For years, UK visa sponsorship compliance followed a predictable rhythm. As long as your sponsored employees hit their required salary by the end of the tax year, the Home Office was generally satisfied.
That era officially ended on April 8, 2026.
Under the new Appendix Skilled Worker paragraph SW 14.3B, the Home Office has shifted its gaze from the “headline” annual salary to real-time, granular monitoring. If you are a sponsor, “averaging out” a salary over 12 months is no longer a valid compliance strategy.
Here is what your HR and Payroll teams need to know to stay on the right side of the law.
- The “Three-Month Rule” & The 12-Week Clock
The most significant technical change is the introduction of strict pay-period windows. The Home Office now requires that salary levels are met within specific, short-term blocks rather than annually.
- For Monthly Payroll: The salary paid over any three-month period must now be at least equal to one-quarter of the required annual threshold.
- For Weekly/Fortnightly Payroll: The salary paid over any 12-week period must be at least equal to 12/52 of the annual threshold.
The Risk: If an employee takes a period of unpaid leave or reduces their hours in a way that causes their pay to dip below that quarterly requirement, you are technically in breach even if you plan to “make it up” with a large bonus in December.
- The Danger of “Lumpy” Pay
In many industries, total compensation is “lumpy”; base salaries are supplemented by quarterly bonuses, commission, or seasonal overtime. Previously, these fluctuations were ignored as long as the P60 looked correct.
Now, “lumpy” pay is a compliance red flag. Because the Home Office is monitoring per pay period, a worker whose base salary sits close to the minimum threshold could trigger an automated alert during a “dry” month where no commission is earned.
Critical Note: The Home Office has clarified that employers cannot “compensate later” for underpayment in a previous period. Each window must stand on its own.
- HMRC Data-Sharing: The “Invisible Auditor”
Perhaps the most daunting change is the level of automation. As of April 2026, the Home Office has gained direct, real-time access to HMRC payroll data.
In the past, a salary discrepancy might only be discovered during a physical audit of your site. Today, the “auditor” is an algorithm. Discrepancies between the salary stated on the Certificate of Sponsorship (CoS) and the Real-Time Information (RTI) submitted to HMRC can trigger an investigation or a “Request for Information” (RFI) almost instantly.
What Should Sponsors Do Now?
To avoid the risk of license suspension or revocation, businesses should take three immediate steps:
- Audit Your “Close Cases”: Identify any sponsored workers whose base salary (excluding bonuses) is within 10% of the minimum threshold or the “going rate” for their SOC code.
- Review Unpaid Leave Policies: Ensure that any unpaid leave; even just a few days is tracked against the three-month/12-week windows to ensure the threshold isn’t breached.
- Sync HR and Payroll: Ensure your payroll software is flagged to alert HR if a sponsored worker’s gross pay for the month falls below the specific 1/12th (or 1/52nd) requirement of their visa conditions.
The Bottom Line: The Home Office is moving toward a “digital border” that isn’t just about who enters the country, but how they are paid every single month. If your compliance checks are still annual, it’s time to move them to monthly.
Source: Statement of Changes to the Immigration Rules (HC 1691), Section SW 14.3B, effective April 8, 2026.
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The above is accurate as at 05 May 2026.
