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The short answer
It depends on the country. The UK's Student visa rules count only the student's own money, a parent's (with a consent letter), a partner's, or official sponsorship, so a sibling's account does not count directly; a sibling helps by gifting money into the student's own account at least 28 days before applying, or paying fees to the university. The US asks for credible evidence that funds for the first year are readily available, from the student or a sponsor, and a sibling there usually shows statements, income and a sponsor letter.
Check whose money the country accepts
Before writing any sponsor letter, find out whether the destination counts a sibling's money at all. The rules differ more than most families expect.
| Destination | What the official guidance says | What a sibling can do |
|---|---|---|
| UK (Student visa) | Money can be yours, a parent's (with their letter of consent), a partner's, or from official financial sponsorship such as a government or university (GOV.UK, updated 31 Dec 2025). Siblings are not listed | Gift money into the student's own account in time for the 28-day rule, or pay tuition directly to the university |
| US (F-1) | Sufficient, readily available funds for the first year shown by credible documentary evidence; personal funds or sponsors; sponsor support is 'not a mere formality' (9 FAM 402.5) | Act as sponsor with statements, income evidence and a letter; the school checks support before issuing the I-20 |
| Canada and others | Check the immigration authority's own proof-of-funds page | See the Nigeria library guide below for Canada |
For Canada, the Nigeria library explains study permit proof of funds from Nigeria.
The UK: the 28-day rule and how a sibling fits
GOV.UK says a Student visa applicant needs the course fees for one academic year (shown on the CAS) plus living costs of £1,529 a month for up to nine months in London, or £1,171 a month outside London. The money must be held for at least 28 days in a row, and the end of that 28-day period must be within 31 days of the application. The evidence must show the student's name, the bank and the amount, and the account must give immediate access.
Because a sibling is not a listed source, putting the money in your own account in London and writing a sponsor letter does not meet the rule. The usual routes are:
- Gift it early. Transfer the money to the student's own account, in their name and under their control, so that the full amount sits there for 28 consecutive days before the statement date.
- Pay tuition to the university. Less money then needs to pass through the student's account. Ask the university how fees already paid will appear on the CAS, because the CAS is what the visa caseworker reads.
- Fund a parent. If a parent will hold the money in their own account, they must provide the consent letter GOV.UK describes. The money must really be theirs to give.
The Nigeria library covers the timing in the 28-day rule for Nigerians.
The US: what a sibling sponsor shows
The State Department's manual says the applicant must show funds for the first year's expenses, readily available, and that later years can come from the same or other identified reliable sources. Planned part-time work does not count. A sibling sponsor in the US typically prepares:
- A signed sponsor letter: who you are, your relationship, the amount you will provide each year and for how long, and your contact details.
- Bank statements showing the funds, with large recent deposits explained.
- Proof of income: employer letter, payslips or tax returns.
- Proof of your US status: passport, green card or visa.
- Relationship proof: both siblings' birth certificates showing the same parent or parents.
- Where the school or consulate asks, an affidavit of support. USCIS describes Form I-134 as showing that visa applicants have sponsorship; check the current edition on uscis.gov.
Mistakes that lead to refusals
- Money arriving in the student's account a few days before the statement date, so it has not been held for 28 days.
- A large unexplained deposit with no gift letter or transfer record.
- A sponsor letter promising support the statements cannot show.
- Names spelt differently across passports, birth certificates and bank records with no explanation.
Proving you are siblings
Nigerian birth records are often the weak point. Make sure both birth certificates name the same parent or parents, with consistent spellings. Where they do not, a sworn affidavit explaining the difference, and any older documents such as school records, help. Our guide to NPC birth registration explains certificates, and using a Nigerian account as proof of funds covers statement formats.
Worked example: UK, outside London
Example only. Your sister has a CAS for a one-year master's in Leeds with £16,000 tuition, of which £5,000 is paid. Living costs outside London are £1,171 × 9 = £10,539. If the CAS records the £5,000 as paid, she must show the £11,000 balance + £10,539 = £21,539 in her own account; confirm how the university records it. If she has £6,000, you gift £15,539, ideally with a margin for exchange movements and bank charges, so that it lands before the 28-day period starts. A short gift letter in her file helps if the source is questioned.
Where Pryme fits
If you are sending money to a sibling's Nigerian account, Pryme Send shows the rate and the fee before you approve, and Pryme partners with VerifyDoc.ai so you can generate a verifiable receipt for the transfer to keep with the visa file.
Questions people ask
Can my brother in the UK sponsor my UK student visa?
Not directly through his own account: GOV.UK lists your own money, a parent's, a partner's or official sponsorship. He can gift the money into your account at least 28 days before you apply, or pay fees to the university.
What should a sibling's sponsor letter for a US student visa include?
Your relationship, the amount and duration of support, your contact details, and attached bank statements, income proof and status documents.
How do I prove my sibling relationship for a visa?
Birth certificates for both of you showing the same parent or parents, with an affidavit to explain any spelling differences.
How much money do I need for a UK student visa outside London?
Course fees for one year plus £1,171 a month for up to nine months, according to GOV.UK as at October 2026. Check the page before applying.
Sources
- GOV.UK: Student visa, money you need · accessed Oct 2026
- GOV.UK: Financial evidence for Student and Child Student visa applicants (updated 31 Dec 2025) · accessed Oct 2026
- US Department of State: 9 FAM 402.5 Students · accessed Oct 2026
- USCIS: Form I-134 · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.