Skilled Worker Visa Salary Rules 2026 (UK): 3-Month, 12-Week & 17-Week Rolling Windows Explained
- VNJ LLP

- 4 days ago
- 9 min read
Updated: 3 days ago

At a Glance: Skilled Worker Salary Compliance – April 2026
From 8 April 2026, Skilled Worker salary compliance moves away from an annual assessment to a system based on defined pay periods, with ongoing assessment across those periods. This represents a significant shift in how compliance is measured in practice.
For ease of explanation in this article, we refer to these continuous assessment periods as “rolling windows”. This is not terminology used in the Home Office guidance, but it provides a practical way to understand how the rules operate.
In summary:
What’s changing: Salary compliance for Skilled Workers moves from annual assessment to pay-period-based checks
Key thresholds:
Monthly pay: ¼ of annual salary over any 3-month period
Weekly/frequent pay: 12/52 of annual salary over any 12-week period
Uneven weekly hours: 17/52 of annual salary over any 17-week period
Rolling windows: These periods are continuous and overlapping, not fixed blocks
Hourly rate: Must meet the required rate in each pay period
Main impact: Employers must manage when salary is paid, not just the total annual salary
Transitional rules: Apply to those whose Certificate of Sponsorships (CoSs) were assigned before 8 April 2026
Current Rule (Pre–8 April 2026)
Under the current system, Skilled Worker salary compliance is largely assessed on an annual basis. Employers must ensure that the worker receives the required salary over the course of the year and meets the applicable going rate.
In practice, this has allowed flexibility in workforce management. Employers have been able to accommodate fluctuations in demand without creating compliance issues.
For example:
Weekly hours could vary
Pay could fluctuate across the year
Lower pay in one period could be offset later
Provided the annual salary requirement was met, these variations did not generally create risk.
The 8 April 2026 Rules: Pay Periods and Continuous Assessment
From 8 April 2026, SW 14.3B of Appendix Skilled Worker introduces a structured approach to salary compliance based on pay periods. The applicable rule depends on both pay frequency and whether weekly hours are consistent.
Monthly Pay – SW 14.3B(b)(i)
Where a worker is paid monthly (or less frequently) and weekly hours are the same each week, salary is assessed over a three-month period.
This means that over any consecutive three-month period, the worker must receive at least one quarter of the annual salary.
For example:
Annual salary: £41,700
Minimum required over any 3 months: £10,425
This is not assessed in fixed quarters. Every consecutive three-month period must meet the requirement.
Weekly or Frequent Pay – SW 14.3B(b)(ii)
Where a worker is paid weekly or more frequently, and weekly hours are the same each week, salary is assessed over a 12-week period.
This requires that over any consecutive 12-week period, the worker receives at least 12/52 of the annual salary.
For example:
Annual salary: £41,700
Minimum required over any 12 weeks: £9,623.08
Again, the assessment applies continuously rather than in fixed blocks.
Uneven Weekly Hours – SW 14.3B(c)
Where weekly hours are not the same each week, resulting in uneven pay, the rules move into a more complex framework.
In these cases, salary must meet the required level over any consecutive 17-week period.
For example:
Annual salary: £41,700
Requirement: 17/52 of the annual salary over any 17 weeks: £13,632.70
This scenario requires ongoing monitoring, as compliance must be maintained across overlapping periods.
“Rolling Windows”: Understanding Continuous Assessment

Although not a term used in the Home Office guidance, the concept of continuous assessment can be understood as operating through what we refer to as rolling windows.
Rather than assessing compliance in fixed periods, the rules apply to every consecutive period.
For example, under the 17-week rule:
Weeks 1–17 must comply
Weeks 2–18 must also comply
Weeks 3–19 must also comply
This same principle applies to:
3-month periods (monthly pay)
12-week periods (weekly pay)
The practical effect is that compliance must be maintained at all times, not just at selected intervals.
Comparison of Skilled Worker Salary Rules (SW 14.3B)
Understanding which rule applies is critical to managing compliance effectively.
Rule | When It Applies | Assessment Period | Salary Requirement | Complexity |
b(i) | Monthly pay + consistent weekly hours | Any 3-month period | ¼ of annual salary | Low |
b(ii) | Weekly/frequent pay + consistent weekly hours | Any 12-week period | 12/52 of annual salary | Low |
c | Uneven weekly hours (variable pay) | Any 17-week period | 17/52 of annual salary | High |
In practical terms:
b(i) and b(ii) are generally easier to manage due to consistency
c introduces ongoing complexity due to continuous monitoring
Many employers will seek to structure working patterns to remain within b(i) or b(ii)
How This Changes Things for Employers
The move to pay period compliance has several important implications.
Front-Loading and Back-Loading Become Risky
Under the previous system, employers could vary pay across the year without issue.
Under the new rules, this becomes difficult because each consecutive period must independently meet the required threshold.
This means a structure that appears compliant overall may fail when assessed across a different period
As a result, front-loading and back-loading carry increased risk.
Uneven Hours Increase Complexity
Where weekly hours vary, the rules move into the 17-week framework.
This creates:
Continuous monitoring requirements
Overlapping assessment periods
Increased administrative burden
In practice, many employers may prefer to avoid this scenario.
Payroll Becomes a Compliance Function
Payroll decisions now directly impact immigration compliance.
Employers must consider:
Timing of payments
Consistency of hours
Impact of absences, including sick leave
What were previously routine HR decisions now carry regulatory implications.
Common Employer Mistakes Under the New Rules
Employers adjusting to the new system may encounter issues where existing payroll practices are retained without modification.
Common risks include:
Continuing to rely on annual salary rather than pay period compliance
Allowing weekly hours to vary unintentionally
Assuming front-loading or back-loading remains acceptable
Failing to consider overlapping assessment periods
Not accounting for reduced pay during absences
Addressing these issues early can significantly reduce compliance risk.
Case Studies
Case Study 1: Monthly Pay with Fixed Hours
A worker is paid monthly with consistent weekly hours:
Annual salary: £41,700
Requirement: £10,425 over any 3 months
Consistent pay ensures compliance across all periods.
Case Study 2: Weekly Pay with Fixed Hours
A worker is paid weekly with consistent hours:
Annual salary: £41,700
Weekly pay: approximately £802
Requirement: £9,623.08 over any 12 weeks
This structure is straightforward to manage.
Case Study 3: Uneven Weekly Hours
A worker’s hours vary significantly:
Annual salary: £41,700
Rule c applies
Salary must be assessed across any 17-week period
Weekly pay: approximately £802
Requirement: £13,632.70 over any 17 weeks
A compliant outcome in one period does not guarantee compliance in another.
Case Study 4: Back-Loaded Pay
A worker receives lower pay initially and higher pay later.
While total salary may meet annual requirements, earlier assessment periods may fall below the threshold, creating a breach.
Best Practice for Employers

The rules do not prescribe minimum weekly hours. However, in practice, employers may wish to adopt structures that reduce compliance risk.
Weekly Pay
Maintaining consistent weekly hours helps ensure compliance under the 12-week rule.
Around 37.5 hours per week aligns with required salary levels
Monthly Pay
Maintaining consistent weekly hours supports compliance under the 3-month rule.
Around 40.6 hours per week aligns with required thresholds
Uneven Hours
Where hours vary:
Monitor salary across all 17-week periods
Avoid significant fluctuations in pay
Plan for lower-pay periods
General Approach
Employers may wish to:
Keep weekly hours consistent where possible
Avoid unnecessary movement into the 17-week rule
Maintain clear payroll records
Plan for absences and reduced pay periods
Transitional Rules: Do the New Skilled Worker Salary Rules Affect Existing Workers?
One of the most common questions employers and Skilled Workers are asking is whether the new salary compliance rules apply to workers who are already sponsored.
The answer depends on when the CoS was assigned.
Workers Sponsored Before 8 April 2026
Where a Skilled Worker’s CoS was assigned before 8 April 2026, transitional provisions apply.
In practical terms:
The worker will generally remain subject to the rules in force at the time their CoS was assigned
This means the new pay period framework under SW 14.3B may not immediately apply
Existing arrangements based on annual salary assessment are likely to continue
However, this does not mean the new rules can be ignored entirely.
Employers should be aware that:
The new rules are likely to apply at the point of:
Extension applications
Change of employment applications
Any new CoS issued on or after 8 April 2026 will fall under the new framework
Mixed workforces (pre- and post-April 2026 CoS) may require different compliance approaches
Why This Still Matters for Employers
Even where transitional provisions apply, employers should not assume that no action is required.
In practice:
Payroll systems may need to accommodate two different compliance frameworks
Existing working patterns may not be suitable for future extensions
Early alignment with the new rules can reduce future disruption
For this reason, many employers are choosing to review and adjust their salary structures in advance, even for existing workers.
Common Scenarios
Employers may encounter situations such as:
Existing workers under old rules, but new hires under the new rules
Workers approaching visa extension, where new rules will apply
Businesses needing to standardise payroll practices across all staff
Each of these scenarios requires careful consideration to ensure ongoing compliance.
Key Points
If the CoS was issued before 8 April 2026, transitional provisions are likely to apply
If the CoS is issued on or after 8 April 2026, the new pay period rules apply
Over time, all sponsors are likely to move into the new system
If you are unsure whether the new Skilled Worker salary rules apply to your workforce, or how transitional provisions affect your business, it is advisable to review your current arrangements.
Key Takeaway
The 2026 changes represent a shift from annual salary compliance to continuous pay period compliance:
Different rules apply depending on pay frequency and working patterns
Consistent hours simplify compliance
Uneven hours introduce complexity under the 17-week rule
Continuous assessment (referred to here as “rolling windows”) requires compliance at all times
For many employers, the most practical approach will be to adopt consistent working patterns and avoid unnecessary complexity.
Contact Us
The changes to Skilled Worker salary compliance from April 2026 introduce a level of complexity that many employers will not have encountered before. In particular, where working hours are not consistent, the need to assess salary across continuous periods (referred to in this article as “rolling windows”) can create ongoing compliance risk.
1. Salary Compliance Structuring (One-Off Setup)
For most employers, the preferred approach is to design a pay and working pattern that avoids unnecessary complexity.
We provide a structured review of your current arrangements and advise on how to minimise the risk of non-compliance under SW 14.3B.
This includes:
Assessing whether b(i), b(ii), or c applies
Advising on pay frequency and weekly working hours
Identifying risk areas, including uneven hours and reduced pay periods
Providing a clear, compliant structure across your workforce
The aim is to ensure compliance without the need for ongoing monitoring of complex assessment periods.
2. Ongoing Compliance Support (Variable / Zero-Hours Workforce)
Where employers choose to retain zero-hours or variable working patterns, compliance becomes significantly more complex.
In these cases, we work closely with HR and payroll teams on an ongoing basis to support compliance throughout the year.
This includes:
Regular (typically weekly) review of hours worked and pay
Assessment of compliance across relevant pay periods
Identification of potential risks before they arise
Ongoing guidance to maintain compliance across all sponsored workers
This approach is designed for employers who require flexibility but recognise the increased compliance burden.
Which Approach Is Right for You?
In most cases, employers will find that a consistent approach to hours and pay significantly reduces both risk and administrative burden.
However, where flexibility is essential, ongoing compliance support may be appropriate.
Contact us to discuss your current arrangements or planned recruitment on 0115 998 7326 or complete our enquiry form.
FAQs
1. What are “rolling windows” in Skilled Worker salary compliance?
This is not a Home Office term. It describes how the rules apply to any consecutive period, rather than fixed blocks.
2. When does the 17-week rule apply?
It applies where weekly hours are not the same each week, resulting in uneven pay.
3. Can employers vary working hours?
Yes, but doing so is likely to trigger the 17-week rule, which requires more complex monitoring.
4. Does annual salary still matter?
Yes, but compliance is now assessed across defined pay periods rather than annually.
5. Do absences affect compliance?
They can. Reduced pay during absences may affect whether the relevant period meets the required threshold.
6. What is the simplest way to remain compliant?
Maintaining consistent weekly hours and pay is generally the most straightforward approach.
7. Do the New Skilled Worker Salary Rules Apply to Me?
If you are unsure whether the new Skilled Worker salary rules apply, the key factor is the date your Certificate of Sponsorship (CoS) was assigned.
Use the quick guide below.
If your CoS was assigned before 8 April 2026:
You will generally remain under the previous salary rules
Salary is assessed primarily on an annual basis
The new pay period rules under SW 14.3B do not usually apply immediately
If your CoS is assigned on or after 8 April 2026:
The new pay period rules apply
Salary must meet thresholds across:
3-month periods (monthly pay)
12-week periods (weekly pay)
17-week periods (uneven hours)
Compliance must be maintained continuously (referred to in this article as “rolling windows”)
If you are extending or changing employment:
The new rules are likely to apply
A new CoS will normally bring the worker into the updated framework
Practical takeaway
Existing workers may remain under old rules for now
New hires and extensions will fall under the new system
Many employers will need to operate both systems at the same time
If you are unsure which rules apply to your workforce, a structured review can prevent future compliance issues.



