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Stocks & Shares ISA
With Mexem UK, you can access professional grade tools and global markets all in a tax efficient wrapper.
A Stocks & Shares ISA is a government-approved investment account that lets you invest up to £20,000 per year with no UK tax on capital gains or dividends.
Eligible investments include:
UK stocks
US & EU shares
Corporate Bonds
Government Bonds
Eligible ETF
*Eligible investments are determined by HMRC
*ISA contributions must be made in GBP only (HMRC requirement)
Who Can Open STOCKS & SHARES ISA?
You can open and hold a Stocks & Shares ISA if you are:
Age
18 years or older at the time of application.
UK resident
A UK resident for tax purposes (or a Crown servant/spouse working overseas, paid from UK public revenue).
Insurance number
Have a valid National Insurance number.
Annual ISA Limit
Have not exceeded the annual ISA allowance.
Choose Mexem for your Stocks & Shares ISA
A Platform for Every Investor
Mexem’s platform is powerful enough for professional traders yet easy to navigate for retail investors.
Global Access
Trade in 33 countries, on 150 market venues, and in 23 currencies, all from a single account.
Trading Platform
MEXEM offers trading platforms for every need, from our mobile app to the advanced Trader Workstation.
Unified Portfolio Reporting
View and manage your ISA alongside all your other accounts in one clear, real-time dashboard.
Trust & Support
Your investments deserve industry-leading protection:
FCA-regulated introducing broker
FSCS protection up to £85,000
Client service with global support
For experienced investors
Advanced order types, portfolio analysis tools, real-time market data.
For new investors
Clean, intuitive interface, guided account setup, and educational resources.
Transparent Pricing
Mexem’s platform is powerful enough for professional traders yet easy to navigate for retail investors.
Platform Fee
FREE
0.25% (max £3.50 per month)
0.45% per annum (capped at £45/year)
£4.99 per month
US Stocks
FREE
£5 (or £3.50 if ≥10 trades last month)
£5.99 - £11.95 (lower tier for 20+ trades)
£3.99
EU Stocks
FREE
£5 (or £3.50 if ≥10 trades last month)
£5.99 - £11.95 (lower tier for 20+ trades)
£9.99 (or £5.99 on a plan)
UK Stocks
£2 per trade
£5 (or £3.50 if ≥10 trades last month)
£5.99 - £11.95 (lower tier for 20+ trades)
£3.99
Non-base stocks
FREE
£5 (or £3.50 if ≥10 trades last month)
£5.99 - £11.95 (lower tier for 20+ trades)
£9.99 (or £5.99 on a plan)
ETFs
FREE
£5 (or £3.50 if ≥10 trades last month)
£5.99 - £11.95 (lower tier for 20+ trades)
£3.99
FX Conversions
0.25%
(any trade value) * Third party fees apply
(any trade value) * Third party fees apply
0.75%
0.25%-1% (Depending on tade value 5k-20k+)
1.5% (on the first 25K)
Disclosure: Fee data shown in this comparison table reflects publicly available standard pricing for [AJBell, Hargreaves Lansdown, Interactive Investor)] as of [08/09/2025], excluding any promotional offers or temporary campaigns. Other charges, such as FX conversion, custody, inactivity, and withdrawal fees, may apply depending on the provider and account type. We recommend reviewing each provider's full fee schedule directly before making investment decisions.*For MEXEM ISA FX Conversions third party fees apply, capped at total commission of 0.35%
Transfer Your Existing ISA
If you already have an ISA or JISA elsewhere, you can move it to Mexem. We facilitate in-specie transfers, allowing you to move your portfolio without having to sell your current investments and with no transfer fees from us.
isa FAQ
Are there any fees for ISA transfer?
Mexem UK does not charge a fee for incoming ISA transfers
Your current ISA provider may charge exit or transfer fees - please check with them directly.
How long does it take for an ISA transfer to complete?
ISA transfers typically take a few business days, up to 30 calendar days, depending on your current provider.
Please Note, You can track the progress of your ISA transfer via Transfer & Pay followed by Transaction Status & History.
What can I invest in from my Mexem UK Stocks and Shares ISA?
Your current Stocks and Shares ISA account provider must validate the account number provided on the request.
All personal details must match exactly (Name, Address (postal code), Date of Birth and NINO) across both providers.
How To transfer your Stocks and Shares ISA Account from your current ISA provider to Mexem UK?
To transfer your Stocks and Shares ISA Account from your current ISA provider to Mexem UK log in to Client Portal and follow the steps:
Log in to Client Portal
Navigate to Transfer & Pay
Select Transfer Existing ISA
Follow the on screen steps:
Enter your current ISA Provider Account ID
Select from the dropdown list your provider Name
Depending on your Stock and Shares ISA account provider, Mexem UK may offer "In Species/Position Transfer" and "Cash only Transfers".
After submitting the request:
Mexem UK will contact your current ISA Manager to initiate the transfer of your account.
Important Information:
Mexem UK may not support transfers from all ISA providers. You will see the list of supported providers when you initiate the transfer in Client Portal.
If Mexem UK does not support all your investments held at your existing ISA Manager, you can have two options:
- Sell the unsupported investments yourself before initiating the transfer (any cash proceeds of such liquidation will be transferred to your Mexem UK ISA)
- Instruct Mexem UK (as part of your transfer instructions via Client Portal) to liquidate those investments
Note: Only full ISA transfers are supported.
Can I check the tax-year to date contributions i have made into my ISA account?
Yes, to check the tax-year to date contributions you need to create a deposit notification for a fund transfer. Before selecting "Get Transfer Instructions" on the final page there is a contribution tracker showing you how much you have contributed so far during the current tax year.
Do I pay tax on on my ISA?
No, you do not pay tax on income or capital gains from investments in a Stocks and Shares ISA account.
If you complete a tax return, you do not need to declare any ISA interest, income or capital gains on it.
Please note: This information is for general guidance only. MEXEM UK does not provide tax advice. Tax treatment depends on your individual circumstances and may be subject to change. If you are unsure, you should seek advice from a qualified tax professional.
Can i cancel or return my contribution at Mexem UK if i accidentally over contributed to my ISA with another Provider?
Mexem UK permits the return of credited payments from a Stocks and Shares ISA account back to the originating bank account under these conditions:
- You, the client informs Mexem UK within 4 weeks of unintentional over-contribution.
- Funds have remained in cash, unused for trading.
- No partial or full payouts occurred, these are taxable events.
- Cancellation occurs before the tax year deadline of April 5th.
To submit the request, you are required to create a ticket via the message center. When creating a ticket, please select topic "Funds and Banking".
it possible to set up recurring investments within an Mexem UK Stocks and Shares ISA?
No, recurring investments are not allowed in an Mexem UK ISA account at the moment.
Please Note
Recurring investments require fractional shares trading permissions. Fractional shares trading permissions are not allowed in an Mexem UK ISA account as of yet.
Can i link my existing IBUKL Stocks and Shares ISA account to Mexem UK?
Yes, you can link your IBUKL Stocks and Shares ISA account to Mexem UK. Please see below the steps:
Login to Client Portal
Person Icon on top right of your screen
Setting
Manage account Linking
Link my Existing Account to an Advisor/Broker
What are the consequences of holding non-qualifying investments in an Mexem UK ISA?
HMRC regulations require Mexem UK to remove the non-qualifying investments from the Stocks and Shares ISA account within 30 calendar days. Mexem UK will transfer the non-qualifying investments to your linked General Individual Account to ensure we continue to operate your ISA account in accordance with HMRC regulations.
> should General Investment Account
Open Your ISA Today
Take advantage of tax-free investing and global market access with a platform designed for clarity, control, and growth.