UK ISA Platform Fee Comparison 2026
Platform fees are the hidden cost that erodes long-term returns. A 0.45% annual fee on a £100,000 portfolio costs £450 per year — and that compounds over decades. Compare fees, fund ranges and account types across 13 UK stocks and shares ISA providers. Updated March 2026.
Annual fees shown for ISA accounts. Always verify current fees on the platform's own website before investing.
Portfolio fee calculator
See your annual platform cost across every provider for a given portfolio size.
Portfolio value£10,000
£1,000£500,000
AJ BellCheapest
Share/ETF cap £42/yr. Fee drops to 0.10% above £250k.
£25/yr
Hargreaves Lansdown
Fund dealing £1.95/trade. Share/ETF cap £150/yr.
£35/yr
Vanguard
£4/month minimum fee if balance under £32,000.
£48/yr
Platform fee only. Does not include dealing charges, fund OCF, or SIPP fees. Always verify on each platform's website.
Click any platform for full details. Tick checkboxes to compare side by side.
| Compare | Platform | Annual ISA fee | Fee cap | Fund dealing | Share dealing | SIPP | Best for |
|---|---|---|---|---|---|---|---|
| Hargreaves Lansdown Most popular | 0.35% p.a. | £150/yr | £1.95 | £6.95 | ✓ | Wide fund range, customer service | |
| AJ Bell Good all-rounder | 0.25% p.a. | £42/yr | £1.5 | £5 | ✓ | Mid-size portfolios, research tools | |
| Vanguard Best for big portfolios | 0.15% p.a. | £375/yr | Free | Not offered | ✓ | Vanguard fund investors, low fees |
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