Unreasonable Behaviour Divorce in Scotland: Everything You Need to Know

Divorcing on the grounds of unreasonable behaviour in Scotland can feel overwhelming, especially when you are already dealing with the emotional fallout of a broken marriage. The good news is that Scots law gives you a clear legal route, and the process is more straightforward than many people expect. This guide explains everything you need to know, from what counts as unreasonable behaviour under Scottish law to which court forms you will need and how much it is likely to cost.

How Scottish Divorce Law Differs From England and Wales

It is important to state clearly from the outset: divorce law in Scotland is entirely separate from the law that applies in England and Wales. Scotland has its own legal system, its own courts, and its own legislation governing divorce. If you live in Scotland, you must use the Scottish system. The information on this page applies to Scotland only.

In England and Wales, divorce was reformed in April 2022 to a purely no-fault system under the Divorce, Dissolution and Separation Act 2020. Scotland has not made that same shift. Scottish divorce law is still governed primarily by the Divorce (Scotland) Act 1976, as amended by the Family Law (Scotland) Act 2006. This means that in Scotland, you still need to demonstrate a specific legal ground for divorce, and unreasonable behaviour remains one of those recognised grounds.

Divorce in Scotland is handled by the Sheriff Court, not the Family Court as in England and Wales. Depending on how complex your case is, you will follow either the Simplified Procedure or the Ordinary Cause procedure, which we will explain in detail below.

If you are unsure whether Scottish or English law applies to you, the general rule is that you should divorce in Scotland if you and your spouse are both habitually resident in Scotland, or if Scotland was your last shared habitual residence and one of you still lives there. A solicitor can advise you if your situation is more complicated.

For a broader overview of the entire Scottish divorce process, visit our complete guide to divorce in Scotland.

What Counts as Unreasonable Behaviour Under Scots Law?

Under the Divorce (Scotland) Act 1976, the only ground for divorce in Scotland is the irretrievable breakdown of the marriage. To prove that breakdown, you must rely on one of several legally recognised facts. Unreasonable behaviour is one of those facts, formally described in the Act as the defender (your spouse) having behaved in such a way that it is unreasonable to expect the pursuer (you) to continue living with them.

There is no definitive list of what qualifies, but Scottish courts have consistently accepted the following types of behaviour:

• Physical violence or threats of violence
• Emotional abuse, including persistent humiliation or verbal cruelty
• Controlling or coercive behaviour
• Excessive alcohol or drug use that has affected family life
• Refusing to contribute financially without good reason
• Serial infidelity (note: adultery is a separate ground in Scotland, but repeated infidelity may still be pleaded as unreasonable behaviour)
• Complete withdrawal from the marriage, including refusing all communication or intimacy over a prolonged period
• Behaviour that has caused serious damage to your mental health

The behaviour does not have to be criminal, and it does not have to have happened recently, though more recent behaviour tends to carry more weight. What matters is that, viewed objectively, it would be unreasonable to expect you to remain in the marriage.

You will need to provide specific examples in your court papers. Vague or generalised statements are unlikely to be sufficient. Aim to describe actual incidents with approximate dates wherever possible. If you have written records, messages, or medical evidence, these can support your case, though they are not always required.

The behaviour must be that of your spouse. You cannot rely on your own conduct to establish this ground.

Simplified Procedure vs Ordinary Cause: Which Route Do You Take?

One of the most important decisions you will make early in a Scottish divorce is which court procedure to use. There are two main routes, and choosing the right one can save you significant time and money.

Simplified Procedure (also called the Do-It-Yourself or DIY divorce) is available where:

• You and your spouse have no children under 16
• There are no financial or property disputes to resolve through the court
• Your spouse is not going to defend the divorce
• You are not seeking any financial orders from the court

Under the Simplified Procedure, you submit a petition using either Form CP1 (if you are relying on two years of non-cohabitation with consent or five years without consent) or Form CP2 (for other grounds, including unreasonable behaviour or adultery). Because unreasonable behaviour requires Form CP2, you are using the slightly more involved simplified form, but it is still designed to be completed without a solicitor if your circumstances are uncomplicated.

Ordinary Cause is the more formal court procedure and is necessary when:

• You have children under 16 and need the court to make orders about their care
• There are disputed financial matters, property, or pension issues
• Your spouse intends to defend the divorce
• Your situation involves any complexity that the Simplified Procedure cannot accommodate

Ordinary Cause cases are more expensive and take longer. You will almost certainly need a solicitor, who may charge between £150 and £400 or more per hour for this work. If your case is straightforward and uncontested, however, the Simplified Procedure using Form CP2 is an accessible option that many people complete without professional legal help.

Not sure how much your divorce might cost overall? Our divorce cost guide breaks down typical fees for different situations.

Step-by-Step: How to File for Divorce on Unreasonable Behaviour in Scotland

If your case is suitable for the Simplified Procedure using Form CP2, here is how the process typically works from start to finish.

1. Check your eligibility. Confirm that you meet the requirements for the Simplified Procedure: no children under 16, no financial orders needed, and no defended divorce. If any of these apply, you will need the Ordinary Cause route instead.
2. Complete Form CP2. This is available from the Scottish Courts and Tribunals Service website or from your local Sheriff Court. The form asks for your personal details, your marriage details, details of the unreasonable behaviour, and confirmation of what you are asking the court to do. Write your behaviour examples clearly and factually. You do not need to be dramatic, but you do need to be specific.
3. Gather your supporting documents. You will need your original marriage certificate (or a certified copy), along with the completed form. If you have children, you will also need a completed form relating to their welfare, even if the Simplified Procedure otherwise applies.
4. Submit your papers to the Sheriff Court. File your completed CP2 form and supporting documents at your local Sheriff Court. You will pay a court fee at this stage. As of 2026, the fee for a Simplified Procedure divorce is approximately £128, though you should check the current fee with your local court as charges can change.
5. Your spouse is served. The court will arrange for your spouse (the defender) to receive a copy of the petition. They have the opportunity to respond. If they do not respond or do not contest the divorce, the process moves forward without a hearing.
6. The Sheriff grants the decree. If the Sheriff is satisfied with your application, they will grant a Decree of Divorce. This is the official court order dissolving your marriage.
7. Obtain your Extract Decree. The Extract Decree is the document that formally proves your marriage has been legally ended. You will need this for practical purposes such as changing your name, remarrying, or dealing with financial institutions. You must apply for it separately from the Sheriff Court after the decree is granted, and there is a small additional fee.

The whole Simplified Procedure process typically takes between 2 and 4 months, depending on the court's workload and whether your spouse responds promptly.

What Happens if Your Spouse Defends the Divorce?

If you are filing on unreasonable behaviour, there is always a possibility that your spouse will choose to defend the action. This means they dispute either the behaviour you have described or the divorce itself. Defended divorces in Scotland are relatively uncommon, but they do happen.

If your spouse lodges a defence, your case will move into the Ordinary Cause procedure, even if it started as a Simplified Procedure application. At that point, you will need to consider instructing a solicitor, as defended cases involve formal pleadings, potential hearings, and sometimes proof (a formal hearing at which evidence is led). Solicitor costs for a defended case can run into several thousand pounds, so it is worth understanding the risks before you file.

In practice, many defences are eventually withdrawn before the case reaches a full hearing. Sometimes a spouse defends the divorce not because they genuinely want to stay married, but because they are upset about the behaviour alleged or want to negotiate financial terms. In those situations, negotiation or mediation may resolve matters without a contested hearing.

If your spouse cannot be traced or is living abroad, there are separate procedures for serving court papers, and you should seek legal advice on how to proceed in those circumstances.

It is also worth noting that, in Scotland, the way you describe the behaviour in your court papers becomes part of the court record. Some people prefer to use the two-year or five-year separation grounds instead, precisely to avoid airing grievances in writing. If separation grounds are available to you, it may be worth considering whether unreasonable behaviour is the most appropriate route for your particular situation.

Financial and Property Matters: What Happens Alongside the Divorce?

Obtaining a Decree of Divorce in Scotland is one thing. Resolving financial and property matters is another, and the two processes are separate. It is a common misconception that the divorce itself sorts out who gets what. It does not.

In Scotland, the financial framework for divorce is set out in the Family Law (Scotland) Act 1985. The Act establishes a principle of fair sharing of the matrimonial property, which is broadly defined as the assets and debts acquired by either spouse during the marriage, up to the date of separation. Scotland does not use the concept of a consent order (that is an England and Wales mechanism), so the approach to formalising financial settlements is different.

In Scotland, you can resolve financial matters in several ways:

• Minute of Agreement: A formal written agreement between you and your spouse, drafted by solicitors, that sets out how assets, property, pensions, and maintenance are divided. This is the Scottish equivalent of a separation agreement and, once signed, is legally binding.
• Joint application to the court: If you cannot agree, either party can ask the Sheriff Court to make a financial order as part of the divorce proceedings.
• Mediation: A mediator can help you and your spouse reach agreement without going to court, which saves time and money.

If you have pensions to consider, the rules in Scotland are specific and can be complex. Our guide to pension sharing on divorce in Scotland explains how pension sharing orders work under Scots law.

You can also use our free divorce financial calculator to get a clearer picture of what a fair financial split might look like in your situation.

Remember: if you use the Simplified Procedure, you are giving up the right to ask the court to make financial orders as part of that divorce. If financial matters are unresolved, either sort them out first with a Minute of Agreement, or use the Ordinary Cause procedure instead.

Costs and How to Keep Them Manageable

One of the biggest concerns people have about divorce is the cost. The good news is that an uncontested divorce on unreasonable behaviour in Scotland does not have to be expensive, particularly if you use the Simplified Procedure and manage the process yourself.

Here is a rough breakdown of typical costs as of 2026:

If you cannot afford court fees, you may be able to apply for fee exemption through the Scottish Civil Justice Council's fee exemption scheme, depending on your income and benefits.

Many people find that having a good plain-English guide makes a significant difference to their confidence in handling the paperwork themselves. That is exactly what Clarity Guide provides, with step-by-step divorce guidance available from just £37, compared to solicitor costs that can run to hundreds or thousands of pounds for the same procedural work. You can find out more at how to divorce without a solicitor in the UK.

Even if you eventually instruct a solicitor for part of the process, being well-informed before you do so can help you use their time more efficiently, which keeps your bill down.