other assets used in a business.

Agricultural Property Relief (APR) reduces the IHT value of agricultural property by 100 or 50 percent. The 100 percent relief generally applies to owner-occupied farmland; the 50 percent relief applies to tenanted farmland under certain conditions. The relief covers the agricultural value, not necessarily the full market value where development potential exists.

The Autumn Statement 2024 announced reforms to BPR and APR from April 2026, including a GBP 1 million combined cap on 100 percent BPR/APR. Above the cap, relief reduces to 50 percent. The reforms are being implemented through Finance Bill legislation and are expected to reshape estate planning for business owners and farmers significantly.

Wills, intestacy, and probate

A UK will must be in writing, signed by the testator, and witnessed by two adults present at the same time under section 9 of the Wills Act 1837. Beneficiary witnesses (or their spouses) invalidate the gift to the beneficiary under section 15, though the rest of the will stands. Marriage automatically revokes a prior will unless made in contemplation of the new marriage; divorce treats gifts to the former spouse as if they predeceased.

Intestacy rules under the Administration of Estates Act 1925 (as amended) follow a statutory hierarchy where there is no valid will: spouse and civil partner first with a statutory legacy of GBP 322,000 for deaths from 26 July 2023; then biological and adopted children sharing the residue; then more remote relatives. Step-children are not included in the intestacy hierarchy.

Probate is the process of obtaining authority to administer the estate. The executors named in the will apply to the Probate Registry; where there is no will, letters of administration are granted to the next-of-kin. The Probate Registry application fee is GBP 300 from January 2022 for estates above GBP 5,000. Solicitor probate fees typically run from 1 to 3 percent of estate value for full probate services.

Trusts in estate planning

UK trusts are widely used in estate planning. Bare trusts give the beneficiary an immediate absolute interest. Interest in possession trusts give a beneficiary a right to income with capital passing later. Discretionary trusts give trustees discretion over which beneficiaries to benefit and when. Most lifetime trusts (other than bare trusts and disabled persons trusts) fall within the relevant property regime: entry charges of up to 20 percent on creation, periodic 10-year charges of up to 6 percent, and proportionate exit charges.

Will trusts (created on death by the will) include life interest trusts giving a surviving spouse a right to occupy the family home with capital passing to children later, and discretionary trusts giving trustees flexibility over how the estate is distributed. Will trusts have their own tax treatment that depends on the structure.

The Trust Registration Service operated by HMRC under the EU Fifth Money Laundering Directive requires most UK trusts to register with HMRC. Beneficial ownership information is held on the register, accessible to law enforcement and certain other authorities. Limited exemptions apply for some trust types.

Disclaimer

This article provides general information on UK will disputes and is not personal legal advice. Disputes are fact-sensitive and time-critical; specialist contentious probate advice is essential.

Frequently asked questions

What is the time limit for contesting a will?

Most grounds have no fixed time limit, though delay can be a factor. 1975 Act claims must be made within 6 months of grant of probate.

Can a spouse always claim regardless of the will?

Spouses cannot override the will outright but can apply under the 1975 Act for reasonable provision. The court applies a higher standard for spouses than for other categories.

What is a caveat?

A document entered at the Probate Registry preventing a grant of probate while a dispute is resolved. Lasts 6 months and can be renewed.

Can a will be partly invalidated?

Yes. Specific gifts can be invalidated (e.g. to a witness beneficiary) without affecting the rest of the will.

What does undue influence mean?

Coercion overbearing the testator's free will. Mere persuasion or argument is not undue influence.

Frequently asked questions

What is the time limit for contesting a will?

Most grounds have no fixed time limit, though delay can be a factor. 1975 Act claims must be made within 6 months of grant of probate.

Can a spouse always claim regardless of the will?

Spouses can apply under the 1975 Act for reasonable provision. The court applies a higher standard for spouses than for other categories.

What is a caveat?

A document entered at the Probate Registry preventing a grant of probate while a dispute is resolved.

Can a will be partly invalidated?

Yes. Specific gifts can be invalidated without affecting the rest of the will.

What does undue influence mean?

Coercion overbearing the testator's free will. Mere persuasion or argument is not undue influence.