Your Will is one of the most important legal documents you’ll ever create. It’s your way of ensuring your wishes are carried out and your loved ones are taken care of after you’re gone. Yet despite its importance, many people make crucial mistakes when preparing their Will that can have serious consequences.
Over the years, I’ve seen how these Will writing errors can cause unnecessary stress, delays, and costs for families during an already difficult time. In worst-case scenarios, they can even render a Will completely invalid. The good news? Most of these Will mistakes are easily avoidable once you know what to watch out for.
Let me walk you through the five most common Will mistakes I encounter and, more importantly, how you can avoid them.
1. Incorrect Will signing and witnessing requirements
This is probably the most common Will mistake I see, especially with DIY Wills. It might seem straightforward, but there are strict legal requirements that must be followed for your Will to be valid in England & Wales.
You must sign your Will in the presence of two independent witnesses, and they must then sign it in your presence too. Your witnesses need to be over 18, mentally capable, and – this is crucial – they can’t be beneficiaries in your Will (or married to someone who is). If they are, they could lose their inheritance entirely.
When these Will signing requirements aren’t met properly, your Will can be declared invalid, meaning the intestacy laws will decide who gets what from your estate. This rarely reflects what you actually wanted, and can lead to loved ones being excluded while unintended family members benefit.
How we can help
When you work with us, we ensure your Will is prepared and executed in full compliance with these legal requirements, so you can have complete confidence that your Will is legally binding and your wishes will be carried out.
2. Not considering inheritance tax planning in your Will
Inheritance tax (IHT) is something many people prefer not to think about, but ignoring it can significantly reduce what your beneficiaries actually receive. I often meet families who are shocked by the tax bill they’re facing simply because proper planning wasn’t done earlier.
The good news is that there are several reliefs available, including the Nil Rate Band and Residence Nil Rate Band. However, the landscape is changing – from April 2026, there will be significant changes to IHT relief for business and agricultural assets.
How we can help
Without proper inheritance tax planning built into your Will, your estate might pay more tax than necessary. We can explore various tax-efficient strategies with you, such as setting up trusts or making lifetime gifts, to help preserve more of your wealth for the people you care about.
3. Ignoring digital assets in your Will
This is a modern challenge that many people don’t even think about. Beyond your physical possessions and bank accounts, you likely have a digital footprint that holds real value – and your executors will need access to it.
Research shows, if you’re under 70, you probably have 150 to 200 digital accounts. These might include cryptocurrency wallets, trading apps, cloud storage with precious family photos, social media accounts, or subscription services that need cancelling.
Without a clear record of these accounts, your executors could spend months or even years trying to track everything down. I always recommend using a password manager or digital vault to keep track of your online accounts and login details.
How we can help
We typically prepare what’s called a Letter of Wishes alongside your Will – essentially a guide for your executors explaining how you’d like your digital assets handled, whether that’s preserving precious memories or properly shutting down accounts.
4. Failing to update your Will regularly
I can’t stress this enough: your Will isn’t something you write once and forget about. Life changes, and your Will should change with it.
Marriage, divorce, having children, acquiring new assets – all of these can dramatically affect how your Will works. I’ve seen cases where someone remarried but never updated their Will, only for the family to discover that marriage automatically revoked the old Will, leaving the estate to be distributed under intestacy rules instead.
Tax laws change too. What made sense for inheritance tax planning five years ago might not be the best approach today, especially with upcoming changes to business and agricultural relief.
How we can help
I recommend reviewing your Will every five years as a minimum, or whenever there’s a significant change in your circumstances or those of your executors and beneficiaries. Regular Will reviews give you peace of mind and ensure your Will continues to reflect your current wishes.
5. Not having a Will in place
This might seem obvious, but you’d be surprised how many people put off making a Will. Often, it’s because they think they’re too young or don’t have enough assets to worry about.
But here’s the thing: a Will isn’t just about distributing property. It’s about choosing guardians for your children, arranging care for your pets, and making sure any charitable donations you want to make actually happen.
Having a Will also speeds up the probate process, saving your loved ones time, money, and stress during an already difficult period.
Without a Will, the intestacy rules decide who inherits from your estate, following a strict hierarchy:
- Spouse or civil partner
- Children/grandchildren
- Parents
- Brothers and sisters
- Half-brothers and half-sisters
- Grandparents
- Uncles and aunts
Importantly, this means unmarried partners and stepchildren are completely excluded – something that comes as a shock to many families.
How we can help
We can help you create a comprehensive Will that ensures your wishes are followed and your loved ones are protected, regardless of your circumstances. Don’t leave your family’s future to chance – let us guide you through the process of creating a Will that truly reflects your intentions.
How to avoid Will mistakes and protect your legacy
The common thread through all these Will writing mistakes is that they’re preventable. Whether it’s ensuring proper Will signing procedures, planning for tax efficiency, or simply keeping your Will up to date, taking action now can save your loved ones significant stress and expense later.
At our estate planning team, we specialise in creating bespoke Wills that truly reflect our clients’ wishes and circumstances. We understand that every family is different, and we work closely with you to ensure your Will does exactly what you want it to do.
If you’d like to discuss your Will or have concerns about any of the issues I’ve mentioned, please get in touch. Taking that first step towards securing your legacy and giving your loved ones peace of mind is always worth it.
