How Bank Account Switching Works for UK Customers
A full bank-account switch uses the Current Account Switch Service to move eligible payments, redirect incoming money, transfer the balance and close the old account on an agreed date. The switch process is separate from any cash incentive offered by the destination bank.
A full CASS switch is built around a seven-working-day timetable
The Current Account Switch Service says customers can choose an agreed switch date and the standard full switch then follows a seven-working-day process. Account opening and identity checks can happen before the formal switch itself begins.
Put the agreed switch date beside salary and essential bill dates before confirming the move. The service is designed to handle payment migration, but good timing reduces the practical consequence of any employer cut-off, new mandate or card-subscription issue.
Keep the switch confirmation and the date the new provider accepted the instruction. These records become useful if a payment is delayed or the old account does not close as expected.
For 'A full CASS switch is built around a seven-working-day timetable', apply the rule to the exact amount, date, provider and payment or account type involved. The page-specific control is that CASS mechanics must remain separate from provider promotions, payroll cut-offs and the destination bank's own overdraft decision. Save the live source or provider wording used for section 1, because a small change in timing, eligibility, fee, account status or support route can change the practical result without changing the broad banking label.
Use a switch where salary still goes to the old details or a new payment instruction was created inside the seven-day window. Check whether CASS redirection or a manual update solves the problem.
Eligible Direct Debits and standing orders move automatically
CASS transfers regular outgoing payments such as Direct Debits and standing orders to the destination account. This removes the need to recreate every established instruction manually.
Do not create new payment instructions on the old account during the final seven working days before the switch date unless the provider or biller confirms how they will be handled. New arrangements created too late can miss the migration dataset.
After completion, compare the destination account with a saved list from the old account. The first post-switch bill cycle is the right time to catch a missing or altered instruction.
For 'Eligible Direct Debits and standing orders move automatically', apply the rule to the exact amount, date, provider and payment or account type involved. The page-specific control is that CASS mechanics must remain separate from provider promotions, payroll cut-offs and the destination bank's own overdraft decision. Save the live source or provider wording used for section 2, because a small change in timing, eligibility, fee, account status or support route can change the practical result without changing the broad banking label.
Use a switch where salary still goes to the old details or a new payment instruction was created inside the seven-day window. Check whether CASS redirection or a manual update solves the problem.
Incoming payments are redirected and senders can be told the new details
Salary, pension, benefits and other incoming payments sent to the old account can be redirected to the new account after a full switch. CASS also supports updating payment originators with the new details.
Redirection is a safety net rather than a permanent payroll strategy. Tell important senders the new sort code and account number directly once the destination account is open.
Check the first salary after the switch and keep the payslip. If wages are late, you need to distinguish an employer payroll problem from a switching or redirection problem.
For 'Incoming payments are redirected and senders can be told the new details', apply the rule to the exact amount, date, provider and payment or account type involved. The page-specific control is that CASS mechanics must remain separate from provider promotions, payroll cut-offs and the destination bank's own overdraft decision. Save the live source or provider wording used for section 3, because a small change in timing, eligibility, fee, account status or support route can change the practical result without changing the broad banking label.
Use a switch where salary still goes to the old details or a new payment instruction was created inside the seven-day window. Check whether CASS redirection or a manual update solves the problem.
The old account closes and the balance moves
A full CASS switch closes the source current account on the agreed switch date and transfers the balance to the destination provider. That closure distinguishes a full switch from a manual move where both accounts remain open.
Review pending card payments, cheques, overdraft use and cash access before the closure date. Those items can have their own timing even when the core switch process is standardised.
If you depend on an overdraft, do not assume the facility transfers. The new bank makes its own borrowing decision, so confirm the destination overdraft before scheduling the old account to close.
For 'The old account closes and the balance moves', apply the rule to the exact amount, date, provider and payment or account type involved. The page-specific control is that CASS mechanics must remain separate from provider promotions, payroll cut-offs and the destination bank's own overdraft decision. Save the live source or provider wording used for section 4, because a small change in timing, eligibility, fee, account status or support route can change the practical result without changing the broad banking label.
Use a switch where salary still goes to the old details or a new payment instruction was created inside the seven-day window. Check whether CASS redirection or a manual update solves the problem.
The Current Account Switch Guarantee covers switch-caused problems
The destination provider is responsible for correcting problems caused by the switch under the Current Account Switch Guarantee and for refunding qualifying charges or interest caused by a switch failure.
Keep evidence of the switch date, affected payment and any financial loss. A switch-caused missed payment is different from a biller collecting the wrong Direct Debit amount or an employer failing to send salary on time.
Use the destination bank as the first escalation point for a problem with the switch itself. Separate provider-promotion disputes, payment errors and payroll failures into their own complaint routes.
For 'The Current Account Switch Guarantee covers switch-caused problems', apply the rule to the exact amount, date, provider and payment or account type involved. The page-specific control is that CASS mechanics must remain separate from provider promotions, payroll cut-offs and the destination bank's own overdraft decision. Save the live source or provider wording used for section 5, because a small change in timing, eligibility, fee, account status or support route can change the practical result without changing the broad banking label.
Use a switch where salary still goes to the old details or a new payment instruction was created inside the seven-day window. Check whether CASS redirection or a manual update solves the problem.
BankOfferScout editorial view
For How Bank Account Switching Works, BankOfferScout treats the reader’s actual cash-flow scenario as the anchor. We compare the outcome around cost, process, eligibility and the practical consequences for the reader’s money, because the largest headline figure is not automatically the feature that matters most in everyday use.
For How Bank Account Switching Works, we give more weight to repeatable value than to a prominent marketing claim. Our second test is resilience: would the choice still make sense after allowing for a small-looking rule or limit becoming expensive when it clashes with real account use? That question often exposes the difference between an attractive headline and durable value. Here, the practical reference point is the reader’s actual cash-flow scenario.
Before acting on How Bank Account Switching Works, verify provider fees, limits, eligibility, processing times, security controls and product availability using the relevant provider page and the latest formal terms for the product or process. If the answer depends on a rule outside the provider, confirm it through the relevant regulator, scheme operator or official guidance. BankOfferScout supplies the decision framework rather than freezing live product data in time.
Sources and related guides
Bank-switching guidance was checked on 30 September 2026 against live BankOfferScout and CASS material. Future updates should verify the seven-working-day timetable, payment migration, incoming-payment redirection, closure and guarantee wording from the scheme operator while keeping provider incentive rules separate.
For 'Sources and related guides', apply the rule to the exact amount, date, provider and payment or account type involved. The page-specific control is that CASS mechanics must remain separate from provider promotions, payroll cut-offs and the destination bank's own overdraft decision. Save the live source or provider wording used for section 6, because a small change in timing, eligibility, fee, account status or support route can change the practical result without changing the broad banking label.
Use a switch where salary still goes to the old details or a new payment instruction was created inside the seven-day window. Check whether CASS redirection or a manual update solves the problem.
- BankOfferScout - How Bank Account Switching Works
- Current Account Switch Service - switching process
- Current Account Switch Service - about the service
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