How Online Wills Work

How the online will process works from start to finish, what a service actually does with your answers, and why signing matters.

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

In short

  • You answer guided questions; the service converts them into formal legal wording
  • Nothing is legally binding until the document is printed, signed and witnessed correctly
  • Most straightforward wills can be completed online in well under an hour
  • You typically get a chance to review and amend your answers before finalising
  • The signing stage under the Wills Act 1837 cannot be done online; it needs physical witnesses

If you have never made a will before, the idea of doing it online can feel like a leap of faith: how does a website turn your answers into a legal document, and how do you know it actually counts? The process is more straightforward than it sounds, and understanding each stage makes it much easier to trust the result.

At a high level, an online will service asks you structured questions about your family, your assets and your wishes, uses your answers to build the specific legal wording of your will, and then gives you a document to review, print and sign in front of witnesses. The technology does the drafting; the law still requires you to sign it properly by hand.

This guide walks through each stage so you know exactly what to expect, whether you use myposhwill.co.uk or another provider.

Stage one: answering guided questions

The process usually starts with questions about you and your family: your marital status, whether you have children, and who you would like as executor, the person who administers your estate after you die. From there it moves to your wishes: specific gifts to particular people, guardians for children under 18, and who should inherit the residue, everything left once gifts and debts are dealt with.

Good services ask these in a logical order and explain unfamiliar terms as they go, so you are not expected to already know legal vocabulary like 'residuary estate' or 'per stirpes' before you can answer sensibly.

Stage two: your answers become legal wording

Behind the scenes, the service takes your specific answers and builds them into the formal clauses a will actually needs: an executor appointment clause, gift clauses, a residue clause, and any guardian appointments. This is different from a blank template you fill in yourself, because the final wording is generated to match your circumstances rather than being edited by hand.

This matters for validity as much as convenience: precisely worded clauses reduce the risk of ambiguity that could otherwise cause confusion or dispute after your death.

Stage three: reviewing and amending your draft

Once your will is drafted, you should be able to review the full document before anything is finalised, checking names, addresses, gift descriptions and the residue clause all match what you intended. A well-built service lets you go back and revise any answer at this stage without extra charge.

Take this review seriously. It is far easier to correct a mistake, a wrong name, an outdated address, a forgotten gift, at this stage than after the document has been signed and witnessed.

Stage four: printing, signing and witnessing

This is the one part of the process that cannot happen online. Under section 9 of the Wills Act 1837, your will must be in writing and signed by you (or someone else in your presence and at your direction), with your signature made or acknowledged in front of two witnesses present together, who then also sign the will themselves in your presence.

Your witnesses must be independent adults who are not beneficiaries of the will, and not married to or in a civil partnership with a beneficiary, otherwise that beneficiary loses their gift under section 15 of the Act. A good online service gives you clear written instructions for this step, since it is the single most common way DIY wills fail.

Stage five: storing and updating your will

Once signed, your will becomes a physical document that needs to be kept somewhere safe and findable, such as a fireproof box at home, with a solicitor, or in a dedicated will storage service. Make sure your executor knows where it is, since a valid will nobody can find causes the same problems as having no will at all.

The online process is not a one-off event you never revisit. Major life changes, marriage, divorce, a new child, buying property, are all good reasons to make a new will, and marriage in particular automatically revokes an earlier will unless it was made in contemplation of that marriage.

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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.