Lottery winnings in the UK are completely tax-free — there is no Income Tax or Capital Gains Tax on the prize itself, no matter how large. However, what you do with the money afterwards can trigger a tax bill. Here is what you need to know in 2026/27.
Quick Answer: Tax on Lottery Winnings
| Tax | Applies to the lottery prize? |
|---|---|
| Income Tax | No — prizes are fully exempt |
| Capital Gains Tax | No — prizes are fully exempt |
| Inheritance Tax | No — on the prize itself, but IHT rules apply to subsequent gifts |
| Stamp Duty Land Tax | No — unless you use winnings to buy property (SDLT applies normally to the property purchase) |
Why Lottery Winnings Are Tax-Free
Under UK tax law, lottery and gambling prizes are not classified as income — they are windfalls. The Government taxes gambling at the operator level via Gambling Duty, Remote Gaming Duty, and General Betting Duty. By the time you win, the tax has already been collected from the operator.
This principle has applied in its modern form since 2001, when betting duty on punters was abolished. It applies to:
- National Lottery (Lotto, EuroMillions, Thunderball, etc.)
- Online lotteries licensed in the UK
- Casino winnings (in person or online)
- Sports betting and horse racing
- Poker winnings
- Bingo prizes
- Spread betting (treated as gambling, not investing)
There is no Self Assessment requirement for the lottery prize itself. You do not need to tell HMRC.
What Becomes Taxable: The Winnings After the Win
The prize is tax-free. The returns you earn on investing or saving that money are not.
Bank account interest
If your winnings sit in a bank or savings account, the interest is taxable above your Personal Savings Allowance:
| Taxpayer | Personal Savings Allowance | Tax rate on excess |
|---|---|---|
| Basic rate (up to £50,270) | £1,000 | 20% |
| Higher rate (£50,271–£125,140) | £500 | 40% |
| Additional rate (over £125,140) | £0 | 45% |
A £1 million win in a savings account at 4.5% generates £45,000/year in interest. A higher rate taxpayer pays 40% on £44,500 = £17,800/year in Income Tax — just on the interest.
Investment returns
If you invest winnings in shares or funds outside an ISA, dividends and capital gains are taxable in the normal way.
Rental income
If you use winnings to buy property and let it out, rental income is subject to Income Tax and the normal property income rules apply.
Smart Tax Planning After a Big Win
| Strategy | Benefit | Annual limit |
|---|---|---|
| Stocks and Shares ISA | Interest and gains tax-free | £20,000/year per person |
| Cash ISA | Interest tax-free | £20,000/year (combined ISA limit) |
| Premium Bonds | Prizes tax-free | £50,000 per person |
| Pension contribution | Tax relief at your marginal rate | Up to £60,000/year (Annual Allowance) |
| Spouse’s ISA | Tax-free returns on their share | £20,000/year |
A couple can shelter £40,000/year in ISAs and £100,000 in Premium Bonds immediately.
Inheritance Tax: The Big Risk After a Large Win
The winnings themselves are not subject to IHT — but they form part of your estate if held at death. Any amount above your nil-rate band (£325,000, or £500,000 with the residence nil rate band) is taxed at 40%.
Gifting after a win: if you want to pass money to family, the normal IHT rules apply:
- Gifts to a spouse or civil partner: always IHT-free
- Annual gifting exemption: £3,000/year per person
- Regular gifts from income: can be IHT-exempt if they meet the “gifts out of income” rules
- Large outright gifts: Potentially Exempt Transfers (PETs) — IHT-free if you survive 7 years
See our inheritance tax gifting guide for the full PET rules.
Worked Example: £100,000 Win — Tax Position
Sarah wins £100,000 on EuroMillions. She is a higher rate taxpayer (salary £60,000).
- On the prize: £0 tax — fully exempt
- She deposits £100,000 in an easy-access account at 4.5%: interest = £4,500/year
- Higher rate PSA: £500
- Taxable interest: £4,000 at 40% = £1,600/year Income Tax
- Better option: Sarah puts £20,000 into a Stocks and Shares ISA and £50,000 in Premium Bonds
- ISA returns: tax-free
- Premium Bonds prizes: tax-free
- Remaining £30,000 in savings: £1,350 interest, within her £500 PSA + basic rate band — much lower tax
See our Premium Bonds tax guide, ISA allowance 2026/27, and inheritance tax guide.