About CompareStockISA
We're here to make Stocks & Shares ISA platform fees transparent and easy to understand.
Our mission
We built CompareStockISA to make it easier to see what different Stocks & Shares ISA platforms really cost, all in one place. We're impartial and focused only on showing platform fees clearly, never on telling you where to invest.
The problem we solve
Charges for Stocks & Shares ISAs can be confusing. Some platforms charge flat fees, others use percentages or tiered bands, and many add dealing charges and foreign exchange fees on top. That makes it hard to compare platforms fairly and understand the cost of your investments over time.
Complex fee structures
- Flat fees vs percentage fees
- Tiered pricing bands
- Hard to understand dealing charges
- Foreign exchange fees
How we help
We collect the fee data Stocks & Shares ISA platforms disclose, apply the same assumptions to each one, and model estimated costs from the information you enter. The results come back in one consistent format, so comparison is easier.
Our solution
- Consistent estimated fee modelling
- Side-by-side comparisons
- Transparent assumptions
- Easy-to-understand results
Our values
The principles behind everything we do.
Transparency
We're open about how the calculator works, what it assumes and where its data comes from.
Independence
Figures come from official fee disclosures. Platforms can't pay to change our data or comparisons.
User focus
Built to make complex fee structures easier to understand, with illustrative cost comparisons.
What we do
Four areas that keep the comparisons accurate and useful.
Data collection
Fee data from platforms' public websites, terms and fee schedules.
Cost modelling
Platform, dealing and FX charges, estimated from your inputs.
Fair comparison
One set of assumptions and one method for every platform.
Regular updates
We monitor platform fee changes and update the data when they move.
Important information and limitations
What we do and don't provide.
No investment advice. We don't tell you which ISA platform to choose, give personal recommendations or assess suitability.
No platform endorsements. We don't endorse any platform. The tool is purely informational, to help you understand costs.
Data accuracy. The calculator relies on data platforms disclose. It may be incomplete, out of date or change without notice.
Professional advice. If you're unsure about investing, speak to an independent FCA-authorised financial adviser.
Get in touch
Questions about how we work, or suggestions for improvements? Your feedback helps make the tool better for everyone.