Most people know they should use an ISA. Fewer realise how much the tax rules around investing have changed in the past couple of years, or how much those changes affect what you actually keep after tax.
Allowances have been cut, rates have gone up, and the Autumn 2025 Budget added another round of changes on top. Let’s take a closer look at the tools that still work and how they fit together.
ISAs: Still the Foundation, but Watch the Cash Cap
The annual ISA allowance remains at £20,000 for the 2026/27 tax year. You can split that across cash ISAs, stocks and shares ISAs, and innovative finance ISAs however you like.
What’s changing is the cash side. From April 2027, anyone under 65 will only be able to put £12,000 into a cash ISA per year. The remaining £8,000 of your allowance will need to go into other ISA types if you want to use it. For anyone sitting on large cash ISA balances, this is a prompt to think about whether some of that money should be working harder in a stocks and shares ISA.
Inside a stocks and shares ISA, all growth, dividends and interest are completely free of income tax and capital gains tax. With the dividend allowance now just £500 and the CGT annual exempt amount down to £3,000, that shelter matters more than it used to. Dividend tax rates also rose in April 2026, with the basic rate now 10.75% and the higher rate 35.75%, which sharpens the case for keeping income-producing shares inside a wrapper.
From April 2027 there will be another wrinkle. Under the same announced changes, any interest paid on cash held inside a stocks and shares ISA is set to face a flat 22% charge, so using the wrapper as a parking spot for cash will make less sense than it does now.
SIPPs and Pensions: The Biggest Tax Break Going
If ISAs are the foundation, pensions are the heavy lifter. The annual allowance for pension contributions is £60,000 for 2026/27, or 100% of your UK earnings if that’s lower. A higher-rate taxpayer putting £10,000 into a SIPP effectively pays £6,000 out of pocket once tax relief is factored in.
You can also carry forward unused allowance from the previous three tax years. If you’ve had a few years of lower contributions, this can open up a much larger one-off payment. And since the lifetime allowance was abolished in April 2024, there’s no longer a ceiling on how big your pension pot can grow without penalty.
For earners between £100,000 and £125,140, pension contributions are particularly powerful. Every pound contributed in that band reclaims your personal allowance at an effective marginal rate of around 60%.
How Discretionary Managers Build Tax into Portfolio Design
A good discretionary manager doesn’t treat tax wrappers as an afterthought. They’ll structure your holdings so that the most tax-inefficient assets, like bonds producing regular income, sit inside ISAs or pensions. Growth-oriented equities might be held in a general investment account where they can benefit from the CGT annual exempt amount.
This is where coordinated UK investment management makes the difference, because the decisions play out over years, not in a single tax-year sprint. A technique called “bed and ISA” lets you sell holdings in a taxable account and repurchase them inside your ISA, gradually migrating gains into a tax-free wrapper. With the CGT exempt amount now at just £3,000, you can only shelter a small slice of gains each year, which makes consistent annual action more important than a one-off tidy-up.
VCTs and EIS: Higher Risk, Higher Relief
For investors willing to take on more risk, Venture Capital Trusts and the Enterprise Investment Scheme offer generous tax breaks. EIS still provides 30% income tax relief on investments up to £1 million per year. VCTs now offer 20% relief (reduced from 30% as of April 2026) on up to £200,000.
Both come with conditions. EIS shares must be held for at least three years, and VCT shares for five. The underlying companies are smaller and less liquid, so these aren’t suitable for everyone. But for higher-rate taxpayers who’ve already maxed out their ISA and pension, VCTs and EIS can still add real value:
- EIS: 30% income tax relief, CGT exemption on disposal, and CGT deferral on gains reinvested from other assets
- VCTs: 20% income tax relief, tax-free dividends, and CGT exemption on sale
- SEIS: 50% income tax relief on up to £200,000, aimed at very early-stage companies
The April 2026 changes also doubled the qualifying company limits for EIS and VCT investments, with annual company limits rising from £5 million to £10 million and lifetime limits from £12 million to £24 million. That means more scaling businesses can now access funding through these schemes.
The CGT Squeeze and What It Means for You
The CGT annual exempt amount has fallen from £12,300 in 2022/23 to just £3,000 today, roughly a 76% cut, with the allowance dropping first to £6,000 and then to £3,000 where it’s stayed. Rates have gone up too. Basic-rate taxpayers now pay 18% on gains, and higher-rate taxpayers pay 24%. Business Asset Disposal Relief has climbed as well, from 10% to 14% in April 2025 and then to 18% from April 2026, so business owners planning an exit have less shelter than they used to.
This makes tax-efficient wrapper planning essential. If you’re selling investments outside of an ISA or pension, even modest gains will now trigger a tax bill. Couples can use both their £3,000 allowances by transferring assets between spouses before selling, giving a combined £6,000 exemption. But the days of casually ignoring CGT on a general investment account are over.
The Lifetime ISA Is on Its Way Out
In June 2026, the government launched a consultation on a new First Time Buyer ISA to replace the Lifetime ISA. Under the proposals, the new product would pay the government bonus only when you buy your first home rather than monthly, and would drop the retirement savings element entirely.
It would also remove the 25% withdrawal penalty and scrap the upper age limit of 40, reflecting how much later people are now buying their first home. The consultation is open until 17 August 2026, and the new product is expected to launch in April 2028.
If you already hold a Lifetime ISA, you can keep contributing indefinitely. But for anyone considering one for retirement savings rather than a house purchase, the window to open one is narrowing.
Make the Allowances Work Together
Tax-efficient investing isn’t about picking one wrapper and hoping for the best. The real gains come from using ISAs, pensions, VCTs and the CGT allowance together, year after year. Each one shelters a different slice of your wealth, and missing a year means losing allowances you can’t get back. The investors who keep the most are the ones with a plan that accounts for all of them.
The value of your investments and the income from them may go down as well as up, and you could get back less than you invested. Past performance should not be seen as an indication of future performance.
