United Kingdom — immigration · immigration

How to Prove Insurmountable Obstacles Under Appendix FM in the UK

If you cannot meet the standard partner visa requirements in the United Kingdom, demonstrating 'insurmountable obstacles' under Appendix FM is often your primary route to remain with your partner. The UK Home Office enforces a stringent threshold under paragraph EX.1.(b) and EX.2, demanding proof of literal impossibility or very serious hardship. Understanding the legal test established by landmark UK rulings such as Agyarko and Lal enables you to build an evidence-backed application rather than relying on personal preference.

The Legal Threshold: Paragraphs EX.1.(b) and EX.2 in the United Kingdom

In the United Kingdom, an applicant seeking leave to remain as a partner under Appendix FM of the Immigration Rules who cannot meet standard eligibility criteria—such as immigration status, minimum income, or English language requirements—must satisfy paragraph EX.1.(b). This provision requires you to prove that you have a genuine and subsisting relationship with a British citizen, settled person, or someone with refugee status, and that there are 'insurmountable obstacles' to your family life continuing together outside the UK.

Paragraph EX.2 strictly defines insurmountable obstacles as 'very significant difficulties which would be faced by the applicant or their partner in continuing their family life together outside the UK and which could not be overcome or would entail very serious hardship for the applicant or their partner.' In R (on the application of Agyarko) v Secretary of State for the Home Department [2017] UKSC 11, the UK Supreme Court affirmed that this is a high, objective test. Hardships such as reduced economic prospects, leaving extended family, or general differences in living conditions between the UK and origin countries like India, Nigeria, Pakistan, or Ghana do not meet this threshold.

The Court of Appeal in Lal v SSHD [2019] EWCA Civ 1925 clarified the application of EX.2 as a two-stage inquiry: first, whether there is a barrier that makes continuing family life abroad literally impossible (such as a legal bar preventing the British partner from entering or residing in the country of return); second, if relocation is possible, whether overcoming the difficulties would cause very serious hardship to either partner. Subjective reluctance or personal refusal by the British partner to leave the UK is insufficient on its own.

What Qualifies as an Insurmountable Obstacle in Practice

Home Office caseworkers assess applications against objective country conditions, legal barriers, and documented vulnerabilities. A primary category under the 'impossibility' limb involves legal prohibitions: if the foreign country's laws prevent your UK partner from acquiring a visa, lawful residence, or the legal right to work (or if the country is undergoing active conflict where consular assistance is impossible), family life cannot lawfully continue there.

Medical grounds may satisfy the test, but the threshold is exceptionally demanding. You must show that one partner has a severe physical or mental health condition requiring specific treatment, medication, or social support that is entirely unavailable, inaccessible, or unaffordable in the country of origin, and that relocation would lead to catastrophic deterioration. General assertions about lesser healthcare standards will result in refusal.

Serious societal discrimination or persecution also forms a viable basis under Article 8 of the European Convention on Human Rights (ECHR). For example, if you and your partner are in a same-sex relationship and the proposed country of return criminalises LGBTQ+ relationships or fails to protect couples from targeted violence, insurmountable obstacles are generally established. Similarly, severe cultural ostracisation, loss of state protection, or inability to access basic survival needs can establish very serious hardship.

Preparing Your FLR(FP) Application and Next Steps

In-country partner applications relying on insurmountable obstacles are made online using Form FLR(FP) (Further Leave to Remain - Family and Private Life) on the Gov.uk portal. If paying the mandatory application fees and the Immigration Health Surcharge (IHS) would render you destitute, you must submit an online Fee Waiver request before submitting the main FLR(FP) application. A pending or granted fee waiver safeguards your ability to apply without paying thousands of pounds upfront.

Every claim must be substantiated with independent, objective documentation. Witness statements written by you and your partner must be corroborated by specialist medical reports, foreign immigration statutes, or Country Expert Reports detailing local legal and societal conditions. Submitting unevidenced statements is the leading cause of immediate Home Office refusals.

This guide provides legal information, not formal legal advice; Caunsel is not a law firm and does not file immigration applications on your behalf. You can use Caunsel to research Appendix FM rules, organize and store your documentary evidence in a case file, or connect with an independent, regulated UK immigration solicitor or OISC adviser to evaluate your arguments before you apply.

Steps

• Audit your circumstances against paragraph EX.2 to pinpoint whether your claim relies on literal impossibility (e.g., legal bars on foreign residence) or very serious hardship (e.g., severe lack of vital medical care or state persecution).
• Obtain independent third-party evidence, including Country Expert Reports, letters from UK medical consultants detailing treatment consequences, and certified translations of foreign immigration statutes.
• Submit an online Home Office Fee Waiver request via Gov.uk if you cannot afford the visa fee and Immigration Health Surcharge before your current leave expires.
• Complete and submit Form FLR(FP) on the Gov.uk portal, setting out full legal representations under paragraph EX.1.(b) of Appendix FM and Article 8 of the ECHR.
• Attend your biometric appointment with UKVCAS and track your submission to ensure your rights under Section 3C of the Immigration Act 1971 remain intact if applying before visa expiry.

Common mistakes

• Relying on economic disparity: Arguing that wages, employment prospects, or standard of living are lower in your home country, which UK courts routinely dismiss as normal relocation hardship.
• Submitting partner statements without objective corroboration: Stating that a British partner 'cannot cope' without submitting psychiatric evaluations, medical reports, or expert evidence proving severe hardship.
• Failing to investigate the UK partner's legal right of entry: Assuming the Home Office knows the partner cannot relocate abroad without providing foreign statutory provisions proving a visa or residence is legally impossible.
• Applying on the wrong form: Submitting Form FLR(M) instead of Form FLR(FP) when relying on human rights exceptions under EX.1, leading to procedural delays or refusals.

Questions people ask

Can my British partner simply refuse to leave the UK to prove an insurmountable obstacle?

No. Under Lal v SSHD [2019] EWCA Civ 1925, the test is an objective one. A British partner's subjective refusal, reluctance to leave their employment, or personal preference to remain in the UK does not satisfy the insurmountable obstacles test without objective evidence that relocation would cause very serious hardship.

What happens if my insurmountable obstacles application is refused by the Home Office?

Because an Appendix FM application relying on EX.1.(b) constitutes a human rights claim under Article 8 ECHR, a refusal generally carries a statutory right of appeal to the First-tier Tribunal (Immigration and Asylum Chamber), provided the Home Office does not certify the claim as clearly unfounded.

Does having a child together satisfy the insurmountable obstacles requirement?

If you have a child who is a British citizen or who has lived in the UK for at least seven continuous years, your case is assessed under paragraph EX.1.(a) rather than EX.1.(b). The legal question shifts from 'insurmountable obstacles' to whether it would be 'unreasonable' to expect that child to leave the UK.

General information only, last updated 2026-10-19. Caunsel is not a law firm and does not practise law. AI answers and this guide are not legal advice. Verify filings, deadlines, and statutes with a licensed lawyer in United Kingdom — immigration.