Tax and claiming
The prize itself is genuinely untaxed in the UK. Every pound it subsequently earns is taxed normally, and the inheritance tax question catches people out.
The UK position is refreshingly simple at the moment of winning and considerably less simple afterwards.
Lottery and gambling winnings are entirely tax-free at receipt in the UK. HMRC does not treat betting or lottery wins as taxable income — the position is set out in HMRC's own Business Income Manual at BIM22015.
Win £10 million on EuroMillions and £10 million is transferred. There is no withholding, no declaration on your return, and no tax to compute. Compare the United States, where a $100 million advertised jackpot delivers roughly $26–32 million.
The same applies to UK Lotto, Thunderball and scratch cards.
From the moment the money is yours, it is ordinary wealth and taxed like anyone else's.
Income tax on what it earns. Interest on cash deposits, dividends from shares, rental income from property — all taxable at your marginal rate, subject to the usual allowances. £10 million earning 4% generates £400,000 a year of taxable income, which puts you in the additional rate band permanently.
Capital gains tax on what it grows. Sell investments or a second property at a gain and CGT applies in the ordinary way.
Inheritance tax on what is left. This is the one that genuinely surprises winners. The prize was untaxed; your estate is not. Above the nil-rate band, inheritance tax applies at the standard rate to what remains at death.
The most common UK winner mistake is generosity without planning.
Giving money to family is natural and, in the UK, a potentially exempt transfer: no tax at the time, and none at all if you survive seven years. But if you die within seven years, the gift falls back into your estate for inheritance tax purposes, with taper relief reducing the charge on a sliding scale after three years.
A winner who gives £1 million to each of three children and dies four years later has created an inheritance tax exposure the recipients may not have planned for. This is a solvable problem — but only if it is addressed when the gifts are made, not afterwards.
The UK's treatment puts it among the more generous jurisdictions:
| Country | Position |
|---|---|
| United Kingdom | Tax-free at receipt |
| Ireland, Australia, New Zealand, Canada | Tax-free at receipt |
| Germany, France, Austria | Tax-free at receipt |
| Spain | 20% above €40,000 |
| Italy | 20% above €500 |
| Netherlands | 37.8% above €449 (from 1 January 2026) |
| United States | 24% withheld; up to 37% federal plus state |
Full table with sources in lottery tax by country.
The claim window is 180 days from the draw for National Lottery prizes. This is a real deadline — a EuroMillions jackpot of roughly £64 million expired unclaimed in December 2012 despite a public appeal, and remains the largest unclaimed prize in the world (the biggest unclaimed prizes).
Anonymity is your choice. National Lottery winners may decline publicity entirely. There is a measured argument for doing so beyond privacy: publicised wins raise bankruptcy filings among the winner's neighbours (the neighbour effect). The country-by-country position is in claiming anonymously.
The full checklist is in the first 72 hours.
General information, not tax advice. Allowances, bands and reliefs change with each Budget; take advice on your own position.
Last verified: 2026-08-29