When you invest, tax affects how much of your return you keep. Over years and decades, the gap between an efficient strategy and an inefficient one can be large – not because you took more risk, but because you sheltered more of what you made.
This matters more in 2026 than it did a few years ago. The Capital Gains Tax annual exempt amount now sits at just £3,000, down from £12,300 in 2022/23, so gains that once fell comfortably inside the allowance are now taxable. At the same time, the main allowances for tax-efficient saving have been frozen, which means using them well is worth more than ever.
Below, we walk through the main routes, starting with the ones almost anyone can use and moving towards the more specialist options for larger portfolios.
ISAs: The Foundation Most People Should Fill First
An ISA is the simplest way to shelter investments from tax, and it is available to everyone. Any interest, dividends or gains earned inside an ISA are completely tax-free, and you never have to declare them on a tax return.
The allowance for 2026/27 is £20,000, frozen at that level since 2017/18, so in real terms it buys less than it used to – another reason not to waste it.
Each type of ISA does a slightly different job, and you can hold more than one kind at once. The main options are:
- Stocks and shares ISAs suit longer-term investing, holding shares, funds and bonds with all growth sheltered.
- Cash ISAs hold savings with tax-free interest, useful for money you may need sooner.
- Lifetime ISAs add a 25% government bonus, up to £1,000 a year, for under-40s saving for a first home or retirement.
- Innovative Finance ISAs wrap peer-to-peer lending, and carry more risk than the others.
Recent and Upcoming Changes to ISAs
The ISA rules have moved in the last two years, and more is coming, so it is worth knowing where you stand before you commit money for the year. A few changes in particular affect how you plan.
- Multiple ISAs of the same type – since April 2024 you can pay into more than one cash or stocks and shares ISA in a single tax year, as long as your total stays within the £20,000 limit. The old rule that tied you to one of each per year is gone.
- A cash ISA cap from April 2027 – savers under 65 will be able to put only £12,000 of their £20,000 allowance into cash ISAs, with the rest going into stocks and shares or other types.
- The Lifetime ISA under review – the government has said it will consult in 2026 on replacing the Lifetime ISA with a simpler product for first-time buyers, so treat it as useful now rather than permanent.
If cash ISAs are central to your savings, the coming year is the time to make the most of the current rules before the 2027 cap takes effect.
Pensions: The Most Generous Relief on Offer
For sheer efficiency, pensions offer the most valuable relief available, because your contributions are topped up with tax you have already paid. Used well, a pension reduces this year’s tax bill while funding your future at the same time.
How the Relief Works
When you pay into a pension, the government adds back the tax you paid on that money. Basic-rate relief is applied automatically, while higher and additional-rate taxpayers claim the rest back through their tax return. The tax relief depends on your band:
- Basic-rate taxpayers get 20%, so £80 becomes £100 in the pension.
- Higher-rate taxpayers can claim back up to a further 20%.
- Additional-rate taxpayers can claim back up to a further 25%.
Annual Allowances and Limits
There is a ceiling on how much you can pay in each year with relief. The standard annual allowance is £60,000, or 100% of your earnings if lower, and unused allowance from the previous three tax years can often be carried forward. For higher earners the allowance tapers: once adjusted income passes £260,000 it reduces gradually, down to a minimum of £10,000 for the very highest earners.
The New Rules on Tax-Free Cash
The lifetime limit on the size of a pension pot was abolished in April 2024, so there is no longer a ceiling on how much you can accumulate. What replaced it is a cap on tax-free cash: you can take up to £268,275 as a tax-free lump sum, and anything above the relevant limits is taxed as income when you withdraw it.
Venture Capital Schemes: High Relief for Higher Risk
Once ISAs and pensions are working hard, some investors look to the government’s venture capital schemes, which reward backing small, growing companies with substantial tax relief. The relief is generous precisely because the risk is real – these are early-stage businesses, and some will fail – so they suit experienced investors who can afford to lose the capital.
Enterprise Investment Scheme (EIS)
EIS offers 30% income tax relief on investments of up to £1 million a year, rising to £2 million if at least £1 million goes into knowledge-intensive companies. Gains on shares held for at least three years are free of Capital Gains Tax, losses can be set against income or gains if the company fails, and you can defer gains from elsewhere by reinvesting them.
EIS shares in qualifying trading companies can also fall outside your estate for inheritance tax after two years, subject to the newer cap on business relief. From April 2026 the company limits expanded, so larger firms now qualify, and the scheme is legislated to run until 2035.
Seed Enterprise Investment Scheme (SEIS)
SEIS targets the very earliest-stage companies and offers even more: 50% income tax relief on up to £200,000 a year, raised from £100,000 in 2023. The company must be under three years old with gross assets below £350,000. Because the reliefs combine, a higher-rate investor’s effective loss on a failed investment can be a fraction of the sum they put in – though that softens the loss rather than removing it.
Venture Capital Trusts (VCTs)
VCTs spread your money across a managed portfolio of small companies, which reduces single-company risk. The important 2026 change is the rate: income tax relief on new VCT shares has fallen from 30% to 20% from April 2026. Dividends remain tax-free and gains are exempt, and you need to hold the shares for five years to keep the relief.
How the Three Schemes Compare
The three schemes sit at different points on the risk and reward curve, so the right one depends on how much risk you can take and how long you can commit. This table sets the headline terms side by side.
| Scheme | Income Tax Relief | Annual Limit | CGT on Gains | Holding Period |
|---|---|---|---|---|
| SEIS | 50% | £200,000 | Exempt after 3 years | 3 years |
| EIS | 30% | £1m (£2m knowledge-intensive) | Exempt after 3 years | 3 years |
| VCT | 20% | £200,000 | Exempt | 5 years |
Getting the Order Right
Tax-efficient investing is as much about sequence as selection. For most people, filling ISA and pension allowances comes first, because the relief is reliable and the risk is yours to control. Venture capital schemes come later, for those who have used the mainstream options and can take on real risk in exchange for higher relief.
It is also worth using the tools around the edges. Transferring assets to a spouse can make use of two annual exemptions rather than one, spreading disposals across tax years keeps you inside the Capital Gains Tax allowance more often, and moving existing holdings into an ISA shelters future growth.
Investors who trade actively or at scale face their own rules, which our guide on how tax works for professional investors covers in more detail. The right mix depends on your income, goals and appetite for risk – which is where good tax planning matters most.
Talk to Double Point
Tax-efficient investing rewards planning, and the rules shift often enough that last year’s approach is not always this year’s. At Double Point, our chartered accountants can look at your whole position and help you use the allowances and tax reliefs that fit your circumstances. In practice, that means we:
- Review your income, investments and goals as a whole.
- Match the right allowances and reliefs to your situation.
- Handle the paperwork and Self Assessment reporting.
- Keep your plan up to date as the rules change.
If you want to keep more of what your investments earn, book a consultation with us today and we will build a plan around your circumstances.