ISA vs savings account: which is right for your money?

Navigating where to stash your cash can be confusing, especially when balancing interest rates against tax allowances. Choosing the wrong account could mean paying unnecessary tax on your hard-earned growth.

Deciding between an ISA and a regular savings account is one of the most important choices you'll make when managing your money in the UK. Both options offer a secure space to store your money while earning interest, but key distinctions around tax, annual deposit rules, and flexibility determine which option gets you the most value.

Read on to learn all about ISAs and savings accounts, how to choose the right one for you, and how to start saving with us.

The information provided is accurate as of 7 August 2026.

The content of this page is for general information purposes only and doesn't constitute financial advice. If you have any questions about your personal circumstances, please seek professional and independent advice. Revolut isn't a financial adviser.

Understanding traditional savings accounts

A standard savings account is a straightforward tool designed to help you set money aside from your main account. Unlike current accounts intended for everyday transactions and bill payments, savings accounts are designed to help you build an emergency buffer or work toward personal milestones. Banks pay interest on the balance you hold, helping your money grow over time.

Common types of standard savings accounts

• Instant access savings accounts: offer complete flexibility, allowing you to add or withdraw money whenever you need to, without facing financial penalties. Learn about our Instant Access Savings account.¹
• Fixed-rate savings accounts: require you to lock your money away for an agreed upon duration, like 1–5 years, in exchange for a fixed interest rate
• Regular saver accounts: encourage consistent saving habits by requiring a monthly deposit up to a fixed maximum allowance, often offering competitive short-term interest rates

¹Instant Access Savings T&Cs apply.

Understanding individual savings accounts (ISAs)

An ISA, or individual savings account, is a specialised account structure established under UK tax legislation.

Is an ISA a savings account?

A cash ISA is a savings account, while other types of ISA can hold investments whose value may rise or fall. Income (such as interest and dividends) and capital gains generated within an ISA are generally free from UK Income Tax and Capital Gains Tax, regardless of how much you earn.

To keep this tax-free status, account holders must follow the government's annual limit. For the current tax year, the maximum amount you can put into all types of ISAs combined is £20,000. Money you put in during previous tax years is protected inside the account, and doesn't count towards your allowance for this year.

Common types of ISAs in the UK

• Cash ISAs: function similarly to standard cash savings tools, earning interest without exposing your deposit to stock market fluctuations.
• Stocks and shares ISAs: allow you to invest in equities, bonds, and funds. Returns remain tax-free, though your capital carries investment risk.
• Innovative finance ISAs: focus on peer-to-peer lending and alternative investments, offering potential returns alongside increased credit risk.
• Lifetime ISAs: designed for first-time home buyers or retirement planning. Contribute up to £4,000 each tax year and receive a 25% government bonus of up to £1,000.

Key differences between a cash ISA vs savings account

There are a few key characteristics that differentiate how these accounts work under UK financial guidelines:

Tax allowance on interest

The main difference between an ISA and a savings account centres on taxation. Returns earned within any ISA in the UK are generally free from Income Tax and Capital Gains Tax, regardless of how much you earn or your personal income tax band. The £20,000 annual ISA limit applies to how much you can pay in (your contributions), not to the interest or returns you earn.

Standard savings accounts are a little more complex. They fall under the Personal Savings Allowance (PSA) rules. Under current tax regulations, UK taxpayers receive a personal tax-free allowance for interest earned across non-ISA accounts:

• Basic rate taxpayers (20%): can earn up to £1,000 in interest per tax year tax-free
• Higher rate taxpayers (40%): can earn up to £500 in interest per tax year tax-free
• Additional rate taxpayers (45%): don't receive a Personal Savings Allowance and must pay income tax on all interest earned outside an ISA

If interest rates are elevated or your cash balance is substantial, earning returns in a standard account can quickly push you past your Personal Savings Allowance, triggering an unexpected tax liability.

Annual deposit limits

An ISA savings account is restricted by the £20,000 annual limit. You can't deposit more than this threshold into your ISAs during a single tax year running from 6 April–5 April the following year.

Traditional savings accounts don't have a government-imposed annual deposit maximum. While individual banks may enforce maximum operational limits on specific tools, you can generally save as much money as you wish across standard accounts.

Account structure and joint ownership

ISAs are strictly personal. You can't open a joint cash ISA or pool your annual £20,000 limit with a partner. However, standard savings accounts can be opened individually or jointly between 2 or more people.

Investment risk and capital safety

When held with eligible UK institutions, your deposits are protected up to £120,000 per eligible person, per UK-authorised firm under the Financial Services Compensation Scheme (FSCS).

Revolut Ltd is an e-money institution and does not hold your savings deposits directly. Your savings are protected by the FSCS through our partner banks — up to £120,000. Check the FSCS website for more information. Note that this limit applies per authorised firm across all accounts you hold with them, not per brand. Investment products (such as Stocks and shares ISAs) carry investment risk and are not covered by bank deposit protection.

Comparison: cash ISA vs savings account at a glance

How to choose between an ISA or savings account

The right choice normally depends on your overall tax position and saving targets.

An ISA account is a good idea if:

• you're a higher or additional rate taxpayer with lower tax-free interest allowances
• you have a significant cash balance that'd gain annual interest above your Personal Savings Allowance
• you want to build a long-term tax shelter that protects your compounding returns against future tax changes

A standard savings or isa alternative may be suitable if:

• you're a basic rate taxpayer whose total annual interest will remain safely below £1,000
• you've already maxed out your £20,000 annual ISA limit for the current tax year
• you prefer to hold a joint account with a spouse or partner to manage collective finances

The right choice comes down to calculating your projected annual interest earnings against your Personal Savings Allowance threshold.

Can you have an ISA and a savings account at the same time?

Yes. Lots of people hold both types of accounts simultaneously. Holding both lets you maximise your £20,000 tax-free ISA allowance while keeping separate cash reserves in flexible, high-yielding standard accounts.

Combining different account structures gives you total flexibility, allowing you to move money efficiently based on interest rates and tax considerations.

How to start growing your money with Revolut

With Revolut, you can easily open an Instant Access Savings account from your phone. Follow these simple steps to set up your account:

1. Download the Revolut app from the App Store or Google Play Store and sign up in a few minutes.
2. Open your app and navigate to the home screen. Tap 'More' below your balance, then 'Add products & accounts'.
3. Tap 'Save' to explore our available options.
4. Follow the prompts to set up your Savings account.
5. Enter the initial amount of money you want to deposit and confirm. Your money will start earning interest right away.

18+, UK tax residents only. Read the Summary Box and Instant Access Savings T&Cs before applying.

The Annual Equivalent Rate (AER) shows the interest you can earn over 1 year. AER is compounded, so you'll earn interest on interest already earned. Interest is liable to applicable taxes. Rates are variable and subject to change. Paid plan fees and Instant Access Savings T&Cs apply.