Switching bank accounts in the UK has never been easier thanks to the Current Account Switch Service (CASS), which guarantees your switch will complete within seven working days. The process is free, secure, and handles all the complex transfers automatically - plus many banks offer generous switching bonuses of up to £200 in 2026.

Whether you're fed up with poor customer service, looking for better interest rates, or tempted by switching incentives, moving your money doesn't have to be a headache. The key is understanding how the switching process works and choosing the right account for your needs.

What is the Current Account Switch Service (CASS)?

The Current Account Switch Service is a free service that makes switching bank accounts straightforward and reliable. Launched in 2013, CASS handles all the technical aspects of moving your banking relationships from one provider to another.

When you use CASS, your new bank takes responsibility for:

  • Transferring your balance to your new account
  • Moving all regular payments like direct debits and standing orders
  • Redirecting any payments sent to your old account for 13 months
  • Providing a switching guarantee that protects you from charges if anything goes wrong

The service covers most UK current accounts, including those from high street banks, building societies, and many digital banks. Over 40 providers participate in the scheme, making it the standard way to switch accounts.

Take Action: Check if both your current bank and target bank participate in CASS by visiting the official switching service website.

How to switch bank accounts step-by-step

Switching your bank account through CASS follows a clear seven-step process that takes exactly seven working days to complete.

Step 1: Choose your new bank account
Research different accounts to find one that suits your needs. Consider factors like monthly fees, interest rates, overdraft costs, and any switching bonuses on offer.

Step 2: Apply for your new account
Complete the application with your chosen bank. You'll need proof of identity (passport or driving licence) and proof of address (recent utility bill or council tax statement). Many banks now offer online applications that can be completed in 15-20 minutes.

Step 3: Start the switch with your new bank
Once your new account is approved, your new bank will ask if you want to use CASS. Provide them with details of your old account, including the sort code and account number.

Step 4: Choose what to transfer
Decide which direct debits, standing orders, and regular payments you want to move. You can transfer all of them or select specific ones. Your new bank will provide a checklist to help you decide.

Step 5: Set your switch date
Your new bank will suggest a switch date, typically 7-10 working days from when you start the process. This gives you time to prepare and ensure any important payments are covered.

Step 6: Inform relevant parties
While CASS handles most transfers automatically, you should personally notify your employer about your new account details for salary payments. You might also want to update subscription services and online retailers.

Step 7: Monitor the switch completion
On your switch date, your old account will close and all arrangements will transfer to your new account. Your new bank will confirm when everything is complete.

What transfers automatically with CASS?

The Current Account Switch Service automatically handles most of your banking relationships, but it's important to understand exactly what moves and what requires manual action.

Automatically transferred:

  • Your account balance (transferred on switch completion day)
  • Direct debits and standing orders you've selected
  • Regular incoming payments like benefits or pensions
  • Card payment arrangements for things like Amazon Prime or Netflix
  • Any pending transactions that haven't yet cleared

Requires manual action:

  • Salary payments (inform your HR department)
  • Benefits payments (notify relevant government departments)
  • Savings accounts and ISAs
  • Credit cards and loans (these stay with your old bank)
  • Investment accounts or pension arrangements

Your old account number will redirect payments to your new account for 13 months, giving you plenty of time to update anyone who might still be using your old details. However, it's better to proactively inform important payees rather than rely on the redirection service.

Take Action: Make a list of all your regular income sources and subscription services before starting your switch, so you can update them systematically.

How long does bank switching take?

The CASS guarantee ensures your switch completes within seven working days from the date you choose. This timeline is reliable and legally protected, with compensation available if delays occur.

Here's the typical timeline:

  • Day 1: You start the switch with your new bank
  • Days 2-6: Background preparation and verification
  • Day 7: Switch completes, old account closes, new account becomes active

The seven-day period only counts working days (Monday to Friday), excluding weekends and bank holidays. If you start a switch on a Wednesday, it would complete the following Wednesday.

Some banks offer faster switching outside of CASS, with digital banks like Monzo sometimes completing switches in 2-3 days. However, these faster services might not include all the protections and guarantees that come with the official switching service.

Bank switching bonuses and incentives in 2026

Many UK banks offer attractive incentives to encourage new customers to switch accounts. These bonuses can make switching financially rewarding, even if you're relatively happy with your current bank.

Current switching offers include:

  • Cash bonuses: Typically £100-£200 for switching with qualifying direct debits
  • Interest rate boosts: Enhanced rates for the first year after switching
  • Fee waivers: Free banking or reduced overdraft charges for new customers
  • Cashback rewards: Higher rates on purchases for the first few months

Popular switching bonuses in 2026 include offers from Santander (£150), First Direct (£200), and various building societies. However, these offers change frequently and often have strict qualifying criteria.

Always read the terms carefully. Most bonuses require you to switch using CASS, pay in a minimum monthly amount (often £1,000-£2,000), and set up at least two direct debits. Some banks also require you to stay with them for a minimum period or the bonus must be repaid.

Digital banks vs high street banks for switching

The choice between digital banks and traditional high street banks depends on your banking preferences and lifestyle needs.

Digital banks advantages:

  • Often faster switching processes (2-3 days vs 7 days)
  • Superior mobile apps with real-time notifications
  • Better budgeting tools and spending insights
  • No physical branch maintenance costs means better rates
  • 24/7 customer support through in-app chat

High street banks advantages:

  • Physical branches for complex enquiries
  • Established relationships for mortgages and loans
  • More comprehensive business banking services
  • Wider ATM networks and international presence
  • Face-to-face customer service

Popular digital options include Monzo, Starling Bank, and Revolut, while traditional providers like Lloyds, Barclays, and HSBC continue to invest in digital services. Many customers now use a hybrid approach, keeping a digital bank for day-to-day spending and a traditional bank for savings and major financial products.

The switching process works the same way regardless of bank type, as both digital and traditional banks participate in CASS.

What to do if something goes wrong

While bank switching usually works smoothly, problems can occasionally occur. CASS provides strong consumer protection to ensure you're not left out of pocket.

Common issues include:

  • Direct debits not transferring correctly
  • Payments being sent to your old account after the redirection period
  • Delays in closing your old account
  • Missing transactions or incorrect balances

If something goes wrong, contact your new bank immediately. They're responsible for resolving switching problems under the CASS guarantee and must:

  • Refund any charges caused by their errors
  • Pay £25 compensation for each payment that goes wrong
  • Fix problems quickly and communicate progress clearly

Keep detailed records of your switch, including confirmation emails and account statements. This documentation will help resolve any disputes quickly.

For serious problems, you can escalate to the Financial Ombudsman Service, which provides free, independent dispute resolution for UK banking customers.

Timing your bank switch strategically

Choosing the right time to switch can minimise disruption and maximise benefits. Consider these timing factors:

Best times to switch:

  • Early in the month when fewer direct debits are due
  • After receiving your monthly salary
  • When you have a comfortable buffer in your current account
  • During quieter periods when you can monitor the process closely

Avoid switching:

  • Just before major direct debits like mortgage payments
  • During holiday periods when customer service might be limited
  • When you're expecting important one-off payments
  • In December when many businesses have reduced staffing

Plan your switch to ensure you have alternative payment methods available during the transition. Keep your current debit card active until you're certain the new account is working properly.

Consider seasonal factors too. Many banks launch attractive switching offers in January and September, coinciding with people's fresh start mentality after New Year and the end of summer holidays.

Conclusion

Switching bank accounts in the UK is straightforward and secure thanks to the Current Account Switch Service, which guarantees completion within seven working days and provides strong consumer protection. With attractive switching bonuses available and the process being completely free, there's never been a better time to move your money if you're unhappy with your current bank.

The key to a successful switch is preparation - research your options thoroughly, understand the timeline, and keep track of all your direct debits and regular payments. Whether you choose a digital bank for their innovative features or stick with a traditional provider for their branch network, the switching process works the same way.

Remember that switching isn't just about grabbing a quick bonus. Focus on finding an account that genuinely meets your long-term needs, offers good value, and provides the customer service level you expect. For more guidance on choosing the right account, check out our comprehensive guide to UK banking and explore savings options to make the most of your money.

The information in this article is for educational purposes only and does not constitute financial advice. Always consult a qualified financial adviser before making financial decisions.

Frequently Asked Questions

How much does it cost to switch bank accounts in the UK?

Bank switching is completely free when you use the Current Account Switch Service (CASS). There are no charges for the switching process itself, and your new bank cannot charge you for setting up the account. However, check if your new account has monthly fees or other ongoing charges.

Can I switch if I have a poor credit score?

Yes, you can usually switch bank accounts even with poor credit. Basic bank accounts are available for people with credit difficulties, and the switching process doesn't require a credit check. However, you might not qualify for accounts with overdrafts or premium features.

What happens if I change my mind after starting a switch?

You can cancel a CASS switch up to one working day before your chosen switch date by contacting your new bank. After this point, the switch will complete automatically. If you want to switch back, you'll need to start a new switching process.

Do I need to tell my employer about my new bank details?

Yes, you should inform your employer about your new account details for salary payments. While CASS redirects payments to your old account for 13 months, it's better to update payroll directly to avoid any potential delays or complications.

Can I keep my old account open when I switch?

No, when you use CASS to switch, your old current account will close automatically on the switch completion date. If you want to keep banking with your old provider, you'll need to open a new account with them separately after the switch completes.