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Understanding the evidence on mediation outcomes can help you make an informed decision about whether to try it. This guide sets out what the research shows, what affects success rates, and what happens when mediation does not produce full agreement.
Key points
- Around 70% of couples who complete mediation reach full or partial agreement — based on Family Mediation Council and Ministry of Justice research.
- The success rate is significantly higher where both parties engage consistently from the start.
- Partial agreements — resolving some but not all issues — are common and still reduce the scope and cost of any court proceedings.
- Cases where mediation fails most commonly break down because one party disengages, not because the issues are irresolvable.
- Mediation is substantially faster and cheaper than contested court proceedings — even in cases that do not reach full agreement.
- Courts increasingly expect parties to have genuinely attempted mediation before litigating.
For a full overview of how family mediation works, see our complete guide
What the Evidence Shows
Research published by the Family Mediation Council and the Ministry of Justice consistently shows that around 70% of couples who complete family mediation reach a full or partial agreement. This figure has remained broadly stable over successive years of data collection.
The Ministry of Justice's evaluation of the Family Mediation Voucher Scheme — published in 2022 — found that 69% of cases where both parties attended joint sessions reached full or partial agreement. Rates were higher for child-only cases and somewhat lower for cases involving complex financial arrangements.
It is important to note that the 70% figure relates to cases where both parties attended and engaged with the process. Cases where one party refused to attend, or attended in bad faith, have a substantially lower resolution rate — which is why engagement is the single most important factor in success.
Source
Family Mediation Council annual data. Ministry of Justice evaluation of the Family Mediation Voucher Scheme, 2022. Ministry of Justice research on family dispute resolution.
What Affects the Success Rate?
Mediation outcomes are not random. The factors most reliably associated with successful resolution are:
Factors that increase the likelihood of agreement
- Both parties attending willingly rather than under obvious compulsion.
- Both parties engaging honestly with financial disclosure where finances are in issue.
- A shared interest in minimising harm to children or to the ongoing co-parenting relationship.
- Realistic expectations — both parties having received independent legal advice so they understand what a court might actually award.
- Consistent attendance — cases that lose momentum between sessions are harder to complete.
- A skilled mediator who manages the dynamic of sessions effectively.
Factors that reduce the likelihood of agreement
- One party attending only to appear cooperative, with no genuine intention of resolving.
- Significant power imbalance or ongoing coercive dynamics from the relationship.
- Refusal to disclose financial information honestly.
- Highly complex financial matters requiring specialist input that has not been obtained before sessions begin.
- Cases where one party is primarily motivated by punishing the other rather than reaching a workable resolution.
What Counts as a Successful Outcome?
It is worth being precise about what 'success' means in the context of mediation. Full agreement — resolving every issue through mediation — is the ideal outcome. But partial agreement is also a genuinely valuable result.
A couple who cannot agree on where their children will live, but do reach agreement on holiday arrangements, contact schedules, and financial matters, has used mediation to resolve the majority of their issues. The court needs to decide only the remaining question — at significantly less time and cost than a fully contested case.
Even a failed mediation — where no agreement is reached at all — produces two benefits: both parties have FM1 certificates for their court applications, and both have a clearer sense of their respective positions and where the irreconcilable differences actually lie. This often shortens court proceedings even where mediation produced no direct agreement.
How Does Mediation Compare to Going to Court?
The comparison between mediation and contested court proceedings is stark on almost every measure:
Mediation vs court — key comparisons
- Cost: mediation typically costs £800–£2,500 per party for a full process. Contested court proceedings regularly cost £10,000–£50,000 or more per party.
- Time: mediation typically resolves in two to four months. Contested court proceedings for financial matters take 18 months to three years in many cases.
- Control: in mediation, both parties shape the outcome. In court, a judge decides.
- Privacy: mediation is entirely private. Court proceedings can become part of the public record.
- Relationship: mediation preserves the co-parenting relationship to the extent possible. Contested litigation typically damages it further.
- Children: outcomes negotiated by parents with a mediator tend to reflect the children's actual circumstances better than orders imposed by a judge who has heard limited evidence.
When Mediation Does Not Work
Around 30% of mediation cases that are genuinely attempted do not produce full agreement. This does not mean mediation has failed in all cases — partial agreements are common — but some cases do reach a genuine impasse.
The most common reasons are: one party disengaging or attending in bad faith; a power imbalance that makes genuine negotiation impossible; hidden or complex assets that cannot be addressed within the mediation process; and cases where the relationship is too damaged for any productive communication, even with mediator support.
In these cases, court proceedings are the appropriate next step. The court is aware that mediation was attempted, which is viewed positively. And any partial agreement reached in mediation can be incorporated into the court proceedings to narrow what remains in dispute.
Related Questions
What is the success rate of family mediation in the UK?
Research from the Family Mediation Council and the Ministry of Justice suggests that around 70 per cent of couples who complete mediation reach a full or partial agreement. The success rate is higher where both parties engage consistently from the start. Cases that break down often do so because one party disengages early.
Why does family mediation sometimes fail?
The most common reasons are: one party refusing to engage or attend sessions; significant distrust that makes negotiation unworkable; hidden or disputed assets in financial cases; and active safeguarding concerns about children. In these cases, court proceedings are usually the appropriate next step.
Next Steps: The Evidence Supports Trying Mediation First
The research is clear: for separating couples in England and Wales, attempting mediation before court is almost always worth trying. The majority of cases that are genuinely attempted reach at least partial agreement. Even those that don't produce faster, cheaper court proceedings.
The starting point is a MIAM — a short individual meeting with an accredited mediator to assess whether mediation is appropriate for your situation. It commits you to nothing beyond the meeting.
Many people who feel certain mediation cannot work for them find the MIAM itself changes their perspective on the options available.
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When you're ready
The evidence supports trying mediation first. A MIAM is the starting point — a short, private meeting with an accredited mediator to assess your options.
Book a MIAM onlineDelivered by qualified family mediators in line with UK mediation standards.
Many people begin mediation by learning, not deciding.
Understanding your options can be a helpful first step.
What to do next
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A practical guide to deciding whether mediation is realistic for your situation.
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The situations where a different route is more appropriate.
Read moreCost of Family Mediation
A breakdown of typical costs and what financial help is available.
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