What Andy Burnham Would Mean for Your Savings and Investments

Keir Starmer resigned as Prime Minister on 22 June. Andy Burnham is the only declared candidate to replace him. Nominations opened on 9 July, and unless a challenger emerges before they close, Labour will crown him leader at a special conference on 17 July. He would then walk into Downing Street within days.

So this isn’t speculative gossip anymore. This is the most likely next Prime Minister of the United Kingdom, and you deserve to know what that could mean for your money before the headlines get ahead of the facts.

Nothing here is confirmed policy. Burnham hasn’t published a manifesto and won’t need to fight a contest to win the job, which means he has less pressure than usual to spell out his plans in detail.

What follows is built from his own speeches and interviews, and from the people around him who are shaping his agenda. I’ll flag clearly where something is a firm position and where it’s still just direction of travel.

Capital gains tax is the one to watch

Quick explainer first, because this term gets thrown around a lot without anyone actually explaining it. Capital gains tax is the tax you pay on the profit when you sell something that’s gone up in value: shares, a fund, a second property, or a business. You’re not taxed on the wholesale price, just the gain.

So if you bought shares for £10,000 and sold them for £15,000, you’d only be taxed on the £5,000 profit, and only above your annual tax-free allowance of £3,000.

This is where I’d focus your attention first. Burnham himself hasn’t put his name to a specific number, but several people close to him have. Wes Streeting, tipped as a possible Chancellor, has called for capital gains tax to be brought in line with income tax rates, describing it as a “wealth tax that works.”

Louise Haigh, who’s been organising Burnham’s transition into government, has argued for the same thing in print.

Right now, capital gains tax sits at 18% for basic rate taxpayers and 24% for higher and additional rate taxpayers. If it moved to match income tax bands, that’s 20%, 40% or 45% depending on what you earn.

Wealth manager Rathbones has calculated that a higher rate taxpayer selling assets worth a £50,000 gain could see their bill jump by more than £7,500. On a £10,000 gain, a basic rate taxpayer might pay just over £100 more.

This applies to gains made outside ISAs and pensions, so shares, funds, a second property, or a business you’re selling. It doesn’t touch anything held inside a tax wrapper.

I’ve already seen reports of entrepreneurs and investors rushing to sell now, ahead of any change, and financial advisers are fielding a sharp rise in enquiries.

My honest view: reacting to a rumour by triggering a tax bill today, on the chance a bigger one might arrive later, isn’t a plan. It’s a gamble. If you have a sale already in motion, it might be worth asking your adviser whether accelerating it makes sense. If you don’t, I’d be cautious about forcing a decision based on speculation alone.

ISAs look safe for now, but not untouchable

There’s been talk of capping tax relief on ISAs, which currently costs the Treasury around £7 billion a year in lost income tax and capital gains tax.

Only around 20% of ISA holders have more than £50,000 in one, so any cap would likely be aimed at larger pots rather than typical savers. I haven’t seen anything from Burnham himself on this, and it reads more like an idea floating in tax policy circles than something close to being adopted.

The scheduled cut to the Cash ISA allowance, due in April 2027, is a separate matter and was already planned before Burnham’s rise. Whether he keeps it, delays it, or scraps it is genuinely unclear at this stage.

Property is the other big one, and it gets its own newsletter

Burnham has also backed a specific proposal to scrap council tax and stamp duty entirely, replacing them with a single annual property tax.

It’s the most concrete thing he’s put his name to on tax, and there’s enough detail in it, who’d pay more, who’d pay less, what it means if you’re a landlord, that I’ve given it a full article of its own rather than squeezing it in here. If you own a home or you’re thinking about buying one, that’s the piece to read.

Inheritance tax and pensions: no fresh signals

The change bringing unused pension pots into the scope of inheritance tax is still scheduled for April 2027. Burnham hasn’t said he’ll reverse it, and he hasn’t confirmed he’ll keep it either.

Years ago, he floated replacing inheritance tax altogether with a 10% care levy on savings, assets and homes, to help fund a National Care Service. That idea hasn’t resurfaced since he became the frontrunner, so I wouldn’t put much weight on it returning in its original form.

What he has ruled out

Burnham has committed to keeping the 2024 Labour manifesto pledge not to raise income tax, VAT or National Insurance rates during this Parliament.

He’s also said he’ll stick to the government’s existing fiscal rules on borrowing, which is one reason markets have stayed relatively calm about his likely arrival, rather than reacting the way they did to unfunded spending promises in autumn 2022.

He has, separately, raised concerns about frozen income tax thresholds dragging more pensioners into paying tax, and said his team are looking at this “properly.” That’s a comment, not a policy, but it’s worth noting given how many people it affects.

Where this leaves you

Burnham’s own team has been careful to project caution and continuity on the big numbers, income tax, VAT, National Insurance, borrowing rules, precisely because a new Prime Minister with no mandate from a general election can’t afford to spook the markets in his first weeks. But the people shaping his agenda behind the scenes are talking openly about taxing wealth and assets more heavily than income.

My advice, for what it’s worth: don’t restructure your finances around a rumour. Do use your annual ISA and pension allowances as you normally would. If you’re planning a business sale or sitting on a large capital gain and the timing is flexible, that’s a conversation worth having with a qualified adviser now, while the current rules are still the current rules.

Watch this What Could Andy Burnham Mean For Your Money for more insights.

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This article is for general information and doesn’t constitute personal financial advice. Everyone’s circumstances are different, and if you’re weighing up a decision that could be affected by any of this, please speak to a regulated financial adviser before acting.

Sources:

• Wikipedia, Andy Burnham
• AFP via France24, “Labour leadership contest takes Burnham closer to UK PM’s office,” 9 July 2026
• Al Jazeera, “UK Labour leadership nominations begin: Who’s running and how it works,” July 2026
• City AM, “Burnham tax plans spark investor rush to bank capital gains”
• MoneyWeek, “Could Andy Burnham raise capital gains tax?”
• Yahoo Finance UK, “The capital gains tax changes Burnham could make”
• Grant Thornton, “Andy Burnham as PM: CGT, inheritance tax and your wealth”
• Chartered Institute of Taxation, “Andy Burnham’s tax agenda: early signals for a probable premiership”
• Blevins Franks, “All change at No.10: what about tax?”