Will Writing UK - How to Make a Legal Will, Costs and Property Inheritance Guide 2026

Understand how will writing works in the UK, including legal requirements, solicitor fees, executors, beneficiaries, inheritance tax and how to protect property and family assets.

Will writing is an essential part of estate planning, allowing individuals to decide how their money, property and personal possessions should be distributed after death.

A legally valid will can help ensure that assets pass to intended beneficiaries, appoint trusted individuals to administer an estate and reduce uncertainty for surviving family members.

For homeowners, landlords, property investors and individuals with substantial assets, preparing a will is particularly important because property ownership can involve complex inheritance arrangements, outstanding mortgages and potential inheritance tax liabilities.

Without a valid will, an individual's estate is generally distributed according to intestacy rules, which may not reflect their personal wishes.

Whether someone owns a family home in London, a buy-to-let investment property or multiple properties across the UK, understanding will writing can help support effective long-term estate planning.

Fraser Bond, a UK property agency and real estate consultancy, assists homeowners, landlords, investors and families with residential property sales, lettings and property advisory services across London and the wider UK.

This guide explains how to write a will, the legal requirements, the costs involved, the role of executors and how wills affect property inheritance.

What Is Will Writing?

Will writing is the process of preparing a legal document that sets out how an individual's estate should be managed and distributed after death.

A will may include instructions concerning:

• Residential property and investment properties.

• Savings and bank accounts.

• Personal possessions and valuables.

• Shares and other investments.

• Gifts to family members, friends or charities.

• Appointment of executors.

• Guardianship wishes for minor children.

• Distribution of the remaining estate.

A will can also establish certain types of trusts, although specialist legal advice is usually advisable for complex arrangements.

The person making the will is known as the testator.

Why Is Writing a Will Important?

A properly prepared will gives individuals greater control over the distribution of their estate.

It can help clarify who should inherit particular assets, reduce uncertainty and appoint responsible individuals to administer the estate.

A will may be especially important for unmarried couples, blended families, business owners and people with children from previous relationships.

It is also relevant for property owners who want to specify how their interest in a home or investment property should pass to beneficiaries.

However, a will cannot override every legal entitlement or ownership arrangement.

Certain jointly owned assets, pension benefits and other arrangements may pass outside the estate governed by the will.

How to Write a Will in the UK

Writing a will involves identifying assets, choosing beneficiaries, appointing executors and ensuring the document meets the relevant legal requirements.

Step 1 - Identify Your Assets

Prepare a list of assets and financial interests, including residential property, investment properties, savings, bank accounts, shares and valuable possessions.

Include outstanding liabilities such as mortgages and personal loans.

This information helps establish the overall value of the estate.

Step 2 - Choose Your Beneficiaries

Beneficiaries are the individuals or organisations who receive assets under the will.

They may include spouses, civil partners, children, other relatives, friends or charities.

The will should clearly identify each beneficiary and specify what they should receive.

Step 3 - Appoint Executors

Executors are responsible for administering the estate after death.

Their duties can include obtaining probate, identifying assets, paying debts and taxes, and distributing the remaining estate.

It is generally sensible to appoint trustworthy individuals who are willing and capable of carrying out these responsibilities.

Step 4 - Decide Who Inherits Your Property

Homeowners should specify how their property interests should be distributed.

The appropriate instructions depend on whether the property is owned individually, as joint tenants or as tenants in common.

This distinction is particularly important for unmarried couples and jointly owned investment properties.

Step 5 - Consider Guardians for Children

Parents may use a will to appoint guardians for children under 18.

This can help clarify who should take responsibility for their care if the relevant circumstances arise.

Step 6 - Have the Will Professionally Reviewed

Although a solicitor is not always legally required, professional review can reduce the risk of errors.

Legal advice is particularly important for estates involving multiple properties, business interests, overseas assets, trusts or complicated family relationships.

Step 7 - Sign and Witness the Will

The will must be executed according to the legal requirements of the relevant UK jurisdiction.

Failure to follow the correct signing and witnessing procedure can make the will invalid.

Legal Requirements for a Valid Will

In England and Wales, a valid will generally requires the testator to be at least 18 years old, act voluntarily and have the necessary mental capacity.

The will must be in writing and signed by the testator, or by another person acting on their behalf in accordance with the law.

Two witnesses must be present together when the testator signs or acknowledges the signature.

Each witness must then sign or acknowledge their signature in the testator's presence.

A witness, or the witness's spouse or civil partner, should not be a beneficiary because this can invalidate the relevant gift.

Are the Rules Different in Scotland?

Yes.

In Scotland, a person can generally make a will from the age of 12, provided they have the necessary capacity.

A will must meet Scottish legal requirements, and a properly witnessed will is generally easier to establish as valid.

Scottish succession law also provides certain legal rights for spouses, civil partners and children.

What About Northern Ireland?

Northern Ireland has its own succession and probate procedures.

The principal formalities for executing a will are broadly similar to those in England and Wales, but estate administration and inheritance rules may differ.

How Much Does Will Writing Cost in the UK?

The cost depends on the complexity of the estate and the type of service used.

These are broad illustrative estimates, not fixed national prices.

Additional fees may apply for specialist tax planning, trust provisions, legal advice or secure document storage.

Can You Write Your Own Will?

Yes.

Individuals can prepare their own wills without employing a solicitor.

However, a DIY will must still meet the relevant legal requirements.

Errors involving beneficiaries, property ownership, witnesses or unclear wording can lead to disputes.

DIY wills are generally more appropriate for straightforward estates.

Professional advice is recommended where substantial property assets or complicated family arrangements are involved.

What Happens If You Die Without a Will?

Dying without a valid will is known as dying intestate.

The estate is distributed according to statutory intestacy rules.

These rules determine which relatives inherit and in what proportions.

An unmarried partner does not automatically inherit under the intestacy rules merely because the couple lived together.

This can create significant problems where a couple shares a home but has not formalised its ownership or inheritance arrangements.

Will Writing for Homeowners

For homeowners, a will is an important part of protecting property interests.

A will can specify who should inherit a solely owned property or a share of a property held as tenants in common.

However, the effect of a will depends on the legal ownership structure.

Joint Tenants vs Tenants in Common

This distinction can substantially affect estate planning.

Homeowners should confirm their ownership arrangements before deciding how to distribute property.

Can You Leave a Mortgaged Property in a Will?

Yes.

A property subject to a mortgage can be left to a beneficiary.

However, the mortgage debt does not automatically disappear when the owner dies.

The estate or beneficiary must address the outstanding secured borrowing.

Depending on the circumstances, this may involve repaying the mortgage, arranging alternative finance or selling the property.

Will Writing for Landlords and Property Investors

Landlords may own several properties generating rental income.

A will can help determine who inherits these interests and who should administer the estate.

Property investors should consider outstanding mortgages, ownership structures, tax liabilities and existing tenancy agreements.

Where property is held through a limited company, inheritance may involve shares in the company rather than direct ownership of the underlying properties.

Professional legal and tax advice is recommended.

Can You Leave a Buy-to-Let Property to Your Children?

Yes, subject to the ownership arrangements and applicable law.

However, beneficiaries may inherit a property with an outstanding mortgage, tenants and ongoing management obligations.

Inheritance tax and other financial considerations may also arise.

The property may need to be sold where the estate cannot otherwise meet its liabilities.

Will Writing and Inheritance Tax

Inheritance Tax is a tax that may apply to the value of a person's estate after death.

For the 2026–2027 tax year, the standard nil-rate band is £325,000.

An additional residence nil-rate band of up to £175,000 may be available where a qualifying residence passes to direct descendants.

The additional residence allowance is subject to conditions and begins to taper for estates worth more than £2 million.

The standard Inheritance Tax rate is generally 40% on the taxable portion of an estate, although exemptions and reliefs may apply.

These figures should not be interpreted as a guarantee that every estate can pass on £500,000 or £1 million tax-free.

Can a Will Reduce Inheritance Tax?

A properly structured will may support legitimate inheritance tax planning.

For example, certain gifts to spouses, civil partners or charities may qualify for exemptions.

Trusts and other estate planning arrangements may also be relevant in particular circumstances.

However, a will does not automatically eliminate inheritance tax.

Individuals with substantial property wealth should seek specialist tax and estate planning advice.

What Is a Mirror Will?

Mirror wills are separate wills commonly prepared by couples with similar wishes.

For example, each partner may leave their estate to the other, with the remaining assets eventually passing to their children.

However, mirror wills are not automatically binding on the surviving partner.

A surviving spouse or partner may generally be able to change their own will after the first death.

Couples seeking more restrictive arrangements should obtain specialist legal advice.

What Is a Living Will?

A living will is different from a will that distributes an estate after death.

In England and Wales, the term is commonly used to describe an advance decision to refuse certain medical treatments in specified circumstances.

It does not determine who inherits property.

Individuals should distinguish between estate planning documents and arrangements concerning future health or care decisions.

Can You Change Your Will?

Yes.

A will can be changed by preparing a new valid will or, in appropriate circumstances, making a codicil.

A codicil is a formal document used to amend an existing will.

It must meet the relevant legal execution requirements.

Handwritten changes made directly to an existing will may not be legally effective.

When Should You Update Your Will?

It is sensible to review a will following major life changes, such as marriage, divorce, the birth of a child, the death of a beneficiary or a substantial change in assets.

Purchasing a property, acquiring investment assets or relocating abroad may also justify a review.

In England and Wales, marriage or civil partnership generally revokes an existing will unless a relevant exception applies, such as a will made in contemplation of that marriage.

Divorce does not normally revoke the entire will but can change how provisions relating to a former spouse operate.

Where Should You Store Your Will?

A will should be stored securely in a location accessible to the executors when required.

Common options include storage with a solicitor, a specialist will storage provider or the relevant probate registry.

Individuals may also retain the original at home, provided it is protected from loss or damage.

Executors should know where the original document is stored.

What Is Probate?

Probate is the legal process through which a deceased person's estate is administered.

In England and Wales, a grant of probate gives the named executors authority to deal with the estate where a valid will exists and a grant is required.

Probate may be necessary to sell or transfer property held solely in the deceased person's name.

However, not every estate requires probate.

The requirements depend on the assets and ownership arrangements.

Selling an Inherited Property

Beneficiaries may decide to retain, rent or sell inherited property.

Before selling, the estate's representatives must establish the necessary legal authority.

They should also consider property valuation, outstanding mortgages, tax obligations and the condition of the property.

An accurate market valuation can help executors assess the estate and determine an appropriate sale strategy.

Fraser Bond assists property owners and estate representatives with residential valuations, marketing and sales across London and the wider UK.

Will Writing for Unmarried Couples

Unmarried couples should pay particular attention to estate planning.

Unlike spouses and civil partners, unmarried partners do not automatically inherit under the ordinary intestacy rules.

Where a couple owns property as tenants in common, each person's share can generally be directed through a will.

However, property held as joint tenants normally passes automatically to the surviving joint owner.

Legal advice can help couples understand their ownership and inheritance arrangements.

Will Writing for Blended Families

Blended families may involve children from previous relationships, second marriages and competing financial responsibilities.

A will can help clarify intended inheritance arrangements.

However, certain family members or dependants may have statutory rights to seek financial provision from an estate.

Specialist legal advice is advisable where disputes or competing claims are foreseeable.

Can Someone Challenge a Will?

Yes.

A will may be challenged on grounds such as lack of testamentary capacity, undue influence, improper execution or concerns about authenticity.

Certain individuals may also be able to bring claims for financial provision under applicable inheritance legislation.

The outcome depends on the facts and relevant law.

Clear drafting, appropriate witnessing and professional advice can reduce the risk of disputes.

Frequently Asked Questions About Will Writing

How much does it cost to write a will in the UK?

A straightforward solicitor-drafted will may cost approximately £150–£350, although fees vary depending on complexity and provider.

Can I write my own will?

Yes. However, it must meet the applicable legal requirements, including proper signing and witnessing.

Do I need a solicitor to write a will?

Not always. A solicitor is particularly advisable where the estate involves property, trusts, overseas assets or complex family arrangements.

Can I leave my house to my children?

Yes, provided you have an interest that can pass under your will and the relevant legal requirements are satisfied.

Does a will override joint property ownership?

Not necessarily. Property held a