UK CAS Errors: What Students Should Check Early
Common CAS errors that delay UK Student visa applications and how to spot them early — covering personal details, course information, and fee accuracy.
CASCAS errorsstudent visasponsoradmissionsUpdated 12 July 2026 Your Confirmation of Acceptance for Studies is the document that connects you, your university, and your course to the UKVI visa system. Every field on that CAS statement is cross-checked against your passport, your financial evidence, and your visa application form. An error in any field — name, course dates, fees, English language classification — can delay your visa decision by weeks or result in outright refusal. The critical insight is that CAS errors are not rare. Admissions teams process thousands of CAS statements each year, and data entry mistakes happen. The students who avoid visa delays are the ones who treat their CAS as a document to be audited, not a formality to be filed.
Name and passport mismatches
The most common CAS error is a discrepancy between the name on the CAS and the name in your passport. This sounds trivial, but a single missing middle name, a swapped given name and family name, or a hyphen instead of a space is enough for the UKVI caseworker to flag a mismatch and pause or refuse your application.
· Open your passport. Copy the name exactly as it appears in the machine-readable zone at the bottom of the photo page. That is the name your CAS must match. · Check the order: your family name and given name must appear in the same fields and the same sequence as in your passport. If your passport lists “Maria Elena Gomez Rodriguez” as given names and “Gomez Rodriguez” as the surname, your CAS must do the same. · If you have multiple passports, ensure the CAS matches the passport you will use for the visa application. · Verify your date of birth, nationality, and passport number on the CAS. A single-digit error in the passport number has caused refusals.
Incorrect course dates
Course start and end dates on the CAS determine the length of visa you will be granted. If the start date on your CAS is earlier than the actual course start, you lose visa days. If it is later, you may not be able to enrol. And if the end date is wrong, your visa grant length — and your Graduate Route eligibility window — will be off.
· Compare the course dates on your CAS with your unconditional offer letter. If the offer letter gives a start date of 22 September 2027, your CAS should show the same date. · Pay attention to the course end date. For a twelve-month master’s, this is typically the final submission or examination date, not the graduation ceremony date. The end date affects the duration of leave granted and the four additional months of wrap-up period. · If your course includes a pre-sessional English programme or a foundation year, check that the CAS covers the full duration including the additional component.
Fee discrepancies
Your CAS lists the tuition fees for the first year of your course and any fees already paid. These numbers must be consistent with your financial evidence. If your CAS says the fee is £18,500 but your bank statement shows you holding funds based on a fee of £17,500, the caseworker will calculate a shortfall — and a shortfall leads to refusal.
· Check that the tuition fee on the CAS matches the fee on your offer letter and your most recent fee communication from the university. Fees sometimes change between offer and CAS issuance. · Verify the “course fees paid” field. If you paid a deposit of £3,000, the CAS must state that amount. If it shows zero, the caseworker will require evidence of the full fee amount, not the amount net of deposit. · If you are a sponsored student, check that the sponsor details and the amount of sponsorship are correctly recorded on the CAS. An incorrect sponsorship amount can create an artificial shortfall in your financial evidence.
English language recording errors
Your CAS contains a field that tells UKVI how you met the English language requirement — whether through a Secure English Language Test like IELTS, a prior qualification taught in English, or an assessment by the university. An incorrect entry in this field can cause a refusal on English language grounds even if you have met the requirement.
· If you used an IELTS, TOEFL, or PTE score, check that the test type, score, and date are correctly entered — and that the test is on the current approved list of SELT providers. · If you are exempt because your undergraduate degree was taught in English, check that the CAS states the exemption basis clearly. A missing or vague exemption entry leads to a request for additional evidence, which delays processing. · If you completed a pre-sessional English course at the same university, the CAS must record the pre-sessional outcome and link it to the main course. A broken or missing link is a common refusal point for pre-sessional pathway applicants.
Course-level classification errors
The CAS classifies your course as NQF 3, 4, 5, 6, or 7, which determines the visa conditions that apply. An incorrect classification is unusual but serious when it happens — it can result in the wrong visa conditions being applied.
· For a bachelor’s degree, the classification should be NQF 6. · For a master’s degree, it should be NQF 7. · If your CAS shows a lower classification, your working-hours restriction may be affected and your Graduate Route eligibility may be compromised. Flag this immediately with the university.
How to get CAS errors corrected
The correction process is straightforward but adds time to your visa timeline — typically three to ten working days depending on the university’s responsiveness. This is why checking early matters.
· Email your admissions contact or the CAS issuance team directly with a clear, itemised list of every error you have found. Do not call with a vague “there are mistakes” — list each field, the current incorrect value, and the correct value it should show. · Attach supporting documents — your passport photo page, your offer letter, your IELTS report — for each error you are flagging. · Ask for confirmation that the corrected CAS has been updated in the UKVI Sponsor Management System, not just in the university’s internal records. A correction that only lives in the admissions system does not help the visa officer. · Do not submit your visa application until you are holding the corrected CAS with all errors resolved.
What this means for your shortlist
Universities vary in how quickly and accurately they process CAS statements. If you are choosing between two offers and one university has a reputation for slow or error-prone CAS issuance, that should weigh in your decision. A delayed CAS means a delayed visa application, and a delayed visa application means you risk missing your course start date.
Before you submit the course-options form
· Ask each university on your shortlist about their CAS issuance timeline. Some issue CAS within five working days of accepting an unconditional offer; others take three weeks or more. · Check whether the university gives you the CAS data in advance to review before it is submitted to UKVI. This pre-review step — offered by some universities — lets you catch errors before they enter the UKVI system. · Know your passport details, course details, fee amount, and English language qualification by heart before the CAS arrives. You cannot check what you do not know.
FAQ
Q1: Who is responsible for CAS errors — the university or the student?
The university issues the CAS and is responsible for its accuracy. But the student is responsible for checking it before using it for a visa application. If you submit a visa application with an erroneous CAS, UKVI holds you accountable. Check it.
Q2: How long does it take to get a CAS error corrected?
Typically three to ten working days from the date you report the error to the university. During peak periods — August and September — it can take longer. This is why you should check your CAS as soon as you receive it and request corrections immediately if needed.
Q3: Can I submit my visa application with a small CAS error and get it corrected later?
No. Submitting an application with an incorrect CAS invites refusal. Once the application is submitted, the CAS cannot be amended. You must have a corrected CAS before you submit.
Q4: What if the course start date on my CAS has already passed?
If the start date on your CAS has passed and you have not yet enrolled, your CAS may no longer be valid. Contact the university immediately. They may be able to issue a new CAS with an updated start date or add a sponsor note extending the latest acceptable arrival date.
Q5: Does the university see the same CAS data that UKVI sees?
Yes and no. The university enters data into the Sponsor Management System. UKVI extracts that data when processing your application. If the university corrects an error in its internal admissions system but does not update the SMS, the correction will not reach UKVI. Always ask for confirmation that the SMS record has been updated.
CAS processes and UKVI requirements cited in this guide reflect UKVI Sponsor Guidance and common university practices as of mid-2026. Specific CAS fields, processing timelines, and correction procedures vary by institution and UKVI policy. Always follow the instructions provided by your university’s CAS issuance team and refer to current UKVI Student route guidance.
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