When planning to reduce inheritance tax on property, businesses, and other assets by passing wealth to your children during your lifetime, one important issue is often overlooked: what happens to that wealth if your child later divorces or separates?
For parents seeking to preserve family wealth across generations, pre-nuptial and post-nuptial agreements can be one of the most effective protective tools available.
What is a pre-nuptial agreement?
A pre-nuptial agreement (commonly known as a “pre-nup”) is a legal document entered into by a couple before marriage or civil partnership. It sets out how assets, income, and liabilities should be treated if the relationship later breaks down through separation or divorce.
A post-nuptial agreement covers the same issues but is entered into after the marriage or civil partnership has taken place.
From a parental perspective, these agreements are frequently used to protect pre-existing family wealth, including:
- Inherited assets
- Gifts from parents
- Family homes
- Trust interests
- Investment portfolios
- Interests in family businesses
Although the agreement is between the couple, it can play a crucial role in safeguarding assets that parents intend to pass down or keep within the family.
Do pre-nuptial agreements work in the UK?
Pre-nuptial agreements are not automatically legally binding in England and Wales. However, they are now given significant weight by the courts following the Supreme Court decision in Radmacher v Granatino (2010).
The courts will generally uphold a pre-nuptial agreement provided certain conditions are met. In particular, the agreement should:
- Be entered into freely, without pressure or coercion
- Include full and frank financial disclosure from both parties
- Be signed well in advance of the wedding (ideally at least 28 days beforehand)
- Be supported by independent legal advice for each party
- Be fair, particularly in meeting the future needs of each spouse
An agreement that leaves one party in financial hardship or fails to properly account for the needs of children is unlikely to be upheld. When carefully planned and well drafted, however, a pre-nuptial agreement can be a highly effective protective measure.
What can a pre-nuptial agreement cover?
A well-structured pre-nuptial agreement can address a wide range of financial matters, including:
- Assets owned before the marriage
- Trust interests, family gifts, and inheritances (whether received or anticipated)
- Property, including family homes and investment properties
- Business interests and shareholdings
- Savings, investments, and pensions
- Personal items such as jewellery, artwork, or vehicles
- Debts and other liabilities
For parents, one of the key benefits is the ability to ring-fence family wealth so that it is clearly identified as non-matrimonial property, reducing the risk of it being shared on divorce.
When do pre-nuptial agreements make sense?
Pre-nuptial agreements are not just for the ultra-wealthy. They are particularly relevant where:
- Parents intend to make substantial lifetime gifts to their children
- A child expects to receive an inheritance in the future
- The family owns property, land, or a business
- There is a significant imbalance of wealth between partners
- It is a second marriage and assets are to be preserved for children from a previous relationship
In affluent areas, pre-nuptial agreements are increasingly common and are widely viewed as a sensible, forward-thinking element of estate and succession planning.
How parents can be involved
Although parents are not parties to the agreement, they often play a vital role. Pre-nuptial agreements frequently sit alongside trusts and other family wealth structures, and parents may choose to make financial distributions conditional on appropriate legal protection being in place.
Handled sensitively, early discussions can help avoid misunderstandings later and provide reassurance to all parties involved.
Next steps: Taking professional advice
Pre-nuptial and post-nuptial agreements are bespoke legal documents. Their effectiveness depends on early planning, strategic thinking, and careful drafting. Taking professional advice well before wedding plans are underway is strongly recommended.
When approached constructively, these agreements can offer clarity and reassurance for everyone involved, helping families minimise uncertainty and avoid future disputes.
Parents who would like to understand how pre-nuptial agreements fit into wider family planning are welcome to have an initial, informal conversation with one of our experienced prenuptial and postnuptial agreement solicitors.
