The UK's public finances are not in great shape, the government has promised not to raise the "main" taxes, and despite rumours, Manifold thinks it's unlikely that there will be a wealth tax: /Fion/will-the-uk-introduce-a-wealth-tax-0dCOOOC9tQ

What about a land value tax?

If a land value tax is introduced by the end of 2025 (realistically in the October budget), market resolves YES. The tax doesn't need to actually be in place (I assume that will start with the next financial year) but does need to be passed by Parliament.

I expect the definition of a "land value tax" will be straightforward. It doesn't need to be a tax on 100% of the land value, but it does need to be attempting to target unimproved land value (i.e. not just a property tax). Other considerations include: does the government call it a land value tax? Do mainstream media sources call it a land value tax?

Ultimately, if there is any controversy on whether it "counts" as a land value tax, I will use my judgement. I will not bet in this market. If you think any of my resolution criteria are unclear or should be refined, please let me know. For two weeks from market creation date, I might tweak the resolution criteria, so you might want to not place any very large bets in that period, especially if you intend to win on a technicality. The spirit of the market will not change.