Comprehensive Guide to Source of Funds (SOF) for UK Student Visa & CAS Shield

Comprehensive Guide to Source of Funds (SOF) for UK Student Visa & CAS Shield

Mastering the Source of Funds (SOF) Requirement

A Comprehensive Guide for UK Student Visa (CAS Shield) Compliance

Securing an unconditional offer from a UK university is a major milestone. However, the journey to your Student Visa involves a critical "gatekeeper" process: CAS Shield. One of the most common reasons for delays or visa rejections isn't a lack of money, but a failure to adequately explain the Source of Funds (SOF).

This guide provides an exhaustive look at how to satisfy the "Financial Credibility" checks required by both UK universities and the Home Office for the 2026 intake.

1. What is CAS Shield and Why Does it Matter?

CAS Shield (powered by Enroly) is a digital platform used by UK universities to vet students before issuing a Confirmation of Acceptance for Studies (CAS). Since the university acts as your "Sponsor," they are held accountable by the UK Home Office for your financial legitimacy.

The "Financial Credibility" Rule: You must prove not just that you have the money, but that the money is legitimately yours and was not "parked" (borrowed temporarily) just for the application.

2. The 2026 Financial Requirements: The Numbers

Before writing your explanation, you must calculate your exact requirement based on 2026 UKVI figures:

CategoryInside LondonOutside London
Tuition FeesFull first year (minus any deposit/scholarship)
Monthly Living Cost£1,334 per month£1,023 per month
Total Maintenance (9 Mos)£12,006£9,207

3. The Golden Rules of Financial Evidence

  • The 28-Day Rule: The full amount must be in your account for 28 consecutive days. If the balance drops even £1 below the required amount for a single day, the clock resets.
  • The 31-Day Rule: Your bank statement must be dated no more than 31 days before the date you submit your visa application.
  • Ownership: Funds must be in your name or your parents’/legal guardian’s name. Funds in the name of siblings or grandparents are not accepted directly.

4. Explaining "Large Deposits"

A "Large Deposit" is generally any credit that exceeds 50% of your sponsor's usual monthly income. These must be explained in your SOF letter with evidence:

  • Salary Savings: Provide 3–6 months of payslips and 3 years of ITRs.
  • Property Sale: Provide the Sale Deed and proof of payment from the buyer.
  • FD Liquidation: Provide the Fixed Deposit advice/receipt showing the transfer into the savings account.
  • Agriculture Income: Provide Government-issued income certificates (e.g., J-Forms).

5. Sample: Source of Funds Explanation Letter

To, UK Visas and Immigration / [University Name]

Subject: Detailed Explanation of Source of Funds – [Your Name]

Dear Sir/Madam,

I am writing to provide a transparent breakdown of the finances supporting my application for the [Course Name] at [University Name].

1. Financial Calculation (in GBP):
Remaining Tuition: £[Amount]
Living Expenses: £[Amount]
Total Funds Required: £[Total]

2. Source of Large Deposits:
- Deposit of ₹[Amount] on [Date]: Originated from the maturity of a Fixed Deposit (No: [Number]).
- Deposit of ₹[Amount] on [Date]: Gift from my father, [Name], from his annual business bonus.

I confirm that these funds are genuinely available and were obtained through legitimate means. All supporting documents are attached.

Yours Sincerely,
[Your Full Name]
[Passport Number]

6. Pro-Tips for Success

  1. Translation: Any document not in English must have a certified translation.
  2. Account Type: Only use Personal Savings or Current Accounts. Avoid Business Accounts unless specifically allowed by university policy.
  3. Digital Verification: Ensure your bank statement has a QR code or the bank’s contact details for verification.

Need Assistance?

At Smile Foreign Education, we perform a mock-audit of your documents before you upload them to CAS Shield to ensure a 100% success rate.

Contact us at smile.ahm@gmail.com or visit our portal at support.smiledu.in