Simple Will vs Complex Will

How to tell whether your circumstances call for a simple will or a more complex, professionally advised one.

Reviewed by the Estate Advisory Group editorial teamLegally reviewed: 13 August 2026Last updated: 13 August 2026

In short

  • A simple will suits straightforward families, UK assets, and clear beneficiaries
  • Overseas property, business interests and trusts push a will into complex territory
  • A likely dispute or a vulnerable dependant is a strong sign that advice is needed
  • Blended families are not automatically complex, but often need extra thought
  • The right choice depends on your actual circumstances, not on preference alone

Not every will needs to do the same job. A simple will exists to cover the common, well understood situations most people face: naming executors, leaving an estate to a spouse or children, appointing guardians for young children, and perhaps leaving specific gifts to family, friends or charities. A complex will is needed where the underlying circumstances themselves are complicated, and the document has to reflect that.

Understanding which category your circumstances fall into is the single most useful thing you can do before choosing how to make your will, since it determines whether an online service is appropriate or whether you should be speaking to a solicitor.

What makes a will 'simple'

A will is generally considered straightforward if your assets are based in the UK, your family relationships are clear (for example one marriage, no estrangement, no disputes expected), and you want your estate to go to an easily identifiable group of people, such as a spouse, children, or named individuals and charities. In this situation, the legal drafting required is well established and does not need to be tailored beyond standard clauses.

Most adults in England and Wales fall into this category, which is exactly the gap that services such as My Posh Will are designed to fill: producing a properly worded, valid will without the cost of bespoke solicitor drafting for a situation that does not require it.

What pushes a will into 'complex' territory

Certain factors change the picture substantially. Owning property or other significant assets overseas raises questions about which country's law applies and how the assets should be dealt with. A business or agricultural interest raises succession and tax questions that a standard will is not designed to resolve. Likely disputes, whether from an estranged relative or someone you intend to leave out who might otherwise expect to inherit, raise the risk of the will being challenged after death.

A dependant who cannot manage their own financial affairs, for example due to disability, may need a trust built into the will rather than a simple outright gift. Blended families, with children from more than one relationship, second marriages, or stepchildren you want to treat differently to biological children, often need careful, specific wording to avoid unintended results. Trusts of any kind, planning around long term care fees, and estates where inheritance tax is likely to be due, all call for professional advice rather than a standardised document.

None of these factors are a criticism of your situation. They simply mean the document needs to do more work, and that work benefits from a solicitor's tailored advice.

  • Overseas property or assets
  • Business or agricultural interests
  • A likely dispute or someone being deliberately left out
  • A dependant who cannot manage their own affairs
  • Blended families with complicated intentions between children
  • Trusts, care fee planning, or probable inheritance tax

Suitability check

Is a straightforward online will right for you?

Six quick questions. Nothing is stored and there is nothing to sign up for.

  • 1.Do you own property or significant assets outside England and Wales?

  • 2.Do you own a business, a share in a partnership or agricultural land?

  • 3.Is anyone likely to challenge your will, or are you leaving out a close relative or a financial dependant?

  • 4.Do you need to provide for someone who cannot manage their own affairs, or who receives means tested benefits?

  • 5.Are you separated but not divorced, or providing for a second family or stepchildren alongside your own children?

  • 6.Do you expect inheritance tax to be payable, or do you want to use trusts or plan for care fees?

Working through your own circumstances

It is worth going through your own situation honestly rather than assuming either way. Ask where your assets are held, whether your family relationships are straightforward, whether anyone might realistically challenge your wishes, and whether anyone you want to provide for needs more than a simple, outright gift. If the answers point consistently towards simplicity, an online will service is a sound, cost-effective choice.

If one or more of the complex factors above genuinely applies to you, it is worth speaking to a solicitor, even if that means a higher cost, because the value of getting these situations right, first time, outweighs the saving from a standardised document.

It is not always all or nothing

Circumstances can also change over time. Someone with a simple will today might later start a business, buy a property abroad, or take on caring responsibilities for a dependant, at which point their will should be reviewed with fresh eyes. Equally, someone who currently has complex circumstances might simplify them later, for example after selling a business, and could reasonably move to a more straightforward will at that stage.

The right approach is to match the document to your circumstances as they actually are now, and to review that match whenever your situation changes materially.

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This guidance covers the law of England and Wales and is general information, not legal advice about your circumstances. The rules in Scotland and Northern Ireland differ.