Wealth Tax or Inheritance Tax?

THE GENERATIONAL RESET

This document is a companion to the Economic Renewal pillar (S3_04) and the Revenue Architecture (S3_05). It addresses the most frequently raised challenge to the project's core tax proposal: that an annual wealth tax above a high threshold is a more practical, politically achievable, and economically sound alternative to a high inheritance tax at death. The Generational Reset takes that challenge seriously. This document gives it the full analysis it deserves.

Key Proposals

1. The Question Stated Clearly

The Economic Renewal pillar proposes a 95% inheritance tax on all wealth at death — replacing income tax entirely. The most serious alternative is an annual wealth tax: a recurring charge on net wealth above a threshold, typically 1–2% on wealth above £10–20 million.

These are not variants of the same idea. They are structurally different interventions with different revenue profiles, different behavioural effects, different administrative requirements, and different political economies. Choosing between them is not a question of degree. It is a question of what you are trying to achieve and which mechanism is most likely to achieve it.

This document sets out both cases honestly, works through the head-to-head comparison on each key dimension, and explains where the Generational Reset lands and why. The conclusion is that a high inheritance tax is the right instrument — but the case for the wealth tax is serious enough to require a full answer, not a dismissal.

2. What Each Proposal Actually Looks Like

The Annual Wealth Tax (2% above £20m)

An annual wealth tax charges a percentage of net wealth above a threshold each year. The UK Wealth Tax Commission (2020)¹ — an independent academic body commissioned to investigate the question — proposed a one-off 1% charge on wealth above £500,000 as the most practically achievable version for the UK. A recurring annual tax on high wealth is a different and more ambitious instrument.

In the design most commonly proposed: a 2% annual charge on net wealth above £20 million. The threshold is deliberately high — there are estimated to be between 10,000 and 20,000 individuals in the UK with wealth above £20 million. The 2% rate is designed to be defensible as a modest contribution rather than a confiscatory charge.

At £50 million of net wealth: the annual charge is 2% of £30 million = £600,000 per year.

At £500 million: the annual charge is 2% of £480 million = £9.6 million per year.

Over 30 years of active wealth accumulation, a 2% annual wealth tax takes a significant fraction of total wealth — but the wealth continues to exist, to compound, and to be inherited.

The High Inheritance Tax (95% at death)

The Economic Renewal pillar proposes a 95% tax on all wealth at death, universal in application, with no exemptions by asset class and no threshold below which wealth escapes. The proposal is paired with the abolition of income tax — it is designed as a full replacement for the current tax base, not a supplement.

At £50 million: the tax at death is 95% of £50 million = £47.5 million — captured at a single point in time.

At £500 million: the tax at death is 95% of £500 million = £475 million — again at a single point.

The proposal explicitly acknowledges the lifetime gifting problem: if the death tax rate is 95% but the gift tax rate is lower, rational actors will transfer wealth before death. The design requires a unified lifetime gift and estate tax — every transfer, whenever made, counted against the same cumulative 95% threshold.

3. The Steel Man for the Annual Wealth Tax

The case for an annual wealth tax is serious and deserves honest engagement.

Breaking this down into its component arguments:

Revenue now, not later. The inheritance tax waits. A 70-year-old with £200 million may live another 20 years — during which their wealth continues to compound, their estate planning advisers work continuously, and the revenue is zero. The annual wealth tax collects every year.

Political achievability. A 2% charge on wealth above £20 million is a modest ask that polls well and is harder to caricature as confiscation. A 95% death tax is easier to attack as punitive, and political attacks on tax proposals have historically been more effective than the numbers warrant.

Avoidance is harder than it looks. The standard objection to wealth taxes — capital flight, as seen in France — is real but overstated. France's solidarity tax on wealth (ISF) had a low threshold (€800,000) that captured middle-class property owners who had nowhere to run. A tax specifically targeting wealth above £20 million applies only to people who could genuinely leave, but those people have professional ties, family relationships, and reputational stakes that make departure costly in ways the crude capital flight model ignores.

It doesn't require death. An inheritance tax cannot address the wealth already held by a 90-year-old who has spent 70 years structuring their estate. The annual wealth tax applies regardless of age and regardless of whether the holder has made any transfers.

Valuation is manageable for the largest estates. The administrative complexity of annual valuation is real, but at the £20 million threshold it applies to a small enough population that bespoke annual assessment is feasible — particularly for listed assets, which are the majority of wealth in this bracket.

4. The Case for the High Inheritance Tax

4.1 The Revenue Gap is Decisive

The first test any tax proposal must pass is whether it raises enough revenue to be worth its administrative and political costs. On this test, the two proposals are not close.

A 2% annual wealth tax above £20 million would raise an estimated £8–15 billion per year. This is a meaningful sum. It is not the £475 billion that income tax and National Insurance currently raise. It supplements the existing tax base rather than replacing any component of it — which means income tax continues, with all its labour-discouraging effects and AI-vulnerability intact.

A 95% inheritance tax, with comprehensive lifetime gift capture, applied to annual wealth transfers at death which currently run at £250–400 billion per year and will rise to £350–450 billion at the baby boomer peak (2035–2045), has a theoretical annual yield of £200–400 billion at peak. That is in the range required to replace income tax. The annual wealth tax is not.

This is not a detail. It is the core arithmetic. If the goal is structural tax base replacement — moving from labour income to wealth as the primary revenue source — the wealth tax does not get you there. It is a useful supplement. It is not a solution.

4.2 You Cannot Evade Death

The most powerful practical argument for the inheritance tax over the annual wealth tax is domicile.

To avoid an annual wealth tax, you leave. France's ISF lost Gérard Depardieu, and more importantly, many less famous wealthy individuals who quietly relocated to Belgium, Switzerland, or the UK before the tax became politically untenable. Sweden abolished its wealth tax. Spain's applies unevenly across regions. The international evidence is that annual wealth taxes above a certain rate produce capital flight that erodes the base faster than the rate increases.

To avoid an inheritance tax, you also leave — but the bar is materially higher. You must establish genuine domicile elsewhere, maintain it credibly for a period typically exceeding 17 years under current UK rules, and give up the professional, social, and family infrastructure of a lifetime. The revenue service can and does challenge sham domicile changes. Death is the ultimate verification event: at that point, the full pattern of a person's life is scrutinised. Where did they actually live? Where were their children educated? Where did they seek medical treatment? Domicile shopping is possible but costly, conspicuous, and — unlike annual tax avoidance — requires a genuine life change rather than an administrative restructuring.

The inheritance tax has structural avoidance resistance that the annual wealth tax cannot match.

4.3 Valuation at One Point, Not Every Year

Annual valuation of complex wealth is administratively formidable. A business empire comprising private companies in multiple sectors, residential and commercial property portfolios, art, agricultural land, offshore trusts, and pension structures must be valued every year. The valuation of private companies is inherently subjective — reasonable people disagree about the right discount rate, the right comparables, the right treatment of minority stakes. Taxpayers and their advisers will dispute valuations aggressively, because at a 2% annual rate, a £10 million valuation reduction saves £200,000 per year compounded indefinitely.

The inheritance tax values at a single defined point. The estate has time to prepare. HMRC applies established principles that, while imperfect, have decades of case law behind them. Disputes happen, but they happen once.

For private businesses specifically — the most complex and contested valuation question — the difference is material. Annual valuation of a growing private company creates uncertainty that the owner, the board, and the lenders must manage every year. Valuation at death, with payment terms that allow the business to continue while paying down the tax liability over time, is disruptive once. The instalment option (discussed below) largely resolves the business succession problem that annual wealth taxation creates through continuous uncertainty.

4.4 The Behavioural Model Works with Human Psychology

The Economic Renewal pillar makes a specific behavioural argument that is often missed: at 95%, spend-down is the rational response. The wealth exists for the person who built it. They can spend it, invest it in their business, give it to charity, fund ventures they believe in, or pay their children's school fees. The one thing they cannot do is warehouse it intact for their descendants to inherit without cost.

This is not a bug. It is the design intent. Money actively deployed by its owner — consumed, invested, donated, spent in the economy — is better for everyone than money held in trust for unborn grandchildren. The 95% rate maximises the incentive to deploy wealth during life.

The annual wealth tax creates a different incentive: minimise the valuation. Private companies are restructured to reduce apparent value. Property is held in entities that attract discounts. The economic energy that should go into deploying wealth goes instead into suppressing its measured value for tax purposes.

4.5 The Dynastic Wealth Argument

There is a philosophical distinction between the two instruments that the revenue numbers and avoidance mechanics should not obscure.

The wealth tax taxes successful living people on the wealth they have built. A founder who has built a £50 million company — employing 200 people, generating exports, contributing to the economy — pays 2% of their net wealth every year. The tax does not distinguish between wealth earned and wealth inherited. It does not distinguish between wealth being actively deployed and wealth sitting in offshore structures. It charges the same rate to the entrepreneur who built it and the heir who received it.

The inheritance tax taxes the transfer of wealth between generations. The living person pays nothing on their accumulated wealth — the incentive to build is fully preserved. What the tax removes is the ability to transmit accumulated advantage intact to heirs who did not build it. The Monopoly board resets between generations; the game continues within each generation's lifetime.

This distinction matters because the core argument of the Economic Renewal pillar is about dynasties, not about wealth per se. The objection is not to people building large fortunes. The objection is to those fortunes functioning as permanent multigenerational competitive advantages — creating aristocracy by another name. The inheritance tax addresses that objection precisely. The wealth tax addresses a different question.

5. The Empirical Record

France (ISF — Solidarity Tax on Wealth, 1982–2017)

France's ISF is the most frequently cited evidence in this debate, usually by critics of wealth taxes. It was abolished by Macron in 2017, replaced by a tax on real property wealth only (IFI). The standard account: it drove capital flight, reduced investment, raised less than projected, and ultimately became politically untenable.

The full picture is more nuanced. The ISF had a threshold of €800,000² — capturing not just the ultra-wealthy but upper-middle-class property owners whose main asset was their home and who had no practical way to reduce their liability. This design flaw made it politically toxic in a way that a high-threshold version would not be. The capital flight it produced was real but concentrated in mobile financial assets, not the embedded wealth of business founders. Its abolition was a political choice as much as an economic one — Macron's IFI replaced it with a tax that still raises revenue, simply on a narrower base.

The lesson is not that wealth taxes cannot work. It is that a low threshold creates a wide pool of moderately aggrieved taxpayers and a politically easy coalition against it.

Norway (Formuesskatt)

Norway has maintained an annual wealth tax since the 19th century — currently approximately 1% on net wealth above roughly £150,000 (with a higher rate of 1.1% on very large fortunes). It raises approximately 2% of GDP in revenue.³ It has not been abolished.

Norway has experienced some capital flight — estimates suggest several billion euros of wealth relocated to Switzerland in recent years, following some high-profile departures. The Norwegian government responded by tightening the rules for residents who emigrate, requiring continued tax payment for a period after departure. The flight has been manageable, not catastrophic.

Norway's experience suggests that a modest annual wealth tax with a manageable threshold can be sustained. It does not suggest it can raise the revenue required to replace income tax.

Sweden (abolished 2007), Germany (suspended 1997)

Both countries had annual wealth taxes that were suspended or abolished — Sweden because it was producing capital flight and administrative complexity, Germany because the constitutional court ruled the valuation methodology discriminatory.⁴ Neither abolition was primarily an economic decision; both reflected political economy and constitutional constraints specific to those countries.

United States (Estate Tax)

The US unified gift and estate tax — applying at death, with gifts during life counted against the same lifetime exemption — provides the closest existing model to what the Economic Renewal pillar proposes. At its most stringent (2001), the top rate was 55% on estates above $3 million. It was significantly weakened by the 2001 and 2017 tax cuts. The current top rate is 40% with a $13.6 million per-person exemption.⁵

The US experience demonstrates that a unified gift-and-estate tax system is administratively feasible. It also demonstrates the political vulnerability of estate taxes to sustained opposition framing — "death tax" polling is consistently negative. The lesson for a high-rate inheritance tax is not that the mechanics don't work, but that the political durability requires a level of public understanding that political framing will actively resist.

6. The Honest Comparison: Head to Head

7. The Key Tension: Avoidance at 95%

The most serious objection to a 95% inheritance tax is not that it is wrong in principle but that it is too high in practice. At 95%, every pound transferred to an heir costs 95p in tax. The marginal incentive to give during life, structure through trusts, make charitable donations that retain family influence, or establish offshore family offices is at its maximum. The avoidance industry will have decades to work.

This is a real concern and the Generational Reset does not dismiss it.

The design response has three components.

P2 First, the unified lifetime transfer tax. Every gift, trust transfer, or other wealth transfer made during life counts against the same 95% threshold as the death estate. This mirrors the US unified gift and estate tax model, which has operated — imperfectly but functionally — for decades. It means that transferring wealth before death does not reduce the tax; it accelerates the collection point.

P3 Second, instalment payments for business assets. Forced immediate sale of a productive private business to pay a 95% inheritance tax would be economically destructive and politically indefensible. The solution — again modelled on existing US estate tax provisions — is payment in instalments over 10–15 years for business assets that remain operational. The tax is owed; the business can pay it from its cash flows rather than liquidating. This removes the most emotionally resonant objection (the family farm, the family business) without creating the blanket business exemption that currently costs £1.3 billion per year through Business Property Relief.

P4 Third, anti-avoidance architecture. The current 40% IHT raises an effective 27% partly because the rate is high enough to motivate avoidance but not high enough to make avoidance resistance worth the political cost of closing the loopholes. A 95% rate makes every avoidance route worth closing — the revenue loss from each is large enough to justify the legislative effort. This is counterintuitive but supported by the evidence: higher-rate taxes generate more political will to close avoidance mechanisms, not less, because the revenue at stake is larger.

8. Where the Generational Reset Lands and Why

The Generational Reset proposes a 95% inheritance tax, not a 2% annual wealth tax. The reasons are:

Revenue adequacy. A 2% wealth tax above £20 million raises £8–15 billion per year. This does not replace income tax. It does not solve the structural fiscal problem. It is a useful addition to an unreformed system, not a structural alternative. Only the inheritance tax model approaches the revenue required.

Avoidance resistance. You cannot avoid death. You can relocate to avoid an annual wealth tax — and the international evidence suggests that above a certain threshold, a meaningful number of wealthy individuals will. The inheritance tax requires genuine domicile change over a very long period, is verified at the hardest-to-fake point, and has structural avoidance resistance the annual wealth tax cannot match.

Administrative tractability. Annual valuation of complex private wealth creates continuous dispute, continuous uncertainty, and a large ongoing compliance industry. Single-point valuation at death, with instalment options for business assets, is administratively simpler and legally more settled.

Philosophical precision. The problem the Economic Renewal pillar is addressing is dynasties — the permanent multigenerational transmission of competitive advantage that creates aristocracy by another name. The inheritance tax targets exactly that. The wealth tax taxes successful living people annually on wealth they are actively using. These are different interventions addressing different problems.

The spend-down incentive. At 95%, the rational response is to spend and invest during your lifetime — in your business, in your consumption, in charitable giving, in direct investment in ventures you believe in. This is economically productive behaviour. The annual wealth tax incentivises valuation suppression, which is economically unproductive.

The Generational Reset does not argue that a 2% annual wealth tax is wrong or that it has no role. As part of a broader revenue portfolio — alongside the inheritance tax, alongside the reforms to corporation tax and carbon pricing described in the Revenue Architecture pillar — a modest annual wealth levy on very large fortunes may have a role. But it is not the structural instrument. That role belongs to the inheritance tax.

9. What This Does Not Resolve

Intellectual honesty requires stating what remains genuinely uncertain.

The 95% rate may produce more avoidance than the modelling suggests. Forty years of creative structuring, offshore trust law, and philanthropy vehicles have already eroded a 40% IHT to 27% effective. The step from 40% to 95% is enormous. The assumption that a unified lifetime gift tax and instalment provisions solve the avoidance problem may be optimistic. The Gaps Register documents this.

Revenue timing is a genuine problem. The inheritance tax collects at death. The income tax revenue it replaces is needed annually. The transition period — during which the inheritance tax base builds while income tax is being phased down — requires a credible financing mechanism. The Revenue Architecture pillar addresses the sequencing, but the transition remains the most practically challenging element of the proposal.

Business succession, even with instalments, is disruptive. A private business paying down a 95% inheritance tax liability over 15 years is committing a substantial fraction of its operating cash flow to a tax obligation. For businesses in capital-intensive sectors with thin margins, this may be genuinely constraining in ways the instalment model does not fully address.

The political economy is extremely difficult. The wealth tax, precisely because it is modest, is more politically survivable. A 95% inheritance tax requires a political coalition powerful enough to pass it against the opposition of people with very large resources and very strong incentives to prevent it. The Political Renewal pillar's argument — that structural political reform is the precondition for structural economic reform — is not incidental to this proposal. It is load-bearing.