Short answer
Which is cheaper?
For a GBP-listed ETF ISA, both model at £0/year. If you enter £500/month FX, InvestEngine DIY remains £0 in the current model while Trading 212 models at £9/year. The practical difference is range: ETF-only versus shares plus ETFs.
- Pure ETF ISA
- InvestEngine is the cleanest fit for ETF-only portfolios.
- Shares
- Trading 212 adds individual shares; InvestEngine DIY does not.
- FX
- The model gives InvestEngine the edge when FX volume is entered.
Fee model
Platform, dealing and FX fees
| Fee area | InvestEngine | Trading 212 |
|---|---|---|
| Platform/account fee | £0 | £0 |
| Dealing fee | £0 | £0 |
| FX fee | £0 | 0.15% on non-GBP trades. |
| Investment range | ETFs only. No funds, no individual shares. | Shares and ETFs, no open-ended funds. |
| Flexible ISA | Yes | Yes |
Worked examples
Calculator-backed scenarios
- £20,000 GBP-listed ETF ISA, no FX: InvestEngine DIY £0; Trading 212 £0.
- £20,000 ETF ISA, £500/month FX: InvestEngine DIY £0 in the current model; Trading 212 £9.
- £20,000 open-ended fund ISA: Neither is a like-for-like open-ended fund platform in this calculator.
These examples use the same fee assumptions as the main ISA fees calculator. They exclude fund ongoing charges, stamp duty, bid/offer spread, investment performance, and temporary promotions.
Important caveats
Before switching provider
Provider fees can change, and terms can vary by product, plan, transfer route, cash interest policy, and promotion. Verify the provider’s current terms before opening or transferring an ISA.
This page is factual educational content, not personal financial advice or a recommendation to buy, sell, transfer, or choose a specific investment platform.
Sources