Primary-source directory

Check platform fees at the source.

Investment-platform pricing is difficult to reduce to one reliable figure. This independent directory takes you to each provider's official charges and highlights what to examine.

Sources checked 9 September 2026. No affiliate links or paid placements appear on this page.

Six selected providers

Official fee schedules

This is not a whole-market comparison or a best-buy list. Providers are presented alphabetically. Inclusion or omission does not indicate a recommendation.

Wide investment range

AJ Bell

Check the different custody calculations for traditional funds and listed investments, dealing charges, regular-investment terms and any additional service costs.

Official AJ Bell ISA charges

Wide investment range

Hargreaves Lansdown

Check the separate charging structures for funds and listed investments, dealing-frequency bands and costs that apply outside regular monthly investing.

Official HL ISA charges

ETF-only platform

InvestEngine

DIY portfolios are limited to ETFs. Check ETF ongoing charges, market spreads, execution arrangements, cash treatment and the different terms for managed services.

Official InvestEngine ISA fees

Flat-fee plans

Interactive Investor

Check which monthly plan applies to your combined holdings, what trading credits include, dealing charges by investment type and foreign-exchange costs.

Official ii charges

Shares and ETFs

Trading 212

The Stocks ISA does not offer traditional funds. Check foreign-exchange charges, spreads, taxes, deposit methods and any third-party costs shown before placing an order.

Official Trading 212 cost information

Vanguard investments only

Vanguard Investor

The self-managed service is limited to Vanguard funds and ETFs. Check the account-fee bands, ETF dealing choices, fund charges and how fees apply across accounts.

Official Vanguard fees

Comparison checklist

Calculate the cost you would actually pay.

Use the same portfolio and behaviour assumptions for every provider. Recheck the figures immediately before opening or transferring an account.

01

Account and custody

Account type, portfolio value, charging tiers, caps, minimum fees, cash holdings and whether fees are aggregated across accounts.

02

Investments and activity

Fund or ETF ongoing charges, dealing frequency, regular investing, spreads, foreign exchange and reinvestment charges.

03

Transfers and service

Supported investments, transfer method, withdrawal terms, customer support, execution arrangements and optional service charges.

Risk notice: This directory provides general information, not personal financial or tax advice. Investments can fall as well as rise, and you may get back less than you invest. Charges and tax rules can change. Confirm current terms directly with the provider.

Before choosing

Price is only one part of the decision.

Investment range, regulatory permissions, asset custody, service and transfer arrangements may be as important as headline charges.