Last reviewed: 18 October 2026
Section 3C leave can extend your existing UK immigration permission when you make a qualifying application before it expires and are still waiting for a decision when that permission ends.
It operates automatically when the legal conditions are met. It is not a separate visa application.
Is Your UK Visa Expiring?
Our UK office can review your extension plans, application timing and immigration history.
WhatsApp Our UK OfficePlease tell us your current visa type, expiry date and whether you have already submitted an application.
When Does Section 3C Apply?
The core conditions are that you have limited permission, apply to extend or vary it before expiry, and that permission expires while the application remains undecided.
Section 3C can also continue during certain appeal or administrative review periods. The precise position depends on the decision and available rights.
Example: A Spouse Visa Extension
Suppose your spouse permission expires on 20 November. You submit a valid extension application on 10 November, but it remains undecided when your permission expires.
Section 3C can extend your existing permission while the application is pending. The example assumes the application meets the relevant validity requirements and nothing occurs to end that protection.
See our UK spouse and partner extension guide for help preparing an application.
Can You Keep Working?
Your existing immigration conditions normally continue unless varied. If work was permitted, it can normally continue within the same restrictions. Section 3C does not create a new right to work where none existed.
For example, someone awaiting a decision after fiancée permission cannot assume marriage or submission of the next application allows employment.
How Can an Employer Check?
If normal online or document checks cannot establish your right to work, your employer may need the Home Office Employer Checking Service.
This service covers situations involving outstanding applications, appeals or reviews, as well as certain technical problems with online status checks.
We recommend keeping your application reference and submission confirmation available for any necessary check.
Application Timing and Validity
| Situation | Main point |
|---|---|
| Valid application submitted before expiry | Can engage section 3C if existing permission expires before a decision. |
| Application submitted after expiry | Does not create section 3C leave. |
| Application rejected as invalid | Do not assume submission protected your status. The validity history requires assessment. |
| Application draft or saved form | Do not treat preparation alone as submission. |
Validation rules can allow some defects to be corrected. Respond promptly to Home Office requests and keep the notices: the effect can depend on the defect, correction and timing.
We recommend checking the submission record, payment arrangements and biometric instructions together rather than relying on an appointment booking alone.
Can You Travel While on Section 3C Leave?
Section 3C leave lapses when you leave the UK.
Separately, travelling outside the Common Travel Area normally causes a pending permission-to-stay application to be treated as withdrawn. The Common Travel Area includes the UK, Ireland, the Channel Islands and the Isle of Man.
These are different rules. A journey to Ireland, for example, is still a departure from the UK. Obtain advice before booking travel while relying on section 3C.
What Happens After a Refusal?
A refusal does not always end section 3C immediately. Protection may continue during a qualifying in-country appeal or administrative review period and while a qualifying challenge is pending.
Do not assume every challenge, complaint or reconsideration request preserves leave. Check the decision notice and applicable deadlines promptly.
Can You Withdraw or Change Your Application?
Withdrawal can end section 3C protection. Changing a pending application may operate as a variation rather than a separate application.
The rules differ once a decision has been made or a review or appeal is underway. We recommend obtaining advice before withdrawing or submitting another application.
Documents to Keep
- Evidence of your previous permission and expiry date.
- The submitted application and confirmation.
- Payment receipts or relevant fee waiver records.
- Biometric instructions and attendance records.
- Home Office correspondence and decisions.
- Any appeal or administrative review records.
A complete dated record makes it easier to assess your position and respond to requests from an employer or adviser.
Related UK Immigration Guides
Official Guidance
- Home Office section 3C guidance
- Application validity, variation and withdrawal
- Employer Checking Service
This guide provides general information. Section 3C can involve complex timing and validity issues. Your position depends on your application history, notices and the applicable law.
