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SWITCHING RESEARCH

Bank Switching Eligibility Explained for UK Accounts

BankOfferScout Research Desk · Updated October 2026 · United Kingdom
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Eligibility has two layers: whether the account can use CASS at all, and whether the customer qualifies for a specific bank's promotion. Mixing those two questions is a common reason people expect a bonus they cannot receive.

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Which accounts can use the Current Account Switch Service

CASS can be used to switch current accounts between participating banks and building societies. Savings accounts and ISAs are not part of the service. The donor and receiving institutions both need to participate, and the receiving bank must be willing to open the destination current account.

A joint account can be switched only to another joint account and both parties must agree. CASS does not convert a joint account into a sole account. Sole-to-joint changes are also not something to assume will be handled as an ordinary switch, so confirm the receiving bank's process before applying.

The account details should be accurate at the old bank before the switch starts. Differences in name, address or other identifying information can cause delays. If you recently changed your name or moved home, update the donor bank first and wait for the record to be corrected. Business accounts have their own CASS eligibility rules and should not be inferred from a personal-account guide. This page is written for personal current accounts, so unusual account types should be checked directly with the receiving bank before a closure date is agreed.

Can you switch while overdrawn

CASS says an overdrawn current account can be switched, but the overdraft itself does not automatically transfer. You need to agree any new overdraft facility with the receiving bank under its normal lending criteria. The new bank may also offer a way to help repay the old overdraft, but that is not guaranteed.

If no new overdraft is agreed, you need another arrangement to repay the debt before or as part of the switch. Do not assume that a £1,000 limit at the old bank creates a £1,000 limit at the new bank. The receiving bank can approve a smaller amount or decline the facility.

Before switching an overdrawn account for a cash bonus, compare the interest and fees as well as the incentive. A £200 bonus can be poor value if the new overdraft is materially more expensive or too small for your normal cash flow. If the old overdraft is large, request the new lending decision before committing to the closure date. A failed or smaller overdraft application can materially change whether the switch is affordable.

Promotional eligibility has separate history tests

Even if the account is perfectly eligible for CASS, the cash offer can be unavailable. Santander currently excludes customers who held a Santander current account on 1 January 2026 and anyone who previously received a Santander switcher incentive. NatWest has a separate current-account holding date and previous NatWest Group incentive rule.

first direct currently restricts its offer to new customers who have not previously held a first direct product and excludes people who opened an HSBC current account on or after 1 January 2018. Lloyds excludes customers with certain recent Lloyds Group switch-incentive history and applies the history rule to joint-account parties.

This means "I can switch" and "I can get the bonus" are different answers. Check the exact promotional exclusions before closing a useful donor account. If you are unsure about old banking history, search statements or email records and ask the provider rather than relying on a vague memory.

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Receiving-account eligibility can add another filter

The destination account itself can have age, residency, income or credit requirements. Packaged and premium accounts can require monthly fees or higher income. Overdraft applications can involve credit checks even when the basic current account is accepted.

Lloyds' current £200 offer, for example, applies to selected Club Lloyds and Premier accounts rather than every Lloyds current account. Santander's current £240 promotion uses the Everyday Current Account and also requires a Santander Regular Saver to be funded. The promotion is therefore tied to a specific product combination.

Check whether the account remains suitable if the bonus were zero. If the bank rejects the destination account or offers a different account not included in the promotion, do not assume the cash offer follows automatically. If the bank opens a basic account instead of the promoted account, pause and confirm whether the switch incentive still applies before continuing. Promotional eligibility is normally tied to named receiving products, not to every current account offered by the bank.

A five-minute eligibility check before applying

Confirm that the donor bank participates in CASS, that the receiving bank accepts the type of account you want to move and that a joint account is going to another joint account where relevant. If overdrawn, settle how the debt will be handled before selecting a switch date.

Next check your personal history against the promotion: previous accounts with the bank, previous switching bonuses, related group brands and any date-based exclusions. Then check the receiving account's own eligibility and monthly fee.

Finally, verify the donor account already contains the Direct Debits or standing orders required by the offer. Once those checks are complete, save the terms and apply. This order avoids starting a full account closure process before discovering a preventable eligibility problem. Add the offer-payment history of any joint holder to the checklist as well, because one person's previous incentive can affect a joint-account application under some banks' rules.

BankOfferScout editorial view

For Bank Switching Eligibility Explained, BankOfferScout treats whether every required condition is realistic before you start as the anchor. We compare the outcome around eligibility, deadlines, switching mechanics and the ongoing value of the destination account, because the largest headline figure is not automatically the feature that matters most in everyday use.

For Bank Switching Eligibility, 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 starting a process before confirming a condition that later disqualifies you? That question often exposes the difference between an attractive headline and durable value.

The last step is freshness. Confirm exclusions, pay-ins, account history and deadlines on the provider switching page, incentive terms and destination-account tariff; where a scheme, tax or regulatory rule matters, use the Current Account Switch Service or another authoritative process source as well. The final application, transfer or switch should always use current information. For Bank Switching Eligibility Explained, apply it to whether every required condition is realistic before you start rather than a generic best-case example.

This article uses current primary switching sources checked on 30 September 2026. Offer-specific rules can change quickly, so application-day provider terms should be saved and used for any later eligibility dispute. CASS process rules should be checked against the Current Account Switch Service rather than inferred from promotional bank pages. Eligibility reviews should separately test CASS eligibility, destination-account acceptance and promotional history. This prevents a customer who can technically switch from being described as automatically entitled to a cash incentive. Where eligibility depends on older account history, record the exact cut-off date and banking group in the article. A generic statement such as 'new customers only' is not precise enough when a provider uses a dated exclusion or includes sister brands.

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