Tax and wrappers · Guide

Tax-efficient investing in the UK: ISA, SIPP and GIA in order

Tax-efficient investing in the UK usually runs in a familiar order: employer pension money, a cash buffer, ISAs, more pension, then a general investment account using its allowances. Here are the 2026 to 2027 limits and what changes on 6 April 2027.

Rewritten and checked against primary sources on 9 October 2026.

A person filling in forms, planning tax efficient investing
Photo: Behnam Norouzi / Unsplash+

The short answer

In 2026 to 2027 you can put £20,000 into ISAs and up to £60,000 into pensions under the annual allowance, with tax relief at your income tax rate. Outside wrappers, the dividend allowance is £500, the capital gains exemption £3,000 and the Personal Savings Allowance £1,000 or £500. From 6 April 2027, the cash ISA limit for under-65s falls to £12,000, savings income tax rises to 22%, 42% and 47%, and most unused pensions come into inheritance tax.

In this article
  1. Tax efficient investing: the wrappers at a glance, 2026 to 2027
  2. 1. The employer’s pension contribution
  3. 2. A cash buffer
  4. 3. ISAs
  5. 4. More in a pension
  6. 5. The general investment account and its allowances
  7. 6. Higher-risk tax reliefs
  8. Why the order varies
  9. Questions readers ask
  10. Sources

Tax efficient investing in the UK usually follows a familiar order: take any employer pension contribution, keep a cash buffer, use ISAs (up to £20,000 in the 2026 to 2027 tax year), add to pensions for the tax relief, and only then use a general investment account (GIA), where a £500 dividend allowance, a £3,000 capital gains exemption and the Personal Savings Allowance still shelter some returns. All figures are as at 9 October 2026.

This explains the order people commonly consider and why; it is not a recommendation. The right sequence for you depends on your age, income, goals and when you will need the money, and the rules change on 6 April 2027 for cash ISAs and savings income.

Tax efficient investing: the wrappers at a glance, 2026 to 2027

ISA (stocks and shares or cash) Lifetime ISA Pension (workplace or SIPP) General investment account
Annual limit £20,000 across all ISAs £4,000, within the £20,000 £60,000 annual allowance; relief on up to 100% of earnings None
Help going in None 25% bonus, up to £1,000 a year Tax relief at your rate; 20% added at source None
Tax inside None on interest, income or gains None Investment income and gains exempt Dividends above £500, interest above your allowance, gains above £3,000
Taking money out Usually any time, tax-free For a first home or later life Usually from 55; up to 25% tax-free, capped at £268,275; the rest subject to income tax Any time; capital gains tax on gains when you sell
Change ahead From 6 April 2027: £12,000 cash ISA limit for under-65s; 22% charge on interest on cash in stocks and shares ISAs To be replaced by a new first-time buyer product Most unused pension funds count for inheritance tax on deaths from 6 April 2027 Savings income rates rise to 22%, 42% and 47% from 6 April 2027

Sources: gov.uk ISAs, gov.uk Lifetime ISA, gov.uk annual allowance, gov.uk pension tax relief, HMRC Pensions Tax Manual, gov.uk, gov.uk lump sum allowance, gov.uk tax on pensions, gov.uk dividends, gov.uk CGT, HMRC technical note, HMRC newsletter and HMRC inheritance tax policy paper.

1. The employer’s pension contribution

For employees, the first step people usually consider is not losing employer money. Under automatic enrolment the minimum total contribution is 8%, of which at least 3% comes from the employer (gov.uk). Some employers match more if you pay more. No other wrapper offers an immediate addition of that size, which is why it usually comes first, with the caveat that pension money is locked away until at least 55 in most cases (gov.uk).

2. A cash buffer

Before investing, MoneyHelper suggests three to six months’ essential outgoings in an instant access account (MoneyHelper). That cash can sit in a cash ISA or an ordinary savings account. Interest outside an ISA is tax-free up to the Personal Savings Allowance: £1,000 for basic rate taxpayers, £500 for higher rate and nothing for additional rate (gov.uk).

3. ISAs

You can pay up to £20,000 a year into ISAs, split across types as you like, but only one Lifetime ISA a year. You pay no tax on interest, income or capital gains, and nothing needs declaring on a tax return (gov.uk). There are four types: cash, stocks and shares, innovative finance and Lifetime (gov.uk). Money can be taken out of an ISA at any time without losing the tax benefits (gov.uk), so ISAs can serve goals before retirement as well as after; the exception is the Lifetime ISA, which charges 25% on withdrawals other than for a first home, from age 60 or in terminal illness (gov.uk).

The Lifetime ISA takes up to £4,000 a year until 50, with a 25% bonus of up to £1,000 a year, for a first home or later life; the first payment must be made before 40 (gov.uk). HMRC says a new first-time buyer product will replace it, and Lifetime ISAs can be opened until that is available (HMRC).

Three ISA changes start on 6 April 2027. Savers under 65 will be able to put no more than £12,000 a year into a cash ISA within the £20,000 limit, while those 65 and over keep £20,000 (HMRC). Transfers from stocks and shares and innovative finance ISAs into cash ISAs will not be permitted for under-65s, and interest on cash held in stocks and shares and innovative finance ISAs will face a flat 22% charge (HMRC).

The rules are now law in the Individual Savings Account (Amendment) (No. 2) Regulations 2026, made on 10 September 2026. Our cover story on the April 2027 cash ISA changes and our report on the 22% charge on cash in stocks and shares ISAs go further.

4. More in a pension

Beyond the employer match, pensions offer the largest upfront relief. With relief at source, the provider adds 20% and higher or additional rate taxpayers claim the rest through Self Assessment; relief is available on contributions up to 100% of earnings (gov.uk). The annual allowance is £60,000. Unused allowance from the previous three tax years can be carried forward once the current year’s is used, and the allowance may be reduced if threshold income is above £200,000 and adjusted income above £260,000 (gov.uk). Inside a registered pension scheme, investment income and gains are exempt from income tax and capital gains tax (HMRC).

The costs are access and tax on the way out. Money usually stays in until 55 (gov.uk); up to 25% can then usually be taken tax-free, to a maximum of £268,275 (gov.uk), and income tax applies above that (gov.uk). From 6 April 2027, most unused pension funds and death benefits will count towards the estate for inheritance tax on deaths on or after that date (HMRC), which changes how some people weigh pensions against ISAs for passing on wealth.

5. The general investment account and its allowances

Once ISAs and pensions are used, or for money that needs neither, a GIA still has allowances. In 2026 to 2027:

  • Dividends: £500 allowance, then 10.75%, 35.75% or 39.35% (gov.uk).
  • Capital gains: £3,000 annual exempt amount (gov.uk), then 18% within the basic rate band and 24% above (gov.uk).
  • Interest: the Personal Savings Allowance above, plus up to £5,000 of interest tax-free under the starting rate for savings if your other taxable income is less than £17,570 (gov.uk). Interest above the allowances is taxed at 20%, 40% or 45% (gov.uk), rising to 22%, 42% and 47% across the UK from 6 April 2027 (HMRC).

Three techniques come up often. “Bed and ISA” means selling holdings in a GIA and buying them back inside an ISA, using the ISA allowance; the sale counts for capital gains tax. Assets given or sold to a husband, wife or civil partner are free of capital gains tax unless you separated and did not live together at all in that tax year, or the assets were goods for their business to sell on (gov.uk), so a couple can use two sets of allowances. And gains on UK government gilts are free of capital gains tax (gov.uk). Our explainer on low-coupon gilts and capital gains tax shows how that works.

6. Higher-risk tax reliefs

Venture capital trusts, the Enterprise Investment Scheme and the Seed Enterprise Investment Scheme give tax reliefs for backing small and early-stage companies. People usually look at them last, after the mainstream wrappers, because the risks are of a different order. Our comparison of SEIS, EIS and VCTs sets out the reliefs, and our sister title SEIS Investments has a side-by-side guide.

Why the order varies

The sequence above is a common pattern, not a rule. Someone saving for a deposit within a few years may favour ISAs or a Lifetime ISA over pension contributions they cannot reach. A higher-rate taxpayer may weigh pension relief more heavily. Someone thinking about inheritance may reconsider after the April 2027 pension change. Your circumstances decide the order, which is where a regulated adviser earns their fee. If you are earlier on, start with our guide to how to start investing.

Questions readers ask

What is the ISA allowance for 2026 to 2027?

You can save up to £20,000 in ISAs in the 2026 to 2027 tax year, split between cash, stocks and shares, innovative finance and Lifetime ISAs, with no more than £4,000 into a Lifetime ISA (gov.uk). From 6 April 2027, savers under 65 can put no more than £12,000 into a cash ISA within the £20,000 limit, while those aged 65 and over keep a £20,000 cash limit (HMRC).

Is a pension or an ISA more tax-efficient?

They work differently. Pensions give tax relief on contributions and exempt investment income and gains, but money is usually locked away until 55 and withdrawals above the tax-free part are taxed as income. ISAs give no relief going in but nothing is taxed coming out and you can usually withdraw at any time. From 6 April 2027 most unused pensions count for inheritance tax (HMRC).

How much can I invest outside an ISA tax-free?

In 2026 to 2027, the first £500 of dividends is tax-free, as is the first £3,000 of capital gains (gov.uk). Interest is tax-free up to the Personal Savings Allowance of £1,000 for basic rate taxpayers and £500 for higher rate taxpayers, and up to £5,000 more under the starting rate for savings if other taxable income is below £17,570.

What changes for investors in April 2027?

From 6 April 2027, the cash ISA limit falls to £12,000 for under-65s within the £20,000 overall limit, transfers from stocks and shares ISAs to cash ISAs stop for under-65s, and interest on cash in stocks and shares ISAs faces a 22% charge (HMRC). Savings income tax rates rise to 22%, 42% and 47%, and most unused pension funds come into inheritance tax.

What is Bed and ISA?

Bed and ISA means selling investments held in a taxable general investment account and buying them back inside an ISA, using that year's ISA allowance. Future income and gains on the holding are then sheltered, since gov.uk says you pay no tax on income or capital gains from ISA investments. The sale itself is a disposal, so it may use or exceed the £3,000 capital gains exemption.

Sources

  1. gov.uk, Individual Savings Accounts: how ISAs work, checked 9 October 2026
  2. gov.uk, Individual Savings Accounts, checked 9 October 2026
  3. gov.uk, Individual Savings Accounts: withdrawing your money, checked 9 October 2026
  4. HMRC, Change to tax rates for property, savings and dividend income: technical note, 26 November 2025
  5. HMRC, Tax-free savings newsletter 22: June 2026, 24 June 2026, updated 17 July 2026
  6. legislation.gov.uk, The Individual Savings Account (Amendment) (No. 2) Regulations 2026 (SI 2026/1018), made 10 September 2026; in force 6 April 2027
  7. gov.uk, Lifetime ISA, checked 9 October 2026
  8. gov.uk, Lifetime ISA: withdrawing money, checked 9 October 2026
  9. gov.uk, Workplace pensions: what you, your employer and the government pay, checked 9 October 2026
  10. gov.uk, Tax on your private pension contributions: tax relief, checked 9 October 2026
  11. gov.uk, Tax on your private pension contributions: annual allowance, checked 9 October 2026
  12. HMRC, PTM024400: overview of pensions taxation, investments, 24 August 2026
  13. gov.uk, Early retirement, your pension and benefits: personal and workplace pensions, checked 9 October 2026
  14. gov.uk, Tax on your private pension contributions: lump sum allowance, checked 9 October 2026
  15. gov.uk, Tax when you get a pension, checked 9 October 2026
  16. HMRC, Inheritance Tax on unused pension funds and death benefits, 26 November 2025
  17. gov.uk, Capital Gains Tax: allowances, checked 9 October 2026
  18. gov.uk, Capital Gains Tax: rates, checked 9 October 2026
  19. gov.uk, Capital Gains Tax: what you pay it on, checked 9 October 2026
  20. gov.uk, Capital Gains Tax: gifts to your spouse or civil partner, checked 9 October 2026
  21. gov.uk, Tax on dividends, checked 9 October 2026
  22. gov.uk, Tax on savings interest: how much is tax-free, checked 9 October 2026
  23. gov.uk, Income Tax rates and Personal Allowances, checked 9 October 2026
  24. MoneyHelper (Money and Pensions Service), How much to save for an emergency, checked 9 October 2026
  25. Financial Services Compensation Scheme, Investments: what we cover, checked 9 October 2026
  26. Financial Conduct Authority, Beware of high-risk investments from unregulated firms, 26 September 2025
  27. SEIS Investments, SEIS vs EIS vs VCT (sister title), checked 9 October 2026

This is information, not financial advice. We explain how things work and report figures from named sources; we do not recommend investments. If you need advice, use a regulated adviser.