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General Investment Account

Why join Mexem?

At Mexem UK, we provide a professional, all-in-one investing ecosystem, combining institutional-grade trading tools, transparent pricing, and global market access

Secure & Regulated

Authorised and regulated by the FCA. Backed by Interactive Brokers UK - providing secure execution and custody.

Low Cost and Transparent fees

Enjoy competitive trading fees, ZERO platform charges, and inactivity fees.
All pricing is clear and published, so you always know what you’re paying.

Institutional Technology for Every Investor

Access the same infrastructure used by professionals - including Trader Workstation (TWS), Client Portal, and Mobile - all within a secure, FCA-regulated environment.

Eligible products

Discover a complete range of investment products, from shares and ETFs to bonds and more , all accessible through a single Mexem UK account.
Trade seamlessly across 150+ global exchanges with transparent pricing, advanced tools, and regulated protection.

Global Stocks & Shares

Corporate Bonds

Government Bonds

Depository Receipts

Eligible American Depository Receipts

Recognised UCITS

ETFs

Mutual Funds

Advanced Tools. Seamless Experience.

Discover a complete suite of institutional-grade tools and multi-platform access, built to support investors of every level

Portfolio analyst

Compare portfolio performance to the benchmark, Track time weighted, money weighted returns over period of time

Tax reporting

Export detailed reports for dividends, interest, and capital gains, helping you stay organised for UK tax submissions. Reports are available for custom date ranges across all holdings.

CSV/EXCEL export

Download daily, monthly and custom date range activity statements, transaction histories, and cash flow summaries

Smart Routing Technology

Orders are routed across multiple venues to seek the best available pricing and liquidity.

No custody or platform fee

Mexem charges no monthly maintenance, inactivity, or custody fees.
All trading costs are clearly shown before order execution and detailed in your statements.

Global market access

Access live market data, global news feeds, and a broad range of tools within the platform ecosystem to support informed, data-driven decisions.

Transparent Pricing

ISA Account
GIA account
Platform Fee
US Stocks / ETFs
EU Stocks / ETFs
UK Stocks / ETFs
Non-base stocks
FX Conversions

FREE

FREE

FREE

£2 per trade

FREE

0.25% (any trade value)

*Third party fees apply

0.25%

(max £3.50/month)

£3.50 - £5.00

(lower tier for 10+ trades)

£3.50 - £5.00

(lower tier for 10+ trades)

£3.50 - £5.00

(lower tier for 10+ trades)

£3.50 - £5.00

(lower tier for 10+ trades)

0.25% - 0.75%

(0.75% first £10k)

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0.35% per annum

(capped at £12.5/month)

£3.95 - £6.95

(lower tier for 20+ trades)

£3.95 - £6.95

(lower tier for 20+ trades)

£3.95 - £6.95

(lower tier for 20+ trades)

£3.95 - £6.95

(lower tier for 20+ trades)

0.20% - 0.99%

(0.99% first £10k)

£5.99/month

(for accounts under £100k)

£3.99

£9.99

(or £7.99 on a plan)

£3.99

£9.99

(or £7.99 on a plan)

0.75%

(Flat rate on Core plan)

Platform Fee
US Stocks
EU Stocks
UK Stocks
ETFs
FX Conversions

FREE

$0.004 per share

(min $0.8)

0.04% per trade

(min €0.8)

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0.04% per trade

(min £0.8)

$0.004 per share

(min $0.8)

0.002% per trade

(min $2 or equivalent)

0.25%

(max £3.50 per month)


£5

(or £3.50 if ≥10 trades last month)

£5

(or £3.50 if ≥10 trades last month)

£5

(or £3.50 if ≥10 trades last month)

£5

(or £3.50 if ≥10 trades last month)

0.75%

£4.99

(for accounts under 50k)

£3.99

£9.99

(or £5.99 on a plan)

£3.99

£3.99

1.5%

(on the first £25k)

FREE

$0.015 per share

(min $1)

0.08%

(min £3 - 10)


0.08%

(min £3)

$1

(on US listed ETFs)

0.25%

Disclosure: Fee data shown in this comparison table reflects publicly available standard pricing for [brokers/platforms] as of September 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.
View pricing

Already investing elsewhere?

You can transfer your existing portfolio or cash holdings to Mexem UK with no transfer-in fees. We also support in-specie transfers, allowing you to move your positions without needing to sell your investments.
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Create your account online, verify your details, and start investing globally, all within a secure, FCA-regulated environment
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You can fund your account in GBP, EUR, or other major currencies, and begin trading through Trader Workstation (TWS), Client Portal, or Mobile App.
Open account

Frequently asked questions

Go to support page
Is my ISA account with Mexem a flexible ISA?

No, the only ISA account type that MEXEM offers is a non flexible Stocks and Shares ISA account. That means you can take money out, but it will count towards your annual ISA allowance if you pay it back in the same tax year.

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Do I need National Insurance Number to open an ISA?

Yes, you will need a National Insurance Number (NINO) to open an ISA account.


Please Note:


If not already listed then you need to enter the National Insurance Number in the Tax ID section of your profile to open a linked ISA account.  
Otherwise the system will return an error if you do not.
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See the following steps from your Client Portal:
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Click the Person icon on the top right of the screen

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> Settings

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> Account Settings followed by Account Profile

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> Profile Followed by the Pencil Icon to Edit your Profile information

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> In the Tax Residency section you may edit the information or remove Tax Residency and add another Tax Residency

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How much can i contribute each year to JISA?

For the 2025/26 tax year, the Junior ISA annual allowance is £9,000.

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This limit applies across all Junior ISAs your child may hold, including both cash and stocks & shares accounts.

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Who manages the JISA Account?

Parent or legal guardian:


Opens the account and acts as the registered contact.
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Ownership:

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All contributions belong to the child.
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Access:

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Funds remain locked until the child turns 18, at which point the Junior ISA automatically converts into an adult Stocks & Shares ISA.

What is JISA?

A Junior ISA (JISA) is a tax-free savings and investment account designed to help you build a secure financial future for your child. Any money you invest grows free from Income Tax and Capital Gains Tax, making it one of the most efficient ways to save for their future.
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There are two types of Junior ISAs available in the UK:
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Junior Cash ISA – earns tax-free interest.

Junior Stocks & Shares ISA – lets you invest in a wide range of qualifying investments such as shares, ETFs, funds, and bonds.
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At MEXEM, we will soon offer a Junior Stocks & Shares ISA that gives you access to 150+ global markets, 33 countries, and 23 currencies, all through our powerful trading platforms.

Secure & Regulated Trading

Mexem Financial Services UK Ltd is authorised and regulated by the Financial Conduct Authority (FCA), Firm Reference Number 1009371. We act as a non-disclosed introducing broker to Interactive Brokers (UK) Ltd (IBUK), a globally regulated custodian and execution venue. We provide secure access to global markets under UK regulatory protections.
Regulation & insurance
Safeguarding assets
FCA regulated
MEXEM UK is authorised and regulated by the Financial Conduct Authority (FCA), ensuring adherence to strict capital, conduct, and client asset protection rules.
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FSCS protected
Client assets are held with Interactive Brokers UK and are eligible for FSCS protection up to £85,000 in the event of IBUK’s default.
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Powered by Interactive Brokers
Our robust infrastructure leverages the global strength and advanced security protocols of our partner, Interactive Brokers (IBKR), a world-leading broker.
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Segregated client accounts
We do not hold client money or assets. All funds are safeguarded with our custodian partner, Interactive Brokers UK.

Your funds are held in segregated accounts, entirely separate from MEXEM's operational capital, ensuring your money is protected and easily identifiable.
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