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Pre-Action Protocol for Judicial Review: PAP Letters, Costs & Success Rate

A Pre-Action Protocol Letter, or PAP, is an important legal letter sent to the Home Office to attempt to resolve a dispute before any court proceedings or court action begins.

Before seeking judicial review, you should follow the steps outlined in the pre-action protocol.

Our immigration lawyers can support your judicial review case, get in touch today on +44 (0)333 414 9244 for more information about our judicial review services.

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    What to expect from our Pre-Action Protocol (PAP) Services

    • One-to-one support and advice through the entire process

    • A dedicated, fully qualified immigration caseworker assigned to your case

    • Comprehensive reviews and investigations into the decision timeline to help construct your case

    • A bespoke pre-action protocol letter that addresses and meets all Civil Procedure Rule guidelines

    • Collation and assessment of all documents from your case and from the Home Office

    • Full legal representation if the case proceeds to a judicial review

    Take the first step towards success today. Reach out to us for more information on what we can do for you.

    Why Choose IAS for Your Pre-Action Protocol?

    By choosing IAS to assist you with your pre-action protocol process, you can be confident of receiving the most expert and professional legal support for your dispute resolution.

    It is highly recommended to seek professional legal assistance if embarking on a judicial review of your immigration case against the Home Office.

    IAS’ immigration lawyers can guide you through the judicial review and pre-action protocol process, ensuring clear, transparent and supportive advice throughout. We will help to explore all potential avenues to a fair and equal resolution, including drafting a strong and comprehensive pre-action protocol letter that will convey all necessary information to get the result you need.

    Should the case proceed to judicial review or you need to instigate a review urgently, we will provide full legal representation on your behalf to ensure that your case against the Home Office’s decision is heard fairly.

    Get in touch with us today for more information about how we can help with your case.

    Our advisers are on hand to help you with your pre-action protocol or judicial review case.

    What is the Pre-Action Protocol (PAP) for Judicial Review?

    Before making a claim for judicial review, it is important that you follow the rules for pre-action conduct. This refers to the actions that you should take before you make your claim. 

    The Pre-Action Protocol, which is contained in the Civil Procedure Rules, lays out a code of best practice and the steps that you should follow prior to seeking judicial review.

    The pre-action protocol has 5 aims, including:

    • To understand and identify the issues you are disputing in your claim and to share information and relevant documents
    • To make informed decisions about whether to proceed and how to do this
    • To attempt to settle the dispute without legal proceedings or to reduce the issues you are disputing
    • To keep down the cost of resolving your dispute by avoiding unnecessary expenses
    • To support the efficient management of proceedings where legal action cannot be avoided

    If you fail to follow the steps outlined in the pre-action protocol then this will be taken into account during the Upper Tribunal hearing that may follow.

    If you lose your case you may be ordered to pay additional costs for not following the pre-action protocol. If you win your case and you are awarded costs then this amount may be reduced because you have not followed pre-action protocol. There are also other sanctions that could come as a result of your failure to comply with the protocol.

    What is a Judicial Review?

    Judicial review is a procedure that can be used to challenge the lawfulness of an act, decision or failure to act of a public body that is exercising a public function.

    In the field of immigration law, judicial review refers to the process of legally challenging the way that a decision has been made in your immigration, asylum or human rights-based application. Usually, judicial review is used in immigration cases to challenge a decision that has been made by the Home Office, although it can also be used to challenge a decision made by the First-Tier Tribunal. Most asylum and immigration judicial reviews in England and Wales are heard in the Upper Tribunal; however, in Scotland, they are heard in the Outer House of the Court of Session and in Northern Ireland, they are heard at the High Court in Belfast.

    Judicial review is different from an appeal or administrative review as it does not determine whether the decision on your case is right or wrong, but rather how the decision was reached and whether that process was lawful.

    The judicial review procedure is complex and it is important that you follow pre-action conduct correctly before you seek permission for judicial review. Below are the steps outlined under the pre-action protocol.

    Field House Upper Tribunal in London

    Alternative Dispute Resolution (ADR) Before Judicial Review

    According to the pre-action protocol, judicial review should only be used as a last resort when there is no alternative remedy. This is why the first step set out in the pre-action protocol is to try to find an alternative dispute resolution (ADR).

    Both claimants and defendants could be asked by the court to provide evidence that they have attempted alternative ways of resolving disputes.

    The pre-action protocol does not outline all of the methods that may be used when attempting to find an ADR but it does offer some guidance on options that may be appropriate if applicable to the circumstances. These include:

    • Discussion and negotiation
    • Using internal public authority complaints or review procedures
    • An ombudsman
    • Mediation

    It’s important to note that an application for judicial review should be started no later than 3 months after the grounds for a claim first arose and that exploring alternative dispute resolutions cannot be used as an excuse for failure to meet this time limit.

    What is a Pre-Action Protocol (PAP) Letter?

    A Pre-Action Protocol (PAP) letter, also called a letter before claim, is a formal letter sent to the Home Office setting out why a decision is unlawful, before a claimant applies for judicial review. Under the Civil Procedure Rules’ Pre-Action Protocol for Judicial Review, the Home Office must normally respond within 14 days.

    The objectives of the pre-action protocol letter are to:

    • understand each other’s position
    • try to settle the issues without court proceedings that have more legal costs
    • support the efficient management of proceedings and practice direction where litigation cannot be avoided
    • reduce costs for all parties in resolving the dispute

    Under the Civil Procedure Rules’ Pre-Action Protocol for Judicial Review, the Home Office must usually respond within 14 days, confirming whether it concedes, partly concedes, or rejects the claim.

    The Pre-Action Protocol Letter contains the key matters that would be raised in legal proceedings. It sets out all the legal grounds and shows how the action was unlawful.

    It is also sometimes referred to as a ‘letter before claim’ or ‘letter before action’. It is typically used if you want to challenge a visa refusal.

    When Can I Send a PAP Letter for a UK Visa Refusal?

    You are allowed to challenge the unlawfulness of a UK visa refusal using a Pre-Action Protocol Letter against the Home Office in the following circumstances:

    • The refusal does not confirm your rights to be able to appeal this decision or ask for an Administrative Review of the refusal of your immigration application.
    • Your Administrative Review against the refusal of your immigration application has not been successful and you do not have the right to be able to appeal against this refusal.
    • Your request for a re-evaluation of the refusal of applying for British citizenship by naturalisation (form AN) has not been successful.
    • The Home Office has been unable to make a decision on your UK visa within a sufficient timeframe. This delay in the application being processed can be challenged using a Pre-Action Protocol Letter and further Judicial Review.

    Requesting Information and Documents at the Pre-Action Stage

    The next part of the pre-action protocol covers your right to request information and documents prior to the judicial review. It states that claimants can request that the defendant provides them with information and documents for the purpose of being able to gain understanding as to why the decision they are challenging was taken or to be able to identify the issues that they are making a complaint about.

    Any requests for information must be proportionate and only for the purposes outlined above. The defendant must comply with requests for information providing that they meet these requirements unless there is a good reason for not doing so.

    If the defendant fails to provide relevant information or documents then the court may impose cost sanctions against them.

    How to Send a Pre-Action Protocol Letter to the Home Office

    The next pre-action conduct that you will need to perform is to send a letter to the defendant. This letter, known as the letter before the claim or the letter of claim, should be sent in good time before making a claim and must identify the dispute so that it can be established whether taking legal action can be avoided.

    For immigration, nationality and asylum cases there is an official proforma you can complete instead of writing your own letter of claim to the Home Office. The form will ask you to provide the following:

    • Information about yourself including your name, date of birth etc.
    • Information about your legal representative
    • Your case reference numbers
    • The type of claim you are making
    • Information about the substance of your claim including the matter of the challenge, the issue and the action you would like the Home Office to take
    • Details of any information or documents you are requesting from the Home Office
    • Details of alternative dispute resolution proposals you have
    • Your proposed reply date. You should usually give 14 days for this

    You are not required to use the Home Office’s standardised form and you can instead send your own letter of claim to the Home Office. It is highly recommended that you seek the assistance of an immigration professional with your letter of claim as the letter must provide all of the information outlined in the pre-action protocol.

    Why Is a Pre-Action Protocol Letter Important?

    If a client and their legal advisor do not send a letter of a written agreement before action, this may affect the court’s decision on who should have to pay the costs. The judge will expect both parties to have followed the procedure before filing their appeals for review in the first instance. Failure to comply with these procedures will have consequences.

    It is also important because if alternatives to court action have not been tried, the court may decide that court action was unnecessary and a waste of the court’s and the other party’s time and resources.

    The overall purpose of a Pre-Action Protocol Letter is for the party or individual bringing the judicial review to set out their case against the Respondent, the Secretary of State for the Home Department (the Home Office). This means that the Respondent can consider your case before any commencing proceedings.

    Writing a well-formulated pre-action protocol letter may increase the chances of the matter being resolved earlier, saving time and money. A well-drafted, specific and proportionate ‘letter before claim’ that bases its arguments on solid legal grounds will decidedly be more effective in eliciting an appropriate response from the Home Office and have much more credibility in the eyes of the law.

    In the R (Shajna Begum) v Entry Clearance Officer case (JR-2024-LON-003343) where the Home Office refused a visitor visa multiple times, the Upper Tribunal judge noted that the concerned caseworker(s) just issued repetitive, formulaic refusals completely overlooking the applicant’s detailed explanations shared in their PAP letters, and that this failure amounted to a public law error. This example fairly illustrates how a strong PAP letter can go a long way to overturn a visa refusal decision.

    Does the Pre-Action Protocol Letter Affect My Lodging a Judicial Review Claim?

    The pre-action protocol does not in any way affect the time limit for lodging a judicial review claim. The time limit begins from the date of the decision you wish to challenge regardless of whether or not you have engaged in the pre-action protocol.

    Home Office Response to a PAP Letter: What Happens Next

    Under paragraph 20 of the Pre-Action Protocol for Judicial Review, the Home Office should normally respond within 14 days of the letter before claim. If they fail to do this, this will be taken into account and sanctions could be imposed unless there are good reasons for them not issuing a response in time.

    The letter of response should state whether they have conceded, conceded in part or denied your claim.

    If the Home Office cannot reply within the proposed response time then they should give an interim response and should propose an extension on this time, give a date for their response and outline why they require an extension.

    If the Home Office fails to respond to you within the 14 days, or if you are not satisfied with the response that they give you then you can seek a judicial review by submitting an application to the Upper Tribunal (Immigration and Asylum) Chamber.

    close up of two people using clipboards and legal books

    Urgent Cases: When You Can Skip the Pre-Action Protocol

    It is not necessary to follow the pre-action protocol in urgent cases. If your case is urgent then you should make your claim for judicial review immediately. Urgent cases can include:

    • If the claimant is facing removal from the UK
    • If there is an urgent need for an interim order to force a public body to act where it has refused to do so in an unlawful way
    • If a local housing authority has failed to secure interim accommodation for a claimant who is homeless

    Despite the fact that urgent cases are not obliged to follow the pre-action conduct outlined in the protocol you will still be expected to notify the defendant prior to starting court action. You can do this by altering the defendant by telephone and emailing or faxing a draft of the claim form that you intend to use.

    Get in touch with our expert immigration lawyers to receive assistance with pre-action protocols.

    How Can IAS Help with your Judicial Review?

    When it comes to immigration issues surrounding judicial review it is highly recommended that you see the assistance of a legal expert. What Shajna Begum’s visitor visa refusal case shows is that understanding the nuances involved in both the pre-action protocol and judicial review demand a strong grasp of the UK legal system.

    This is definitely not a journey you should take alone. Acting without proper advice or trying to navigate the complex web of immigration law all by yourself can quickly turn into a disastrous affair.

    No matter how complex your situation is, IAS can help you. Our immigration lawyers are experts in judicial review issues and due to their extensive immigration training our team will be able to help you even if you have a very complex case.

    Our lawyers can explain the pre-action protocol process and will ensure your compliance with the protocol and all of its necessary steps. Just a few of the ways that we can assist you include:

    • Answering any questions you may have about pre-action protocols
    • Helping you to request information and documents from the Home Office
    • Preparing and sending your letter of claim for you
    • Liaising with the Home Office on your behalf to find out whether there are other ways that the dispute can be resolved
    • Preparing your application for judicial review permission if litigation is unavoidable

    If you think your case may be urgent then our lawyers can also advise you about whether the protocol applies to your case.

    For more information about how we can help you with pre-action protocols, contact us today on +44 (0)333 414 9244.

    We offer immigration advice sessions as face to face appointments at all of our UK offices, or via the phone.

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    Frequently Asked Questions

    According to Ministry of Justice Tribunal Statistics for October to December 2025, only 13% of Upper Tribunal immigration judicial review applications cleared the permission stage to reach a full hearing — but 63% of the cases that did reach a hearing were decided in the applicant’s favour. A well-drafted Pre-Action Protocol letter is what determines whether a case survives that first filter.

    A well-drafted Pre-Action Protocol letter is what gets a claim past this first filter, since around 40% of cases are withdrawn or resolved before a judge even rules on permission

    The success rate of action protocols will also vary greatly based on the individual case and the unique circumstances involved. The outcome really depends on the reasoning behind why your immigration application was refused.

    The court will expect parties to have complied with the pre-action protocol for judicial review, if either the defendant or claimant has failed to do so then this will be taken into consideration and sanctions may be imposed at a later stage in the proceedings.

    The pre-action protocol does not in any way affect the time limit for lodging a judicial review claim. The time limit begins from the date of the decision you wish to challenge regardless of whether or not you have engaged in the pre-action protocol.

    Yes, writing a well-formulated pre-action protocol letter may increase the chances of the matter being resolved earlier, saving you time and money.

    The Home Office should usually respond within 14 days, confirming whether it concedes, partly concedes, or rejects the claim. If it fails to respond in time or you’re not satisfied with the response, you can proceed to lodge a judicial review application.

    No. A PAP letter is a pre-court step asking the Home Office to reconsider before judicial review proceedings begin; it doesn’t determine whether the original decision was right or wrong. An appeal, by contrast, is a formal challenge heard by a tribunal that can re-examine the merits of the decision itself — and it’s only available where the refusal carries a statutory right of appeal.

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