If your marriage has broken down because of how your spouse has treated you, you may be able to use unreasonable behaviour as the basis for your divorce in Scotland. Scots law has its own distinct rules, procedures, and court forms that are completely separate from the law in England and Wales. This guide explains what unreasonable behaviour means in a Scottish legal context, how to evidence it, and which court procedure applies to your situation.
How Scots Law Treats Unreasonable Behaviour
Scotland has its own legal system, and divorce law north of the border is governed by the Divorce (Scotland) Act 1976 as amended. It is important to understand from the outset that this guide applies to Scotland only. If you live in England or Wales, the rules are different. You can read more in our complete guide to divorce in England and Wales.
In Scotland, there is only one ground for divorce: the irretrievable breakdown of the marriage. The court does not grant a divorce simply because you say the marriage is over. You must demonstrate that breakdown through one of several accepted facts. Unreasonable behaviour is one of those facts.
Specifically, the law allows you to rely on the fact that your spouse has behaved in such a way that you cannot reasonably be expected to live with them. This is often called the "behaviour" fact, and it is the same concept most people refer to when they say unreasonable behaviour divorce.
Unlike in England and Wales, Scotland still uses fault-based facts alongside non-fault options. This means that if you want a divorce sooner than the separation periods allow, demonstrating your spouse's behaviour remains a practical route for many people.
It is worth noting that Scotland abolished the old five grounds for divorce in 2006. Since then, everything flows through the single ground of irretrievable breakdown, evidenced by one of the accepted facts. Understanding this structure helps you see where unreasonable behaviour fits within the broader legal framework.
What Counts as Unreasonable Behaviour in Scotland?
The behaviour does not have to be violent or extreme to qualify. The legal test is whether it would be unreasonable to expect you to continue living with your spouse, given how they have behaved. Scottish courts take a broad view of what this can include.
Common examples that courts have accepted include:
- Physical violence or threats of violence
- Emotional abuse, controlling behaviour, or coercive control
- Verbal abuse, persistent criticism, or humiliation
- Unreasonable jealousy or unfounded accusations of infidelity
- Alcohol or drug misuse that has had a serious impact on family life
- Financial irresponsibility, such as running up significant debts without consent
- Complete withdrawal from the relationship, including refusing intimacy or communication over a prolonged period
- Gambling that has placed the family in financial difficulty
- Persistent prioritising of work or outside interests to the detriment of family life
It is not a tick-box exercise. The Sheriff will consider the overall picture of how the marriage deteriorated and whether your account is credible and supported by evidence.
One important point specific to Scotland: you cannot rely on your spouse's behaviour if you have continued to live together for more than three months after the last incident you intend to rely on. This is a statutory time limit under Scots law. If you have lived together for longer than that since the behaviour occurred, you may need to consider the separation-based facts instead, or identify more recent behaviour to rely upon.
If you are unsure whether what you have experienced crosses the legal threshold, speaking to a solicitor or working through a structured guide can help you assess your position before committing to a particular approach.
Simplified Procedure Versus Ordinary Cause: Which Applies to You?
In Scotland, divorces are handled in the Sheriff Court. There are two procedures available, and which one applies to you depends on your circumstances.
Simplified Procedure (also called the Do-It-Yourself or DIY procedure) is available where there are no children under 16, no financial claims to resolve, and both parties agree. It uses the Form CP1 (for married couples) or Form CP2 (for civil partners). This is a written application that goes to the Sheriff Court without a hearing in most cases. It is the more straightforward and affordable route.
However, unreasonable behaviour cannot be used under the Simplified Procedure. The Simplified Procedure is only available for the two non-fault facts: one year's separation with consent, or two years' separation without consent. If you want to rely on unreasonable behaviour, you must use the Ordinary Cause procedure.
The Ordinary Cause procedure involves lodging an Initial Writ with the Sheriff Court. This is a more formal document that sets out your case. Your spouse is then served with the writ and has an opportunity to respond. Proceedings can proceed by agreement (undefended) or, if your spouse contests the divorce, the case proceeds to a hearing.
Most unreasonable behaviour divorces in Scotland are undefended, even when the other party initially disputes the grounds. An undefended Ordinary Cause is still more time-consuming and expensive than the Simplified Procedure, but it is entirely manageable, particularly if you are well-prepared.
For a broader overview of how Scottish divorce procedures work from start to finish, see our complete guide to divorce in Scotland.
The Step-by-Step Process for an Unreasonable Behaviour Divorce in Scotland
Here is how the process typically unfolds when you use unreasonable behaviour as your fact in an Ordinary Cause divorce in Scotland.
- Prepare your Initial Writ. This document introduces your case to the Sheriff Court. It must include your personal details, your spouse's details, the ground for divorce (irretrievable breakdown), the specific fact you are relying on (behaviour), and a brief narrative of the behaviour itself. You do not need to write an essay, but the examples must be specific enough to be credible.
- Lodge the Initial Writ at your local Sheriff Court. You pay the court fee at this stage. As of 2026, the fee for an Ordinary Cause divorce is in the region of £170, though this can change. The court assigns a case reference number.
- Service on your spouse. The Sheriff Court serves the Initial Writ on your spouse, usually by recorded delivery post or through a sheriff officer. Your spouse then has a period in which to respond, called the period of notice.
- Your spouse's response. If they do not intend to defend the case, the divorce can proceed as undefended. If they lodge a notice of intention to defend, the case proceeds to further procedure, which may include a hearing.
- Decree of divorce. Once the court is satisfied with your evidence and the procedural requirements are met, the Sheriff grants a Decree of Divorce. In an undefended case, this can happen without you attending court in person.
- Extract Decree. The final step is obtaining your Extract Decree from the Sheriff Court. This is the official document that proves your divorce and allows you to remarry if you wish. You usually need to request this separately and pay a small fee.
The entire process for an undefended Ordinary Cause in Scotland typically takes between three and six months, though this depends on court workloads at your local Sheriff Court.
Evidence and Corroboration: What Scotland Requires
One of the most important differences between Scots law and the law in England and Wales is the requirement for corroboration. In Scotland, a court cannot rely solely on your own uncorroborated evidence. You need at least one other source of evidence to support the facts you are asserting.
This does not mean you need a witness who personally saw every incident. Corroboration can come from a range of sources, including:
- A supporting affidavit from a friend, family member, or neighbour who is aware of the behaviour and its impact on you
- Medical records, such as GP notes, counselling records, or hospital attendances related to the impact of the behaviour
- Police call-out records or incident numbers, particularly in cases involving violence or threats
- Text messages, emails, or social media messages where the behaviour is evident or acknowledged
- Financial records in cases of financial abuse or gambling
In practice, many undefended behaviour divorces in Scotland proceed on the basis of your own affidavit supported by a single corroborating affidavit from someone who knows you and is aware of the circumstances. Your solicitor or a notary public can help you prepare affidavits correctly.
If you are managing your divorce without a solicitor, it is worth investing time in organising your evidence carefully before you lodge your Initial Writ. Gaps in evidence can cause delays or require you to provide additional material later in the process.
If financial matters are intertwined with the behaviour, for example where a spouse has hidden assets or run up debts, it is worth reading our guide to protecting your finances during divorce before proceedings begin.
Costs: What to Budget for an Unreasonable Behaviour Divorce in Scotland
Cost is a very real concern for most people going through divorce. An unreasonable behaviour divorce in Scotland will generally cost more than a Simplified Procedure divorce simply because it uses the Ordinary Cause process, which involves more steps and paperwork.
Here is a rough breakdown of what you might expect:
| Cost item | Approximate cost |
|---|---|
| Sheriff Court lodging fee (Ordinary Cause) | Around £170 |
| Sheriff officer service fee (if required) | Around £80 to £150 |
| Extract Decree fee | Around £10 to £20 |
| Solicitor fees (if instructed) | £150 to £400+ per hour |
| Notary public fee for affidavits | Around £20 to £50 per affidavit |
If you instruct a solicitor to manage the entire process, the total bill for an undefended Ordinary Cause divorce in Scotland typically ranges from £800 to £2,500 or more depending on complexity and the firm involved. If your spouse defends the case, costs can rise significantly.
Many people choose to handle as much of the process themselves as possible to reduce costs. Understanding the procedure in detail before you begin is one of the most effective ways to keep things moving without unnecessary delays or additional fees.
Clarity Guide provides a plain-English divorce guide for Scotland from just £37, which sets out the full process step by step and helps you understand what is expected at each stage. You can also use our free divorce financial calculator to get a clearer picture of your overall financial position.
For a fuller breakdown of typical divorce costs across the UK, see our guide on how much divorce costs in the UK.
Children, Financial Orders, and Unreasonable Behaviour: What Happens Next?
Obtaining a Decree of Divorce is one part of the process. For many people, the more pressing concerns are arrangements for children and how finances will be divided. These are dealt with separately from the divorce itself under Scots law.
Children: Scottish courts make decisions about children based on the welfare of the child as the paramount consideration, in line with the Children (Scotland) Act 1995. Unreasonable behaviour by one parent can be relevant to arrangements for children, particularly where the behaviour has involved violence, abuse, or substance misuse. However, the court will not automatically limit a parent's involvement simply because they were the respondent in a behaviour divorce. Each case is assessed individually.
Financial settlement: Scotland has its own approach to dividing matrimonial property on divorce, governed by the Family Law (Scotland) Act 1985. The starting point is equal sharing of the net value of matrimonial property, though there are several principles that can adjust this. Unreasonable behaviour does not, in itself, affect the financial settlement. The financial division is based on the principles in the 1985 Act, not on who was at fault in the marriage.
If pension assets are involved, these can be significant and are worth careful consideration. Scotland has specific rules on pension sharing on divorce, and you can read more in our detailed guide on pension sharing on divorce in Scotland.
Financial orders can be sought as part of the Ordinary Cause proceedings or through a separate action. It is usually more efficient to deal with financial matters at the same time as the divorce where possible, so planning ahead at the outset can save time and expense later.
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