Understanding the Legal and Emotional Impact
The definition of adultery in UK law is specific: it refers to a husband or wife engaging in sexual intercourse with someone of the opposite sex outside of their marriage. Other actions, like kissing, flirting, or texting, are not considered adultery.
Is Adultery Still Grounds for Divorce in the UK?
Since the introduction of no-fault divorce in April 2022, adultery is no longer a legal reason for divorce in the UK. Previously, grounds for divorce included adultery, unreasonable behaviour, desertion, and long-term separation. However, under the new divorce law, couples can now apply for a divorce application without having to assign blame or provide specific reasons.
This means that while adultery may cause a marriage breakdown, it is not relevant in divorce proceedings. However, the impact of adultery can still be deeply felt by both spouses, often influencing decisions regarding child arrangements, financial settlements, and emotional well-being.
Is Sleeping With Someone Whilst Separated Still Adultery?
Separation and divorce are emotionally challenging experiences, often raising difficult questions about what is legally and morally acceptable. When it comes to adultery and divorce in the UK, many couples assume that once they are separated, they are free to start new relationships.
However, under divorce law, the legal definition of adultery remains clear: until a divorce application has been finalised and a decree absolute granted, engaging in sexual intercourse with a new partner is still considered adultery.
Understanding the grounds for divorce and how the divorce process works can help ensure that spouses navigate their divorce proceedings with clarity and confidence. Seeking legal advice early from experienced divorce solicitors is always advisable.
Does Adultery Affect Divorce in the UK?
Legally, adultery no longer affects the divorce process, but it can still play a role in the wider negotiations. For example, if a spouse cheats, it may be cited as an example of unreasonable behaviour, which was previously a valid reason for divorce.
It is also a common misconception that the spouse who commits adultery must pay for the divorce case or cover the divorce fees. In reality, the person who files the divorce application is responsible for covering the costs, and both parties usually pay their own solicitors’ fees.
While adultery does not influence the legal outcome of divorce and separation, it can make negotiations more challenging. Feelings of betrayal, anger, or resentment may complicate discussions about child custody, the division of assets, or spousal maintenance. Seeking guidance from experienced divorce solicitors can help ensure that emotional distress does not lead to unfair agreements.
Adultery and Financial Settlements
A common misconception is that adultery directly influences divorce settlement negotiations. However, under UK divorce law, divorce courts do not consider adultery grounds when deciding how assets should be divided. Instead, the financial settlement is based on several key factors, including:
- The length of the marriage
- The financial needs of both spouses
- The well-being and needs of any children (child arrangements)
- Each spouse’s income, financial contributions, and earning capacity
- The division of the family home and other assets
While adultery itself does not impact the divorce process, there are specific circumstances where financial matters can be affected:
Adultery and Financial Dissipation
If a partner has used significant marital funds to support an affair—for example, by gifting large sums of money, financing a new home, or covering lavish expenses—this could be considered financial dissipation.
In such cases, this expenditure may be considered during divorce proceedings, particularly if it has unfairly diminished the marital assets. If one spouse has recklessly spent joint finances on a new partner, the court may adjust the financial settlement accordingly to ensure fairness for the other spouse.
Cohabitation and Financial Settlements
While adultery itself is not a factor in divorce applications, future cohabitation can influence financial outcomes. If the Respondent (the spouse who did not file for divorce) moves in with a new partner, the court may consider their new household’s financial situation. This is particularly relevant in cases involving spousal maintenance.
For example:
- If the Respondent is living in a property owned by their new partner, their housing needs may be considered reduced.
- If the new partner contributes to household expenses, the spousal maintenance payments from the ex-spouse may be adjusted.
As part of the divorce settlement process, full financial disclosure is required, and the court may ask whether either party intends to cohabit or remarry.
Religious Considerations and Adultery
In some religious traditions, adultery can have long-term consequences beyond legal proceedings. For example, in Orthodox Jewish law, a woman who has committed adultery may be prohibited from remarrying in a synagogue. Similarly, other religious institutions may impose restrictions on remarriage following an affair.
If different cultural views or religious considerations are a concern, it is essential to seek legal advice to fully understand the implications before making any decisions.
The Importance of Professional Legal Guidance
While adultery no longer plays a role in grounds for divorce, its emotional and financial impact can still be significant. Understanding how finances, child custody, and spousal maintenance may be affected requires expert advice from a specialist family law solicitor. Seeking professional guidance ensures that your divorce case is handled fairly and that you receive the best possible outcome.
How Can a Family Law Solicitor Help?
Even though adultery no longer plays a role in divorce proceedings, its emotional consequences can still impact the outcome of a divorce case. If trust has been broken, it can make negotiations regarding child arrangements, custody, and finances more difficult.
Having an experienced family law solicitor by your side ensures that your rights are protected and that emotions do not negatively influence the outcome of your case. Whether you need advice on spousal maintenance, child custody, or protecting your financial interests, professional guidance is essential when dealing with adultery and divorce in the UK.
How Lloyd Platt & Co Can Help
At Lloyd Platt & Co, we understand that divorce and separation can be challenging, particularly when adultery is involved. Our team of experienced divorce solicitors provides compassionate and practical legal advice to help you navigate the divorce process with confidence.
We offer expert support on:
- The divorce application and legal steps involved
- Child arrangements and custody disputes
- Financial settlements and asset protection
- Negotiating fair spousal maintenance
- The division of the family home and property assets
If you need guidance on any aspect of divorce law, including adultery and divorce in the UK, we are here to help. Contact Lloyd Platt & Co today by calling 0208 343 2998 or filling in our online enquiry form to speak to one of our expert solicitors.



