When a sponsored worker's visa application is refused, most HR platforms flag it as a terminal state and hand it to the employee's solicitor. That's the right escalation, but it creates a blind spot: the compliance system loses visibility during the appeal period, which can be 6–18 months, and the worker's right to remain — and right to work — may continue or lapse depending on which appeal route was taken and when.
Modelling the appeal period correctly matters because the states aren't equivalent and the downstream effects on right-to-work checks, payroll, and sponsor duties are different for each.
Two routes, two different data models
There are two distinct challenge mechanisms in UK immigration:
Administrative review is an internal Home Office check. The applicant argues that a caseworking error occurred — a document was overlooked, a calculation was wrong, an evidential requirement was misapplied. No judge is involved. The Home Office reviews its own decision. Administrative review does not extend section 3C leave (the statutory right to remain while an in-country application is being decided). Once it fails, the applicant's leave — if any — ends on the original date.
First-tier Tribunal appeal goes to the Immigration and Asylum Chamber. A judge hears it. The applicant can present new evidence, argue legal grounds including human rights (Article 8), and challenge the proportionality of the decision, not just its procedural correctness. Crucially for HR systems: lodging a tribunal appeal from inside the UK does extend section 3C leave. The worker's leave continues until the appeal is determined or withdrawn.
These two paths produce different leave states for the sponsored worker, different right-to-work check obligations for the employer, and different sponsor reporting duties under SMS.
Deadline logic
The deadline model is the first place compliance systems tend to break:
- Administrative review (in-country): 14 days from service of the refusal decision
- Tribunal appeal (in-country): 14 days from service (28 days if in detention)
- Administrative review (out-of-country): 28 days from service
- Tribunal appeal (out-of-country): 28 days from service
Service date is not receipt date. If the decision was served to a UK address while the applicant is overseas, the 28-day clock still runs from the service date on the document, not from when the applicant physically reads it.
Any compliance system that calculates challenge windows from the date the employee notified HR has the wrong anchor. The anchor is the decision service date on the refusal letter.
Which route applies to which visa type
This is where the logic tree gets complicated:
- Skilled Worker refusal (non-human rights grounds): administrative review only in most cases
- Skilled Worker refusal (human rights grounds raised): tribunal appeal may be available
- Spouse / family visa refusal: tribunal appeal, often on Article 8 grounds
- Student visa refusal: administrative review for most PBS routes
- Refusals where no appeal or review right exists: increasingly common for PBS applications refused for non-compliance with the Rules rather than caseworker error
The presence or absence of an appeal right is determined by the Immigration (Leave to Enter and Remain) Order 2000 and the Nationality, Immigration and Asylum Act 2002 as amended. A compliance system that assumes every refusal generates an appeal right will misclassify a meaningful proportion of cases.
Right-to-work implications during appeal
Section 3C leave applies only to in-country applications and only when the appeal is lodged before the original leave expires. If the worker's leave expires before the appeal is lodged — even by one day — section 3C does not apply and the worker no longer has leave to remain.
For right-to-work purposes, a worker in the appeal period with active section 3C leave can still work. The employer must hold a Positive Verification Notice from the Home Office Employer Checking Service — a share code check alone is not sufficient during this period.
HR systems that rely solely on share code verification will miss the ECS step and may generate a false positive on right-to-work compliance.
Success rate context
Roughly 40% of First-tier Tribunal immigration appeals are allowed. The breakdown by route matters: human rights appeals (Article 8 family life) run materially higher than Points-Based System appeals, where the binary rules leave less room for proportionality arguments.
Administrative review outcomes are not published systematically, but the Home Office's own transparency data has historically shown review success rates well below 20% for Points-Based System cases.
What to build into case tracking
A minimal appeal-period data model needs:
- Challenge type (admin review / tribunal / none available)
- Submission date (to validate deadline compliance)
- Decision service date from refusal letter (the deadline anchor)
- Section 3C leave flag (boolean, with expiry logic tied to submission timing)
- ECS verification requirement flag (triggered when section 3C is active)
- Appeal outcome and date (to trigger downstream leave recalculation)
Without these fields, a compliance system cannot correctly determine the worker's leave status, the employer's right-to-work obligations, or whether the sponsor has a reporting duty under the sponsor guidance.
For a plain-language breakdown of how appeal routes apply to specific visa categories, immigrationgpt.co.uk covers the current rules and route logic based on official Home Office guidance.
For compliance-critical decisions, always confirm against the current Immigration Rules and Sponsor Guidance, which are updated without notice.
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