Characteristics of a Valid Will: UK Requirements Explained

Understanding the characteristics of a valid will is important if you want your estate to be distributed according to your wishes after death. A valid will can determine who receives your property and other assets, appoint executors and include instructions concerning matters such as guardianship for children.

If you die without a valid will, your estate is generally distributed under the intestacy rules rather than according to informal wishes you may have expressed. This can be particularly important for unmarried couples, as a cohabiting partner does not automatically inherit under the intestacy rules in the same way as a spouse or civil partner. Ultimate personal tax in London can also help ensure changes to wealth, investments and tax exposure are considered when reviewing succession arrangements.

What Are the Requirements of a Valid Will?

In England and Wales, there are specific valid will requirements that must be satisfied. Broadly, for a will to be formally valid, it must be:

• Made voluntarily by a person who has the required capacity.
• In writing.
• Signed by the person making the will, known as the testator, or by another person in their presence and at their direction.
• Signed with the intention of giving effect to the will.
• Signed or acknowledged in the presence of two witnesses who are both present at the same time.
• Signed by each witness in the presence of the testator.

Meeting these formalities is a fundamental requirement of a valid will. Problems with signing, witnessing or capacity can create uncertainty and potentially lead to disputes after death.

Key Characteristics of a Valid Will

Beyond the signing and witnessing requirements, a will has several important legal characteristics that explain how it operates during the testator’s lifetime and after death.

A Will Takes Effect on Death

A will records the testator’s intentions for what should happen after their death. The beneficiaries named in the will do not generally acquire an immediate interest in the assets simply because the will has been signed.

The will becomes effective on death, at which point the executors become responsible for administering the estate in accordance with its terms and the applicable law. Understanding the tax responsibilities when managing an estate in London can help executors deal with valuations, HMRC reporting and taxes arising during the administration process.

A Will Does Not Prevent Lifetime Disposal of Assets

Another of the important characteristics of a valid will is that it does not prevent the testator from dealing with their property during their lifetime.

For example, someone may leave a particular investment or property to a beneficiary in their will but later sell that asset. Making the will does not prevent them from doing so.

A Will Can Cover More Than the Distribution of Assets

A will does not have to deal solely with who inherits money, investments or property.

Depending on the individual’s circumstances, it may also be used to appoint executors, appoint guardians for minor children and express wishes concerning funeral, burial or cremation arrangements.

A Will Can Be Changed or Revoked

A person can generally alter or revoke their will while they are alive, provided they have the necessary capacity and comply with the relevant legal requirements.

This is why wills should be reviewed after significant changes in personal or financial circumstances, rather than being treated as documents that never need updating.

A Will Can Deal With Property Acquired Later

A will is capable of dealing with assets acquired after the document was originally made, provided the wording of the will covers those assets and they remain part of the testator’s estate at death. Where wealth includes vested company shares or other equity compensation, estate planning with RSUs in London can help ensure these assets are considered within the individual’s wider succession arrangements.

This is sometimes described as the will being ambulatory: its effect is ultimately determined by the circumstances and assets existing when the person dies.

Who Can Witness a Will?

Choosing appropriate witnesses is an important part of satisfying the valid will requirements.

Although a beneficiary can technically witness a will without necessarily invalidating the entire will, doing so can cause the gift made to that witness to fail. Similar issues can arise where the witness is the spouse or civil partner of a beneficiary.

Using independent witnesses who do not benefit under the will can therefore help avoid unnecessary problems.

Why Can a Valid Will Still Be Disputed?

Even where a will appears to satisfy the formal requirements, disagreements can arise between family members, beneficiaries and personal representatives.

Disputes may concern issues such as whether the person making the will had the required testamentary capacity, whether they understood and approved its contents, whether undue influence was involved or whether the required formalities were followed correctly.

Where the validity of a will cannot be agreed, legal proceedings may ultimately be required to determine whether the document should be admitted to probate.

What Happens If There Is No Valid Will?

If someone dies without leaving a legally valid will, their estate will generally be distributed according to the intestacy rules.

This means the law determines who inherits and in what proportions. The outcome may be very different from what the deceased person would have chosen themselves. Pension benefits should be considered separately, and beneficiaries may need to understand the tax on inherited private pensions in London because pension scheme rules and nominations can determine how those benefits are paid.

This can create particular difficulties for cohabiting couples who are neither married nor in a civil partnership, as there is no automatic entitlement for a surviving cohabiting partner to inherit under the intestacy rules.

Can a Will Be Changed After Death?

The deceased person’s will itself cannot simply be rewritten after their death. However, beneficiaries can sometimes redirect the inheritance they receive through a deed of variation. Understanding the rules for changing a will after death can help beneficiaries establish when a deed of variation may be available and how the two-year tax deadline can affect the process.

Where the appropriate conditions are satisfied, a variation made within two years of death can also receive specific treatment for Inheritance Tax and Capital Gains Tax purposes.

This can be useful where beneficiaries want assets to pass to another family member, another generation or a charity. However, the tax and legal consequences should be considered before a variation is completed.

Where a proposed variation affects a child’s entitlement, the position is more complicated because a minor cannot simply consent to giving up their inheritance.

Why Reviewing Your Will Matters

Meeting the characteristics of a valid will when the document is first prepared is only part of effective estate planning. A will should also continue to reflect the individual’s family circumstances, assets and intentions. Estate reviews should also take account of the treatment of unused pension funds and IHT from April 2027 where pension wealth forms a significant part of the individual’s wider succession planning.

A review may be particularly appropriate following:

• Marriage or entering a civil partnership.
• Divorce or separation.
• The birth or adoption of children or grandchildren.
• The death of an executor or beneficiary.
• The acquisition or disposal of significant property or business assets.
• A substantial change in the value or structure of the estate.

Keeping a will current can reduce uncertainty for executors and beneficiaries and help ensure the estate is administered in accordance with the testator’s intentions.

Understanding the Characteristics of a Valid Will

The main characteristics of a valid will concern both how the document is created and how it operates. The will must meet the relevant formal requirements, takes effect on death, can generally be changed during the testator’s lifetime and can cover assets owned when the person eventually dies.

Careful preparation is important because an invalid, unclear or outdated will can create additional administration, disputes and potentially unintended inheritance outcomes. Where estate planning also involves Inheritance Tax, trusts, business assets or substantial property, the will should be considered alongside the individual’s wider estate and tax position. Where pension wealth is also significant, the IHT treatment of pension death benefits in London should be reviewed separately because pension benefits may be governed by different succession arrangements from assets passing under the will.

Disclaimer: This article provides general information about wills and estate planning in England and Wales. Wills are legal documents and different rules apply in Scotland and Northern Ireland. Legal advice should be obtained where advice on drafting, validity or disputes is required.

Case Study: Reviewing a Will After Significant Changes in Family Wealth

Richard approached our Wimbledon office while reviewing his wider estate planning. He had prepared a will several years earlier, but since then he had acquired an additional property, built a substantial investment portfolio and increased the value of his family business. One of the executors originally appointed under the will had also died.

Cigma Accounting reviewed Richard’s current assets and estimated Inheritance Tax position alongside the arrangements recorded in his existing will. Although determining whether the document itself satisfied the legal requirements of a valid will required a solicitor, our review identified several areas where the estate described when the will was originally prepared no longer reflected Richard’s financial circumstances.

We explained that a will does not prevent Richard from selling or acquiring assets during his lifetime and that beneficiaries do not obtain ownership merely because an asset is mentioned in the will. However, significant changes to his property, investments and business interests provided a sensible reason to reconsider whether his existing succession arrangements still achieved what he intended.

Our wider review covered Richard’s Inheritance Tax, personal tax, business interests and estate planning. We also considered the potential value of his estate against the available IHT allowances and identified information that would be useful when discussing an updated will with his solicitor.

Richard was left with a clearer picture of his estate and potential tax exposure. He could then obtain appropriate legal advice on updating the will, appointing suitable executors and ensuring the document continued to meet the necessary legal formalities.