Stocks & Shares ISA
£20,000 annual allowance · typical return 5.1%
Annual allowance
£20,000
2026/27 tax year
Government bonus
None
-
Age eligibility
18+
UK residents
Typical return
5.1%
medium-high risk
100% of the cross-wrapper £20,000 cap
Stocks & Shares ISA vs other ISA wrappers
Annual subscription allowance comparison
Key insight
Stocks & Shares ISA lets UK residents aged 18+ shelter up to £20,000 a year from tax. No HMRC top-up applies to this wrapper, returns come only from interest or investment growth. This wrapper falls into the medium-high risk category, typically returning around 5.1% (FTSE All-Share TR Index 1985-2024 real).
Good match: Long-term goals (5y+), retirement, wealth building. Poor match: Emergency fund, sub-5y goals.
Derived from gov.uk Individual Savings Accounts + the HMRC ISA Manager Guidance Notes (2026/27 tax year). Additional context from HMRC ISA Statistics.
Rules at a glance
| Attribute | Stocks & Shares ISA | Source |
|---|---|---|
| Annual allowance | £20,000 | gov.uk ISAs |
| Government bonus | None | HMRC ISA Manual |
| Age eligibility | 18+ | HMRC ISA Manager Guidance |
| Risk band | medium-high | FCA Conduct of Business |
| Typical return | 5.1% | FTSE All-Share TR Index 1985-2024 real |
| FSCS protection | Protected up to £85,000 per banking authorisation | FSCS |
| Withdrawal rules | Withdraw any time (sell + T+2 settlement). | HMRC ISA Manual |
| Transfer rules | In-specie or cash transfer permitted. | HMRC ISA Manual |
| Tax treatment | Interest, dividends, capital gains exempt from UK Income Tax and CGT | Income Tax Act 2007 s.694 |
Table sources: gov.uk Individual Savings Accounts, HMRC ISA Managers Guidance Notes, Income Tax Act 2007 s.694.
Frequently asked questions
Can I transfer between Stocks & Shares ISA providers?
Yes -- use the receiving provider's ISA transfer form; the transfer itself never counts against your £20,000 annual subscription allowance. In-specie or cash transfer permitted.
Can I subscribe to multiple Stocks & Shares ISAs in one tax year?
Since 6 April 2024, HMRC allows multiple subscriptions to same-type ISAs within one tax year (the £20,000 overall cap still applies).
Disclaimer & how ISA wrappers are taxed
Every ISA wrapper -- not just this one -- shelters interest, dividends, and capital gains from UK Income Tax and Capital Gains Tax, with no Self Assessment reporting required. Compared to saving outside any ISA wrapper, that matters most for higher-rate and additional-rate taxpayers; basic-rate taxpayers benefit primarily once their non-ISA interest exceeds the £1,000 Personal Savings Allowance.
PlainISA does not provide financial advice. For personalised guidance on which ISA wrapper suits your circumstances, consult an FCA-authorised financial adviser. See our methodology page for sourcing.
Browse all ISA types side-by-side or see our goal-mapped wrapper choice guide.