CoS Allocation Priority Service: Fast-Track Your Request with Expert Help

What is the CoS Allocation Priority Service?

UK Visas and Immigration (UKVI) offers a paid priority service that allows A-rated Worker and Temporary Worker sponsors to fast-track requests, rather than waiting in the standard, unprioritised queue. This can reduce the wait from around 18 weeks to 5 working days. This is for consideration not a decision, and priority services do not guarantee approval.

The sponsor first submits the allocation request through SMS, then asks UKVI to consider that request through the priority service. UKVI still decides whether the allocation is justified and may grant fewer CoS than requested or none.

For CoS allocation, it can prioritise:

• Additional allocation requests during the current CoS year
• A manual annual (follow-on) allocation request

It must be for an Undefined CoS only.

What CoS Allocation Requests Can Use the Priority Service?

A CoS allocation request is part of the Post-Licence Priority Service, where there are a number of requests that can be prioritised. Note, that not all requests can. You can use the priority service when you need additional (in-year) CoS allocation, or annual (follow-on) CoS allocations.

Additional (in-year) CoS allocation

If your existing allocation will not last until the end of the CoS year, or it was set to zero, you can request an increase through SMS and explain why more certificates are needed. The additional certificates sought through this priority route must be Undefined CoS. For example, a Skilled Worker sponsor might need more Undefined CoS for workers applying to remain in the UK.

Annual (follow-on) CoS allocation

An annual allocation covers the sponsor’s next CoS year. Some sponsors receive an automatic allocation based on the number assigned in the previous year; others need to make a manual follow-on request through SMS. The Home Office priority service expressly includes annual allocation requests. This is separate from seeking extra certificates part-way through the current year.

Unused CoS do not carry forward into the next CoS year. If an automatic allocation is lower than your future needs, you may also need to make a manual request for an increase.

When Should an Employer Use the Priority Service?

It may be useful when your Undefined CoS balance is nearly exhausted, unexpected recruitment creates a need for additional certificates, an allocation was set to zero, or a manual annual allocation needs a quicker decision. It is particularly relevant where a standard request would put a planned start date at risk.

Priority is a way to seek earlier consideration of a properly prepared request. It does not replace forward planning or the need to show that the roles and number of certificates are credible.

CoS Allocation Priority Service – Eligibility at a Glance

To use the priority service, your organisation must:

• Hold a fully active, A-rated Worker or Temporary Worker sponsor licence
• Have already submitted the underlying change via the Sponsor Management System (SMS) before emailing the priority mailbox
• Ensure the SMS request is not already in progress or allocated to a caseworker
• Provide a printed, signed submission sheet if the request relates to an Authorising Officer replacement or adding a representative
• Confirm any CoS request is for undefined CoS only

How the CoS Allocation Process Works

1. Submit the relevant change of circumstances request through the SMS.
2. Email the priority service mailbox with a completed priority request form, using the required subject line format (organisation name, sponsor licence number, request type).
3. If accepted, you’ll receive a confirmation email followed by a Worldpay payment link.
4. Payment must be made within 72 hours or the request lapses.
5. Once payment is confirmed, eligible requests are typically considered within 5 working days, starting the working day after payment.

What Information and Evidence May UKVI Need?

UKVI may ask why the allocation is needed and whether the number matches the sponsor’s genuine recruitment plans.

The sponsor should also be able to explain the proposed roles and demonstrate that the work meets the relevant route requirements, including skill and salary rules.

The evidence required is case-specific; UKVI may request further documents before deciding the allocation.

Depending on the case, relevant information can include the size and nature of the business, the number of people it employs, how long it has traded, its past dealings with UKVI, recruitment arrangements and any agents involved.

What If UKVI Requests More Information?

The Authorising Officer should monitor email, including spam and junk folders, throughout the consideration period. Reply within the time UKVI specifies in their email communications and provide the information requested. If it is not supplied in due course, UKVI may reject the request without refunding the priority fee.

How to Justify the Number of CoS You Need

• Start with the number of workers you expect to sponsor, then connect each expected hire or group of hires to the roles, likely timing and business need.
• Explain why the current allocation will not be sufficient, and support the request with recruitment plans, contracts or other records where relevant.
• Avoid requesting an arbitrary round number without an explanation. UKVI can set a lower allocation or zero if it is not satisfied that the number is justified, the need is credible or the sponsor can offer eligible work.
• If your circumstances have changed since a previous allocation decision, explain what changed.

Priority CoS Allocation Fee

The Home Office charges £350 per request for use of the CoS allocation (post-licence) priority service. This is a Home Office fee, separate from any professional fees for support in preparing and submitting your application.

How Long Does Priority CoS Allocation Take?

It can take up to 18 weeks for consideration of your CoS allocation request. You must still make the request on the SMS under the priority service, but under the priority service your request will be considered within five working days. This is after receiving the payment and (if required, for some requests), the submission sheet.

When Does the Five-Working-Day Processing Time Start?

The 5 workings days start on the working day after payment. If you pay on Monday, Tuesday is day one. A complex request or additional checks may mean the outcome takes longer; UKVI will email the Authorising Officer if it cannot complete the case within the standard period.

Priority CoS Allocation vs Standard Allocation

What Happens After the Allocation Is Approved?

The approved number of Undefined CoS will be reflected in the sponsor’s SMS allocation. Approval gives you certificates available to assign; it does not assign one to a worker or grant anyone a visa. Follow the applicable rules for the role and worker when you are ready to assign a certificate. See our guide to assigning a CoS.

Can You Use Priority Service for a Defined CoS?

No, not for an additional CoS allocation request. A Defined CoS for a Skilled Worker applying from outside the UK is requested through a separate SMS process and is not drawn from the sponsor’s annual Undefined CoS allocation. UKVI says a Defined CoS priority allocation request will be rejected and the priority fee will not be refunded. See our Defined CoS guide if you need a certificate for a Skilled Worker applying from overseas.

Why Can a Priority Request Be Unsuccessful?

UKVI may not accept a priority request if it is ineligible, incomplete, submitted outside operating hours or made after that day’s capacity has been reached. A Defined CoS request is not suitable for additional allocation priority. If you receive no response, assume the priority application has not been successful; the underlying SMS request can still remain pending through the standard process.

Acceptance into the priority service and approval of the underlying CoS allocation are different decisions. UKVI can ask for more evidence or grant fewer certificates than requested.

What Other Priority Requests are Covered by the Priority Service?

In addition to CoS allocation requests, the wider post-licence priority service also covers certain key-personnel and organisation changes. You may make multiple requests using the same priority service form, as long as they have not yet been assigned, they are all eligible for priority service and you pay the fee for each request (£350 each).

• Adding or changing a Level 1 user
• Replacing or amending the Authorising Officer
• Replacing or amending the Key Contact
• Adding a representative
• Updating your organisation’s details following a change of premises

Priority services are available for routes, including the Skilled Worker visa and Senior or Specialist Worker visa. Requests connected to the Global Business Mobility (GBM) UK Expansion Worker, Service Supplier, or Secondment Worker routes are excluded from priority handling, and Student sponsors use a different system.

Other Sponsor Licence Related Service Fees

Other priority costs are incurred depending which stage of the process you are in.

• To fast-track a Sponsor Licence application, the fee is £750 using the pre-licence priority service
• To speed up a decision on a work visa application (payable by the individual applicant) it costs £500 for the priority service (typical decision in 5 working days) or £1000 for the super priority services (for a decisionby the end of the next working day).
• After a CoS allocation there is a fee of £525 for a Skilled Worker, Senior or Specialist Worker, or Minister of Religion CoS. For other temporary worker visas that fee is £55.
• An Immigration Skills Charge (ISC) also applies to Skilled Worker visas and Senior or Specialist Worker visas. This is payable after your CoS allocation is approved by the Home Office. It costs £364 for small businesses or £1,000 for large businesses for 12 months.

Why Employers are Struggling with CoS Allocation?

CoS allocation shortages are one of the most common pain points sponsor licence holders raise with us. The process is demanding and demand is regularly exceeding allocation. Daily caps are currently being filled quickly, submissions outside of the daily time blocks are disregarded and there is a high bar placed on submission accuracy.

For an HR team managing this alongside day-to-day sponsor duties, it’s easy to see why requests fall through the cracks and each failed attempt costs time, and potentially the service fee, without a guaranteed outcome. Here are some of the most common issues faced by employers and HR teams:

• Only 120 guaranteed priority requests are accepted each day. Any demands in excess of this depend on Home Office resources. 
• Requests are only accepted during the hours 7am – 5pm on Monday to Friday. If a request is submitted outside of the block it is automatically disregarded.
• Only undefined CoS requests qualify for priority allocation. A defined CoS request will be rejected for priority allocation and no refund is issued if you pay for the service, when unsuitable.
• Incomplete forms, missing submission sheets or representative changes, or a subject line that doesn’t follow the required format can all result in a rejected request. Checking and rechecking forms is crucial.
• If a request isn’t successful, sponsors are not always notified directly. Silence is meant to be read as a rejection, which leaves many employers unsure whether to resubmit or continue waiting.
• Once accepted, sponsors have just 72 hours (including weekends) to complete payment via the Worldpay link before the request expires.

Why Employers Are Turning to IAS for Priority Sponsor Requests

Employers can make CoS requests using our CoS allocation guide. However, HR capacity, other priority tasks and repeated bottlenecks have turned teams towards outside assistance. Using an immigration lawyer can be both cost effective and time saving.

Every working day, a strict cap of accepted priority requests means many sponsors are shut out simply because they applied too late, sent an incomplete form, or fell short of a technical eligibility rule. For a business waiting on skilled workers to start, a missed CoS slot can mean delayed start dates, lost candidates, and knock-on costs that dwarf the service fee itself.

Our Fixed-Fee Priority CoS Service Package Includes:

• Pre-submission eligibility review, so your request isn’t rejected on a technicality
• Preparation and quality-checking of your Worker and Temporary Worker priority request form
• Timed submission to the priority mailbox within the operating window
• Handling of the Worldpay payment process and 72-hour payment deadline
• Liaison on your behalf if the Home Office requests further information during casework

How IAS Can Help

Sponsor compliance and CoS management carry real commercial consequences when they go wrong. Our immigration advisers work with businesses of all sizes to keep sponsor licences compliant and CoS allocations flowing, including:

• Reviewing your SMS submission before it’s made, to reduce the risk of rejection
• Preparing and checking priority request forms and submission sheets
• Advising on whether your CoS need is genuinely eligible for priority (undefined vs defined)
• Submitting within the daily window on your behalf
• Broader sponsor licence support: renewals, audits, compliance visits, and Authorising Officer duties