CompareStockISA

InvestEngine vs Prosper

Side-by-side comparison from each platform's published fees.

InvestEngine DIY Stock ISA compared with Prosper Stock ISA

InvestEngine

DIY Stock ISA

Prosper

Stock ISA
Estimated yearly costexample investorNot shown: it can't hold the example mix (see what it can hold)Not shown: it can't hold the example mix (see what it can hold)
Fees
Platform fee
Whole portfolio
No platform fees
Whole portfolio
No platform fees
Dealing
ETFs
£0 per trade
Mutual funds
Not supported
US shares and ETFs
Not supported
ETFs
£0 per trade
Mutual funds
£0 per trade
US shares and ETFs
Not supported
FX
No FX fees (UK only)
No FX fees (UK only)
How trades are placedBatch DealingBatch Dealing
What it can hold
UK investmentsSupportedSupported
US sharesNot supportedNot supported
Individual sharesNot supportedNot supported
Exchange-traded funds (ETFs)SupportedSupported
Mutual fundsNot supportedSupported
Flexible ISASupportedSupported
Fractional tradingSupportedSupported
About the providers
Official websiteVisit InvestEngine websiteVisit Prosper website
Founded2016 (10 years old)2019 (7 years old)

Example investor: £80,000 portfolio, 12 trades a year, half in shares (half of them US) and half in UK ETFs. Estimate with your numbers

Important notice. The information shown on this page is sourced from provider websites and is for illustrative purposes only. It may be inaccurate, outdated, or not account for all scenarios, promotions, discounts, or variations in fees due to specific circumstances. Always check the provider's official website for the most up-to-date and accurate information. These figures are general estimates and should not be considered as financial advice. Data updated 8th October 2026.

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Use our illustrative calculator to estimate platform fees based on how you invest. Not financial advice.