Most business owners who lose their sponsor licence do not see it coming. They have not done anything they would recognise as wrong. They have simply paid a sponsored employee slightly less than the figure recorded on that worker’s Certificate of Sponsorship, perhaps because a promotion changed the hours, or a payroll run rounded something down, or a planned rise never quite got actioned. A year ago, a slip like that often passed unnoticed. Today, it can end your ability to employ anyone from overseas.

The reason is data. The Home Office now cross-checks what sponsors report against real-time PAYE records from HMRC. When the numbers do not line up, it shows up automatically. There is no longer an inspector who has to stumble across the discrepancy during a visit. The system flags it.

And the response has hardened. Between July 2024 and June 2025, the Home Office revoked 1,948 sponsor licences, more than double the 937 revoked the year before. The 2025 calendar year figure is higher still, the steepest enforcement on record. What worries me, watching this from the inside, is who is getting caught.

Small firms are bearing the brunt

The businesses coming to us in a panic are rarely the bad actors. They are small employers, a care home, a restaurant group, an engineering firm, who took on a skilled worker from abroad in good faith and do not have a dedicated HR or compliance person watching the detail. The owner is running the company. Sponsor duties sit in a folder somewhere, half-remembered.

That is exactly the profile the new enforcement model catches. A large company has a compliance team whose job is to keep the Certificate of Sponsorship and the payslip in lockstep. A twelve-person firm has the founder, who is also doing sales, hiring and everything else. When the Home Office moves straight to revocation rather than a warning, and it increasingly does, the smaller business has no buffer.

At A Y & J Solicitors, much of our business immigration work now involves helping exactly these employers, auditing sponsor records, fixing reporting gaps before a compliance visit, and defending licences once a revocation letter lands. The pattern is consistent enough that I can often guess the cause before I open the file.

The consequence is brutal and fast. When a licence is revoked, the sponsored employees usually have their permission curtailed to 60 days. They must find a new sponsor in that window or leave the country. For the employer, it can mean losing trained, valued staff overnight, and being barred from sponsoring anyone for twelve months. For a firm that depends on overseas skills, that is often the difference between trading and not.

What actually trips people up

Over and over, it is the same handful of mistakes, and none of them involve bad intent.

• Paying below the salary on the Certificate of Sponsorship, even temporarily, after a change in hours or role
• Failing to report a change, a new work address, a promotion, a period of unpaid leave, within the required time
• Assuming a discretionary bonus or overtime counts toward the salary threshold when it does not
• Treating the certificate as a one-off form rather than a figure that must match payroll every single pay period

That last point is the one I would underline. The salary on the certificate is not a starting estimate. It is a floor you have to keep clearing, month after month, for as long as you sponsor that person.

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The simple steps that keep you safe

The good news is that staying compliant does not require a compliance department. It requires a system, even a basic one, and someone whose job it is to own it.

Reconcile payroll against every active Certificate of Sponsorship on a set date each month. If a sponsored worker’s pay has dipped below their certificate figure, you want to find that before the Home Office does.

Write down who is responsible, and name a deputy. Most of the disasters we handle trace back to one person holding all the knowledge in their head, then going on leave or leaving the business.

Treat any change to a sponsored worker’s role, pay, hours or location as a reporting event, and diarise the deadline. The Sponsorship Management System reporting duties are tighter than most owners realise.

If you receive a letter from the Home Office suggesting a salary shortfall, do not ignore it and do not reply off the cuff. You will usually be given a chance to respond, and a clear, evidenced answer at that stage can be the difference between keeping your licence and losing it.

Even though it’s not complicated, it does need to be deliberate, because the era of the quiet warning is over. The Home Office has told employers plainly that sponsorship is a privilege, not a right, and its data now lets it act on that view at scale.

If you sponsor overseas workers, the safest assumption is that your payroll and your paperwork are already being compared. The firms that come through this unscathed are the ones who treated a small monthly check as a non-negotiable, long before anyone came knocking.

Yash Dubal is the CEO of A Y & J Solicitors.

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