Why a “routine” first payslip could trip up Scottish tech employers

Why your first payslip now matters for sponsor licence compliance

Scottish tech companies are increasingly reliant on global talent to address skills shortages in software engineering, data, AI, and cyber security. Recent changes to Home Office sponsor guidance mean that even well‑intentioned employers could now face scrutiny for something as routine as how a first payslip is calculated.

Updates linked to HC 1691 shift the focus of Skilled Worker salary assessment away from headline annual figures and towards what is actually paid in each pay period. This sits alongside wider sponsor duties, including right to work checking, and applies to Certificates of Sponsorship assigned on or after 8 April 2026. For tech employers operating fast‑moving onboarding processes, monthly payroll and mid‑cycle start dates, this creates a compliance risk that may not be immediately obvious unless payroll, HR and sponsor processes are closely aligned.

HC 1691 for STEM employers: what “pay period timing” means in practice

HC 1691 changes how skilled worker pay is assessed by focusing on pay period timing (for example, weekly vs monthly payroll). In practice, decision-makers may look at what is paid in each pay period when checking the role meets the relevant pay requirement, rather than relying only on the stated annual salary.

Practical steps for sponsors (HR and payroll)

“Short” or irregular pay periods (for example, where an employee starts mid-cycle and the first payslip is pro‑rated) may attract scrutiny if the amount paid for that period appears below the relevant requirement when viewed in isolation.

• Ensure CoS details reflect payroll arrangements: confirm pay frequency (weekly/monthly), hours and salary recorded on the CoS align with the contract and how the sponsored worker will be paid in practice.
• Document pro‑rating clearly: where the start date falls mid-cycle, ensure the payslip and/or payroll report clearly states the pay period dates covered and the basis of any pro‑rating.
• Maintain audit-ready evidence: retain payslips and payroll outputs showing pay period dates, gross pay and any adjustments (for example, unpaid leave, deductions or corrections).
• Assess changes for compliance impact: changes to hours, pay frequency or periods of unpaid leave may affect how pay appears against the requirement in a given pay period. Record the rationale and retain supporting documentation.

Worked example (monthly payroll): A worker is sponsored on a salary of £36,000 (i.e., £3,000 per month) and starts on 16 May. If the employer’s May payroll covers 1–31 May, the first payslip may show only 16 days’ pay (e.g., £1,548.39). Even though the annual salary is £36,000, the pay for that pay period may look lower because it is pro‑rated. To reduce the risk of confusion, ensure payroll records clearly show the pay period dates, the pro‑rating basis, and that the ongoing monthly pay from June is £3,000.

Sponsor guidance says the HC 1691 updates apply to CoS assigned on or after 8 April 2026. Given related guidance does not always flag the start date, sponsors may wish to take a cautious approach and assume pay-period presentation will be checked for applications relying on CoS assigned from that date.

Quick compliance checklist for STEM sponsor employers

• Ensure right to work checks are completed on time, correctly recorded, and repeated where required by immigration status (with a clear ownership model between HR and line management).
• For each sponsored worker, the CoS fields (hours, pay, pay frequency) match the employment contract and payroll setup.
• Payroll documentation clearly evidences pay period dates, gross pay, and any pro‑rating (especially for start/end months, or role changes).
• Any unpaid leave, salary sacrifice, deductions, or changes to hours/pay are assessed for Skilled Worker compliance impact and documented.
• Put in place controls to identify and resolve atypical first payslips (or other payroll anomalies) before they prompt questions in an application or during a compliance visit.

Next steps

 Sponsors should consider a short joint review between HR, payroll and the Level 1 user to confirm (i) CoS fields align with contractual terms and payroll settings, (ii) payroll outputs evidence pay period dates and any pro‑rating clearly, and (iii) right to work responsibilities and repeat-check triggers are documented and understood operationally. Where non-standard payroll cycles, frequent mid‑cycle starters or variable pay arrangements apply, it may be prudent to update onboarding checklists and template communications so that the first payslip is self-explanatory, and to retain a clear audit trail to support any future Home Office query or compliance visit.

How we can assist

 If you would like support reviewing your sponsor licence compliance processes (including right to work checking, CoS drafting practices and payroll evidence for Skilled Worker roles), please contact our immigration team. We can provide a targeted assessment of higher-risk cases (for example, mid‑cycle starters, pro‑rated first payslips, variable pay or non-standard payroll cycles) and practical recommendations to help reduce application and compliance visit risk.

Carolyn Bowie, Partner, Head of BTO’s Immigration Practice

cbo@bto.co.uk / 0141 221 8012