There are two legal grounds for divorce in Scotland, and four ways of proving the main one. The distinction matters more than it sounds: the ground is the breakdown of the marriage, and the four facts are simply the routes to proving it. This guide sets out each of them, which one is likely to apply to you, and how the choice affects timing and cost.
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Legal review: Brian Rooney, Managing Partner and Law Society of Scotland Accredited Specialist in Family Law. Last reviewed: 20th July 2026.
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There are two legal grounds for divorce in Scotland under section 1 of the Divorce (Scotland) Act 1976: that the marriage has broken down irretrievably, or that an interim gender recognition certificate has been issued to either party after the date of the marriage. Irretrievable breakdown — by far the more common ground — must be established by proving one of four statutory facts: adultery, unreasonable behaviour, one year’s non-cohabitation with the other spouse’s consent, or two years’ non-cohabitation without consent.
You may see these four facts described elsewhere as “four grounds for divorce”. Strictly, they are not grounds; they are the ways in which the single ground of irretrievable breakdown is proved. The distinction matters, because the ground is the breakdown of the marriage itself — not the conduct used to evidence it.
This guide covers Scots law only. Divorce law in England and Wales is different, and English guidance does not apply in Scotland.
The two legal grounds
Irretrievable breakdown of the marriage. The court must be satisfied that the marriage has broken down beyond repair. Section 1(2) of the 1976 Act sets out the only four ways in which this can be established, explained below.
Interim gender recognition certificate. Where an interim gender recognition certificate under the Gender Recognition Act 2004 has been issued to either spouse after the date of the marriage, that is itself a ground of divorce. No separation period and no proof of fault is required. This ground is rarely used, and the position where a full certificate has been issued is different — take advice on your specific circumstances.
A fifth statutory fact, desertion, was abolished by the Family Law (Scotland) Act 2006, which also reduced the separation periods to their current lengths of one and two years.
The four facts establishing irretrievable breakdown
Adultery
Irretrievable breakdown is established where, since the date of the marriage, your spouse has had sexual intercourse with another person of the opposite sex. The legal definition is deliberately narrow. Other forms of infidelity — including a sexual relationship with someone of the same sex — are not adultery in law, although they will usually support a case founded on unreasonable behaviour instead.
The same definition applies in same-sex marriages. A spouse in a same-sex marriage may rely on the other spouse’s adultery where that statutory definition is satisfied; sexual conduct falling outside the definition may instead be relevant to unreasonable behaviour.
You cannot found on your own adultery — only on your spouse’s. Adultery cannot be relied upon where it has been condoned or connived at. Continuing or resuming living together after learning of the adultery does not, by itself, amount to condonation. However, if you go on living with your spouse beyond three months from the point at which cohabitation continued or resumed with knowledge of the adultery, the law treats the adultery as condoned and it can no longer found the divorce. This is not a general deadline for raising proceedings — it is a rule about living together after discovery. The statutory wording is technical, and the effect can depend on precisely when cohabitation continued or resumed and when knowledge or belief of the adultery arose. If you have learned of an affair and are still under the same roof, take advice promptly.
Read our detailed guide to adultery in Scottish divorce.
Unreasonable behaviour
Irretrievable breakdown is established where, since the date of the marriage, your spouse has behaved in such a way that you cannot reasonably be expected to continue living with them. The behaviour may be active or passive, and it does not matter whether it results from mental abnormality.
There is no fixed list. Physical violence, verbal abuse, coercive or controlling behaviour, financial irresponsibility, substance misuse affecting family life, and persistent neglect of the family have all founded successful actions. The test is objective: could you, viewed reasonably, be expected to go on living with this conduct? The behaviour does not need to be extreme.
Because no separation period is required, behaviour is commonly used where a divorce is needed before a year of separation has passed.
Read our detailed guide to unreasonable behaviour in Scottish divorce.
One year’s non-cohabitation with consent
Where you and your spouse have not cohabited at any time during a continuous period of one year immediately before the action is raised, and your spouse consents to decree, irretrievable breakdown is established. Consent is given in a prescribed form and may be withdrawn, so this fact depends on continuing co-operation.
Two years’ non-cohabitation
Where you and your spouse have not cohabited at any time during a continuous period of two years immediately before the action is raised, irretrievable breakdown is established without any need for consent.
Separation while sharing a home. Cohabitation means living together as spouses — the Act’s own test, expressed in its original wording as living together as man and wife, is whether the parties are in fact living together as spouses. It is possible in law to be separated while still under one roof, and in deciding the point the court looks at the reality of the arrangement as a whole. Matters such as separate rooms, separate finances and genuinely separate day-to-day lives may all be relevant circumstances, but none is a legal requirement in itself — the question is whether you were continuing to live together as spouses. This needs careful handling; take advice before relying on it.
Attempted reconciliation. Periods of resumed cohabitation not exceeding six months in total do not break the continuity of a separation period, but they do not count towards it either. A couple who separate, try again for three months and separate once more have not lost their accrued separation time — the clock was simply paused.
Which fact should you use?
Most Scottish divorces proceed on the separation facts. Where the relevant separation period has passed, many clients prefer to rely on a separation fact because it avoids the need to make and prove allegations of adultery or behaviour and may therefore be less contentious — which matters where children and financial negotiations are involved. Adultery itself does not ordinarily affect financial provision: financial claims are determined principally under the Family Law (Scotland) Act 1985, rather than by deciding who was responsible for the breakdown, and conduct is relevant only in the limited circumstances the legislation provides for. See our guide to separation and finances.
Our guide to separation in Scotland for married couples explains the separation periods and why the date of separation matters.
Grounds and procedure are different questions
The ground establishes why the court can grant decree. The procedure is how the action is dealt with, and it depends on your circumstances as a whole, not simply on which fact you choose.
The simplified (“do-it-yourself”) procedure may be available only where all applicable statutory and procedural conditions are met, including the following: the action proceeds on one of the separation facts or on the interim gender recognition certificate ground; there are no children of the marriage under 16; neither party is asking the court for financial provision; there is no indication that either party is unable to manage their affairs because of mental illness, personality disorder or learning disability; no other proceedings are under way which might end the marriage; the Scottish courts have jurisdiction; and, where the one-year fact is used, your spouse signs the form to consent. If the application is opposed, the simplified route is not available. Read our simplified divorce guide — £550 fixed fee.
Every other case — including all adultery and behaviour cases, and any case involving children under 16 or unresolved finances — proceeds as an ordinary action, almost always in the sheriff court. Read our ordinary divorce guide.
Even where an ordinary action is undefended, the court cannot grant decree until the ground is established by evidence, and that evidence must include evidence from someone other than the spouses — in practice, sworn affidavits including one from a third party. Simplified applications are exempted from the third-party requirement and proceed on the applicant’s own sworn application.
Civil partnerships
Dissolution of a civil partnership follows a closely similar framework, with one key difference: adultery is not available as a fact. See our guide to civil partnership dissolution in Scotland.
How Rooney Family Law can help
We practise Scottish family law exclusively. We advise clients throughout Scotland, with offices and consultation locations across central Scotland and appointments available by telephone or video. We offer a free initial telephone call of approximately 10–15 minutes to establish whether we can assist and explain the next steps — and we will tell you honestly which route fits your circumstances, whether that is a £550 fixed-fee simplified divorce or representation in a defended ordinary action. Speak to our divorce lawyers in Scotland.
Legal review: Brian Rooney, Managing Partner and Law Society of Scotland Accredited Specialist in Family Law. Last reviewed: July 2026.
Contact Our Divorce Team
Need expert legal advice on grounds for divorce in Scotland? Contact us immediately. We understand the emotional challenges divorce presents. Therefore, we provide compassionate support alongside expert legal guidance throughout the process.
As family law specialists, we understand the specific requirements for divorce grounds under Scots law. We help you navigate divorce proceedings with dignity and respect. Our priorities include protecting your interests while minimising conflict. In conclusion, proper legal guidance ensures smoother divorce proceedings regardless of which grounds you pursue.
Contact us today:
enquiries@rooneyfamilylaw.co.uk
0800 779 7848
Please note: Rooney Family Law does not offer Legal Aid. If you may qualify for Legal Aid, visit the Scottish Legal Aid Board website to check eligibility.
Common Questions About Grounds for Divorce
How many grounds for divorce are there in Scotland?
Two: irretrievable breakdown of the marriage, and the issue of an interim gender recognition certificate to either party after the date of the marriage. Irretrievable breakdown must be proved by one of four statutory facts — adultery, unreasonable behaviour, one year’s non-cohabitation with consent, or two years’ non-cohabitation without consent.
Is there no-fault divorce in Scotland?
Scotland has had no-fault routes since 1976 through the separation facts. Unlike England and Wales, Scotland did not adopt a joint-application model, so the one or two year separation period must pass before a separation-based divorce can proceed.
What is the quickest way to get divorced in Scotland?
If you meet all of the conditions for the simplified procedure, that is usually the most straightforward route. If a year of separation has not yet passed, an action founded on unreasonable behaviour can be raised at any time, but it must be supported by evidence.
Does adultery affect the financial settlement?
Adultery itself does not ordinarily affect financial provision on divorce. Financial claims are determined principally under the Family Law (Scotland) Act 1985, rather than by deciding who was responsible for the breakdown. Conduct is relevant only in the limited circumstances provided for by the legislation.
Can I rely on adultery if we kept living together afterwards?
Living together after discovering the adultery does not by itself prevent a divorce founded on it. But if cohabitation continues beyond three months from the point it continued or resumed with knowledge of the adultery, the adultery is treated as condoned and can no longer be relied upon.
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The grounds set out above apply throughout Scotland. For advice on how they are applied locally, speak to our Glasgow divorce solicitors or our Edinburgh divorce solicitors or our Stirling divorce solicitors.
Not Sure Which Ground Applies?
Tell us when you separated and what your circumstances are, and we will tell you which fact to found on, which procedure applies, and what it will cost. Free initial telephone call of approximately 10–15 minutes.
