The standard Trading 212 Cash ISA interest rate is 3.60% AER variable as of 17 July 2026. It is set 0.15 percentage points below the Bank of England base rate, which is currently 3.75%.
Eligible new customers may receive a higher promotional rate through selected partner offers. One current promotion pays 4.53% AER, comprising the 3.60% variable rate and a fixed 0.93-percentage-point bonus for 12 months.
A separate partner offer pays 4.51% AER with a 0.91-point bonus, showing why different comparison pages may display different Trading 212 rates.
The higher headline rate is not available automatically to every saver. Eligibility, the application link or code, the date money is deposited and whether an ISA transfer contains current- or previous-tax-year contributions can all affect the rate received.
Key Highlights
| Feature | Current Position |
|---|---|
| Standard rate | 3.60% AER variable |
| Selected promotional rate | Up to 4.53% AER |
| How the standard rate is set | Bank Rate minus 0.15 percentage points |
| Bonus period | Usually 12 months under current partner offers |
| Minimum qualifying deposit | £1 under current promotional terms |
| Interest calculation | Accumulates daily |
| Interest payment | Monthly, on the third calendar day |
| Account access | Flexible with instant access |
| 2026/27 ISA allowance | £20,000 across all ISAs |
| Promotional transfer treatment | Current-year contributions may qualify; older money may receive the standard rate |
Rates and promotional conditions can change, so applicants should confirm the live offer displayed during registration.
What Is The Trading 212 Cash ISA Interest Rate?
Trading 212’s standard Cash ISA rate is 3.60% AER variable. This is the underlying rate that applies without an introductory bonus and normally becomes the account rate after a promotion expires.
The highest widely advertised partner promotion checked on 17 July 2026 was 4.53% AER for qualifying new customers.
That total consisted of a 3.60% variable component and a 0.93-point fixed bonus lasting 12 months. Another current partner campaign offered 4.51%, illustrating that promotional rates are campaign-specific rather than universal.
AER, or annual equivalent rate, estimates the return over a year after compounding, assuming the rate and balance remain unchanged. Because the underlying rate is variable, the actual amount earned is not guaranteed.
Why Does The Trading 212 Cash ISA Rate Change With Bank Rate?
The standard interest rate tracks the Bank of England base rate at a margin currently set at minus 0.15 percentage points. A base rate of 3.75% therefore produces a standard Cash ISA rate of 3.60%.
Trading 212’s official wording is: “Our Cash ISA interest rate rises and falls in line with the BoE’s base rate.”
The provider says it updates the Cash ISA rate immediately after a base-rate change. If it increases its own tracking margin instead, it says customers will receive 14 days’ written notice.
For illustration, a 3.50% base rate would produce a 3.35% standard rate if the 0.15-point margin remained unchanged. A rise to 4.00% would produce 3.85%. These figures are examples, not interest-rate forecasts.
The next scheduled monetary-policy decision is on 30 July 2026, although a meeting does not necessarily result in a rate change.
How Does The Trading 212 Cash ISA Promotional Rate Work?
The Standard Rate And Fixed Bonus
A promotional rate adds a fixed bonus to the variable standard rate. Under the current 4.53% campaign, the total comprises the 3.60% standard rate plus a 0.93-point bonus for 12 months.
The bonus itself remains fixed during the advertised period, but the total rate can still move because the 3.60% component follows Bank Rate.
When the promotion ends, the bonus is removed and only the standard variable rate remains. The official Cash ISA promotion terms confirm this structure.
Who Qualifies For The Higher Promotional Rate?
Eligibility depends on the individual campaign. Current official conditions generally require an applicant to:
- Be resident in the UK.
- Have no existing or previous Trading 212 account.
- Open a new Cash ISA through the relevant promotional link or code.
- Make a first deposit of at least £1 within 10 days.
- Make the qualifying deposit during the current tax year.
- Complete all steps within the campaign period.
Opening the account without the correct promotional route may leave the customer on the standard rate. Applicants should retain the offer details and confirmation shown when registering.
Why Do Comparison Websites Display Different Rates?
Separate partner campaigns can carry different codes, bonus margins and closing dates.
One offer checked on 16 July 2026 provided a 0.93-point bonus, while another checked on 15 July provided a 0.91-point bonus and was scheduled to accept applications until 3 August 2026.
The standard 3.60% rate was the same in both cases. The difference arose from the promotional addition, which is why savers should follow the exact offer they intend to use rather than relying on a rate quoted elsewhere.
When Is Trading 212 Cash ISA Interest Calculated And Paid?
Interest accumulates daily on eligible money held in the Cash ISA but is credited monthly on the third calendar day. Daily interest notifications therefore show accrued interest; they do not mean a separate cash payment is made each day.
The daily calculation allows deposits and withdrawals to affect interest according to how long the money remains in the account.
Funds withdrawn during the month stop earning interest after leaving the eligible balance, while new deposits begin earning according to the provider’s processing and calculation rules.
Monthly compounding is reflected in the AER. Actual annual interest may differ from a simple balance multiplied by the headline rate where money moves during the year or the variable rate changes.
Which ISA Transfers Receive The Trading 212 Promotional Rate?
Transferred ISA money does not necessarily receive the promotional rate in full. The determining factor is usually when the transferred money was originally contributed and how the previous ISA manager reports it.
Current-Tax-Year Contributions
Money reported as a contribution made during the current tax year may qualify for the promotional bonus, provided the transfer and customer satisfy the campaign conditions.
For the 2026/27 tax year, this generally means qualifying contributions originally paid into an ISA between 6 April 2026 and 5 April 2027. The bonus may not appear until Trading 212 receives the Transfer History Form confirming the contribution year.
What Happens To Savings From Previous Tax Years?
Money contributed during earlier tax years will normally receive only the standard rate under the current partner promotion.
For example, consider a £30,000 transfer containing £6,000 contributed in 2026/27 and £24,000 contributed earlier. The £6,000 may qualify for the promotional rate, while the £24,000 may receive 3.60%.
This is an illustration; the actual allocation depends on the campaign terms and transfer records.
Savers transferring substantial older balances should calculate the blended return across the entire transfer rather than assessing the account solely by its headline promotional rate.
Transfer Records And Rate Allocation
Customers should request a formal ISA transfer through the receiving provider.
The official ISA transfer instructions warn that withdrawing the money personally instead of using the transfer process can affect the ability to reinvest it within the tax-free allowance.
The former provider’s Transfer History Form identifies how much relates to the current tax year. If an amount is not reported as a current-year contribution, Trading 212 states that it will receive only the standard interest rate.
How Much Interest Could You Earn In The Trading 212 Cash ISA?
The following calculations assume the balance and interest rate remain unchanged for a full year.
Estimated Annual Interest
| Balance | At 3.60% Standard Rate | At 4.53% Promotional Rate | Approximate Difference |
|---|---|---|---|
| £1,000 | £36.00 | £45.30 | £9.30 |
| £5,000 | £180.00 | £226.50 | £46.50 |
| £10,000 | £360.00 | £453.00 | £93.00 |
| £20,000 | £720.00 | £906.00 | £186.00 |
On a £10,000 balance, the 0.93-point bonus is worth approximately £93 over 12 months if the balance remains unchanged. A customer receiving the separate 4.51% offer would earn about £451 on £10,000 under the same simplified assumptions.
Actual returns may differ because the standard rate can change, deposits and withdrawals affect the daily balance, and only part of an ISA transfer may qualify for a bonus.
How Flexible Is The Trading 212 Cash ISA For Withdrawals And Deposits?
Trading 212 describes its Cash ISA as flexible and instant access.
Customers can withdraw money and add funds without a stated withdrawal limit, although processing, security checks and linked-bank requirements may still affect how quickly money reaches an external account.
The main flexible-ISA rules are:
- Current-tax-year withdrawals can generally be replaced during the same tax year without using the allowance twice.
- Previous-tax-year money must normally be returned to the same flexible ISA from which it was withdrawn.
- Replacement money must be paid back before the tax year ends.
- Money outside the account does not earn Cash ISA interest.
- Total new ISA subscriptions must remain within the applicable annual allowance.
The ISA allowance for 2026/27 is £20,000 across all adult ISAs. Government policy is due to reduce the Cash ISA subscription limit to £12,000 for most people under 65 from 6 April 2027, while those aged 65 or over will retain a £20,000 Cash ISA limit.
The announced change concerns future subscriptions and does not remove the tax-free status of money already held in an ISA.
How Safe Is Money Held In A Trading 212 Cash ISA?
Cash and investments are held separately from Trading 212’s own company money under UK client-asset rules. However, the relevant Financial Services Compensation Scheme limit depends on whether a partner bank or Trading 212 itself fails.
Partner-Bank Deposit Protection
Eligible cash is protected up to £120,000 per person, per banking group if the partner bank holding it fails. The limit includes other eligible deposits the customer holds with the same banking group, not only money accessed through Trading 212.
A saver with £100,000 in the Cash ISA and £40,000 directly with the same banking group could therefore have £140,000 exposed to one £120,000 limit. The official funds protection details explain the distinction.
What Happens If Trading 212 Itself Fails?
A separate investment-protection limit applies if Trading 212 fails and eligible cash or assets cannot be returned. The stated limit is £85,000 in total across eligible investments and cash.
This is not an additional £85,000 payment for the same partner-bank loss. The £120,000 deposit limit and £85,000 investment-firm limit address different failure scenarios.
How Can Savers Avoid Exceeding The FSCS Limit?
Savers with large balances should identify the underlying banking group, include money held directly with that group and review whether the combined amount exceeds the applicable limit.
Protection also depends on eligibility and the legal entity providing the account. Customers should check their account documents and current compensation-scheme rules rather than assuming every balance is covered automatically.
Is The Trading 212 Cash ISA Interest Rate Competitive And Worth It?
The Trading 212 Cash ISA can be competitive for an eligible new customer depositing new money.
The current 4.53% partner offer is above several other easy-access Cash ISA rates, while another 4.51% campaign led one comparison chart when checked on 15 July 2026.
The account may suit savers who:
- Qualify for the full promotional rate.
- Are depositing new or current-tax-year money.
- Want flexible access and monthly interest.
- Are comfortable managing savings online or through an app.
- Will review the account before the bonus expires.
It may be less suitable for savers who:
- Are transferring a large previous-tax-year balance.
- Want the full return fixed for a set period.
- Prefer telephone or branch-based account management.
- Do not qualify for a promotional offer.
- Do not want to monitor Bank Rate or switch after 12 months.
The decisive figure is the rate applying to the saver’s actual balance. For new money, the promotion may be attractive; for older ISA transfers, the effective blended rate could be much closer to the 3.60% standard return.
Conclusion
The Trading 212 Cash ISA interest rate is 3.60% AER variable, with selected eligible new customers currently able to obtain a promotional total of up to 4.53% AER for 12 months.
The offer is most compelling for qualifying customers depositing new or current-tax-year money. Previous-tax-year transfers may receive only the standard rate, while the total promotional return can change if Bank Rate moves.
Before applying, savers should confirm the live rate, promotional code, deposit deadline, transfer treatment, bonus expiry date and FSCS position for their full balance.
Frequently Asked Questions
What Is The Minimum Deposit For A Trading 212 Cash ISA?
The current promotional terms require an initial deposit of at least £1 within 10 days of opening the account. The exact deadline should be checked against the selected campaign.
Does Trading 212 Charge A Cash ISA Account Fee?
Current comparison information lists no account fee for the Cash ISA itself. Customers should nevertheless check the latest terms for any payment-method, transfer or related-service charges before applying.
Does Cash ISA Interest Use The Annual ISA Allowance?
No. Interest earned inside the ISA does not count as a new subscription and does not reduce the remaining annual allowance. The allowance applies to money the saver contributes.
Can I Open Another Cash ISA In The Same Tax Year?
Current ISA rules allow adults to contribute to more than one ISA, provided total subscriptions remain within the £20,000 annual allowance and any product-specific conditions are met.
Can I Hold A Cash ISA And Stocks And Shares ISA Together?
Yes. A saver may hold both account types, but contributions across all ISAs must remain within the annual limit. Investments in a Stocks and Shares ISA carry market risk, unlike cash held in a Cash ISA.
What Happens When The Trading 212 Bonus Period Ends?
The promotional addition stops and the account continues at the standard variable rate applying at that time. Savers should compare alternatives before the expiry date rather than assuming the introductory rate will continue.
Can I Transfer The Cash ISA To Another Provider?
Yes. ISA money can normally be transferred to another provider using its formal transfer process. Customers should check whether either provider applies restrictions, processing times or charges.
Editorial Note
This article provides general financial information and is not personalised financial advice. Interest rates, promotions, eligibility rules and application deadlines can change without notice.
Calculated returns are illustrations and are not guaranteed. Readers should verify current terms and protection eligibility before depositing or transferring money.
