What Is the Success Rate of an Immigration Judicial Review in the UK?

Key Points

• In Q1 2025, 4% of civil immigration judicial review applications lodged against the Home Office were granted permission to proceed to a final hearing, according to official government civil justice statistics. Earlier years show the general Administrative Court permission-grant rate ranging from 15% to 24%, depending on the period measured.
• Law Lane Solicitors has achieved significant success in judicial review cases, including R (on the application of London College of Business Management and Information) v Secretary of State for the Home Department [2015] EWHC 3215 (Admin) (7 July 2015),.
• Of the highly filtered minority of cases that proceed to a full substantive hearing, claimant success rates vary widely, often exceeding 50% in specific Administrative Court cohorts but dropping below 20% at final UTIAC substantive determinations, reflecting the distinct case mixes and pre-hearing settlement dynamics across the two jurisdictions.
• The permission stage is a genuine filter: a majority of cases are refused permission, though oral renewal of a refused permission decision offers a meaningful second opportunity.
• Between 50% and 70% of immigration judicial review disputes resolve at the pre-action protocol stage through withdrawal or voluntary reconsideration by the Home Office, outcomes that do not appear in formal court success statistics but represent genuine, positive results for claimants.
• Case preparation and specialist representation are the factors with the greatest bearing on individual prospects. A precisely pleaded claim with well-grounded evidence passes the permission stage at a materially higher rate than a broadly drafted one.

The success rate of an immigration judicial review in the UK cannot be reduced to a single figure. The answer depends on which stage of the process you are asking about, what counts as success, and how carefully the claim was prepared. The headline statistics provide useful context, but they mask significant differences between well-founded and speculative claims.

The most reliable data come from the Ministry of Justice’s quarterly civil justice statistics and the separate tribunal statistics from the UTIAC. Both publications show that immigration judicial review is an active and growing area of litigation, that the permission stage is a genuine filter, and that the outcomes at full hearing are broadly favourable to claimants in the cases that get that far. What the statistics cannot tell you is whether your specific claim will succeed. That assessment requires a qualified immigration solicitor to review the decision, the applicable law, and the documentary evidence.

Success Rates at the Permission Stage

Permission is the gateway to a full hearing. A judge reviews the application on the papers and decides whether the claim is arguable. In Q1 2025, , 4% of civil immigration judicial review applications lodged against the Home Office were granted permission to proceed to a final hearing, according to official government civil justice statistics. Earlier years show the general Administrative Court permission-grant rate ranging from 15% to 24%, depending on the period measured.

In the UTIAC, permission rates follow a similar pattern across a larger volume of claims. The UTIAC handles the majority of immigration and asylum judicial review cases, and in 2024/25, receipt volumes reached around 3,600 applications. The proportion granted permission reflects the quality of the case mix: claims with precisely identified legal errors, supported by clear documentary evidence, pass the filter at a higher rate than claims resting on general disagreement with the outcome.

Oral renewal, the second permission stage available where the paper refusal does not carry a TWM certificate, carries a meaningfully higher success rate than the papers stage. The self-selection effect explains part of that pattern: claimants who pursue renewal are those who consider their grounds genuinely arguable, and they frequently have specialist advocacy at the oral hearing. Cases that pass oral renewal then proceed to a substantive hearing.

Success Rates at the Full Hearing

Of the cases that reach a substantive hearing, the outcomes in recent years have been broadly favourable to claimants. Research by Tom Hickman and Maurice Sunkin found that, among the 2014 cohort of Administrative Court cases, 36% of final hearings were won by claimants, with a further 2.7% resulting in neither a clear win nor a loss. In contrast, UTIAC immigration and asylum judicial review cases decided at a final substantive hearing traditionally show a much lower uphold rate, frequently landing around 14% in favour of applicants, according to quarterly tribunal statistics. The variation between the two figures reflects differences in pre-hearing concession patterns and the categories of claims heard in each jurisdiction, rather than any difference in the legal standard applied. The cumulative success rate, measured from application to full hearing win, is lower than either of those figures taken in isolation. A claim must first pass the permission stage before it can succeed at a hearing, and not every permitted claim proceeds to a final judgment. Many are resolved at the post-permission stage through withdrawal of the Home Office’s decision or settlement. Those outcomes represent genuine success for the claimant but are not captured in formal hearing statistics.

Our firm has achieved significant success for our clients in judicial review hearings, including R (on the application of London College of Business Management and Information) v Secretary of State for the Home Department [2015] EWHC 3215 (Admin). In this case, The High Court allowed the claimant College’s judicial review application against the Secretary of State for the Home Department’s decision to revoke its Tier 4 sponsor licence. The College, established in 2005, had been granted a Tier 4 sponsor licence in 2009, which was reinstated in March 2013 after an earlier revocation was withdrawn. The Secretary of State revoked the licence by letter dated 5 January 2015, initially relying on multiple grounds including that 313 students had invalid Educational Testing Services (ETS) certificates and 126 had questionable certificates, an approved qualification issue, and concerns about the Principal’s impending prosecution.

By the hearing, the defendant abandoned all grounds except the invalid ETS certificates issue. The court found that the decision letter contained material factual errors, including wrongly stating that three students had not been withdrawn and that the College had provided no information regarding the 126 students with questionable certificates.

The court held that the decision letter failed adequately to engage with the College’s recruitment plan submitted on 22 October 2014, which proposed significant improvements including reducing Confirmation of Acceptance for Studies allocations by 50 per cent and increasing English language requirements.

The court concluded that, given the abandonment of numerous grounds and errors in the decision, it could not be said that the revocation decision would inevitably have been the same if based on all material considerations without factual errors. Permission was granted and the revocation decision was quashed.

Success Before the Hearing

In my experience, the most commonly overlooked positive outcome in immigration judicial review is the Home Office withdrawing its decision or agreeing to reconsider following a pre-action protocol letter or the grant of permission. According to the Public Law Project, between 50% and 70% of immigration judicial review disputes are resolved at the pre-action stage without proceedings being issued. A further significant proportion resolves following the grant of permission, when the Home Office assesses whether the original decision can be defended and concludes that it cannot.

The significance of that pattern is illustrated by R (Balajigari) v Secretary of State for the Home Department [2019] EWCA Civ 673. After the Court of Appeal held that the Home Office had acted unlawfully in making adverse dishonesty findings under paragraph 322(5) of the Immigration Rules without first allowing applicants to respond, many affected cases were resolved at the reconsideration stage rather than through further litigation. The judgment created a framework under which a large cohort of affected migrants achieved the ILR they had originally sought, without the cases proceeding to individual hearings.

The practical implication is that the success rate in immigration judicial review should be understood broadly. A case that settles following a well-drafted PAP letter is considered successful. A case where the Home Office makes a fresh, favourable decision after permission is granted is a successful case. Neither result appears in formal hearing statistics, but both represent the supervisory jurisdiction working as Parliament and the courts intend.

What Affects Individual Prospects

Several factors bear directly on whether a particular claim is likely to succeed.

• The quality of the grounds: grounds that identify a specific legal error with precision pass the permission stage at a higher rate than grounds amounting to general disagreement with the outcome.
• The strength of the documentary record: where evidence clearly contradicts the Home Office’s factual findings, the claim is materially stronger than one that turns on disputed facts.
• The category of decision challenged: refusals based on an incorrectly applied policy, or where procedural fairness was plainly not observed, have a stronger track record than challenges to wide discretionary decisions where the decision-maker had a broad margin of appreciation.
• Specialist representation: claims prepared and argued by experienced immigration solicitors consistently achieve better outcomes at both the permission and substantive hearing stages.
• Timeliness: claims filed promptly with a complete bundle and a well-drafted PAP letter create the best conditions for early resolution.

Trends in the Data

UTIAC immigration judicial review receipts rose sharply in 2024/25. Disposals increased at a comparable pace, reflecting the Tribunal’s efforts to work through existing backlogs while managing incoming volume. The traditional 14% uphold rate at final substantive hearings is consistent with a highly filtered, contested case mix rather than any shift in the strict public law standards applied by the Tribunal.

The Illegal Migration Act 2023 introduced provisions intended to constrain certain categories of challenge in the context of removal. The courts have maintained that the supervisory jurisdiction over Home Office decision-making is unaffected by those statutory changes. However, the precise interaction between the 2023 Act’s detention framework and the classical Hardial Singh principles remains a live area of litigation.

For a frank assessment of your prospects, contact Law Lane Solicitors’ immigration law team. We advise on the strength of judicial review grounds before any proceedings are issued, so you can make an informed decision about whether and how to proceed.

This article does not constitute legal advice.

Author – Ghulam Mustafa

Ghulam Mustafa is a co-founding Director and Deputy Managing Director at Law Lane Solicitors. A dual-capacity Barrister regulated by the Bar Standards Board (BSB ID: B657E4998C050554521F2CF085E3D0C9) and authorised to appear in all courts in England and Wales, he also holds non-practising solicitor status (SRA ID: 568972). Ghulam leads the firm’s Immigration & Asylum department and is Law Society-accredited as a Supervising Senior Case Worker. His practice spans immigration, asylum, human rights, judicial reviews, family law, and criminal defence. Having practised law in the UK since 2005, he brings two decades of legal experience to every client matter.

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