Tory Pledge: No Inheritance Tax on Your Family Home

By Lisa Hayes · 10 October 2026

On 7 October 2026, Conservative leader Kemi Badenoch told her party conference that a future Conservative government would legislate so that nobody pays inheritance tax on their family home, scrap the planned "mansion tax" on homes worth £2 million or more, and (as promised last year) abolish stamp duty on main residences. None of it is law. It is an opposition pledge, the Tories are trailing in the polls, and the costing is disputed. But it lands on a housing market already creaking under 6% mortgage rates, so it is worth understanding what it would mean if you own a home and are weighing up a sale.

I'll be blunt about where I stand before we start. This is a story about politics, and politics rarely sells a house. Interest rates, buyer confidence and the state of your own property do that. Still, tax pledges shape behaviour at the margins, and a few groups of homeowners (older owners with big houses, anyone who has inherited a property, anyone sitting near the £2 million line) have good reason to pay attention. Let's pick it apart properly.

• £6bncost of the policy, per figures released after the speech (Estate Agent Today)
• +£1mextra tax-free amount for couples, as reported by ITV News
• £2m+value at which the planned mansion tax would bite from April 2028 (GOV.UK)
• 4.72%share of estates that paid inheritance tax in 2023-24 (Estate Agent Today)

What exactly did Kemi Badenoch promise on property?

The speech covered a lot of ground, from defence spending to youth unemployment. For homeowners, three property pledges matter. I am relying here on reporting from Estate Agent Today (Graham Norwood) and ITV News, both published within a day of the speech, because I would rather you had it as reported than as I wish it had been.

First, inheritance tax. Estate Agent Today quotes her saying: "The next Conservative government will legislate so that nobody pays Inheritance Tax on their family home." She also said she would have liked to abolish inheritance tax altogether but that it was too costly, so the party would minimise it instead. She claimed every inheritance tax bill would be cut and that the number of families paying would fall by more than half. Neither report gives a baseline or an independent source for that last claim, so treat it as a claim.

Second, the mansion tax. She said a Conservative government would repeal the High Value Council Tax Surcharge, which the current government plans to introduce in 2028. Estate Agent Today notes she mentioned it almost in passing. ITV describes it as scrapping the mansion tax on properties in England valued above £2 million.

Third, stamp duty. This one is not new. Estate Agent Today says that last year she promised to scrap stamp duty entirely on primary residences, and this speech sits on top of that. She also pledged to cut building regulations and abolish certain arm's-length bodies, including Natural England, to speed up house building and, in her words, lower housing costs.

One small wrinkle worth flagging. The two reports phrase the allowance slightly differently. Estate Agent Today's first article says couples would be able to leave up to £1 million to their families without inheritance tax; its follow-up piece and ITV say couples could leave an additional £1 million tax-free. Those are not the same thing. Until a policy paper appears, I would not build any plans on the exact figure.

Is any of this actually going to happen?

Not yet, and not necessarily ever. Let me spell out the reality.

The Conservatives lost heavily at the 2024 general election. ITV's report says they are currently behind Labour and narrowly trailing Reform UK in the polls. A pledge made at a party conference by a party that is not in government has no legal force. It becomes policy only if that party wins an election, drafts legislation and gets it through Parliament. Even then, plans like this often change shape once the Treasury has had its say.

The government of the day has its own plans, and those are the ones that bind you. The mansion tax is already announced and due in 2028. Labour has also changed how pensions are treated: from April 2027, leftover discretionary private pension pots will be added to the estate for inheritance tax purposes, according to Estate Agent Today, which says this will push more families into inheritance tax bills. If you are planning around tax rules, plan around what is on the statute book, not what is on a conference stage.

That said, pledges matter because they move the debate. If a main opposition party commits to taking the family home out of inheritance tax, it gets harder for any government to ignore the pressure. So I'd file this under "worth knowing, not worth acting on".

How does inheritance tax on a home work today?

Most people overestimate how much inheritance tax they will face, and then also underestimate how the rules can catch a home in an expensive area. Here is the current structure as set out in the Estate Agent Today article.

Allowance	Amount	What it means
Nil-rate band	£325,000	Everyone can pass this on tax-free
Residence nil-rate band	£175,000	Extra allowance if you leave the family home to children or grandchildren
Combined, for a couple	About £1m	Allowances can be combined, so up to roughly £1m can pass tax-free
Taper	Estates above £2m	The residence nil-rate band starts to reduce once the estate exceeds £2m
Spouses and civil partners	No limit	No inheritance tax on assets passing between married couples or civil partners

So a couple who own a £600,000 house and leave it to their children are, on those numbers, well inside the tax-free limit today. The pledge matters most to owners whose estates are far larger than that. If you want the detailed mechanics, we have a full walkthrough in our inheritance tax threshold guide.

Who actually pays inheritance tax on property?

Fewer people than the headlines suggest. Estate Agent Today reports that in 2023-24 inheritance tax was paid on 4.72% of estates, raising around £7 billion. That is roughly one estate in twenty-one. The pledge, in other words, would help a minority, and the benefit would be concentrated where property values are highest.

Paul Johnson made the same point on Sky News, as reported by Estate Agent Today. He said the current rules already exempt most people but catch a significant number of homes and estates in London and the Home Counties. Hold that thought, because it is the heart of the regional picture. A rule that frees up the family home from inheritance tax helps the owner of a very expensive London or Home Counties house far more, in pounds, than the owner of a modest terrace in the North who was never going to pay it anyway.

I don't say that to score a political point. I say it because many homeowners I speak to assume that every change in inheritance tax affects them. For most households it doesn't. If your home is worth less than the combined allowances and you are leaving it to your children, this pledge changes nothing for you in practice.

What would happen to the mansion tax?

The High Value Council Tax Surcharge is the official name for what everyone calls the mansion tax. According to the GOV.UK publication, it applies to properties in England valued at £2 million or more in 2026, takes effect in April 2028, and is paid by the homeowner, not the occupier, on top of existing council tax.

Property value	Annual surcharge
£2.0m to £2.5m	£2,500
£2.5m to £3.5m	£3,500
£3.5m to £5.0m	£5,000
£5.0m and above	£7,500

GOV.UK says fewer than 1% of properties in England are expected to exceed the £2 million threshold, that the surcharge is expected to raise about £430 million a year from 2028/29, and that charges will rise with CPI inflation from 2029-30. Valuations will be revisited every five years. A support scheme, reliefs and exemptions are still to be consulted on.

Repealing it, then, would matter to a very small group. But the threshold effect is the part I find most interesting for sellers. Whenever a tax cliff-edge sits at a round number, buyers and sellers start behaving oddly around it. Homes priced just under £2 million look different to homes priced just over it. If you own something in that zone, your valuation matters more than usual, and an overly optimistic agent's figure could be costly. Start with an honest independent number, and our guide on how much your house is worth shows how.

What about stamp duty?

This is the pledge that affects the most people, and it is also the oldest one in the package. Estate Agent Today says Badenoch promised last year to scrap stamp duty entirely on primary residences. Propertymark's Timothy Douglas welcomed that commitment this week.

For context, the current England thresholds, as set out by law firm Weightmans, have applied since 1 April 2025. The standard nil-rate threshold is £125,000, with 2% on the portion between £125,001 and £250,000. First-time buyers get relief up to £300,000, on properties capped at £500,000. The additional dwellings surcharge has been 5% since 31 October 2024.

If stamp duty went entirely for main homes, buyers would keep tens of thousands of pounds in the middle of the market and more at the top. In theory, that should support what buyers can afford to pay, which is good for sellers. In practice, economists often argue that a cut like this gets partly absorbed into higher asking prices. That is one reason I would not count on it lifting your sale price. It would, however, make moving cheaper, and a market where moving is cheaper is a market with more of it.

There is a catch, which Douglas flagged. He said any replacement for stamp duty must be developed with the property sector so it does not simply shift the tax burden elsewhere. His words: "The detail will matter." No party gets to remove a tax that raises billions without finding the money somewhere, and the "somewhere" is where homeowners should look hardest.

What are the critics saying?

Quite a lot, and not all of it from the usual suspects.

Paul Johnson, former head of the Institute for Fiscal Studies, called the inheritance tax policy a "very, very bad policy" on Sky News, according to Estate Agent Today. His argument is that it would encourage people to stay in large homes that may suit them poorly. He also welcomed the earlier plan to scrap stamp duty but said this new policy undoes some of that benefit. The reasoning is straightforward: stamp duty removal helps people move, and removing inheritance tax from the family home gives older owners a reason to stay put.

The costing is the other fault line. Estate Agent Today says the policy was costed at £6 billion after the speech. Badenoch described the party's accompanying savings plan as "fiscally credible", with savings of £35bn that would reduce the deficit, though that figure is the Conservatives' own. ITV reports that opponents accused the Tories of "fantasy economics" and of understating the cost of their plans. ITV's report also says the Conservatives claim all their plans are fully funded. I have not seen independent analysis from the Treasury or the IFS on the package yet, so I won't pretend to know who is right.

Will it stop older homeowners downsizing?

This is the question Estate Agent Today put in its headline, and it deserves a straight answer. My view: possibly at the edges, but I wouldn't expect a big shift.

Think about why people downsize. Usually it is a mixture of stairs, maintenance bills, loneliness in a big house, wanting cash in hand, or wanting to be near family. Inheritance tax planning is rarely the main driver, and for most people it is not a factor at all, since most estates sit under the thresholds. For the wealthy minority who do downsize partly for tax reasons, though, a policy that makes the family home tax-free on death weakens that nudge. Johnson's concern is a fair one for that group.

There is a supply angle too. Anyone who has tried to buy a family home in a popular area knows the shortage of larger houses is real. Fewer downsizers means fewer larger homes coming to market, which would tighten supply at the family end of the ladder. It would not transform anything overnight. But it is the sort of slow, grinding effect that shows up in agents' stock levels a few years later.

What is the wider market doing while politicians argue?

This is where I'd like you to keep your attention, because it matters far more to your sale than a conference speech.

Mortgage costs are the main story. Moneyfacts reported on 5 October that the average five-year fixed mortgage rate had reached 6%, and Estate Agent Today ran a report on 9 October headlined "Punishing mortgage rates hit housing market yet again". The Bank of England held Bank Rate at 3.75% in September, with three members voting for a rise, as our earlier coverage noted. The Nationwide index showed annual house price growth halving to 0.8%, and RICS reported its price balance falling to -32 in the latest survey. Put plainly, more surveyors are reporting falling prices than rising ones, by a wide margin.

Estate Agent Today's headline on 8 October, "Housing market stagnating – maybe worse to come", captures the mood. Buyers are cautious, borrowing is expensive, and sellers who price as if it were 2022 are watching their listings go stale. If you want the broader numbers, our UK house prices 2026 analysis keeps track of them.

Now compare scale. A change to inheritance tax or stamp duty, even if it happened, would be years away. A mortgage rate that squeezes what a buyer can borrow bites this week. When an opposition leader offers you a tax cut in the 2030s, do not let it distract you from the buyer who walked away from your house because their mortgage offer shrank.

What does this mean if you are thinking of selling?

Let me split it by situation, because the answer changes depending on who you are.

If your home is worth under £1 million and you are not leaving a huge estate. Nothing in this speech changes your decision. Sell on the usual grounds: your plans, your finances, and what buyers can afford now.

If you are an older owner in an expensive postcode who has been weighing up downsizing. Resist the temptation to wait for a tax change that may never come. Your costs of waiting are real: bills, maintenance, and a market that may move against you. The tax benefit is hypothetical, dependent on an election result and on legislation passing intact. If downsizing makes your life better today, do it on those terms.

If your home sits around the £2 million mark. The mansion tax is the live issue, not the Conservative pledge. It is the law as announced, due from April 2028, with consultation on reliefs still open. Be careful about valuation, because the surcharge is tied to a value assessed in 2026 and revisited every five years. Whether you sell, hold or keep an eye on the political weather is a question for a tax adviser who knows your circumstances, not for a blog post.

If you have inherited a property. Different story. Inheritance tax is only part of what you face. There are sale costs, council tax on an empty house, and the pull of siblings who disagree. Our guides on selling an inherited property and whether siblings can force a sale cover the practical side.

What should homeowners do now?

Here is what I'd actually do, in order.

• Get a realistic price. With the RICS price balance at -32, buyers have the upper hand. An overpriced listing sits and then sells for less after weeks of reductions. Start from evidence, not hope.
• Know your net, not your headline. Agent fees, legal costs and any tax add up. Our breakdown of estate agent fees in 2026 will help you do the sums.
• Keep a watching brief on legislation. The things that bind you are the mansion tax (April 2028), the pension-in-estate rule (April 2027) and whatever the next Budget brings. Pledges from opposition parties are noise until they are not.
• Don't sit on a hunch about a tax cut. If you need to move for life reasons, the cost of waiting for a hypothetical policy usually outweighs the benefit.
• Compare your routes to market. A conventional agent sale gives you the best shot at full price but takes longer; in a slow market, a cash buyer can offer certainty. Our guide to cash house buyers explains how the trade-off works.

What is the outlook?

Politically, expect more of this. Housing taxes are now a permanent feature of party conference season, with stamp duty, council tax, inheritance tax and capital gains tax all in play. We have already covered rumours about capital gains tax and the Resolution Foundation's critique of stamp duty in recent weeks. Each party wants to be seen as the friend of the homeowner, and each has to find the money.

For the market itself, the sensible reading is that the mortgage rate environment will remain the dominant factor until it eases. As Estate Agent Today put it, the market is stagnating and there may be worse to come. If you need to sell, speed and pricing discipline will serve you better than waiting on policy. If you do not need to sell, you have the luxury of patience, and tax pledges are a fine thing to watch while you use it.

The one thing I'd avoid is letting a headline drive a big decision. Badenoch's pledge is a signal of where one party wants to go. Your house, your finances and your timeline are what you actually live with. If you are weighing up a sale and want to see what real buyers would pay, you can compare offers and get a valuation without commitment, and make the call yourself when the numbers are in front of you. If you want to speed things up, our guide to selling a house fast shows what's possible.