The 28-day rule is the timing condition attached to the money you show for a UK Student visa, and it is responsible for a large share of financial refusals — not because students lack the money, but because they cannot prove they have held it in the right way, for long enough, at the right time. The rule sounds simple: the full amount you need to show must have been in your account for 28 consecutive days before you apply. Almost every refusal under it comes from a misunderstanding of what “held”, “consecutive” or “before you apply” actually means in UKVI’s measurement. This guide explains each part precisely, with dates, so you can plan backwards from your intended application day.
First, fix the amount the rule applies to. The 28 days are measured against your complete required total — course fees still to pay plus living costs, plus dependant amounts where relevant — calculated exactly as set out in How Much Money Do You Need to Show for a UK Student Visa?. If you have not run that sum yet, do it now, because every day-count in this guide is anchored to it.
What the rule actually requires
Three conditions must all be true at once. First, on every one of 28 consecutive days, the balance of your account must have been at least the full required total — not the average balance, not the balance on most days, but the closing position on each individual day. Second, the 28th day — the last day of the qualifying period — must fall no more than 31 days before the date you submit and pay for your online application. Third, the bank evidence you submit must prove both: it must show the balance across the period, ending on a date inside that 31-day window.
Put as a timeline: money reaches the required total on day 0 and stays at or above it. On day 28 the funds qualify. You may then apply from that point, but your evidence’s final date can be at most 31 days old when you apply — so the practical application window runs from the end of the 28 days to roughly a month afterwards, unless the money remains in place and you obtain fresh evidence covering a later 28-day period.
A worked example with real dates
Suppose your required total is £26,539 — a typical figure for a student outside London with a deposit already paid — and the money reaches that level in your account on 1 June, where it stays untouched.
The 28 consecutive days run from 1 June to 28 June. On 28 June the funds qualify, and a bank statement closing on or after that date can evidence a complete 28-day period. Your application must then be submitted while that evidence is still fresh: within 31 days of the evidence date. A statement closing on 28 June supports an application made up to 29 July.
Now suppose instead that on 20 June you pay a £300 bill from the same account and top it back up on 22 June. For two days the balance sat below £26,539, so the consecutive run is broken. The clock restarts from the day the balance returned to the full amount — 22 June — and the funds do not qualify again until 19 July. A two-day dip of £300 has cost a month. This is why advisers tell students to treat the account as frozen for the entire qualifying period, and to keep a buffer above the minimum if there is any chance of a charge, fee or direct debit touching it.
The lowest-balance trap and other ways the clock breaks
The qualifying test is applied to the lowest balance reached on each day, so the traps are all variations on the balance dipping, however briefly. Bank charges and interest deductions can do it without any action by you. A card payment authorised earlier but settled during the period can do it. If the account is not in pounds sterling, exchange-rate movement can do it: UKVI converts foreign currency using the rate on the application date, so a balance that equalled the required total when you deposited it may fall short in pounds by the time you apply — holding a margin above the minimum is the standard protection.
Moving money between your own accounts also breaks continuity unless each account’s evidence covers the full period with the combined balance never below the total — in practice, far simpler to consolidate the money in one account before the 28 days begin. Money in a parent’s account follows the same timing rules, with the consent letter and relationship evidence added. And if your balance qualifies but your application is delayed beyond the evidence’s 31-day life, the remedy is not to move the money: leave it in place and obtain a fresh statement, because the funds remain qualified for as long as the balance stays above the total.
Proving it: what the evidence must show
Your bank statement or letter must show your name (or your parent’s, with the consent and relationship documents), the account number, the balance across the full 28-day period, and the institution’s identity. Bank letters must confirm the funds have been held for the full period and are available; a letter showing only today’s balance proves nothing about the preceding 28 days. Where statements are electronic, they must meet UKVI’s requirements for authentication. If part of your funding is official sponsorship or a qualifying student loan, different evidence applies to that part, but the bank-held part must still satisfy the 28-day condition in full.
To confirm the total your 28 days are measured against, run your figures through the UK Student Visa Funds Calculator before you move or freeze any money — a qualifying period served against the wrong target is the most expensive mistake in this process, because it can only be fixed by serving another one. Once you are here and working part-time, the same date discipline applies to your hours: our Student Visa Work-Hours Checker regroups your shifts into Home Office Monday-to-Sunday weeks and flags any week that goes over your term-time cap.
Planning backwards from a course start date
The sensible sequence is: obtain your CAS, calculate the exact total, place the money in a qualifying account, serve the 28 days untouched, and apply promptly with fresh evidence. Visa processing time sits on top of this, and you cannot apply more than six months before your course starts if you are outside the UK, or three months if you are inside it — but the funds clock, not the application window, is usually the binding constraint for students who leave things late. If your course starts in September and your money only reaches the required level in mid-August, the 28 days can still be served — but a single dip, a slow statement or a request for further evidence leaves no slack at all.
Where the money is currently in the wrong place — an investment, a relative’s account that does not qualify, several scattered accounts — move it early enough that the transfer itself does not eat into your timeline, and remember that the qualifying period only begins once the full amount sits, settled, in the qualifying account. Finally, check the current rules on GOV.UK or with your university’s international advisers before relying on any timeline: this area of the rules is amended regularly, the living-cost rates rise on 30 November 2026, and your application is judged on the rules in force on the day you submit it. The UK Student Visa Funds Calculator uses the current and announced rates so your target figure — and therefore your 28-day clock — is built on the right number.
If the clock breaks: your realistic options
Discovering a dip in week three is a crisis, but it is not automatically a catastrophe, and the options are worth knowing in order. Restart and delay is the default remedy: leave the money untouched, let a fresh 28 days run, and apply later within your application’s overall window — viable whenever your course start date leaves room, and the reason advisers push students to assemble funds a full term before they intend to apply. Check whether another account already qualifies. A parent’s account, or another account of your own, may already have held the full amount for 28 days without your realising it counted — the qualifying period does not have to be in the account you first intended to use, as long as the holder, the balance and the evidence all meet the rules.
Re-examine the target itself. Some broken clocks are broken against a wrongly inflated figure: a deposit paid but not yet recorded on the CAS, an accommodation offset not claimed, a course length miscounted in months. Correcting the total downward, legitimately and with the university’s help in updating the CAS, can turn an unqualified balance into a qualified one instantly — which is another reason to have your university’s advisers verify your CAS and your calculation together. What you must not do is apply anyway and hope: the financial requirement is assessed mechanically from the evidence, caseworkers have no discretion to overlook a short period, and a refusal on finances costs the fee, the time, and — for students who declared it later — credibility in subsequent applications. A delayed application with a clean 28 days is better in every respect than a prompt one that fails on day twenty-six.
Applying again after a refusal: does the clock carry over?
If an application is refused for a reason unrelated to your funds — a CAS error, a credibility finding you are addressing, a document problem — and the money has simply stayed in the account throughout, the balance does not lose its qualified status: funds that have been continuously above the required total remain qualified, and a fresh application needs only fresh evidence, a statement closing within 31 days of the new application that shows a complete 28-day period. There is no requirement to move the money out and restart for form’s sake, and doing so would be actively harmful.
If the refusal was on the funds — the balance dipped, the period was short, the account did not qualify — then the correction starts a genuine new clock on the corrected arrangement, and the fresh 28 days must be served in full before the new application. Either way, the discipline is the same: whatever happens to the application, the money’s own timeline continues independently of it, and the students who recover fastest from a refusal are the ones who left the funds untouched while everything else was being fixed. Before any resubmission, have your university’s advisers check both the new evidence and the reason for the first refusal, because a second application that fixes the stated reason and nothing else is judged on the whole file again, not just on the point that failed.
Frequently asked questions
Does the 28 days have to end on the day I apply? No. The 28-day period must end no more than 31 days before your application date. You can apply any time within that window, or later if the money is still in place and you obtain fresh evidence covering a complete, more recent 28-day period.
What if my balance dipped below the total for one day? The consecutive run is broken and the clock restarts from the day the balance returned to the full required amount. There is no discretion in this: a one-day dip and a two-week dip have exactly the same effect.
Can I use two accounts together? Yes, funds can be spread across accounts in your name (or a parent’s, with the consent evidence), but the combined balance must stay at or above the total on every day of the 28 days, and you must evidence every account for the full period. One account is simpler and safer.
Does the rule apply to money in a foreign currency? Yes. The balance must convert to at least the required total in pounds, using the exchange rate on your application date, on every day of the period. Because rates move, hold a margin above the minimum if your account is not in sterling.
Can I spend the money after I apply? The requirement is assessed on the evidence and the period before application, but UKVI can verify funds with your bank during processing, and withdrawing the money before a decision risks refusal if the funds are found not to be genuinely available. Keep the money in place until your visa is decided.
My sponsor covers my fees. Does the 28-day rule still apply? It applies to whatever part of the requirement is met from bank-held funds. If official sponsorship covers everything and is properly documented on your CAS or in a sponsor’s letter, no bank period may be needed; if it covers only part, the remainder must satisfy the 28 days in full.