Looking for tax-free savings with a building society Cash ISA? At Monmouthshire Building Society you can choose from an instant access ISA, limited access Cash ISA, notice options, or a building society fixed rate ISA - so you can match flexibility with a rate that suits you.
| Account Name | Interest Rate (AER/Tax-free) |
Ways to Open |
| Instant ISA | 2.35% - 2.60% | Online Branch or Agency, or via the App |
You must be an existing member for this ISA
Click on the account name in the table below for more information
| Account Name | Interest Rate (AER/Tax-free) |
Ways to Open |
| Exclusive One Access Cash ISA | 3.10% | Online Branch or Agency, or via the App |
| Account Name | Interest Rate (AER/Tax-free) |
Ways to Open |
| Limited Access Cash ISA |
2.78% | Online Branch or Agency, or via the App |
| Account Name | Interest Rate (AER/Tax-free) |
Ways to Open |
| 35 Day Notice Cash ISA | 3.70% | Online Branch or Agency, or via the App |
| Account Name | Interest Rate (AER/Tax-free) |
Ways to Open |
| 1 Year Fixed Rate Cash ISA |
3.75% | Online Branch or Agency, or via the App |
| 2 Year Fixed Rate Cash ISA |
3.65% | Online Branch or Agency, or via the App |
Further information and T&Cs for each of our ISAs can be found by clicking the account name in the tables above
Unsure on what an ISA is?
Click here for our Guide to ISAs
More detailed information about ISAs is contained in the ISA Factsheet available from any tax office or online at www.hmrc.gov.uk
Looking for the rate on a closed savings account?
Simply click on the links below to view:
Withdrawn Fixed Rate Accounts
Withdrawn Variable Rate Accounts
View our other savings products
A building society Cash ISA is a savings account where you don't pay tax on the interest. Each tax year you can put in up to £20,000 across your ISAs. The interest you earn is always tax-free (subject to regulation changes).
You can find out more about paying tax on interest from savings on the government website: https://www.gov.uk/apply-tax-free-interest-on-savings.
An instant access Cash ISA lets you take money out whenever you need it while still earning tax-free interest. It's a simple option if you want savings you can dip into without penalties.
Yes. MonBS has an exclusive cash ISA for existing customers. It offers a competitive tax-free rate and allows one free withdrawal a year, making it useful if you usually leave savings untouched but want the reassurance of access if needed.
A limited access Cash ISA gives you a higher rate of tax-free interest in return for restricting how often you withdraw. If you stay within the set number of withdrawals, you keep the full rate. Go over the limit, and the rate will drop for that period depending on the product.
Yes, our fixed rate Cash ISA locks in your interest for a set term, usually 1 to 5 years. You'll know exactly what you'll earn over that time. It's best suited to lump sums you can leave untouched, as withdrawing early usually means losing some interest.
Yes. A notice Cash ISA pays a strong rate of tax-free interest if you're happy to give notice before making a withdrawal (such as 35 days). It's a good choice if you don't need immediate access but still want flexibility.
Yes. You can open MonBS ISAs online, in-branch or agency, or through our app. You can also manage payments and withdrawals the same way, depending on the account rules.
Yes. You can move an ISA from another provider into MonBS and keep all the tax-free benefits. Transfers can come from a Cash ISA or from a stocks and shares ISA. Your savings will carry on earning interest without losing the tax advantages.
Yes. All MBS savings accounts, including ISAs, are protected by the Financial Services Compensation Scheme (FSCS) up to £120,000 per person. This gives our building society savers peace of mind that their money is protected.
