Supplementary Employment on Skilled Worker Visa Explained

The 20-hour rule

Supplementary employment is capped at 20 hours per week. Hours are counted across all supplementary employers, not per employer. Going over the cap breaches visa conditions and is the most common compliance issue with supplementary employment.

Hours include both paid working time and required attendance (briefings, mandatory meetings). They do not include personal study, travel time, or breaks. Most secondary employers track hours through payroll; the visa holder should monitor totals across employers.

SOC code and Immigration Salary List match

Supplementary employment must be in the same SOC occupation code as the main sponsored role, or in a SOC code on the Immigration Salary List (whether or not the main role is on that list). The ONS Standard Occupational Classification governs SOC codes; the same code includes a range of similar roles within the occupation family.

Where the supplementary role is on the Immigration Salary List but not the same SOC code as the main role, the supplementary rules still apply. The list itself is published on GOV.UK and updated periodically.

Timing outside the main role's hours

Supplementary work must be outside the working hours of the main sponsored role. Working hours include the contractual hours of the main job (typically 37.5-40 per week) plus any required mandatory overtime.

Evenings, weekends and annual leave are typically when supplementary employment fits. Working two jobs simultaneously (during the main role's hours) breaches the rule even if the supplementary role would otherwise be eligible.

Right to Work and supplementary employer obligations

Each supplementary employer must verify the visa holder's Right to Work using the eVisa share code or BRP. The supplementary employer is not the visa sponsor and does not have sponsor licence obligations beyond the standard Right to Work check.

The visa holder must comply with all tax and National Insurance obligations on the supplementary income. HMRC's PAYE system handles this for employees; self-employment (which is not permitted as main work) is also not generally permitted as supplementary work.

What to do if the supplementary role exceeds the rules

If the secondary employment exceeds 20 hours per week, is not in the same SOC code or on the Immigration Salary List, or is during the main role's hours, the visa holder breaches conditions. Curtailment is a risk.

Where the secondary role is intended to become the main role (a new sponsored employment in a different occupation), the correct route is a new Skilled Worker visa application with a new CoS from the new employer, not stretching supplementary employment beyond its limits.

The 20-hour rule and how it's counted

Hours are counted across all supplementary employers, not per employer. A worker with three supplementary jobs each at 8 hours per week is at 24 hours total - over the 20-hour cap. The worker must reduce or eliminate one to stay compliant.

Working time: includes all paid working time and required attendance (briefings, mandatory training, paid meal breaks where the role requires presence). Excludes personal study, travel time, and unpaid breaks.

Documenting hours: each supplementary employer's payslips record the hours worked. The worker monitors the total across employers. Where one employer's hours fluctuate week-to-week, the worker must be conservative to avoid breaches.

Sponsor knowledge: the main sponsor is not required to know about supplementary employment but it can be disclosed for transparency. The supplementary employer is not the sponsor and has no sponsor licence obligations beyond the standard Right to Work check.

SOC code matching and Immigration Salary List

Same SOC code: the supplementary role must be in the same SOC occupation code as the main sponsored role, or in a SOC code on the Immigration Salary List. The ONS Standard Occupational Classification groups similar roles within occupation families.

Example: a Skilled Worker visa holder sponsored in SOC 2136 (programmer or software development professional) can take supplementary work in any role within SOC 2136, plus in any SOC code on the Immigration Salary List (regardless of whether SOC 2136 is on the list).

Immigration Salary List flexibility: gives Skilled Worker visa holders broader supplementary employment options than just their main SOC code. The List is updated periodically; the supplementary employment must be in a List-included SOC at the time of the work, not at any historical point.

Borderline SOC code matches: where the supplementary role doesn't fit cleanly within the same SOC code as the main role, the worker should consider the work carefully. The Home Office's caseworker guidance covers SOC code interpretation; where doubt exists, specialist advice is sensible.

Timing and the main role's working hours

Outside main role hours: supplementary work must be outside the working hours of the main sponsored role. The main role's working hours include contractual hours plus required mandatory overtime.

Evenings and weekends: typical times for supplementary work. A 40-hour main role on weekdays leaves evenings and weekends available for supplementary work within the 20-hour cap.

Annual leave: time on annual leave from the main role can be used for supplementary work as the main role is not occupying those hours. However, the 20-hour cap still applies in the working week.

Concurrent main and supplementary: working both roles in the same hours breaches the supplementary employment rule. The sponsor would normally know this through working time records; HMRC PAYE records also show overlapping employment.

Right to Work and tax obligations for supplementary employment

Time on the Skilled Worker route counts towards 5 years of continuous lawful residence for ILR under Appendix Skilled Worker, with permitted absences capped at 180 days in any rolling 12-month period. Changes of employer within the route do not reset the clock as long as continuous sponsored employment is maintained.

Switching to Health and Care Worker, Senior or Specialist Worker, or Scale-up routes can preserve the continuous-residence count under Appendix Continuous Residence. Switching to Global Talent (with endorsement at Exceptional Talent level) can shorten total time to settlement to 3 years from the Global Talent switch point.

British citizenship by naturalisation under the British Nationality Act 1981 requires 12 months of ILR (or sooner for spouses of British citizens with 3 years' UK residence), the standard residence test with the absence cap, B1 English (typically met for ILR), Life in the UK test (also typically met for ILR), and the good character requirement assessed under Home Office guidance.

Specific scenarios in supplementary employment

Working at multiple hospitals (medical professionals): doctors and other healthcare professionals sometimes hold positions at multiple NHS hospitals. Where the supplementary role is in the same SOC code or on the Immigration Salary List, it qualifies as supplementary.

Teaching alongside the main role: lecturers and academic researchers may have additional teaching at other institutions. Within the same SOC code (academic teaching), supplementary teaching is permitted. Outside the SOC code, the rules tighten.

Consulting work: where the main role permits, occasional consulting in the same SOC code may qualify as supplementary employment. The 20-hour cap applies; consulting through a personal service company faces IR35 considerations.

Charity and voluntary roles: unpaid voluntary work is not employment for visa purposes. Paid charity roles (even at low rates) are employment; the supplementary rules apply.

Reporting changes to the main sponsor: not formally required for supplementary employment but transparency is sensible. Some sponsors include reporting requirements in employment contracts.

Tax interactions for supplementary employment

HMRC personal tax account: at gov.uk/personal-tax-account. Shows tax code, P60 records, PAYE history, self-assessment status. Register via Government Gateway or GOV.UK One Login.

Tax codes and PAYE: emergency tax codes (0T, BR) apply at the start of employment until HMRC issues the correct code. The first few payslips may show higher deductions; refunds for overpayment are processed automatically at year end via P800 or through the personal tax account.

Self-assessment for additional income: required where the worker has self-employment income, property rental income, dividends above the threshold, or other non-PAYE income. Annual returns are due 31 January following the tax year end.

National Insurance contributions: Class 1 on employment income, Class 2 and 4 on self-employment, Class 3 voluntary for non-residents. NI contributions count towards State Pension entitlement.

Pension contributions: tax relief at the worker's marginal rate. Auto-enrolment under the Pensions Act 2008 covers most workers; employer contributions match at the agreed level.

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.

Where to get help with UK immigration matters

Citizens Advice: a network of independent charities providing free, confidential and impartial advice across the UK. Local Citizens Advice offices handle immigration enquiries at level 1; specialist services in some locations cover more complex matters. The Citizens Advice website (citizensadvice.org.uk) has comprehensive guidance on UK immigration.

Joint Council for the Welfare of Immigrants (JCWI): an independent organisation campaigning for the rights of refugees, asylum seekers and migrants. JCWI provides advice, advocacy, and policy analysis on immigration matters. Their published guidance covers all major UK routes.

Migrant Help: works with people seeking asylum, victims of human trafficking, and others affected by immigration. Provides advice on UK immigration matters and works with the Home Office on asylum support arrangements.

Right to Remain: provides advice and resources for people navigating the UK immigration system. The Right to Remain Toolkit is a comprehensive online resource covering the main routes and procedures.

Free Movement: a leading immigration law blog providing updates and analysis on UK immigration. The site is widely used by practitioners and informed applicants for current developments.

Specialist immigration solicitors: handle the most complex matters. The Law Society's Find a Solicitor service lists firms specialising in immigration. The Immigration Law Practitioners' Association (ILPA) maintains a directory of member firms.

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

How many hours can I work in supplementary employment on a Skilled Worker visa?

Up to 20 hours per week, across all supplementary employers combined. Hours must be outside the working hours of the main sponsored role.

Does my supplementary job need to be in the same field as my main job?

It must be in the same SOC occupation code as your main job, or in a SOC code on the Immigration Salary List. The SOC codes group similar roles within occupation families.

Can I do supplementary work for a different sponsor?

Yes. The supplementary employer is not your visa sponsor and does not need a sponsor licence. They verify your Right to Work using the standard process.

Can I be self-employed in supplementary employment?

Self-employment is generally not permitted on the Skilled Worker visa, including as supplementary work. Supplementary employment under PAYE with another employer is the permitted pattern.

What if I want to make my supplementary job my main job?

Apply for a new Skilled Worker visa with a new CoS from that employer for the new main role. Once granted, the new role becomes the main sponsored employment. The supplementary employment rules then apply to anything alongside the new main role.

Frequently asked questions

How many hours can I work in supplementary employment on a Skilled Worker visa?

Up to 20 hours per week, across all supplementary employers combined. Hours must be outside the working hours of the main sponsored role.

Does my supplementary job need to be in the same field as my main job?

It must be in the same SOC occupation code as your main job, or in a SOC code on the Immigration Salary List. The SOC codes group similar roles within occupation families.

Can I do supplementary work for a different sponsor?

Yes. The supplementary employer is not your visa sponsor and does not need a sponsor licence. They verify your Right to Work using the standard process.

Can I be self-employed in supplementary employment?

Self-employment is generally not permitted on the Skilled Worker visa, including as supplementary work. Supplementary employment under PAYE with another employer is the permitted pattern.

What if I want to make my supplementary job my main job?

Apply for a new Skilled Worker visa with a new CoS from that employer for the new main role. Once granted, the new role becomes the main sponsored employment. The supplementary employment rules then apply to anything alongside the new main role.