Chelsea Building Society: YBS Accounts, Rates & Customer Help
If you still have a Chelsea Building Society savings account or mortgage, the important point is that Chelsea has not become a separate new bank. Chelsea Building Society and “the Chelsea” are trading names of Yorkshire Building Society (YBS), following the merger of the two societies in 2010.
Existing Chelsea accounts continue to have dedicated Chelsea servicing pages, rates and support routes. However, Chelsea currently does not offer new savings or mortgage products to new customers; people looking for a new account or mortgage are directed to Yorkshire Building Society.
Meaningful editorial review: 18 September 2026. Existing-account rates, mortgage rates, service hours and product procedures can change. Verify important information on the live Chelsea/YBS website before moving money or changing a mortgage.
Chelsea Building Society: Quick Answers
What Are You Trying to Do?
Use the Chelsea savings page and its current-rates information for withdrawn products.
Check rate guidanceUse Chelsea’s own online-account help rather than registering as a brand-new YBS customer unnecessarily.
Open account-access helpChelsea still provides mortgage servicing and existing-customer product-switch routes.
Manage a Chelsea mortgageChelsea currently has no savings products for new customers, so compare YBS products instead.
See the correct routeAn inactive account does not automatically mean the money is lost.
Open inactive-account guidanceChelsea customers can use eligible Yorkshire Building Society branches and agencies.
Find branch guidanceIs Chelsea Building Society Still Separate From Yorkshire Building Society?
Chelsea Building Society has a long history of its own, but it is no longer a separate building society in the way it was before 2010. The official Chelsea legal information states that Chelsea Building Society and the Chelsea are trading names of Yorkshire Building Society.
The merger took effect on 1 April 2010. Chelsea continues as a recognisable servicing brand for existing accounts, which is why customers can still find a dedicated Chelsea website area, Chelsea account forms, existing-account rates and Chelsea mortgage support within the YBS website.
Official Chelsea Chelsea Building Society About Us
After opening this link:
- Read the Chelsea history section to confirm the 1 April 2010 merger with Yorkshire Building Society.
- Use the current Chelsea navigation for an existing Chelsea savings or mortgage account.
- Follow the Yorkshire Building Society link if you are looking for products currently available to new customers.
- For regulatory information, use the Chelsea legal page rather than relying on an old pre-merger document.
Can You Open a New Chelsea Building Society Account in 2026?
Not through the current Chelsea product range. Chelsea’s official savings page states that it does not currently have savings products available for new customers. Its mortgage page gives the same practical direction for new mortgage applicants and sends them to Yorkshire Building Society.
If you already have Chelsea savings
- Keep using Chelsea account servicing.
- Check the rate applying to your exact withdrawn account.
- Use Chelsea online access where your account supports it.
- Use YBS branches and agencies when branch service is permitted.
- Review maturity options when a fixed account reaches its end date.
If you want to open savings now
- Go to Yorkshire Building Society’s current savings range.
- Compare live AER, access rules and minimum balances.
- Check whether loyalty eligibility applies because of an existing Chelsea account.
- Read the current YBS Product Terms before applying.
- Do not assume a current YBS product has the same terms as your old Chelsea account.
New products Yorkshire Building Society Official Website
After opening this link:
- Choose Savings or Mortgages according to what you want to open.
- Compare current YBS products rather than looking for a discontinued Chelsea new-customer product.
- If you already hold a Chelsea product, check whether it helps you qualify for a YBS loyalty account.
- Read current eligibility, account access and rate conditions before applying.
How to Check Your Chelsea Building Society Savings Rate
Existing Chelsea savers should not use a current YBS headline rate to estimate what their old Chelsea account earns. Many Chelsea accounts are withdrawn products, and the interest rate depends on the exact account name, issue, balance tier and whether the rate is fixed or variable.
Official rates Chelsea Savings and Existing Account Rates
After opening this link:
- Go to the Existing customers section.
- Find the Chelsea interest-rates area.
- Open the current rates information for withdrawn products.
- Match the full account name and issue shown on your own account paperwork.
- Check whether your balance falls into a particular rate tier.
- If the account cannot be identified confidently, call Chelsea before moving the money.
Chelsea Building Society Online Account: Login, Register and Manage Accounts
Chelsea still provides online servicing for eligible existing accounts. Registered customers can use online access to review supported savings information, search transactions, view statements, update some personal details and send secure messages.
Eligible mortgage customers can also view year-to-date mortgage information, while eligible offset customers can see offset mortgage and savings balances and make supported transfers.
Official online help Chelsea Online Account Registration and Login Help
After opening this link:
- If you are not registered, choose the registration route and enter the Chelsea account details requested by the official service.
- Complete the identity and security questions.
- Confirm how Chelsea should contact you.
- Create the requested online password.
- Wait for the unique customer number where the registration process says it will be sent by post.
- If you already registered, use the Chelsea login route rather than registering again.
Pay Money Into a Chelsea Savings Account
Existing Chelsea savings customers can use supported electronic payments, standing orders and, for eligible online accounts, debit-card deposits. Account terms still control whether additional deposits are permitted.
Official payments Paying Into a Chelsea Account
After opening this link:
- Check that your Chelsea account can still accept additional deposits.
- Copy the official sort code rather than relying on an old saved payee.
- Use the first eight digits as the account number where instructed.
- Enter all ten digits of your Chelsea account number as the reference or roll number.
- For a large first payment, consider sending a small test payment and checking it appears correctly.
Transferring an Existing Chelsea Cash ISA
If you already have one or more Chelsea ISAs and manage the account online, Chelsea provides an online ISA-transfer route. The process is different from simply withdrawing the ISA money to a normal bank account.
Official transfer help Chelsea Payment and ISA Transfer Guidance
After opening this link:
- Find the ISA-transfer section.
- If you manage the Chelsea ISA online, log in using the official account route.
- Choose Account Options, then Manage ISA where those options are shown.
- Select the appropriate Chelsea ISA transfer instruction.
- If your situation is not supported online, call 0345 744 6622 or ask at a YBS branch.
What Happens When a Chelsea Fixed Savings Account Matures?
Chelsea says maturity products remain available to existing customers even though new Chelsea savings products are no longer generally offered to new customers. If you have a fixed-rate Chelsea account approaching maturity, use the existing-customer maturity process rather than applying for a brand-new Chelsea savings account.
Existing Chelsea Building Society Mortgages
Chelsea currently has no mortgage products for completely new Chelsea customers, but existing Chelsea borrowers still have dedicated servicing routes. These include switching an expiring deal, borrowing more, moving home with an existing mortgage, changing borrowers and requesting a redemption statement.
Official mortgages Chelsea Existing Mortgage Customer Services
After opening this link:
- Choose the task matching your existing Chelsea mortgage.
- If your deal is ending, check the end date before selecting a replacement product.
- Review any product fee and Early Repayment Charge.
- For moving home or borrowing more, expect additional eligibility and affordability checks.
- If you are leaving Chelsea/YBS, request the correct redemption figure for the intended completion date.
Chelsea Mortgage Rates and Standard Variable Rate
Mortgage rates depend on the individual deal. Existing Chelsea borrowers whose fixed, tracker or discounted product is ending should use the existing-customer product-switch service to see the rates available for their mortgage rather than relying on a public example.
Official rate-switch help Switch an Existing Chelsea Mortgage Deal
After opening this link:
- Check when your present mortgage deal ends.
- Prepare your mortgage account number.
- Review the products Chelsea says your mortgage is eligible to switch to.
- Compare the interest rate together with any product fee and Early Repayment Charge.
- Decide whether you want an advised telephone route or an online execution-only route where offered.
- Keep the confirmation showing the new deal and effective date.
Help if You Are Struggling With a Chelsea Mortgage
Chelsea provides dedicated support when mortgage payments are becoming difficult. The support team may discuss your income, spending and the circumstances affecting your ability to pay before explaining the options that may be available.
Residential mortgage support
Phone: 0808 156 1158
Chelsea currently publishes staffed hours of Monday to Friday 9am–6pm and Saturday 9am–1pm on its payment-difficulty page.
Buy-to-let mortgage support
Phone: 0808 156 1161
Use the specialist buy-to-let route rather than the residential number when your mortgage is a BTL account.
Payment support Chelsea Mortgage Payment Difficulty Help
After opening this link:
- Choose the residential or buy-to-let route matching your mortgage.
- Prepare your mortgage account details and next payment date.
- Have realistic household income and essential-spending figures available.
- Explain any expected change in income or unavoidable expenditure.
- Ask how each support option would affect future payments, total interest and your mortgage term.
Old, Forgotten or Inactive Chelsea Building Society Accounts
An old Chelsea savings account is not automatically worthless because you have not used it for years. Chelsea says an account can be classed as inactive when there has been no contact and no financial transaction for 15 consecutive years.
Chelsea may close an account under its terms after a long inactive period, but it states that the customer can still access the money, including accrued interest, after satisfactory identity checks.
Old accounts Chelsea Inactive Account Help
After opening this link:
- Read the inactive-account definition first.
- Gather any old passbook, statement, account number or Chelsea correspondence you still hold.
- Make sure you can prove your current identity and address.
- Use the published Chelsea inactive-account contact route or visit a YBS branch.
- Do not pay an unofficial third party simply to ask Chelsea whether an account still exists.
Chelsea Building Society Branches: Use the YBS Branch and Agency Network
Chelsea customers looking for a physical location are directed to Yorkshire Building Society branches and agencies. That is more useful than searching for an old Chelsea branch from before the merger because historical branch information may no longer reflect the current network.
Official locations Find a Yorkshire Building Society Branch or Agency
After opening this link:
- Search by postcode, town or local area.
- Open the individual location result.
- Check whether it is a full YBS branch or an agency.
- Confirm current opening hours.
- Check that the location can handle your specific Chelsea savings or mortgage task before travelling.
Chelsea / YBS Registered Office
Yorkshire Building Society
Registered office:
Yorkshire House
Yorkshire Drive
Bradford
West Yorkshire
BD5 8LJ
United Kingdom
Chelsea Building Society and the Chelsea are trading names of Yorkshire Building Society. The registered office is not automatically the right location for ordinary counter service; use the branch finder for face-to-face customer transactions.
Chelsea Building Society FSCS Protection Is Shared Across YBS Brands
This is one of the most important details for customers with substantial savings. YBS states that eligible deposits are protected by the Financial Services Compensation Scheme up to the current standard limit of £120,000 per eligible depositor.
The limit is not a separate £120,000 for every YBS trading name. Eligible deposits held with Yorkshire Building Society, Chelsea Building Society and Norwich & Peterborough Building Society are aggregated for the standard YBS protection limit.
Official protection YBS Financial Services Compensation Scheme Information
After opening this link:
- Check the current FSCS protection limit.
- Read the list of YBS trading names whose eligible deposits share the limit.
- Add your eligible balances across YBS, Chelsea and Norwich & Peterborough.
- For a large temporary balance, check whether separate temporary-high-balance protection may apply.
- If the position is important to a large deposit, verify it directly with YBS or FSCS before moving the money.
Chelsea Building Society Customer Service Numbers
Using the specialist number normally saves time because savings, online support and mortgage enquiries are handled through different routes.
Official contact Chelsea Contact Numbers and Customer Help
After opening this link:
- Choose Savings, Mortgage or another specialist section.
- Check the number and current opening times immediately before calling.
- Have your account or mortgage number available when appropriate.
- Never give an unexpected caller your complete online password or one-time security information.
- For account-specific written help, use secure messaging after logging in where available.
Make a Chelsea Building Society Complaint or Request Extra Support
Chelsea provides telephone and online complaint routes through YBS. A useful complaint sets out what happened, when it happened, what you have already tried and what outcome you want the Society to consider.
Official complaint route Make a Chelsea Building Society Complaint
After opening this link:
- Choose telephone or online complaint submission.
- Describe events in date order.
- Separate different issues so each point can be answered clearly.
- State what reasonable resolution you are asking for.
- Keep the complaint reference and copies of responses.
- If the complaint remains unresolved, read the current Financial Ombudsman escalation information and deadlines.
Accessibility Chelsea Accessibility and Extra Support
Chelsea/YBS can provide support such as alternative-format communications and branch accessibility assistance. The official page also covers additional help for customers who need communication adjustments or support in difficult circumstances.
After opening this link:
- Select the support area that matches your needs.
- Check available branch-accessibility facilities or communication formats.
- Use secure messaging or telephone support for account-specific arrangements.
- If visiting a branch for specialist support, confirm the service in advance.
Common Chelsea Building Society Mistakes to Avoid
Which Route Should You Use: Chelsea or YBS?
Related Building Society Guides
These guides can help when comparing YBS Group services or looking at another UK mutual before moving savings or choosing a mortgage.
Official Chelsea and YBS Resources Used for This Guide
These links are the strongest starting points for current account procedures, rates, support and regulatory information. Product details can change after publication.
How This Chelsea Building Society Guide Was Checked
Review date: 18 September 2026. Account-specific savings rates and mortgage product rates are intentionally not copied into a static comparison table because they can change and withdrawn products can have different issue-specific rates.
Independent Financial Information and Security Notice
Building-society.org is an independent informational website. It is not Chelsea Building Society, Yorkshire Building Society, the Financial Conduct Authority, Prudential Regulation Authority, Financial Services Compensation Scheme or Financial Ombudsman Service.
This guide cannot access an account, verify an account holder, move money, unlock online access, approve a mortgage or provide personalised regulated financial advice. Use Chelsea/YBS’s official secure services when submitting personal or financial information.
Chelsea Building Society FAQs
1. Is Chelsea Building Society still operating?
Yes, the Chelsea name is still used for existing customer servicing, but Chelsea Building Society and “the Chelsea” are trading names of Yorkshire Building Society. Chelsea merged with Yorkshire Building Society on 1 April 2010.
2. Can I open a new Chelsea Building Society savings account?
Chelsea currently states that it does not have savings products available for new customers. Existing Chelsea accounts continue to be serviced, while new savers are directed to the current Yorkshire Building Society savings range.
3. Does Chelsea Building Society still offer new mortgages?
Chelsea currently states that it has no mortgage products available for new customers. Existing Chelsea mortgage customers can still manage their loans, switch eligible deals, borrow more subject to criteria, move home and use other existing-customer services.
4. How do I check the interest rate on my old Chelsea savings account?
Open the official Chelsea savings page, find the existing-customer interest-rate information and use the current rates information for withdrawn products. Match the exact account name and issue on your own statement because similar Chelsea products can have different rates.
5. How do I log in to my Chelsea Building Society account?
Start from Chelsea’s official website or its online-account help page. Registered customers can follow the official login route, while eligible customers who have not registered can use Chelsea’s registration process. Avoid old bookmarks if they cause login problems.
6. What is the Chelsea Building Society savings customer service number?
Chelsea currently publishes 0345 744 6622 for existing savings customers, with staffed hours of Monday to Friday 9am–5pm and Saturday 9am–1pm. Check the official contact page for any later changes.
7. What is the Chelsea Building Society mortgage customer service number?
Chelsea currently publishes 0345 166 9300 for existing mortgage enquiries. For moving home or switching a mortgage deal, Chelsea lists 0345 166 9301. Current staffed hours should be confirmed on the official contact page before calling.
8. Can I use a Yorkshire Building Society branch for a Chelsea account?
Yes, Chelsea directs customers to the Yorkshire Building Society branch and agency network for supported face-to-face services. Check the individual location first because an agency may not offer every service available in a full branch.
9. Does Chelsea Building Society have its own £120,000 FSCS limit?
No separate standard limit should be assumed. YBS currently states that eligible deposits with Yorkshire Building Society, Chelsea Building Society and Norwich & Peterborough Building Society are combined for the standard £120,000 FSCS limit per eligible depositor.
10. Is Building-society.org the official Chelsea Building Society website?
No. Building-society.org is an independent informational website. Use the official Chelsea area of ybs.co.uk whenever you need to log in, submit personal information, move money, check your exact account rate or make a mortgage change.