Why CompareStockISA exists
A calculator-led alternative to affiliate-style comparison
Investors often struggle to compare ISA platforms because fees can be split across platform charges, dealing costs, FX charges, caps, tiers and product-specific rules.
CompareStockISA turns those moving parts into a calculator that users can adjust, inspect and compare across providers.
To our knowledge, there is no mainstream ISA comparison tool exposing platform, dealing and FX fee modelling in this transparent calculator format. The site is independent and informational: it does not give financial advice, make recommendations or tell users which platform to use.
Platform fees
Flat, percentage, capped, tiered and threshold structures.
Dealing charges
Share, ETF, fund and international dealing costs.
FX fees
International investment costs based on user allocation.
Public sources
Fee schedules, provider disclosures and official data links.
The supporter model
A supporter model built around trust
Supporters fund the ongoing work of maintaining a transparent comparison tool and commit to keeping their fee data easy to verify. The commercial relationship is visible, limited and separated from the calculator methodology.
Improve data accuracy
Give us a nominated contact and clear sources for platform fees, dealing charges, FX fees, account terms and product coverage.
Be recognised transparently
Appear as an industry supporter with factual wording that signals support for fee transparency, not suitability or endorsement.
Fund independent comparison
Contribute through a paid supporter relationship while leaving rankings, methodology and calculator results unchanged.
UI examples
Recognition beside the fee data, not above it
Supporter recognition appears where users are already reviewing provider costs. The wording stays factual: support for transparent fees, not endorsement, recommendation or paid placement.
Platform Results
Example placement inside the calculator results table.
| Platform | Type | Total annual cost | Platform fees | Dealing fees | FX fees | Supports | Execution method |
|---|---|---|---|---|---|---|---|
Example ISA Platform Transparent fee supporterStock ISA | MFT | £42.00 | £0.00 | £12.00 | £30.00 | SEUKINTFRAFLEX | MOE |
Another Provider Stock ISA | TRD | £73.50 | £45.00 | £18.00 | £10.50 | SEUKINT | Q&D |
The badge signals a transparency commitment. It does not change the numbers, order, methodology or suitability messaging.
Optional website badge
Approved supporters can display a small badge on their own site linking back to this page. Assets are supplied directly after approval.

- Industry supporter recognition on CompareStockISA.
- A transparent fee supporter badge next to provider data where appropriate.
- A credible signal that your platform supports clearer fee comparison for UK investors.
- A direct route to keep fee data, product coverage and source links accurate.
- No paid ranking or preferred placement in calculator results
- No provider recommendation, endorsement or suitability claim
- No change to methodology in exchange for supporter status
- No hiding of non-supporting providers or negative cost outcomes
How it works
A simple operating process
The process is designed to improve accuracy quickly while keeping editorial control and methodology with CompareStockISA.
Initial data review
We compare the current calculator data against your official fee schedule and product information.
Factual recognition agreed
We agree neutral supporter wording for on-site badges, listings and transparency statements.
Ongoing update channel
You nominate a contact who alerts us when fees, terms or product coverage change.