TL;DR
Most UK work and family visa holders can extend their leave from inside the UK before the current visa expires. This article explains the timing, the documents needed, the in-country application route, and how Section 3C leave protects status during processing.
Key facts
- Extension applications are made online via GOV.UK and biometrics are typically enrolled via the ID Check app or at a centre.
- Section 3C of the Immigration Act 1971 extends leave automatically during processing of a timely in-country application.
- The application must be submitted before the current visa expires for Section 3C leave to apply.
- Most in-country extensions follow UKVI's published 8-week standard service or 5 working days for Priority service.
- Section 3C of the Immigration Act 1971 automatically extends existing leave during timely in-country application processing.
- In-country extension fees are typically lower than out-of-country fees for the same route; IHS is for the full extension period.
- Travel outside the UK during Section 3C leave ends the leave; re-entry requires the new visa to have been granted.
- Skilled Worker extensions do not reset the 5-year clock to settlement as long as continuous sponsored employment is maintained.
When to apply for an extension
Extensions can typically be applied for in the final months of the current visa. The exact window varies by route; the policy guidance for each route specifies the earliest date. Applying too early can lead to refusal on the basis that the next period is not yet justified.
Late applications (after the current visa expires) are not protected by Section 3C and are generally invalid. Where exceptional circumstances apply, an out-of-time application may be considered but the applicant is overstaying until the application is granted.
Section 3C leave
Section 3C of the Immigration Act 1971 automatically extends a person's existing leave during processing of a timely in-country application. The same conditions on work, study and recourse to public funds apply during this period.
Section 3C ends when the application is decided (granted, refused or withdrawn) or when the applicant leaves the UK. Travel outside the UK during 3C ends the leave; re-entry then requires the new visa to have been granted.
How to apply for an extension
The online application is made via GOV.UK. Biometrics are usually enrolled via the UK Immigration: ID Check app for eligible applicants; others attend a UKVCAS centre. Document upload is online with most routes.
Fees and the Immigration Health Surcharge apply at the in-country rates published on GOV.UK. The fees are similar to but not identical to out-of-country rates; the IHS is for the full extension period.
Documents for extension
Documents vary by route but typically include: current passport, current BRP or eVisa share code, evidence of continuing eligibility (employment evidence for Skilled Worker, relationship evidence for family route, ongoing study for Student), updated maintenance evidence where required, English language evidence at the required level.
For family route extensions to leave to remain, the relationship evidence covers the period since the last grant: photos, communication, joint household evidence and so on. Children's birth certificates if the family has expanded.
After the extension is granted
Successful extensions issue a new BRP or eVisa with the extended visa dates. The conditions on the visa are typically the same as the original grant unless the rules have changed. The new vignette in the passport is not required for in-country extensions.
Onward extensions or settlement applications are then made on the normal timeline. Continuous lawful residence counts towards eventual settlement, with permitted absences subject to the route's specific rules.
Timing the extension application
Most routes allow extension applications in the final months before the current visa expires. The exact window is in each route's specific guidance on GOV.UK. For Skilled Worker, extensions can typically be made in the final 4 months; for family route, in the final 28 days; for Student, before the course is complete with specific rules; for Global Talent, in the final months of the visa.
Applying within the window before expiry secures Section 3C leave under the Immigration Act 1971. Section 3C automatically extends the existing leave during processing of the timely application, with the same conditions on work, study and public funds.
Applying after the visa has expired is generally invalid. The applicant is overstaying from the day after expiry; the application can sometimes be considered with explanation of the delay but is at risk of refusal on procedural grounds. Specialist advice is the norm for late applications.
Sponsored route timing: extensions on Skilled Worker should align with the new Certificate of Sponsorship from the same or a new employer. The CoS is assigned within 3 months of intended use; planning the CoS issue date to align with the application date avoids issues.
Documents for in-country extensions
Current passport: with valid passport for the duration of the extension period requested. Some routes require minimum remaining validity.
Current eVisa share code or BRP: provides evidence of the existing immigration status. The share code is generated from the UKVI account at gov.uk/view-prove-immigration-status.
Route-specific evidence: Skilled Worker needs new CoS plus salary evidence and English (typically already met at initial application); family route needs updated relationship evidence covering the period since initial grant plus financial evidence at current MIR; Student needs new CAS plus updated maintenance evidence.
TB test certificate: typically not required for in-country extensions unless the applicant has been absent from the UK for substantial periods in listed countries. The route's specific guidance covers when retesting applies.
English language: usually carried forward from the initial application if the level required has not increased. Family route extension requires A2 (up from A1 at initial entry); ILR requires B1.
Fees, IHS and priority service for extensions
In-country extension fees: published on GOV.UK and updated periodically. Generally lower than out-of-country fees for the same route. The fee is paid online via debit or credit card.
IHS for the extension period: calculated for the full extension visa length at the current rate. Many extensions are for 30-36 months; the IHS for 3 years at the post-February-2024 standard rate is substantial.
Priority service: Priority Visa for in-country extensions targets about 5 working days; Super Priority Visa targets 1 working day. Both fees are paid in addition to the standard fee. Standard service is 8 weeks.
Cost example: a Skilled Worker extension to 5 years total with a 2-year extension period, single applicant, Standard service: application fee plus IHS for 2 years plus potentially Priority fee. Typically £2,500-£4,000 for a single applicant.
Dependants extending alongside: each dependant pays separate fees and IHS. The application can be consolidated (all family members in one application) for administrative simplicity.
Section 3C leave and travel during processing
Section 3C of the Immigration Act 1971: automatic continuation of existing leave during processing of a timely in-country application. The same conditions apply (work, study, no recourse to public funds where applicable).
3C leave ends when: the application is decided (granted, refused, withdrawn), the applicant leaves the UK, the application is no longer pending (e.g. variation of the application withdrawn). Travel outside the UK during 3C ends the leave; re-entry then requires the new visa to have been granted.
Where 3C leave is in place but the applicant needs to travel urgently: the application can sometimes be withdrawn to recover the passport, but the existing visa may have expired; the practical effect is that travel may not be feasible until the new visa is granted. Specialist advice is the norm for these situations.
Right to work and right to rent during 3C: the eVisa share code or BRP continues to evidence the right to work and right to rent. Employers and landlords can verify the status through the View and prove service. Where the BRP has expired but 3C leave is in place, the eVisa share code becomes the operative evidence.
Frequent extension issues and solutions
Skilled Worker employer change: the new employer issues a new CoS. The application is for the new role at the new employer. The 5-year clock to settlement does not reset as long as continuous sponsored employment is maintained.
Salary issues at extension: the salary must meet the going rate at the time of extension. Going rates are sometimes updated between initial application and extension; ensuring the role still meets the current rate is part of the extension assessment.
Family route relationship continuing: relationship evidence covers the 2.5 years since initial grant. Joint household documents, photos, communications during separations, family acknowledgement all support the continuing genuine and subsisting relationship.
Family route financial test at extension: applies to current circumstances rather than initial period. The sponsor's UK income at the date of application, the applicant's UK income (in-country), and any cash savings combine under the same Categories A-G structure.
Children turning 18 during the visa: maintain dependant status until visa end; can transition to ILR with the main applicant at the appropriate time. After 18 they cannot be added as new dependants.
Path to settlement after extension
Skilled Worker 5-year route: initial 3-year or 5-year visa plus extension to 5 years total, then ILR application. The 5-year clock counts continuous lawful residence; permitted absences are 180 days per rolling 12 months.
Family route 5-year route: 33-month initial entry plus 30-month extension, then ILR after 5 years total. English progresses A1 to A2 to B1 across the stages.
Family route 10-year route: extensions every 30 months across the 10 years, then ILR. The route applies where the 5-year route's requirements are not fully met but Article 8 considerations support residence.
Combined-route settlement: time on different routes can count towards Long Residence (10 years of continuous lawful residence in any combination), which is the alternative when the standard 5-year clock has reset due to route changes.
ILR application: at the in-country rate, with Life in the UK test and B1 English in addition to route-specific requirements. The application is made up to 28 days before the 5-year (or other) anniversary.
Coordinating extensions across family members
Consolidated family applications: the main applicant and dependants can apply together in a single submission. The application reference covers all family members; each has separate fees and IHS but the process is unified.
Different visa types in the family: where one parent is on Skilled Worker, the other on family route, and children on dependant visas, extensions follow each visa's own timeline. Coordinating the timing typically aligns family extension applications.
Children turning 18 during the extension period: maintain dependant status. New dependant applications for over-18s are not eligible; older children remain on the visa they were granted as a dependant.
Switching routes during extension: where one family member is switching routes (e.g. Skilled Worker to family, or Student to Skilled Worker), the timing affects the others. Family applications can be made for all dependants in a single submission even when the main applicant is switching routes.
Family budget planning: total extension fees plus IHS for a family of four typically £10,000-£20,000. Plan cash flow in advance; some sponsors cover dependant fees as part of relocation packages.
Records to support extension applications
Document organisation: a structured folder system (physical or digital) for immigration documents reduces friction across the years of the visa. Categories: identity (passports, BRPs, eVisa records), employment (CoS, payslips, employer letters), finances (bank statements, tax returns), relationships (where applicable), education (where applicable), travel (boarding passes, hotel receipts).
Digital preservation: scan and back up all documents to secure cloud storage. Multiple backups (separate cloud, USB drive, family member's copy) protect against loss. Encryption is sensible for sensitive documents (tax records, financial statements).
Long-term retention: documents from the visa period are needed at extension, ILR, and potentially naturalisation. Keep documents for at least 6 years after the visa period; immigration records are often referenced years later.
Records during the qualifying period: from day one of the initial visa, track UK presence and absences for the eventual settlement calculation. Travel logs, employer travel records, and supporting evidence all build the documentary picture.
Long-term planning across the immigration journey
Long-term planning across the visa lifecycle: the journey from initial visa to ILR to British citizenship spans 6-8 years typically. Building the documentary record, maintaining lawful status, planning extensions and switches, and the eventual settlement application all benefit from a long-term view.
Career and family planning around immigration: visa requirements interact with career progression, education choices, family timing, and other life decisions. Where significant life events are planned, considering the immigration position is part of the planning.
Risk management: keep documents, maintain contact with UKVI through changes of address, comply with visa conditions, build a clean record. Issues that arise during the visa years are easier to address proactively than at the settlement application.
Backup routes: where the primary route encounters difficulties, alternative routes provide options. Skilled Worker holders can consider Global Talent, family route, Innovator Founder depending on circumstances. Long Residence (10 years) provides a backup settlement path.
Future return scenarios: where the applicant may return to the country of origin or move elsewhere, planning preserves options. Maintaining country-of-origin ties, financial records, and qualifications supports future flexibility.
Disclaimer
This article provides general information about UK immigration, tax and consumer matters and is not legal, financial or tax advice. Rules, fees and thresholds change. Always check GOV.UK and the relevant UK regulator before acting, and consider taking professional advice tailored to individual circumstances.
Frequently asked questions
When should I apply to extend my UK visa?
Most routes allow applications in the final months before the current visa expires. Skilled Worker: final 4 months. Family route: final 28 days. Student: before the course completes with specific rules. Global Talent: final months of the visa. Applying within the window and before expiry secures Section 3C leave under the Immigration Act 1971, which automatically extends the existing leave during processing. Late applications (after expiry) are usually invalid and the applicant is overstaying.
What is Section 3C leave?
Section 3C of the Immigration Act 1971 automatically extends existing leave during processing of a timely in-country application. The same conditions apply (work, study, no recourse to public funds where applicable). It ends when the application is decided, withdrawn, or the applicant leaves the UK. The eVisa share code or BRP continues to evidence the right to work and right to rent during 3C; employers and landlords can verify the status through the View and prove service.
Can I travel outside the UK while my extension is being processed?
Travel outside the UK during processing ends Section 3C leave. The applicant cannot re-enter on the original visa if it has expired, and must wait for the new visa to be granted before travelling back. The passport is sometimes retained at the visa application centre during processing. Where travel is genuinely necessary, the application can sometimes be withdrawn to recover the passport, but this can mean overstaying if the existing visa has expired. Specialist advice is the norm for these situations.
What if my UK visa has already expired before I apply?
Late applications (after the current visa expires) are not protected by Section 3C and are usually invalid. The applicant is overstaying from the day after expiry. Exceptional circumstances may be considered (serious medical incapacity, bereavement, circumstances outside the applicant's control) but the applicant is overstaying until any out-of-time application is granted. Specialist immigration advice is essential for late applications; the consequences include re-entry bans and effect on future applications.
Do I need to attend a biometric appointment to extend my UK visa?
Most extensions are eligible for the UK Immigration: ID Check app, which removes the need to attend a centre. The app uses the smartphone camera and NFC chip reader to verify identity and capture biometrics remotely. Where the app is not available for the specific route or applicant, a UKVCAS centre appointment is booked online during the application. UKVCAS (UK Visa & Citizenship Application Services) is the in-country biometric service operated by Sopra Steria.
Frequently asked questions
When should I apply to extend my UK visa?
Most routes allow applications in the final months before the current visa expires. Skilled Worker: final 4 months. Family route: final 28 days. Student: before the course completes with specific rules. Global Talent: final months of the visa. Applying within the window and before expiry secures Section 3C leave under the Immigration Act 1971, which automatically extends the existing leave during processing. Late applications (after expiry) are usually invalid and the applicant is overstaying.
What is Section 3C leave?
Section 3C of the Immigration Act 1971 automatically extends existing leave during processing of a timely in-country application. The same conditions apply (work, study, no recourse to public funds where applicable). It ends when the application is decided, withdrawn, or the applicant leaves the UK. The eVisa share code or BRP continues to evidence the right to work and right to rent during 3C; employers and landlords can verify the status through the View and prove service.
Can I travel outside the UK while my extension is being processed?
Travel outside the UK during processing ends Section 3C leave. The applicant cannot re-enter on the original visa if it has expired, and must wait for the new visa to be granted before travelling back. The passport is sometimes retained at the visa application centre during processing. Where travel is genuinely necessary, the application can sometimes be withdrawn to recover the passport, but this can mean overstaying if the existing visa has expired. Specialist advice is the norm for these situations.
What if my UK visa has already expired before I apply?
Late applications (after the current visa expires) are not protected by Section 3C and are usually invalid. The applicant is overstaying from the day after expiry. Exceptional circumstances may be considered (serious medical incapacity, bereavement, circumstances outside the applicant's control) but the applicant is overstaying until any out-of-time application is granted. Specialist immigration advice is essential for late applications; the consequences include re-entry bans and effect on future applications.
Do I need to attend a biometric appointment to extend my UK visa?
Most extensions are eligible for the UK Immigration: ID Check app, which removes the need to attend a centre. The app uses the smartphone camera and NFC chip reader to verify identity and capture biometrics remotely. Where the app is not available for the specific route or applicant, a UKVCAS centre appointment is booked online during the application. UKVCAS (UK Visa & Citizenship Application Services) is the in-country biometric service operated by Sopra Steria.