5 Common Mistakes Executors Make During DIY Probate (And How to Avoid Them)

• Posted onFebruary 9, 2026

Is DIY Probate Worth It?

Some executors choose to administer an estate, including obtaining a Grant of Probate, themselves to save costs. However, administering an estate is a legal process with strict rules and executors have personal liability to ensure matters are handled correctly. Many executors unintentionally make mistakes that can delay the Probate process, increase tax exposure or result in financial loss to the estate. Here are the five most common pitfalls in the estate administration process and how a solicitor can help to avoid them.

1. Undervaluing the Estate

When administering an estate, each asset will need to be valued as at the date of death. Incorrect property or asset valuations can lead to:

• Underpaid Inheritance Tax
• Penalties from HMRC
• Disputes between beneficiaries.

A solicitor ensures the correct valuations are obtained, requesting professional valuations if necessary, which provides accuracy, evidence and protection.

2. Missing Debts or Unknown Creditors

Executors can be personally liable if a creditor comes forward after estate funds have been distributed. A solicitor ensures:

• Correct notices are placed
• Debts are identified
• Debts are paid in the correct order.

3. Errors in Inheritance Tax Forms

When applying for a Grant of Probate, executors may be required to complete an Inheritance Tax Return to submit to HM Revenue and Customs. Inheritance Tax paperwork is complex, and mistakes can cause:

• Delays in the Probate application
• HMRC investigations
• Unexpected tax bills.

Solicitors ensure forms are complete, compliant and submitted on time, to reduce the above risks.

4. Distributing the Estate Too Early

Before executors look to distribute an estate, they must consider whether:

• All assets have been collected in
• All debts and taxes are paid
• Beneficiaries approve the estate accounts, which confirm all of the transactions that have taken place in the estate.

Distributing funds too early, and a liability of the estate then being found at a later stage, is a significant risk to the executors.

5. Misinterpreting the Will or Intestacy Rules

A Will may include trusts, life interests or ambiguous clauses. Without legal guidance, executors may:

• Misinterpret clauses and how they should be applied
• Overlook clauses
• Benefit the wrong people.

A Solicitor will interpret documents accurately and ensure the estate is distributed correctly.

Avoid the Risks. Get Expert Probate Support

DIY probate seems appealing, but even small mistakes can have serious consequences. Our experienced Private Client team in Stroud or Gloucester can manage the entire process or support you with the complex areas, giving you peace of mind and protecting you from liability.

To find out more about professional support in estate administration you can visit our Private Client Law pages. You can get in touch with the team using the form on this page or by visiting here. Alternatively, you can call us on 01453 847200.