How to pick the right UK investment platform for your goals

# Overview

# Start with the account type you need Pick the tax wrapper first. Most UK platforms offer:

• Stocks and shares Isa — tax-free growth and withdrawals.
• Self-invested personal pension (Sipp) — pension tax rules apply, often with different admin arrangements.
• General investment account — no tax wrapper but flexible withdrawals.

# How platforms charge: models to understand Platform charges fall into three common forms. Which one is cheapest depends on your portfolio size and activity:

# Match features to your investor type

• Occasional trader with a large portfolio: a flat-fee platform can be cheaper than a percentage charge. Check monthly plan tiers and free trade allowances.
• Small or new investor making regular contributions: look for low or zero regular investing fees and platforms that support automated monthly buys.
• Passive ETF investor: platforms that offer free or very low-cost ETF trading, or those with low platform admin on ETFs, will reduce long-term costs (the comparison highlights specialist ETF-only options such as InvestEngine and Vanguard's platform for Vanguard products).
• Investor who wants advice or ready-made portfolios: providers such as AJ Bell and Bestinvest offer ready-made options with specific admin rates.

# Other practical checks before you sign up

• Confirm whether dividend reinvestment is free for funds and shares. The table shows many platforms offer free fund reinvestment while share DRIPs may carry fees.
• Look for account caps and minimums. Some providers cap the admin charge or have minimum platform fees.
• Check Sipp admin separately. For example, IG's Sipp carries a distinct annual admin fee in the source table.

# Recent market context Several platforms adjusted charges in early-to-mid 2026 in response to regulatory and competitive pressures. This has generally reduced costs for investors, but fee structures now vary more by platform type and investor profile.

# Bottom line Decide your account wrapper, estimate your first-year and ongoing portfolio size and trading frequency, then compare the platform models in the source table: percentage admin versus flat monthly fees versus per-trade costs. Factor in product range (funds, ETFs, trusts), dividend handling, Sipp availability and any FX or Sipp-specific admin fees when making the final choice.