UK's Proposed 2% Wealth Tax: What Families With Assets Over £10m Need to Do Before the October Budget

Wealth manager reviewing UK Budget 2026 documents with 2 percent wealth tax calculations
John John GreenWealth Management
7 min read September 7, 2026

Chancellor John Healey stepped onto a stage in Coventry on Monday 7 September 2026 and told Britain the economy was "turning a corner" — but for the country's wealthiest families, the sharpest bend ahead is a single digit that has been trending in UK search results since the speech ended: "2". That figure refers to the proposed 2% annual levy on net assets above £10 million, a measure with growing Labour backbench support that analysts expect to feature in Healey's Autumn Budget on 28 October. With fewer than seven weeks remaining, wealth managers across the country report a surge in enquiries from clients asking one precise question: does this apply to me?

What exactly is the "2%" that has generated so many searches today?

The proposal circulating in Westminster is a standing annual wealth tax — not a one-time charge but a recurring levy, paid every year regardless of whether assets produce income in that period. Under the most widely discussed version, any individual whose total net assets exceed £10 million would pay 2% per year on the portion above that threshold. An estate valued at £13 million would therefore attract a levy of £60,000 annually (2% applied to the £3 million above the floor).

The idea has been formally costed by the Wealth Tax Commission and championed by organisations including the Fabian Society and a bloc of Labour MPs. Revenue estimates vary dramatically: proponents claim the measure could raise up to £24 billion per year; critics, including several figures inside Cabinet, put the figure close to zero, arguing that capital flight, administrative complexity, and behavioural avoidance would gut the base. Chancellor Healey's Coventry speech did not explicitly endorse or rule out the tax — which, in Budget season, amounts to a signal that it deserves serious attention before 28 October.

Who would actually be affected — and how close to £10 million are you?

HM Treasury data cited in the Resolution Foundation's 2025 wealth audit suggests that fewer than 22,000 individuals in the UK hold net assets above £10 million. That represents approximately 0.04% of the adult population. However, the net is cast more widely than the headline number implies. The threshold would encompass:

  • Primary and secondary residential property at current market value — not historic purchase price
  • Defined-contribution pension pots in drawdown or preservation above specified limits
  • Business assets not qualifying for Business Property Relief (BPR)
  • Listed and unlisted shares, trust interests, and overseas holdings for UK-domiciled individuals

According to the ONS Wealth and Assets Survey 2025, the top 1% of UK households hold median net wealth of £3.6 million. The upper band of that group — those in the top 0.1% — can reach £10 million faster than the round figure implies, particularly where property valuations continue to outpace income growth. Anyone who owns several buy-to-let properties, holds a substantial pension, and retains profits in a company structure should seek professional verification of where their total consolidated picture stands before making any assumptions.

Three other Budget threats that compound the "2%" risk

The proposed wealth levy cannot be assessed in isolation. Wealth managers are warning clients that three further measures under active Budget speculation would interact with a 2% annual charge in ways that dramatically alter long-term planning priorities.

Capital gains tax rate alignment. Currently charged at 18% (basic rate) or 24% (higher rate), CGT could rise to 20%, 40%, or even 45% if the Chancellor aligns rates with income tax brackets. According to the Chartered Institute of Taxation, broader CGT reform of this kind could raise approximately £14 billion annually — making it one of the most fiscally attractive levers available to a Chancellor facing pressure over borrowing costs.

Abolition of CGT uplift at death. Today, assets passed to heirs are rebased to market value at the date of death, effectively wiping out any capital gain accumulated during the deceased's lifetime. Abolishing this "uplift" could raise between £1.5 and £2 billion per year according to analysis from Rathbones. For estates holding long-appreciated property or shares accumulated over decades, the impact would be felt by the generation that inherits, not the one that created the wealth.

Pensions drawn into inheritance tax. This one is not speculation — it is already legislated. From 6 April 2027, most unused defined-contribution pension assets will be brought within the inheritance tax estate. For those who structured their wealth around leaving a large pension pot to children — previously exempt from the 40% IHT rate — this change fundamentally alters the maths of estate planning, with or without any new wealth tax.

What does 2% actually cost a family holding £14 million?

Consider a scenario representative of many families currently approaching wealth managers for the first time. A couple in Cheshire hold assets structured as follows on 7 September 2026:

  • Main residence (Altrincham): £2.4m
  • Buy-to-let portfolio, four Manchester properties: £4.6m
  • General investment account (GIA) in listed shares, £2.1m total of which £850,000 is unrealised capital gain
  • Combined defined-contribution pension pots: £3.2m
  • Retained profits in a family holding company: £1.9m

Total net assets: £14.2m — £4.2m above the proposed £10m threshold.

If the 2% wealth tax passes: The annual charge would be 2% of £4.2m = £84,000 per year, arising regardless of whether the properties generate sufficient net rental income to meet it. If gross rental income from the portfolio is approximately £138,000 per year and net income after costs and tax is around £70,000, the wealth levy alone would exceed the portfolio's annual net yield.

If CGT rates rise to 40% from 28 October and the couple sell the GIA: An £850,000 capital gain taxed at today's 24% rate costs £204,000. At 40% the same gain costs £340,000. A disposal before Budget day — if they judge the rate rise likely — saves £136,000 in a single transaction. If they wait and the rate does not change, they have lost nothing except a little time.

If the CGT death uplift is abolished and either partner dies with the GIA intact, their heirs inherit the £850,000 gain. That gain could be taxed at whatever CGT rate applies at the time of eventual disposal, layered on top of an IHT charge at 40% on the broader estate above the £325,000 nil-rate band — which has been frozen since 2009 and shows no sign of movement.

If the April 2027 pension IHT rule is applied: The combined £3.2m pension pot, previously a clean inheritance vehicle outside the estate, is drawn inside it. Children inheriting this pension after April 2027 could face an IHT charge of over £1.15 million on an asset that previously passed tax-free. No single measure here is independently catastrophic. Together, however, they represent a structural shift in how UK wealth is transmitted between generations — and the window to act before the first measure takes effect is narrowing by the week.

What should families do before 28 October?

Wealth managers are aligning on a clear pre-Budget sequence. The order of steps matters because some actions — particularly realising capital gains at current rates — must happen before Budget day to be effective.

Step one: establish a consolidated asset picture. Many families discover on first audit that their total net assets are higher than expected once residential property, pension pots, company value, and trust interests are added together. A formal asset review with a qualified wealth adviser creates the factual baseline from which every subsequent decision flows.

Step two: review unrealised capital gains. If CGT rates are set to rise on 28 October, disposals made before the Budget lock in today's rates. This is not tax avoidance — it is a straightforward timing decision over a taxable event that will occur at some point regardless. Independent advice on which assets to sell, in what order, and how to sequence the resulting income is essential to avoid inadvertently triggering other taxes.

Step three: audit pension ownership and nominations. With the April 2027 pension IHT change now certain regardless of what the Budget does, retaining a large unused pension as a primary inheritance vehicle is no longer straightforwardly tax-efficient. A wealth adviser can model whether drawing down earlier, purchasing a lifetime annuity, or revising death-benefit nominations produces a better outcome for your beneficiaries.

Step four: document BPR and APR eligibility. Business Property Relief and Agricultural Property Relief currently exempt qualifying assets from wealth assessments. If the Budget tightens these reliefs, families with eligible assets will want documented evidence of their current status to make any legal challenge or transition planning viable.

For the current legislative framework on inheritance tax thresholds and rates, the HMRC guide at gov.uk/inheritance-tax provides the statutory baseline from which any Budget changes will depart. If you want to model how the specific combination of measures might affect your own asset structure, ExpertZoom's wealth management specialists offer pre-Budget consultations for high-net-worth individuals and families ahead of the 28 October announcement.

This article is for informational purposes only and does not constitute financial, tax, or legal advice. Consult a qualified wealth management adviser or tax specialist before taking action based on Budget speculation.

format_used: Explainer Q&A

Advantages

Quick and accurate answers to all your questions and requests for assistance in over 200 categories.

Thousands of users have given a satisfaction rating of 4.9 out of 5 for the advice and recommendations provided by our assistants.